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 Sr No Vol. No Clause/Section Page No No 1 II 1.2 5 2 II 1.3 6 Present Clause
Proposed SCADA Systems in Ahmedabad under UGVCL Existing ERP (e‐Urja) in all the DISCOMs: To be added clause.5 Amended Clause
Revised table is enclosed herewith
5.Bandwidth 1) Data centre to Corporate office: 16 MBPS OFC 2) Corporate office to Circle office: 4 MBPS OFC 3) Circle office to Division office: 2 MBPS OFC 4) Division office to Sub division office: 2 MBPS Copper 3 II 1.4 7 R‐APDRP IT System under implementation: To be added in function items Annexure: Proposed SCADA Systems in Ahmedabad under UGVCL Conversion of Conductor Rabbit to Dog XLPE U/G Cable Ring Main Units (RMU) Sectionalizes Conversion of existing RMUs to motorized Fault Passage Indicators (FPI) Sub‐Station Covered (RTUs) SCADA Implementation Agency SCADA Consultant Sub Station to SCADA centre Bandwidth SCADA centre to Sub division Bandwidth SCADA centre to DR site Bandwidth 495 km 23.66 km 519 numbers 785 numbers 142 numbers 600 numbers 19 numbers M/s. Chemtrols Industries Ltd. M/s. Kalki Communication Pvt. Ltd. 2 MBPS 64 KBPS 2 MBPS 
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Bandwidth available from data centre to sub division : 4 MBPS (MPLS) Bandwidth at Disaster recovery site for E‐urja and RAPDRP data centre : 16 MBPS 1. Amendment 2A Single Phase Meter Sr. Volume Clause No. No. No 1 II 6.7.1 Page Present Clause No 52 (a)Optical port & RS 232 will be provided for local communication. The port for local communication and baud rate shall be as per IS 15959(once the single phase specification is defined). In addition to this the meter will have a provision for an ‘integral modular plug in type’ OR ‘built in type’ Communication Module for NAN (Neighborhood Area Network) i.e. from Meter to Data Concentrator or directly for WAN (Wide Area Network). This Communication Module could operate on Low Power Radio / RF with Mesh/ PLC/GPRS (directly up to HES). The communication module option can be decided at the time of actual implementation by the utilities. Different communication technologies shall follow relevant National or International Standard as applicable. (b) It should not be possible to reset the energy reading in the meter or make any change in the data stored in the meters either current or historical, with the MRI. (c) The compatibility of transferring data from the meter to MRI and then to the base computer system (BCS) should be easily established; any change in language or any other reasons, the supplier shall modify it at his own cost within the guarantee period. 2 52 II 6.7.2 Amended Clause Meter Communication: Meter should have Optical & RS232 (RJ45) port for local reading and configuration. This port should be physically accessible for authorized person only with adequate sealing provision. Pin details for RS232(RJ45) is as under 1 ‐ +5V 2 ‐ CD 3 ‐ DTR 4 ‐ GND 5 ‐ RX 6 ‐ TX 7 ‐ CTS 8 ‐ RTS (a) Meter should be able to support inbuilt communication modems (RF/PLC). (b)Communication protocol should be according to IEEE 802.15.4G/6LoWPAN or any other standard protocol. (c)Meter should be able to form mesh with self‐forming and self‐
healing capability. No pre‐installation programming or post installation programming shall be required for this purpose. (d)In case of RF communication the frequency band for RF equipment shall be of approved frequency range from Govt. of India and should be license free. And bidder should adopt adequate procedure as per norms of Government of India. (e) Any version upgrade or functionality change like MD Integration period, MD reset date, TOD timing & Zone, Display parameter addition/alteration etc. in meter shall be done over the air through DCU (f)Communication protocol for communication from Meter to DCU and from DCU to Server should be shared to utility. Meter Reading Instrument (MRI) (a)The MRI shall be supplied in the ratio of one for each 1000 nos. a. The CMRI shall be supplied in the ratio of one for of meters free of cost along with battery charger. each 1000 nos. of meters free of cost along with (b)The MRI shall have facility to store minimum 200 nos. of battery charger. meter’s data. Further, there should be a facility in MRI to provide b. The MRI shall have facility to store minimum 200nos. Of meter’s data. The supplier shall indicate nos of meters’ data which CMRI could retrieve. c. Further, there should be a facility in CMRI to provide the transfer of meter data to Computer through USB port. d. The MRI shall be capable for down loading readings of other makes of meters. The bidder shall give an undertaking to this effect. e. The MRI shall have a feature to read multiple meters within the range without pre‐
programming the meter serial numbers in advance. f. It shall be responsibility of the meter manufacturer to provide the required software and all the facilities required by the purchaser, to use the MRI for reading and retrieving the data from the meter and to download the data to BCS free of cost till the expiry of guarantee period. The downloaded data shall be converted to the ASCII or database file format for easy integration with the existing billing software of GUVNL. 3 II 6.7.4.X 54 The Tamper events like Magnet, Earth load, One line drawl (neutral missing), neutral Disturbance (for tamper No. 26 to 28) & reverse current should be logged with date and time (Occurrence & Restoration). 20 nos. of each event should be recorded. The tamper of Cover Open Event, Magnetic Interference shall be communicated back the transfer of meter data to computer through RS 232/ USB port. However both of the ports are preferable. (c)The data downloading time (from meter to MRI) shall not exceed 5 min. for each meter (d)After successful downloading, indication shall be available on MRI. (e)The CMRI shall be small, light and ergonomic. (f)The rechargeable battery capacity of the CMRI shall be minimum 12 hours of downloading time and minimum 72 hours of standby time between successive charges. (g)The MRI shall be capable to download readings of other makes of meters with same software which is essential to show the inter‐operability. (h)The MRI shall have possibility to read meters through RS232 (RJ45) & USB Port. Manufacturer shall share the communication protocols to utility. (i)It shall be responsibility of the meter manufacturer to provide the required software and all the facilities and support required by the purchaser, to use the CMRI for reading and retrieving the data from the meter and to download the data to Base Computer on free of cost basis till the expiry of guarantee period. (j)The CMRI shall be capable to download all required data as mentioned under Parameters to be Stored after sending respective command from CMRI. (k)The CMRI shall indicate the status of % of memory utilized and number of meters read. (l)The CMRI shall possess a specific serial number, which cannot be changed / altered. (m)Necessary upgrades shall be possible in CMRI software and shall be supplied for downloading simultaneously the existing parameters and any parameters added in future specifications of meters. A copy of operation manual and software CD shall be supplied along with each CMRI. The Tamper events like Magnet, Earth load, One line drawl (neutral missing), neutral Disturbance (for tamper No. 26 to 28) & reverse current should be logged with date and time (Occurrence & Restoration). 20 nos. of each event should be recorded. The tamper of Cover Open Event, Magnetic Interference shall be communicated back to HES as and when they occur. These tamper events shall be sent as an alarm to the 4 II 6.7.4‐xi 54 5 II 6.7.5 54 6 II 6.7.7 55 7 II 6.9.6 56 to HES as and when they occur. These tamper HES which shall store the same in its database. events shall be sent as an alarm to the HES which Snap Shots: Numerical values of voltage, Current, Power Factor, shall store the same in its database. Energy (kWh), Date and Time of logging of the occurrence and restoration of tamper events. 65 (Power ON) days data to be recorded with 15 45 (Power ON) days data to be recorded with 15 minutes minutes integration period with date & time integration period with date & time stamping for Active Energy stamping for Active Energy Reading, Average Reading, Average Voltage, Average Current., average PF, Average Voltage, Average Current., average PF, Average Kw Kw Alarm: Alarm for power on/off, Under Voltage, Alarm: All possible alarm conditions not necessarily limited to Over Voltage, Over Current, Mal functioning of mentioned parameters should be communicated to HES within 1 relay, malfunctioning of diagnostic events shall be minute. Alarm conditions should be configurable from HES generated and communicated to the HES (a)Battery drained immediately. It should be definable at HES. (b)NVM Failed (c)Magnet Tamper occurred (d)Meter Cover opened (e)Unauthorized programming attempt (f)power on/off, (g)Under Voltage/ Over Voltage, (h)Over Current, (i)Mal functioning of relay, (j)malfunctioning of diagnostic events Programmability: It should be possible to program Programmability: It should be possible to program the parameters limits / values from remote through sufficiently the parameters limits / values from remote through sufficiently adequate security mechanism. adequate security mechanism. Once programmed it should be possible for the programmed parameters to come into effect Once programmed it will be possible for the programmed parameters to come into effect from from a certain date & time. Meteorology under such condition must remain intact. a certain date & time. Meteorology under such condition must remain intact and shall not be upgradable from remote. New clause adde7 Base computer software (BCS)shall be supplied having minimum following specifications : (a)The BCS software shall be user friendly. It shall give all details adequate for analysis. The software shall have the facility to convert all the consolidated information / data into required format so that it can be synchronized Head End in case of AMI failure. (b)Meter manufacturer shall provide API with documentation for downloading the data from the MRI. (c)A provision should be given for validating downloaded meter data as well as to generate standard file format as per utility 8 II 6.5.8 52 The meter shall be capable to measure and display (I) Cumulative Total (Fundamental+ Harmonics energy) KWh for tariff billing purpose, Instantaneous KW, Instantaneous Voltage, Instantaneous line current, Power Factor , MDKW, time and date. 9 II 6.5.6 51 The meter should record Total cumulative KWh reading and KW – MD at preprogrammed date and time of the month for minimum last 12 calendar months and stored in NVM with TOU ( Four Tariff register and eight time zones ) requirement. (d)The BCS shall be executable on Window XP and higher versions/Linux or any other standard operating system. (e)All the information about energy, maximum demand and their respective billing register readings shall be shown in a manner which user can easily understand. The software shall be capable of preparing CMRI to read the meter information or time setting of the meter. (f)It is preferable that exhaustive help facility shall be available with the software so that user can use all the features of the software by just reading the help contents. (g)The BCS should have adequate security provision for programming / change of functionality/ parameters with at least two level passwords. Parameters to be measured: The actual supply wave of related voltages and currents should be sampled out at the rate of minimum 3000 samples per second (a)Active Energy: Cumulative Total (Fundamental + Harmonics) forwarded active energy. (b) Instantaneous Voltage (c) Instantaneous Line Current (d)Power Factor (e) Instantaneous Power in KW (e)Frequency (f)MD in (KW)for 15 minutes integration period (g)Date and Time Parameters to be stored : (a) Instantaneous Data: ( This is real time data) 1. Real Date and Time 2. Instantaneous Voltage 3. Instantaneous Phase Current 4. Instantaneous Neutral Current 5. Instantaneous Power Factor 6. Instantaneous Power 7. Current cumulative Energy (b)Billing Data: 1.Current cumulative absolute total Energy (KWH) with date and time 2.Cumulative absolute Total Energy (KWH) for last twelve resets 10 II 6.5.11 52 New clause added 11 II 6.5.12 52 New clause added date and time 3.Current Maximum Demand in KW with date and time 4.Maximum Demand in KW for last twelve resets with date and time 5.Average Power factor since last reset with date and time 6.Average Power factor for last twelve resets with date and time 7: TOD Cumulative Total Energy (KWH)& KW MD for last twelve resets with date and time (c) Load Survey Data:(For 45 days with 15 minutes integration period) 1.Date and Time 2.Average Voltage 3.Average Current 4.Average Power factor 5.Energy (KWH) : Current cumulative absolute total energy (KWH) reading 6.Average Maximum Demand in KW Last Configuration Details: 1.RTC 2.TOU 3.MD Integration Period 4.Unauthorised programming attempt Self‐Diagnostics: 1.Real Time Clock (RTC) status 2.Non‐volatile Memory (NVM) status 3.Battery status Meter shall have facility for 8 nos. of programmable TOD Zone. Presently it shall be clubbed in three zone i.e. Peak, Night & other as under: 1: Peak Hours: 6.oo to 11.oo & 18 .00 to 22.00 2: Night Hours : 22.00 to 6.00 ( next day morning) 3: Other : 11.00 to 8.00 Time synchronization: Meter time & date synchronization should be possible through central system. 12 II 6.5.13 52 New clause added Power Quality: Power Quality information should be stored in meter and should communicate to HES as per AMI requirement. Following parameters are required. (1)Power on/off (2)Over Voltage (3) Under Voltage 2. Amendment 2B Three Phase Whole Current Meter Sr. Volume Clause Page Present Clause No. No. No No 1 II 6.A 82 The meter shall be capable of measuring and storing in the memory and displaying the electrical quantities within specified limits of error for poly phase supplies (i.e. 3‐ phase, 4 wire system with star point (neutral) solidly grounded or floated) of 3 phase Delta or Star connected load having a floating or a grounded Star point with balanced or unbalanced loads at all power factors. Apparent demand and energy shall be derived from active energy (cosine part recording arrangement) and reactive energy (sine part lagging and leading power factor recording arrangement) through vector summation of Active energy and only lagging Reactive electrical energies traversed for 15 minutes integration period. The meter shall also be capable of measuring, monitoring and storing in the memory minimum four (4) register with 8 zones of time of day electrical quantities for pre‐
specified periods of the day. Zones for TOD ‐ (A) PEAK HOURS ‐ 6.00 To 11.00Hrs, 18.00 to 22.00 Hrs. (B) NIGHT HOURS ‐ 22.00 TO 6.00 HRS. (C) Balance Hours ‐ 11.00 to 18.00 HRS 6. A.1. Active energy: Absolute Cumulative kWh energy. 6. A.2. Reactive energy: Cumulative KVARH lagging with Amended Clause The meter shall be capable of measuring and storing in the memory and displaying the electrical quantities within specified limits of error for poly phase supplies (i.e. 3‐ phase, 4 wire system with star point (neutral) solidly grounded or floated) of 3 phase Delta or Star connected load having a floating or a grounded Star point with balanced or unbalanced loads at all power factors. The meter shall be capable of measure, monitor and store electrical quantities i.e. Active Energy, Reactive Energy (lag), Apparent Energy , KW MD in the memory in minimum 8 zones of time of day (TOD) for pre‐specified periods of the day. Presently it shall be clubbed & configured in three Zone i.e. Peak, Night & other as under : 1: Peak Hours: 6.oo to 11.oo & 18 .00 to 22.00 2: Night Hours : 22.00 to 6.00 ( next day morning) 3: Other : 11.00 to 8.00 It shall be programmable to modify as per requirement up to eight zone. The meter shall have 3 modes for display: Mode‐1 – (Main Mode) This mode shall display billing and tamper parameters. Mode‐2‐This mode shall display observation parameters like TOD zone wise energies, MD, etc. Mode‐3‐This mode shall display high precision readings of energy for accuracy testing at site. Mode wise parameters to be displayed on the meter are as per respect to Active energy. 6. A.3. Apparent energy: Cumulative Absolute KVAH derived vectorally from lagging Reactive and Active energy. 6. A.4. Maximum Demand: Highest Active MD KW demand established after last Reset. 6. A.5 HIGH RESOLUTION MODE FOR KWH, KVAH, KVARH (LAG), KVAH Recording of active energy (Kwh) for billing purpose. The Meter should record and display max. Demand in KW (i.e. Fundamental plus Harmonics power) and Total KWH (i.e. Fundamental plus Harmonics energy). The Meter should record Average Max. KVA MD derived from Vectorial summation of Total KW (i.e. Fundamental plus Harmonics power) and Lag KVAR. Similarly it should measure and record cumulative KVAh energy also derived from vectorial summation of Total cumulative KWH (fundamental + harmonic energy) and cumulative KVARH energy (lag only). The high resolution display having of seven digit (two digits before decimal points & five digits after decimal points e.g. 21.64286) for KWH, KVAH & KVARH (lag), Kvarh (Lead) shall be provided under mode –3 for the accuracy checking of meter in the field. a) The meter shall have 3 modes for display: Mode‐1 – (Main Mode) This mode shall display billing and tamper parameters. Mode‐2‐This mode shall display observation parameters like TOD zone wise energies, MD, etc. Mode‐3‐This mode shall display high precision readings of energy for accuracy testing at site. Mode wise parameters to be displayed on the meter are as per annexure ‐A. b) Recording of active energy (KWH) for billing purpose shall indicate on the display for measurement of total annexure ‐A. Meter shall have high resolution display having of seven digit (two digits before decimal points & five digits after decimal points e.g. 21.64286) for KWH, KVAH & KVARH (lag), Kvarh (Lead) shall be provided under mode –3 for the accuracy checking of meter in the field. Parameters to be measured: The actual supply wave of related voltages and currents should be sampled out at the rate of minimum 3000 samples per second (a) Instantaneous Voltage (b) Instantaneous Line Current (c)Power Factor (d) Instantaneous Power in KW (e)Frequency (f)Active Energy: Cumulative Total (Fundamental + Harmonics) forwarded active energy. (Forwarded means |I1|+|I2|+|I3|) (g)Reactive Energy : Cumulative Kvarh (lagging) & Kvarh (Leading) energy with respect to Kwh export Energy (h) Apparent energy: Cumulative Absolute KVAH Energy derived vector summation from cumulative Total (Fundamental + Harmonics) forwarded active energy & Cumulative Kvarh (lagging) energy. (f)Average Max. Demand(MD) in KW for 15 minutes Integration period derived from Cumulative Total (Fundamental + Harmonics) forwarded active energy. (g) Average Max. Demand(MD) in KVA for 15 minutes Integration period derived from Cumulative Absolute (h)Apparent (KVAH )Energy Date and Time (i) Date & Time Parameters to be stored: Instantaneous Data: 1.Instantaneous Voltage (Phase to Neutral) all three Phase 2.Instantaneous Current all three Phase energy (fundamental + harmonics) i.e. it will display total energy i.e. (fundamental + harmonics) KWH 3.Instantaneous Power Factor all three Phase 4.Instantaneous Three Phase Power Factor 5.Instantaneous Power all three Phase 6.Instantaneous Three Phase Power 7.Current cumulative Energy 8.Real Date and Time Billing Data: 1.Current cumulative absolute Total Active Energy (KWH) Reading with date and time 2.Cumulative absolute Total Active Energy (KWH) Reading with date and time for last twelve resets 3.Current cumulative Reactive Energy (Kvarh lag) Reading with date and time for last twelve resets 4.Cumulative Reactive Energy (Kvarh Lag) Reading with date and time 5.Current cumulative Apparent Energy (Kvah) Reading with date and time 6.Current Maximum Demand in KW with date and time 7.Maximum Demand in KW with date and time for last twelve resets 8.Current Maximum Demand in KVA with date and time 9.Average Power factor Since Last reset with date and time 10.Average Power factor for last twelve reset with date and time TOD 1.Active Energy 2. Reactive Energy 3. Apparent Energy 4. KW MD For TOD Zone Peak, Night and Others. Load Survey Data:(For 45 days with 15 minutes integration period) 1.Date and Time 2.Average Voltage all three phase 3.Average Current all three phase 4.Average Power Factor all three phase 5.Energy (KWH):Current cumulative absolute Total Energy(KWH) Reading 6: Reactive Energy Kvarh (lag) Reading 2 II 10 84 7:Apparent Energy Kvarh Reading 8.Average Maximum Demand in KW 9. Average Maximum Demand in KVA Tamper Information: The meter should record 200 such events (100 occurrences + 100 Restoration) in FIFO/Roll Over basis. 1. Snap Shots: Numerical values of voltage, Current, Power Factor, Energy (kWh), Date and Time of logging of the occurrence and restoration of tamper events. Last Configuration Details: 1.RTC 2.TOU 3.MD Integration Period 4.Unauthorised programming attempt Self‐Diagnostics: 1.Real Time Clock (RTC) status 2.Non‐volatile Memory (NVM) status 3.Battery status Optical & RS 232 will be provided for local communication. Meter Communication: Meter should have optical port with The port for local communication and baud rate shall be baud rate of 9600‐115200 bps for local read and configuration, as per IS 15959. In addition to this the meter will have a according to IEC62056‐21. provision for an ‘integral modular plug in type’ OR ‘built in Meter should have RS232 (RJ45) port for remote type’ Communication Module for NAN (Neighborhood communication to fulfill AMI system requirements (this port should be physically accessible for authorized person only with Area Network) i.e. from Meter to Data Concentrator or directly for WAN (Wide Area Network). This adequate sealing provision). Communication Module could operate on Low Power Pin details for RS232(RJ45) is as under Radio / RF with Mesh/ PLC/GPRS (directly up to HES (High 1 ‐ +5V End Server)). The communication module option can be 2 ‐ CD decided at the time of actual implementation by the 3 ‐ DTR 4 ‐ GND utilities. Different communication technologies shall 5 ‐ RX follow relevant National or International Standard as 6 ‐ TX applicable. 7 ‐ CTS The meter shall be capable of executing instructions from 8 ‐ RTS In case meter is part of any mesh : base computer service center and MRI only after due authentication through protected two level pass word, for Meter should be able to support inbuilt communication the following: modems (RF/PLC). i) Change in integration period ii) Change in automatic re‐setting for billing data date & Communication protocol should be according to IEEE time. iii) Meter should have provision for eight time zones as per ICS, however presently it should be configured in three zones, i.e. peak, night and others as specified .So that in future it shall be modified as per the requirement up to eight zones and same should be recorded/displayed. The meter shall thereafter communicate above information while off‐loading the data to computer with either relevant billing quantities or relevant energy audit/load survey data. 3 II 14 87 Adequate number of licensed copies of the following software shall be made available and shall be installed on CMRI and BCS by the supplier. The exact quantity of each type of software to be so supplied shall be intimated to the supplier prior to/at the time of ordering. Further, the software shall be supplied free of cost by the meter manufacturer. 802.15.4G/6LoWPAN or any other standard protocol. Meter should be able to form mesh with self‐forming and self‐
healing capability. No pre‐installation programming or post installation programming shall be required for this purpose. Other wise Communication protocol should be according to DLMS/ IEC62056 or any other standard protocol Adding or exchanging the communication modem for AMI purpose should be done without turning off the meter. Existence or absence of communication modem should have no impact on meter measurements. Meter should be able to support different communication modems through RS 232(RJ45) port (such as: PLC, RF, GSM/GPRS...). Meter should be in such way that no needs to unplumbed the terminal cover to add the communication modem Any version upgrade or functionality change in meter firmware shall be done over the air through DCU/HES. Manufacturer needs to share its protocol data structure in English. Communication protocol for communication from Meter to DCU and from DCU to Server or Meter to Server should be shared to utility. Base computer software (BCS)shall be supplied having the following specifications stated as under: The BCS software shall be user friendly Windows based. It shall give all details for analysis. The software shall have the facility to convert all the consolidated information / data into required format so that it can be synchronized Head End in case of AMI failure. The above software shall be suitable for the operating system of the associated UGVCL’s computers: (I) Software for reading the meter contents in the MRI (ii) Base computer software for accepting data from MRI and down loading instructions from Base Computer to MRI. Windows based Base Computer Software (BCS) for receiving data from CMRI and downloading instructions from base computer software to CMRI. This BCS shall have, amongst other requirements and features and facilities described later in this specification, the facility to convert meter reading data into user definable ASCII file format so that it may be possible for the user to integrate the same with the user's billing program and process the selected data in desired manner. (iii) The meter should be capable to communicate directly to Lap Top computer. Any other special applications software and additional software not mentioned above but necessary for functioning of the system. 4 II 31 93 Meter manufacturer shall provide API with documentation for downloading the data from the meter. A provision should be given for validating downloaded meter data as well as to generate standard file format as per utility requirement. The BCS shall be executable on Window XP and higher versions/ Linux or any other standard operating system. All the information about energy, maximum demand and their respective billing register readings shall be shown in a manner which user can easily understand. The software shall be capable of preparing CMRI to read the meter information or time setting of the meter. The exhaustive help facility shall be available with the software so that user can use all the features of the software by just reading the help contents. The BCS should have adequate security provision for programming / change of selected parameters with at least two level passwords. Programmability: It should be possible to program the It should be possible to program the parameters limits / values from remote through sufficiently adequate security parameters limits / values from remote through sufficiently mechanism. Once programmed it will be possible for the adequate security mechanism. Once programmed it should be programmed parameters to come into effect from a possible for the programmed parameters to come into effect certain date & time. Meteorology under such condition from a certain date & time. Meteorology under such condition must remain intact and shall not be upgradable from must remain intact. remote. Reading frequency: The reading frequency will be 15 min for Reading frequency: The reading frequency proposed is once in 24 hours automatically. However it should be parameters mentions in RFP. On demand meter reading facility programmable up to 15 min. Alarms are to be shall also be available. communicated on their occurrences. On demand meter reading facility shall also be available. 5 II 39 112 New clause added 6 II 40 112 New clause added The MRI shall be supplied in the ratio of one for each 500 nos. of meters free of cost along with battery charger. The MRI shall have facility to store minimum 200 nos. of meter’s data. Further, there should be a facility in MRI to provide the transfer of meter data to computer through RS 232/ USB port. However both of the ports are preferable. The data downloading time (from meter to MRI) shall not exceed 5 min. for each meter After successful downloading, indication shall be available on MRI. The CMRI shall be small, light and ergonomic. The rechargeable battery capacity of the CMRI shall be minimum 12 hours of downloading time and minimum 72 hours of standby time between successive charges. The MRI shall be capable to download readings of other makes of meters with same software which is essential to show the inter‐operability. The MRI shall have possibility to read meters through RS232 (RJ45) & Optical Port. Manufacturer shall share the communication protocols to utility. It shall be responsibility of the meter manufacturer to provide the required software and all the facilities and support required by the purchaser, to use the CMRI for reading and retrieving the data from the meter and to download the data to Base Computer on free of cost basis till the expiry of guarantee period. The CMRI shall be capable to download all required data as mentioned under “Parameters to be Stored” after sending respective command from CMRI. The CMRI shall indicate the status of % of memory utilized and number of meters read. The CMRI shall possess a specific serial number, which cannot be changed / altered. Necessary upgrades shall be possible in CMRI software and shall be supplied for downloading simultaneously the existing parameters and any parameters added in future specifications of meters. A copy of operation manual and software CD shall be supplied along with each CMRI. Alarming Conditions: All alarm conditions not limited to 7 II 41 112 New clause added mentioned parameters should be communicated to HES within 1 minute. Alarm conditions should be configurable from HES (a)Battery drained (b)NVM Failed (c)Magnet Tamper occurred (d)Meter Cover opened (e)Unauthorized programming attempt (f)power on/off, (g)Under Voltage/ Over Voltage, (h)Over Current, (i)Mal functioning of relay, (j)malfunctioning of diagnostic events Time Synchronization: Meter time & date synchronization should be possible through central system 3. Amendment 2C Three Phase CT Meter Sr. No. 1 Volume Clause No. No II 10.A Page No 120 Present Clause Amended Clause COMMUNICATION PORT: Optical & RS 232 will be provided for local communication. The port for local communication and baud rate shall be as per IS 15959(once the single phase specification is defined). In addition to this the meter will have a provision for an ‘integral modular plug in type’ OR ‘built in type’ Communication Module for NAN (Neighborhood Area Network) i.e. from Meter to Data Concentrator or directly for WAN (Wide Area Network). This Communication Module could operate on Low Power Radio / RF with Mesh/ PLC/GPRS (directly up to HES). The communication module option can be decided at the time of actual implementation by the utilities. Different communication technologies shall follow relevant National or International Standard as applicable. The meter shall have galvanically isolated communication port so that it can be easily connected to a hand‐held meter reading instrument Meter Communication: Meter should have optical port with baud rate of 9600‐115200 bps for local read and configuration, according to IEC62056‐21. Meter should have RS232 (RJ45) port for remote communication to fulfill AMI system requirements (this port should be physically accessible for authorized person only with adequate sealing provision). Pin details for RS232(RJ45) is as under 1 ‐ +5V 2 ‐ CD 3 ‐ DTR 4 ‐ GND 5 ‐ RX 6 ‐ TX 7 ‐ CTS 8 ‐ RTS Communication protocol should be according to DLMS/ IEC62056 or any other standard protocol (MRI) for Lap Top PC for Data transfer or subsequently hooked to remote metering instrument such as modem etc. The meter shall be capable of executing instructions from base computer service center only after due authentication through protected two level pass word, for the following: i) Change in integration period ( As per ICS DLMS ). ii) Change in automatic re‐setting for billing data date & time (As per ICS DLMS). iii) TOD shall be programmed initially and time zones can be changed on later stage as per ICS DLMS. The meter shall thereafter communicate above information while off‐loading the data to computer through hand‐held meter reading instrument (MRI) with either relevant billing quantities or relevant energy audit/load survey data. 2 II 11 120 The following software shall be supplied by the meter manufacturer without extra cost. These software should be suitable for the operating system of the associated Board’s computers. 1) Software for reading and programming the meter contents in the MRI. 2) Base computer software should be window based software for accepting data from MRI and down loading instructions from Base computer to MRI. 3) Necessary window based software for loading application programs via communication port. 4) The meters should be capable to communicate directly to Laptop computer. 5) The meter shall have a facility for providing external upgradable Remote metering system Adding or exchanging the communication modem for AMI purpose should be done without turning off the meter. Existence or absence of communication modem should have no impact on meter measurements. Meter should be able to support different communication modems through RS 232(RJ45) port (such as: PLC, RF, GSM/GPRS...). Meter should be in such way that no needs to unplumbed the terminal cover to add the communication modem Any version upgrade or functionality change in meter firmware shall be done over the air through DCU/HES. Manufacturer needs to share its protocol data structure in English. Communication protocol for communication from Meter to DCU and from DCU to Server or Meter to Server should be shared to utility. Software: Base computer software (BCS)shall be supplied having the following specifications stated as under: The BCS software shall be user friendly. It shall give all details for analysis. The software shall have the facility to convert all the consolidated information / data into required format so that it can be synchronized Head End in case of AMI failure. Meter manufacturer shall provide API with documentation for downloading the data from the meter. A provision should be given for validating downloaded meter data as well as to generate standard file format as per utility requirement. The BCS shall be executable on Window XP and higher versions/ linux or any other standard operating system. through available. 6) Any other special application software of the manufacturer and additional software not mentioned as above necessary for functioning of the system. 7) The meters should have software lock for programming/ change of all parameters & the same should be protected with two level password”. Programmability: It should be possible to program the parameters limits / values from remote through sufficiently adequate security mechanism. Once programmed it will be possible for the programmed parameters to come into effect from a certain date & time. Meteorology under such condition must remain intact and shall not be upgradable from remote. Reading frequency: The reading frequency proposed is once in 24 hours automatically. However it should be programmable up to 15 min. Alarms are to be communicated on their occurrences. On demand meter reading facility shall also be available. RTC & time synchronization: Meter shall have RTC with 20 years calendar programmed in the memory and provision for time synchronization. All the information about energy, maximum demand and their respective billing register readings shall be shown in a manner which user can easily understand. The software shall be capable of preparing CMRI to read the meter information or time setting of the meter. The exhaustive help facility shall be available with the software so that user can use all the features of the software by just reading the help contents. The BCS should have adequate security provision for programming / change of selected parameters with at least two level passwords. Programmability: It should be possible to program the parameters limits / values from remote through sufficiently adequate security mechanism. Once programmed it should be possible for the programmed parameters to come into effect from a certain date & time. Meteorology under such condition must remain intact. Reading frequency: The reading frequency will be 15 min for parameters mentions in RFP. On demand meter reading facility shall also be available. RTC & time synchronization: Meter shall have RTC with 20 years calendar programmed in the memory and provision for time synchronization. Meter time & date synchronization should be possible through central system 3 II 13 123 This meter should be capable of recording active energy (KWH), KVARH, KVAH, MD KW, MDKVA, P.F., and Voltage & Currents. The maximum demand registered during the month should remain on display .The meter should Measure, Display and memorize the Total Energy (50 Hz pure sine wave + Harmonic energy). The actual supply wave of related voltage & currents should be sampled out at the rate of minimum 3000 samples per second and the meter shall provide integrated values of each actual voltage & current cycle while deriving actual basic active (cosine part measurable component) and reactive (sine part measurable component) energy (with respective to relevant voltage wave & current wave) to assess actual contents of energies persisting/traversing to have up‐to‐date information for total energy even when highest order harmonics is present in supply wave”. Recording of active energy (Kwh) for billing purpose. The Meter should record and display max. demand in KW (i.e. Fundamental plus Harmonics power ) and Cumulative Total KWH ( i.e. Fundamental plus Harmonics energy ) The Meter should record Average Max. KVA MD derived from Vectorial summation of Total KW (i.e. Fundamental plus Harmonics power) and Lag KVAR. Similarly it should measure and record cumulative KVAh energy also derived from vectorial summation of Total cumulative KWH (fundamental + harmonic energy) and cumulative KVARH energy (lag only). The high resolution display having of eight digit (two digits before decimal points & six digits after decimal points e.g. 21.642867) for KWH, KVAH & KVARH (leg) shall be provided under mode –3 for the accuracy checking of meter in the field. Parameters to be measured: The actual supply wave of related voltages and currents should be sampled out at the rate of minimum 3000 samples per second and should provide integrated values of each actual Voltage and current cycle and angle between them. (a) Instantaneous Voltage (b) Instantaneous Line Current (c)Power Factor (d) Instantaneous Power in KW (e)Frequency (f)Active Energy: Cumulative Total (Fundamental + Harmonics) forwarded active energy. (Forwarded means |I1|+|I2|+|I3|) (g)Reactive Energy : Cumulative Kvarh (lagging) & Kvarh (Leading) energy with respect to Kwh export Energy (h) Apparent energy: Cumulative Absolute KVAH Energy derived vector summation from cumulative Total (Fundamental + Harmonics) forwarded active energy & Cumulative Kvarh (lagging) energy. (f)Average Max. Demand (MD) in KW for 15 minutes Integration period derived from Cumulative Total (Fundamental + Harmonics) forwarded active energy. (g) Average Max. Demand(MD) in KVA for 15 minutes Integration period derived from Cumulative Absolute (h)Apparent (KVAH )Energy Date and Time (I) Date & Time Parameters to be stored: Instantaneous Data: 1.Instantaneous Voltage (Phase to Neutral) all three Phase 2.Instantaneous Current all three Phase 3.Instantaneous Power Factor all three Phase 4.Instantaneous Three Phase Power Factor 5.Instantaneous Power all three Phase 6.Instantaneous Three Phase Power 7.Current cumulative Energy 8.Real Date and Time Billing Data: 1.Current cumulative absolute Total Active Energy (KWH) Reading with date and time 2.Cumulative absolute Total Active Energy (KWH) Reading with date and time for last twelve resets 3.Current cumulative Reactive Energy (Kvarh lag) Reading with date and time for last twelve resets 4.Cumulative Reactive Energy (Kvarh Lag) Reading with date and time 5.Current cumulative Apparent Energy (Kvah) Reading with date and time 6.Current Maximum Demand in KW with date and time 7.Maximum Demand in KW with date and time for last twelve resets 8.Current Maximum Demand in KVA with date and time 9.Average Power factor Since Last reset with date and time 10.Average Power factor for last twelve reset with date and time TOD 1.Active Energy 2. Reactive Energy 3. Apparent Energy 4. KW MD For TOD Zone Peak, Night and Others. Load Survey Data:(For 45 days with 15 minutes integration period) 1.Date and Time 2.Average Voltage all three phase 3.Average Current all three phase 4.Average Power Factor all three phase 5.Energy (KWH):Current cumulative absolute Total Energy(KWH) Reading 6: Reactive Energy Kvarh (lag) Reading 7:Apparent Energy Kvarh Reading 8.Average Maximum Demand in KW 9. Average Maximum Demand in KVA Tamper Information: The meter should record 200 such events (100 occurrences + 100 Restoration) in FIFO/Roll Over basis. 1. Snap Shots: Numerical values of voltage, Current, Power Factor, Energy (kWh), Date and Time of logging of the occurrence and restoration of tamper events. 4 II 13.4 124 Last Configuration Details: 1.RTC 2.TOU 3.MD Integration Period 4.Unauthorised programming attempt Self‐Diagnostics: 1.Real Time Clock (RTC) status 2.Non‐volatile Memory (NVM) status 3.Battery status The meter should be capable of storing load survey data in its a) Fix parameters‐ Name Plate details as per IS nonvolatile memory at specified 15 minutes time integration 14697 (1999) and ICS DLMS ETD 13 (6211) period. for category C. b)Load survey ‐The meter should be capable of 1.Date and Time storing in its nonvolatile memory at specified 15 2.Average Voltage all three phase minutes time integration period 3.Average Current all three phase (i) KW 4.Average Power Factor all three phase (ii) KVA (derived from Active energy and only 5.Energy (KWH):Current cumulative absolute Total Energy(KWH) Reading lagging Reactive energy 6: Reactive Energy Kvarh (lag) Reading (iii) KVAR ( Lag ) 7:Apparent Energy Kvarh Reading Meter should be able to memorize the above parameters for a period of minimum days. The load 8.Average Maximum Demand in KW survey with 15 minutes time integration period with 9. Average Maximum Demand in KVA 5 parameters like: RTC, Forward kWh, Forward KVARh‐Lag, Forward kVARh‐lead and Forward KVAh The meter shall be capable of measure, monitor and store should be provided. This data should be stored in electrical quantities i.e. Active Energy, Reactive Energy(lag), the memory, in First In First Out (FIFO) manner. Apparent Energy , KW MD in the memory in minimum 8 c) Billing Parameters‐ the meter should also zones of time of day (TOD) for pre‐specified periods of the day. memorize the following values on cumulative (since Presently it shall be clubbed & configured in three Zone i.e. installation) basis for billing purpose for last and Peak, Night & other as under : present billing period. 1: Peak Hours: 6.oo to 11.oo & 18 .00 to 22.00 2: Night Hours : 22.00 to 6.00 ( next day morning) TOD‐Zone wise Cumulative Active energy KWH 3: Other : 11.00 to 8.00 It shall be programmable to modify as per requirement up to (i) for 24 Hours, eight zone. (ii) for Night Hours and The meter shall have 3 modes for display: (iii) for Day Hours (iv) for Peak Hours Mode‐1 – (Main Mode) This mode shall display billing and tamper parameters. Cumulative Reactive energy KVARH (Lag) Mode‐2‐This mode shall display observation parameters like TOD‐zone wise cumulative Apparent energy KVAH TOD zone wise energies, MD, etc. 5 II 16 126 (i.e. derived from Active energy and only lagging Reactive energy) (i) for 24 Hours, (ii) for Night Hours and (iii) for Day Hour d) Tamper & fraud records :‐ Must be kept recorded permanently without facility of resetting. The meter should record following tamper conditions with date, time & duration in FIFO/Roll over type method. i) Missing Voltage‐ Phase wise ii) Missing current ‐Phase wise iii) Voltage unbalance‐ iv) Current unbalance v) Current reversal‐ Phase wise vi) Over voltage vii) Low voltage viii) Neutral Disturbance ix) Magnetic Influence Note :‐ The meter should record minimum 200 tempers as per ICS events (occurrence and restoration) the temper persistence time for occurrence shall be 15 minutes and restoration should be 1 to 2 minutes. Recording should be with occurrence date & time & restoration date & time & snap shot. The tamper of Magnetic Interference shall be communicated back to HES as and when they occur. These tamper events shall be sent as an alarm to the HES which shall store the same in its database. e)Reset record :‐ Meter should keep permanent record of date & time of last at least 12 MD Resets & total no. of resets. Common MRI shall be supplied as per specification, i.e. Annexure‐C attached herewith with minimum 4 MB static ram Mode‐3‐This mode shall display high precision readings of energy for accuracy testing at site. Mode wise parameters to be displayed on the meter are as per annexure ‐A. Meter shall have high resolution display having of seven digit (two digits before decimal points & five digits after decimal points e.g. 21.64286) for KWH, KVAH & KVARH (lag), Kvarh (Lead) shall be provided under mode –3 for the accuracy checking of meter in the field. The MRI shall be supplied in the ratio of one for each 500 nos. of meters free of cost along with battery charger. The MRI shall have facility to store minimum 200 nos. of 6 II 24 130 The qualified supplier shall have to supply one no. of meter’s data. Further, there should be a facility in MRI to MRI free along with each lot of 500 nos. of meters provide the transfer of meter data to computer through RS 232/ USB port. However both of the ports are preferable. The data downloading time (from meter to MRI) shall not exceed 5 min. for each meter After successful downloading, indication shall be available on MRI. The CMRI shall be small, light and ergonomic. The rechargeable battery capacity of the CMRI shall be minimum 12 hours of downloading time and minimum 72 hours of standby time between successive charges. The MRI shall be capable to download readings of other makes of meters with same software which is essential to show the inter‐operability. The MRI shall have possibility to read meters through RS232 (RJ45) & Optical Port. Manufacturer shall share the communication protocols to utility. It shall be responsibility of the meter manufacturer to provide the required software and all the facilities and support required by the purchaser, to use the CMRI for reading and retrieving the data from the meter and to download the data to Base Computer on free of cost basis till the expiry of guarantee period. The CMRI shall be capable to download all required data as mentioned under “Parameters to be Stored” after sending respective command from CMRI. The CMRI shall indicate the status of % of memory utilized and number of meters read. The CMRI shall possess a specific serial number, which cannot be changed / altered. Necessary upgrades shall be possible in CMRI software and shall be supplied for downloading simultaneously the existing parameters and any parameters added in future specifications of meters. A copy of operation manual and software CD shall be supplied along with each CMRI. NOTE: The meters should comply with DLMS / IEC 62056 or any NOTE: The meters must be compliant to ICS DLMS other standard protocol for category B or C. ETD 13(6211) for category C. “The suppliers shall have to submit necessary documents and “The suppliers shall have to submit necessary 7 II 25 130 documents and certification in this regard along with their technical offer. The samples to be submitted along with the tender should also be conforming and compliant to the above protocol. The offers, not complying to above, shall be rejected without any further correspondence. In case of foreign bidders, the type test certificates, in respect of the tests conducted as per relevant international standard, i.e. IEC‐62053 shall be acceptable. The suppliers shall have to submit the valid License in accordance with IEC‐62053 issued by the respective country.” BIS MARK‐ The meter manufacturer having valid BIS license for tendered items shall only be considered. Meters offered must have ISI marking. The sample passed in electrical testing should be consider for further evolution New clause added 8 II 26 130 New clause added certification in this regard along with their technical offer. The samples to be submitted along with the tender should also be conforming and compliant to the above protocol. The offers, not complying to above, shall be rejected without any further correspondence. In case of foreign bidders, the type test certificates, in respect of the tests conducted as per relevant international standard, i.e. IEC‐62053 or any other standard shall be acceptable. The suppliers shall have to submit the valid License in accordance with IEC‐62053 issued by the respective country.” BIS MARK‐ The meter manufacturer having valid BIS license for tendered items shall only be considered for Indian bidders. Meters offered must have ISI marking for Indian manufacturer. The sample passed in electrical testing should be considered for further evolution. Alarm Conditions: All alarm conditions not limited to mentioned parameters should be communicated to HES within 1 minute. Alarm conditions should be configurable from HES (a)Battery drained (b)NVM Failed (c)Magnet Tamper occurred (d)Meter Cover opened (e)Unauthorized programming attempt (f)power on/off, (g)Under Voltage/ Over Voltage, (h)Over Current, (i)Mal functioning of relay, (j)malfunctioning of diagnostic events Power Quality: Power Quality information should be stored in meter and should communicate to HES as per AMI requirement. Following parameters are required. (1)Power on/off (2)Over Voltage (3) Under Voltage 4. Amendment 2D for Box CT Coil Sr. No. Clause No Page No Present Clause Amended Clause 1 Volume No. II Note 142 Note: Above specifications are for single phase meters. Bidders are requested to provide similar types of poly carbonate boxes for three phase whole current meters & three phase CT operated meters. 2 II 3.6 Current Transformer specifications 3 II 3.6A 143 to 145 ‐‐‐ Note: Above specifications are for single phase meters. Bidders are requested to provide similar types of poly carbonate boxes for three phase whole current meters & three phase CT operated meters for consumer meters (CT coils inside the box ) as well as DT meters(CT coils outside the box i.e. at the transformer bushing with the provision of double compressed gland with 2.5 mm sqr. Copper , 10 core multi standard armoured control cable ) Replaced word “100/5A” with “100/5A And 200/5A “at all required places. New specification for Resin cast CT for DT meter is as per attached Annexure 3.6A. Earlier CT Coil Specification mention in 3.6 for Consumer and DT Meter is now limited to Consumer Meter Only. For DT Meter 3.6 A Newly added. New Clause added 5. Amendment 2E Annexure 3.6A Specification Resin Cast Ring Type CT ANNEXURE‐3.6A TECHNICAL SPECIFICATIONS FOR LT RESIN CAST RING TYPE CURRENT TRANSFORMER FOR OUT DOOR APPLICATION FOR (DT METERS) HAVING RATING OF 200/5A & 400/5A. 1. GENERAL:‐ 1 SCOPE 2 APPLICAABLE STANDARD This specification cover design, manufacture, supply and testing of outdoor type, 200/5A and 400/5A ratio Resin cast LT Ring type Current Transformers. IS 2705, 1992 (Part I & II) And Latest version thereof) 3 CURRENT RATIO A 200/5 Amp. B 400/5 Amp. 4 BURDEN 5 VA 5 ACCURACY CLASS Class 0.5 6 SYSTEM VOLTAGE /HIGHEST SYSTEM VOLTAGE INSTRUMENT SECURITY FACTOR 433 V AC, 50 Hz /660 V AC, 50 Hz. RATED CONTINUOUS THERMAL FACTOR a. RATED SHORT TIME THERMAL CURRENT b. RATED DYNAMIC PEAK CURRENT 120 % of rated current. 7 8 9 10 11 HIGH VOLTAGE POWER FREQUENCY TEST TEMPERATURE RISE TEST Less than 5 5 KA r.m.s. for 1 Second 2.5 Times the rated Short Time Thermal Current ( i.e. 12.5 ka Peak ) 3 kV for 1 Minute. 70 Deg. C Maximum 12 Ratio (current) error maximum. Will not exceed the values prescribed in IS: 2705/1992. 13 Phase angle error maximum. Will not exceed the values prescribed in IS: 2705/1992. 12 INSULATION CLASS Class‐ F 13 NUMBER OF TURNS Primary – Single Secondary – For 200/5 A Ratio 40 Turns. For 400/5 A Ratio 80 Turns 2. CONSTRUCTION FEATURES:‐ 2.a. Construction: Core material: Low loss, CRGO M4 or better grade Thickness of stampings: Less than or equal to 0.27 mm. 2.b. Copper Wire: 1. Material :Enameled EC grade copper wire as per IS 4800 Part IX /IEC 317 2. Insulation: Coil shall be insulated with electrical grade polyester tape. 3. Outer insulation shall be with vacuum mix homogeneous resin casting 4. Minimum 2 mm thickness of resin above the coil of the CT shall be provided. 2.c.
Secondary Terminal: The secondary terminal shall brought out directly from CT through a three core 2.5 sq. mm High Resistance Fire Retardant PVC insulated flexible multi strand copper cable. (Two nos. suitable size brass bolts and nuts with two nos of plain washers in each bolts shall be fixed on the CT for termination of secondary terminals). i.e. Suitable size of terminal connectors shall be fixed on the CT for secondary termination. CT capacity in Amps. Inner diameter in mm Outer diameter in mm 200/5 65 100 400/5 65 100 2.d.
Current transformer should have an opening in the center to accommodate a primary conductor that may be cable (with the lugs) / bus‐bar / LT bushing rod of Distribution transformer. 2.e.
Current transformers should be of Resin cast type, suitable for outdoor installation, insulation, type of resin will be “Cycloaliphatic Resin” class of insulation will be “F” as specified in IS: 2705. 2.f.
The polarity marking on the offered CT primary & secondary side would be embossed. 2.g.
Offered LT CTs should be of Brick red color. 2.h.
NAME PLATE: Metal plate (Aluminum / Brass) with following details embosses or printed on it: Ratio, burden, system voltage & frequency. 1.
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Accuracy Class. B.I.L. & Insulation Class. Batch No. & Sr. No. of CT. Manufactures Name & manufacturing year. Words “ PROPERTY OF UGVCL “ A/T Number. 3. TESTS:‐ 3.a. Current Transformer will comply with and will be subjected to all routine tests prescribed in relevant IS: 2705/1992. 3.b. Routine tests as per relevant standard along with accuracy test as per clause 7.2 of IS: 2705 (Part‐II) 3.c. Copy of the Type Test Certificate of the tendered CTs Confirming to IS: 2705/1992 ( Latest Amendments ) and to the latest revision thereof , obtained any one of the standard laboratories such as NPL/CPRI(NABL accredited )and conducted not earlier than 3 years and valid on the date of tender opening shall be submitted along with the tender. 4. MOUNTING OF CTS:‐ CTs shall be supplied and mounted directly on Transformer LT studs by the supplier however any modification of fixing arrangement shall be made as per the field constraints. 5. TESTING FACILITIES:‐ A. The firm should have following Testing facilities. 
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Automatic test set up (Class 0.1) for ration Error & Phase Angle Error Measurement with facility of Printer interface. Standard CT of Class 0.2 or higher accuracy. Burden Box having Full & Quarter Burden at 0.8 P.F. High Voltage Tester. Test Facility for over Voltage Inter Turn testing. All the test equipments and standard CT must be calibrated at the third party government approved laboratory. At the stage of tender offer and along with call. Copy of the Calibration certificates must be submitted. B. List of Plant & Machinery and Test Equipments with relevant details like make, capacity, accuracy, model must be submitted along with tender offer. 6. QUALITY ASSURANCE PLAN:‐ Party must submit Quality Assurance Plan for the checks carried out at various stage from Raw Materials to finish goods. Documents for the checks carried out may be verified by inspector at the time of inspection. 7. GUARANTEE:‐ The party should guarantee for free replacement / rectification for the CT under the guarantee period of 12 months from the date of installation or 18 months from the date of supply. 8. PACKING. A set of 3 CTs shall be packet in a box / carton marking serial number on each box. 9. TENDER SAMPLE The bidder has to submit Two sets of CT of each rating (total 12 Nos.) as per specification along with offer at Dy.Engr. : RSO: UGVCL: Visnagar Road, Mehsana. The offer without submission of tender sample shall be out rightly rejected. The tender sample may be tested for acceptance tests as per IS 2705/92 & latest amendments if any at ERDA, if required the sample shall be further tested for type tests as per 2705/92 & UGVCL specifications. In case of failure of sample in any of the test carried out at ERDA, the offer of bidder shall be considered as disqualified.