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One-phase static meters ZE 110 display, consumption and supply, 4 tariffs ZE 110 series meters are sophisticated, electronic, fully programmable units used for monitoring and control of power demand. They can meet all requirements associated with power market liberalization as well as those for remote data transmission and for combined readout of different kinds of energy. Owing to their both SW and HW design, they can be modified or new functions can be used that are required by customers. This concept is unique for all makes (M and D) and all advantages of the meter can be thus utilized – including memory registers and different kinds of communications. Measuring system ZE 110 meters are one-phase static one- to four-tariff units of active energy Class 1 and 2 according to ČSN EN Standard No. 62052-11, 62053-21 used for direct connection. The basis of the engineering solution is a microprocessor, which has all main functions. It measures signals from current and voltage sensors, makes calculations, operates display or dials, takes tariff inputs, communicates through the optointerface, generates both IR and SO pulses and stores selected values and data into the memory and accommodates characteristics of the meter to customer´s requirements and needs. The measurement is made using the measuring system in which it is possible to measure, in the measuring range of the meter, even when continuous and harmonic components (both voltage and current) are present in the circuit measured. Negative effects of direct-current components are eliminated in each measuring period. Measuring system calibration is performed using software, the meter contains no mechanical adjusters. This system ensures the stated accuracy of the meter with great reserve. The meter measures and stores the following basic values and (if necessary) displays them: ●● Both demand and supply for each of four tariffs (i. e. 8 power registers). ●● Time of scanning in each register (i. e. 8 time registers) for all demand and supply registers. ●● Cumulative registers for total period of consumption and total period of supply. ●● Maximum current and maximum output. ●● Working time, number of mains outages, time after resetting maxima of current and output. ZE 110 measures (and displays, if necessary) the following secondary values: ●● ●● ●● ●● Technical specification No. A – 7 • 17 • 08, March 2009 Instantaneous rms (root-mean-square) voltage. Instantaneous rms current. Instantaneous output. cos φ. The range of current measurement The option of the display for one- or two-tariff electricity meters ZE 110 units measure in the range from build-up current up to 80 A with a sufficient reserve as given in the standard (both direct-current and harmonic components). The meter measures with the stated accuracy in the range of 80 A to 100 A, if the direct-current component does not exceed 57 A. Display of numerical data Symbol of units Inputs ZE 110 meters are furnished up to two external inputs for tariff switching. Tariff switching is performed using AC voltage coming to appropriate terminal of the unit. One pole of inputs can be alternatively substituted with inner connection with L1 (or from different phase) or A – see terminal board connection. ZE 110.DH and ZE 110.DU units are also quipped with external inputs for tariff switching, but they are not used if the tariff is controlled via galvanically separated switches from the inserted module. Active tariff indication can be seen in LCD display or on LED diode of the dial in case of a mechanical dial. ZE 110.meters can be optionally furnished, besides MRC module, with a module with two-way communication and so the unit can be connected into the remote readout system (e. g. LONEL module), and used, e. g., for measurements of consumption of heat, water or gas in households. Outputs and communication The meter is equipped with LED testing output, constant for conversion of drawn energy to the number of sent out pulses is programmable. The unit can be furnished with interface S0 ČSN EN Standards No. 62053-31 / DIN 43864. The circuit is galvanically separated using an opto-coupler to the output of which a transistor with open collector is connected and it sends out pulses with frequency corresponding to consumed power. Both the number of pulses and their length are programmable. All types of meters of this series including those with mechanical dial can be optionally furnished with opto-interface according to ČSN EN Standard No. 61 107, var. DLMS. ZE 110.DH are equipped with two output switching contacts of memory relays whose position can be monitored visually through the transparent cover. The position of those relays can be controlled via electronics of the module, which is always separated galvanically from electronics of the meter. Appliances can be controlled using these relays. Another group of optional modules enables two-way communication via up-to-date communication protocols: RS 232, RS 485, LONWORKS (LONEL) system, M-BUS, and the like, and via number of transmission channels from the metallic circuit via low and high voltage network, opto-couples, radio, fixed-line modems, up to GSM, and the like, is also available.. Measuring outputs from different energy sensors can be connected to the meter, too, and cumulative data on power consumption in, e. g. from the households, can be transferred to the suppliers´ customer systems. Display of measured values In ZE 110.DO, 110.DH, and 110.DU meters, LCD displays are used. Such units can be supplied as one-, double-, three or four-tariff units. Their displays can indicate, beside the measured value or consumption (or even supply) of active power for T1 to T4 tariffs, even other data such as effective values of current or voltage, instantaneous output, maximum current, maximum output, cos φ, number of voltage outages and working time. The active tariff (in which the meter reads consumption and/or supply) is shown as an appropriate T1 to T4 and is not underlined. The underline indicates the tariff for which currently shown data are valid (e. g. consumption measured in this tariff). Technical specification No. A – 7 • 17 • 08, March 2009 Displayed tariff Indication of magnetic field Symbol of phases Bar chart Active tariff It is possible to choose, using the meter configuration, those values that will be gradually shown in the display as well as the rate of their exchange (rotation). The values measured are stored to registers and they can be read after IR interface (the mechanical one can be used in LCD models). LCD display meters can indicate even the results of the following operations with registers for each tariff (selectable number of decimal places): consumption, supply, consumption + supply, consumption supply (sum of absolute values of consumption and supplies can be shown as well as absolute values of sums or remainders of demands or supplies, and the like). Models equipped with mechanical counters can show in their dials either consumption only (models M1, M2) or consumption and supply (model MK). A suitable filter for peak values can be set via the meter configuration if storage of maximum values is required. For better information, a rough value of instantaneous output is always indicated in the meter either in LCD display using a bar chart (if current is lower than starting value, the bar chart is not shown) or, in mechanical models, using different repeating of LED diode blinking. If currents goes in a reverse direction (it is scanned into supply registers) the bar chart is blinking, in mechanical variety LED diode is not blinking. Opto-interface A direct local readout is possible owing to the opto-interface specified in ČSN EN Standard No. 61 107. It is realized using the optical head applied to the defined place on the meter housing. Its electric input/output is RS 232 interface for connection to a PC port or to a connector of a portable terminal. If required, even units with electromechanical counters can be equipped with optical interfaces. Indication components LEDs in red of infra-red region (as it is required by the customer) can be used for calibration. The diode sends light pulses with frequency corresponding to power measured according to the unit constant, which is programmable, typical value is 10,000 imp./kWh. Design Electrometers ZE 110 series are produced in two different constructional modifications – they have different width of cover. Standard width is 125 mm which allows installation of all modifications including design with mechanical counters and installation of all modules (below called Design A). Short modification 110 mm has only limited possibilities for installation of modules (in view of limited space) and it exists only in version with display (below called Design B). The design is conventional and time-tested and should be resistant against hard working conditions, enable easy operation and be resistant enough against unauthorized demand. Owing to the design, the installation is easy and it is carrying out using three screws on socalled triangle – see dimensioned sketches. Display in models ZE 110.DO, ZE 110.DH and ZE 110.DU is situated in the upper half of the unit, symmetrically in the vertical axis. Display in model ZE 110.DB is situated in right upper half of the unit. ZE 110.DH contains MRC module which is galvanically (except for mains supply) separated from the electronics of the meter itself. Description of this module can be found in a separate technical specification. Inserted MRC modules can be programmed by the manufacturer if it has been agreed. Technical data Basic information Accuracy class Meter constant (testing LED output) Connection Nominal voltage Un Range of working voltage Self-consumption (feed circuits including power supply) - without any module Self-consumption of electric circuit Nominal frequency Service frequency Basic current Ib Maximum current Imax permanently Build-up current Maximum range of the measurement class 1 or 2 to as given in ČSN EN Standard No 61036 programmable, usually 10,000 imp/ 1 kWh direct two-conductor 230 V 0,75 Un up to 1,15 Un max. 0,7 W, max 8 VA cap. max. 0,01 VA 50 Hz 45 to 55 Hz as required 5 A as required possible in whole multiple Ib from 40 A to 80 A lower than 15 mA (0.3 % Ib) 15 mA to 100 A Tariff switching – outside terminals 230 V Switching voltage Ut Permissible range 0,75 Ut to 1,15 Ut Maximum consumption at Ut = 230 V 1,5 mA Tariff switching – ZE 110.DH MRC - selectable assignment of the tariffs to galvanically separated switches (≡ function identical as with relays K1 and K4). Outputs Testing LED output Pulse output S0 ●● S0 output connection ●● Number of pulses on S0 ●● Width of pulses on S0 in ms ●● Supply voltage – nominal ●● Supply voltage – maximum ●● Current ●● Maximum line length programmable, usually 10,000 imp./ 1 kWh Class A according ČSN EN Standard No. 62053-31 direct, two-conductor, open collector type output programmable from 0.15 do 10,000 imp./1 kWh programmable, typical value 40 ms DC 24 V DC 30 V DC 5 to 15 mA 1000 m For ZE 110.DH only number of output relays switching ability 1 relay permanently maximum total current for 2 relays electrical life of the output relays (maximum load) mechanical life of the output relays 2 IC permanently 8 A, cos φ = 1 Itot 16 A, cos φ = 1 min. 2 x 105 cycles O/C min. 1 x 1066cycles O/C Resistance against voltage pulses Pulse voltage Pulse shape 8 kV 1,2 μs / 50 μs Electromagnetic compatibility Electromagnetic discharges ●● test voltage ●● number of discharges High frequency electromagnetic field ●● demand factor 3, both vertical and horizontal polarization Fast transient effects (groups of pulses) ●● duration of the group of pulses ●● period of the group of pulses ●● duration of the test ●● test voltage Radio interference suppression ●● peak course of noise voltage in the band ●● peak course of electromagnetic field intensity in the band ●● Resistance against interference in lines Weight, dimensions and cover Weight – without module Width Height: ●● with the lug pushed down ●● including the pushed out lug Depth Clamping as given in the dimensioned sketch (width x height) ●● dimensions of the housing ●● working position as given in ČSN EN Standard No. 61000-4-2 8 kV 10 as given in ČSN EN Standard No. 61000-4-3 as given in ČSN EN Standard No. 61000-4-4 15 ms 300 ms 60 s 4 kV as given in ČSN EN Standard No. 55022 0,15 to 30 MHz 30 to 1,000 MHz as given in ČSN EN Standard No. 61000-4-6 0.15 – 80 MHz cca 0,6 or 0,7 kg 105 (129) or 125 mm 169 or 204 mm 216 or 225 mm 61 or 70 mm 105 x 155 or 175 mm correspond to DIN Standard 43857 vertical Technical specification No. A – 7 • 17 • 08, March 2009 Current carrying conductor connection Terminal diameter Maximum conductor cross section: ●● cable ●● strand Minimum conductor cross section: Fastening bolts ●● average of bolt-head ●● cross slot ●● slot ●● tightening torque 25 mm2 16 mm2 4 mm2 M5 x 10 or M6 x 14 6,5 mm Z type, size 2 as given in ISO Standard No. 4757 min. 1,06; max 1,2 mm 2,8 or 3 to 5 Nm The other connections Terminal diameter Fastening bolts Maximum tightening torque 3,2 mm M3 x 5 or M3 x 7 1 Nm Auxiliary terminals Terminal cross-section Fastening bolts Maximum tightening torque 2.6 x 4 mm M3 x 6 1 Nm 7,2 or 6,8 mm The other technical parameters meet ČSN EN Standard No. 61036 (published in December1997 and A1 modification of 2001). Optical communication Optionally, the meters contain optical infrared communication interface as given in ČSN EN Standard No. 62056 and 61107. All communication activities must always meet IEC Standard No. 1015, mod. C with switching communication rate. Three modes given in the above standard are used in the meter: ●● Program mode in which configuration of the unit takes place ●● Manufacturer´s specification mode containing service orders ●● Readout How to start communication The beginning of communication can be either direct (with address) or indirect. The address can have up to eight characters (it may also include ASCII characters) and it is stored in the meter memory and can be set or changed using configuration of the unit. If the address in the meter is blank, the unit responses to all addresses. So-called “fast identification” can be set via the configuration when responses are reduced from 200 ms down to 20 ms (they can be freely set including the response following the switch of communication rate) when the communication direction is switched. The link up rate can be configured, but typically it is set to 300 Bs as it is given in the standard. After linking up, the communication rate can be switched in the range of 300 to 9600 Bd (higher rates must be supported by the optical head used). Technical specification No. A – 7 • 17 • 08, March 2009 Program mode The meter is configured in this mode as well as parameterization is performed during production (it is protected using interconnection at the customer).The access to the program mode is closely protected by strict SW guard – “access level 3” as given in the standard. If you want to enter the mode you must know the password (stored in configuration of the unit) and cryptographic algorithm. A random number generated by the unit is used at the entrance of the algorithm so that it could not be found on the basis of the communication. With default setting (unless the customer wants otherwise) HW locks changes of all configuration parameters and resetting (modification of the content) of selected registers. Manufacturer´s specification mode Two commands protected with their separate passwords are implemented in this mode. It is the command to delete maxima and that used for transfer to the calibration mode. Readout The readout always includes all registers with maximum accuracy which can be achieved. Names of the registers (e. g. 1.8.1) are selectable and any register can be eliminated from the readout. The readout unit or superior computer are fully responsible for further possible operations with the registers or a change of their order in the print-out. Configuration can be set in such a way that maximum registers are deleted after the readout is successfully finished. If it is forbidden, maximum values can be deleted via an order in the mode of “manufacturer´s specification”. Wiring diagram of the terminal board – connection of tariff switching double-tariff – tariff extraction on N four-tariff – tariff extraction on L (in the similar way to N) double tariff – free tariffs extraction four-tariff – tariffs extraction on terminal 15 Terminal board of the meter Table 1 – two-tariff switching E1 is a signal for tariff switching Table 1 – four-tariff switching E1 and E2 are signals for tariff switching European - E Czech - C Tariff E1 E1 European - E 1 0 1 1 0 0 1 0 2 1 0 2 0 1 0 0 Control with terminal 13 13 3 1 0 1 1 Control with ADD module K4 K1 4 1 1 0 1 Control with terminal 13 15/33 13 15/33 Control with ADD module K4 K1 K1 K4 Tariff E1 Czech - C E2 E1 E2 1 means “active” input, i.e. that there is voltage between tariff inputs (e.g. in case of the inner interconnection to L1, it is in case of the connection of the tariff input to N), 0 means “inactive” input Technical specification No. A – 7 • 17 • 08, March 2009 Dimensioned sketch Technical specification No. A – 7 • 17 • 08, March 2009 HOW TO DISPOSE OF FUNCTIONLESS PRODUCTS AND PACKAGING MATERIAL: Type identification ZE 110. # #. # # # # # # - # # with display, 1 to 4 tariffs D0 with display and MRC module, 1 to 4 tariffs with display, for additional fitting of an optional module (*), 1 to 4 tariffs DH DU without optical communicatio 0 with optical communication 1 without tariff control 0 inner tariff connection to L1 1 internal tariff connection is led to terminal 15 internal tariff connection to N internal tariffs connection, general-purpose Products after finishing their life must be handed over to specialized companies who perform separation of the used materials and/or their recycling and useless products should be disposed of as stipulated in the Waste Act. The product does not contain any radioactive, carcinogenic or any other harmful materials. All plastics used can be recycled. Packaging materials: special packaging boxes can be recycled, the boxes used should be given to companies which can use them as secondary raw materials or energies. THE MANUFACTURER´ S NOTICE 4 5 6 without tariff switching X tariff switching – Czech logic C tariff switching – European logic tariff switching – Customer logic E Z SW versions (customer version) 00 - 99 one-tariff 1 double-tariff three-tariff 2 3 four-tariff one-tariff without S0 double-tariff without S0 three-tariff without S0 four-tariff without S0 HW versions (customer version) 4 5 6 7 8 00 - 99 (*) – that module type must be specified by agreement with the manufacturer The meters designs produced commonly are blackfaced. Other types can be ordered only after previous deal with the manufacturer. An integral part of type identification of the meters is the direction of the power measured ODB demand ODB/DOD demand and supply This will be specified in the customer sheet, which is a part of the contract. The product can be used safely. The manufacturer issued the Statement of Conformity as specified in § 13 of Law No. 22/97. In spite of this, however, the manufacturer draws attention to possible risks resulting from incorrect operation or use of the product: ●● Installation and maintenance must be carried out only by trained persons with electrotechnical qualifications who will tell the customer all the conditions of safety at work. ●● The product must not be used for purposes different than those it was manufactured for. ●● The product must not be wilfully modified to be different than it is specified in the type specification. ●● The product must not work with different voltage, current and frequency than it was manufactured for or must not be professionally modified. ●● The product must be placed and secured in such a way that no unauthorized persons without electrotechnical qualifications, especially children, could handle it. ●● Each time the product is again put into operation, e. g. after a repair, maintenance, complete protection must be secured as well as all necessary safety measures must be taken and the checkup must be made by authorized staff. ●● It is necessary - during operation of the product - to prevent risks of fire or explosion in case of generated gases, inflammable liquid vapours or gun-powder occurrence. ●● If an authorized person handle the product, there must be no voltage present in the unit; it does not apply to measuring using insulated tips. ●● The product must not work in such conditions and environment that do not secure safety operation (e. g. installation on the inflammable base, the cover made of an inflammable material, imperfect protection against penetration of foreign bodies and/or water or other liquids). ●● The product must not work in the rooms where vibrations and shocks are greater than it is given in the technical specification. ●● If the user does not respect any of the above warnings and if any defect occurs because of such neglect, the manufacturer is not responsible for such a defect. ZPA Smart Energy a.s., Komenského 821, 541 01 Trutnov, Czech Republic Tel.: +420 499 907 111, fax: +420 499 907 497 E-mail: [email protected], http.: //www.zpa.cz Technical specification No. A – 7 • 17 • 08, March 2009