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1
INVITATION FOR QUOTATION
SHANTILAL SHSH ENGINEERING COLLEGE, BHAVNAGAR
TEQIP-II/2016/GJ1G05/Shopping/413
03-March-2016
To,
Sub: Invitation for Quotations for supply of Goods
Dear Sir,
1. You are invited to submit your most competitive quotation for the following goods with
item wise detailed specifications given at Annexure I,
Sr.
No
Brief Description
Quantity Delivery
Period(In
days)
Place of Delivery
Installation
Requirement (if
any)
1
AC SYNCHRO
TRANSMITTER
RECEIVER
01
60
SHANTILAL SHAH
ENGINEERING COLLEGE,
SIDSAR CAMPUS, P.O.
VARTEJ, BHAVNAGAR364060 (Gujarat)
YES
2
3MHZ
FUNCTION
GENERATOR
01
60
-As Above-
YES
3
GATE/BASE
TRIGERRING
CIRCUITS TRAINER
01
60
-As Above-
YES
4
SINGLE
PHASE
RECTIFIER TRAINER
(AC-DC)
01
60
-As Above-
YES
5
TUNNED
HARMONIC FILTER
01
60
-As Above-
YES
2
6
THYRISTOR
CONTROLLED
REACTOR
01
60
-As Above-
YES
7
THREE
PHASE
DIODE
CLAMED
MULTILEVEL
INVERTER
01
60
-As Above-
YES
2. Government of India has received a credit from the International Development Association
(IDA)
towards
the
cost
of
the
Technical
Education
Quality
Improvement
Programme[TEQIP]-Phase II Project and intends to apply part of the proceeds of this credit
to eligible payments under the contract for which this invitation for quotations is issued.
3. Quotation,
3.1 The contract shall be for the full quantity as described above.
3.2 Corrections, if any, shall be made by crossing out, initialing, dating and re writing.
3.3 All duties and other levies payable by the supplier under the contract shall be included
in the unit price.
3.4 Applicable taxes shall be quoted separately for all items.
3.5 The prices quoted by the bidder shall be fixed for the duration of the contract and
shall not be subject to adjustment on any account.
3.6 The Prices should be quoted in Indian Rupees only.
4. Each bidder shall submit only one quotation.
5. Quotation shall remain valid for a period not less than 55 days after the last date of
quotation submission.
6. Evaluation of Quotations,
The Purchaser will evaluate and compare the quotations determined to be substantially
responsive i.e. which
6.1 are properly signed ; and
6.2 confirm to the terms and conditions, and specifications.
7. The Quotations would be evaluated for all items together.
3
8. Award of contract:
The Purchaser will award the contract to the bidder whose quotation has been determined
to be substantially responsive and who has offered the lowest evaluated quotation price.
8.1 Notwithstanding the above, the Purchaser reserves the right to accept or reject any
quotations and to cancel the bidding process and reject all quotations at any time
prior to the award of contract.
8.2 The bidder whose bid is accepted will be notified of the award of contract by the
Purchaser prior to expiration of the quotation validity period. The terms of the
accepted offer shall be incorporated in the purchase order.
9. Payment shall be made in Indian Rupees as follows:
Delivery and Installation - 0% of total cost
Satisfactory Acceptance - 100% of total cost
10. All supplied items are under warranty of 12 months from the date of successful acceptance
of items.
11. You are requested to provide your offer latest by 18:10 hours on 19-March-2016.
12. Detailed specifications of the items are at Annexure I.
13. Training Clause (if any) YES
14. Testing/Installation Clause (if any) YES
15. Information brochures/ Product catalogue, if any must be accompanied with the quotation
clearly indicating the model quoted for.
16. Sealed quotation to be submitted/ delivered at the address mentioned below,
Shantilal Shah Engineering College, Sidsar campus, P.O Vartej, Bhavnagar-364 060 GUJARAT
17. We look forward to receiving your quotation and thank you for your interest in this project.
(Authorized Signatory)
(DR.M.G.BHATT)
Name & Designation
4
Annexure I
1
AC SYNCHRO TRANSMITTER RECEIVER
This set up should be designed to demonstrate the working of a synchro
( torque) transmitter with the help of a synchro receiver. Features:
1) The input angular displacement displayed on anodized dial.
2) The output angular displacement displayed on anodized dial.
3) Two rotor terminals (R1 & R2) three stator terminals (S1, S2 and S3) are brought out
on the front panel.
4) Detailed instruction manual.
The system can be studied in two parts:
A: study of synchro only, which demonstrates how a given angular position is converted
into a unique set of stator voltages.
B: interconnection of synchro transmitter and receiver pair demonstrates working og the
set up as a torque transmitter.
SYNCHRO TRANSMITTER AND CONTROL TRANSFORMER.
This set up demonstrates how an error voltage is generated at the rotor terminals of control
transformer in response to angular misalignment between rotors of synchro transmitter
and control transformer.
2
3MHZ FUNCTION GENERATOR
Direct Digital Synthesis technique to create stable and accurate output waveforms.
Internal Modulation makes it easy to modulate waveforms without the need for a separate
modulation source.
Linear sweep is also built in, with adjustable start frequency, stop frequency and sweep
rate from 1ms to 100 sec.
Features



DDS (Direct Digital Synthesis) Technique
Sine, Square, Triangle, Ramp & Pulse
8 - Bit Pattern Generator & TTL
5
3
 Frequency Resolution 1mHz
 20Vpp Output (O.C.)
 Rise/Fall time £ 20ns
 High Accuracy
 Low Distortion
 DC Offset
 60dB Attenuation
 Internal Modulations
 20X4 Character LCD Display
 50 MHz Frequency Counter
 Gold Plated BNC
GATE/BASE TRIGERRING CIRCUITS TRAINER
Trainer kit for studying gate or base drive circuit for different types of semiconductor
devices (SCR / MOSFET).
The Kit includes:
Different types of triggering circuits for SCR: DC Triggering, R Triggering, RC Triggering, UJT
Triggering.
Power Section with SCR, Source and load for checking triggering circuits.
Triggering circuit for MOSFET demonstrating PWM (Pulse Width Modulation), Optical
Isolation and driving.
Power Section with MOSFET, Source and load for checking triggering circuits.
Specification:







Different types of triggering circuits for latching devices like SCR should be
provided.
Triggering circuits for voltage controlled devices with electrical isolation should
be provided.
Analogue as well as digital implementation of gate or base drive circuit should be
demonstrated.
Both triggering circuit and a small rated power circuit should be provided as a part
of kit for experimenting.
The kit should work directly with 230 V 50 Hz AC supply and other low power
supplies required for the operation should be derived internally.
Proper isolation between control and power circuit should be provided.
List of possible experiments on this kit are as following:
 DC triggering circuit,
 R triggering circuit,
 R-C triggering circuit,
 UJT triggering circuits,
 Microcontroller based triggering circuit,
 PWM triggering circuit,
 Optically triggering firing circuit.
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4
SINGLE PHASE RECTIFIER TRAINER (AC-DC)
Trainer kit should studying different configurations of single phase controlled rectifier.
The Kit must include:




Power section for controlled and uncontrolled rectifier
Power section for half-wave and full-wave rectifier.
Power section for fully controlled and half controlled rectifiers
Different types of inbuilt loading arrangements: R Load, R-L Load, R-L-D Load
and provision to connect E externally.
 Gate pulse generating circuit with all intermediate stage waveforms.
Technical Specification:

Controlled (SCR based) as well as uncontrolled (Diode based) rectification
should be possible.
 This kitprovides platform for rigorous experimentation on single-phase rectifiers
with a provision of measuring current waveform.
 Trainer should include step down power supply, control circuit, power circuit and
different types of load internally.
 The kit should work directly with 230 V, 50 Hz, AC supply and other low power
supplies required for the operation should be derived internally.
 Proper isolation between control and power circuit should be provided.
 Loading arrangements should be a part of trainer and experiment R Load and R-L
Load with Freewheeling diode should be provided.
The setup will consist of following cards:
1. Controller Card:
 SST89E516RD MCU @18.432MHz
 Buffered I/O Ports using 74HC573
 5 Keys push to ground
 16*2 LCD (JHD162A)
 UART section (IC Max 232)
 ‘C’ source code files and hex files for the experiments
2. Single phase firing card:
 +ZCD and –ZCD using diodes
 On board carrier using RC circuit
 74HC123
 TIP 122
 Pulse Transformer
 Gate resistor with anti-parallel diode
3. Power card:
 SCR 25TT12 (10A, 1200V) (4 Nos.)
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 Diode 1N5408 (4 Nos.)
 Snubber circuit
List of Experiments:
5
 Single phase half-wave uncontrolled rectifier with different types of load.
 Single phase full-wave uncontrolled rectifier with different types of load.
 Single phase half-wave controlled rectifier with different types of load.
 Single phase full-wave controlled rectifier with different types of load.
 Single phase full-wave half-controlled rectifier with different types of load.
 Single phase SCR’s Gate Pulses and other control signals.

TUNNED HARMONIC FILTER
Trainer for studying tuned harmonic shunt passive filter.
 Diode rectifier as harmonic producing load
 Compensation using 5th harmonic tuned filter branch
 Compensation using 7th harmonic tuned filter branch
 Measuring of voltage and current THD in different load condition is possible.
Specifications:






Diode rectifier with 600 V, 5 A
Resistive Load Bank
Three phase 5th harmonic tuned filter L = 80 mH and C = 5 uF.
Three phase 7th harmonic tuned filter L = 80 mH and C = 2.58 uF.
Contactor based switching mechanism for connecting 5th and 7th filter bank.
One CT and PT for isolated observation of voltage and current waveforms. Multiparameter for measuring supply current THD and other parameters
List of possible experiments on this kit are as following:




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Measurement of voltage, current, active power, reactive power and THD of source
current of the load.
Measurement of voltage, current, active power, reactive power and THD of source
current with 5th harmonic tuned filter connected in the system.
Measurement of voltage, current, active power, reactive power and THD of source
current with 5th and 7th harmonic tuned filter connected in the system.
Observation of source current waveform and its harmonic analysis at different
stage of compensation
THYRISTOR CONTROLLED REACTOR
Trainer for studying working principle of single phase FC-TCR.
The Kit Includes:
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










Microcontroller based gate pulse generation circuit.
Panel for demonstrating TCR and FC-TCR principal
Variable reactive load with fixed inductance and variable resistance.
Single phase fix capacitor which compensate full load reactive power.
Reactor with Thyristor controlled branch is provided
Auto / Manual Operation
Measuring of reactive power in different load condition is possible.
Principle of TCR / FC-TCR is fully demonstrated with this trainer.
CT/PT is provided to see isolated current and voltage waveforms.
Observation of intermediate stage waveforms of gate pulse generation.
Power meter is provided for measuring reactive power
Specifications:







7
Supply Voltage: 230 V, 50 Hz.
Variable R-L load with switching mechanism. (Three Bulbs and One Inductor)
One Capacitor Bank
TCR branch with back to back Thyristors.
One CT and PT for isolated observation of voltage and current waveforms.
Multi-parameter for measuring supply current THD and other parameters.
SST89E516RD MCU @18.432MHz Microcontroller based gate pulse generation circuit
THREE PHASE DIODE CLAMED MULTILEVEL INVERTER
Trainer for studying IGBT based 3 level diode clamped multi-level inverter with different
modulation techniques.
Technical Specification:









3 level diode clamped multi-level inverter power module
Cortex M4 32-bit Microcontroller based gate base circuit
Different modulation technique like Square Mode, Sine PWM, SVM.
12 IGBT with proper heat sink and snubber circuit, 6 power diodes
12 nos. of high speed opto-isolator provided for IGBT PWM inverter
12 nos. of IGBT gate driver IC provided for IGBT gate driving
One no of input DC power supply
3 phase outputs & DC input are terminated in the front panel
All are mounted on a nice cabinet with stickered front panel
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Control Techniques:
Following control techniques of diode clamped multilevel inverter should be studied:
 Square wave mode of operation
 Voltage control using SPWM (Sinusoidal Pulse Width Modulation)
 V/f control using SPWM
 Voltage control using SVM (Space Vector Modulation)
 V/f control using SVM
The setup will consist of following cards:
1. 32 bit ARM-Cortex controller card:
 STM32F407VGT MCU @168MHz
 Buffered I/O Ports using 74HC573
 2 DAC out
 9 ADC input channels with buffering using LM324
 On board QEI (Quadrature Encoder Interface) section
 5 Keys push to ground
 16*2 LCD (JHD162A)
 UART section (RS-232)(IC Max 232)
 RS-485 port
 Hex file will be provided.
2. IGBT based power card:
 IGBT STGW30NC120HD (1200V, 30A) (12 Nos.)
 Diode MUR580 (6 Nos.)
 Power and gate pulse connectors
3. Two numbers of 24V, 2.1 A DC supply using SMPS
4. Load Bank – three phase R and R-L Load bank
List of Experiments:








Study of gate pulse generating circuit for multilevel inverters.
Study of multilevel inverter in square wave mode with R-load.
Study of multilevel inverter in square wave mode with R-L load.
Study of voltage control in multilevel inverter controlled with SPWM inverter.
Study of voltage control in multilevel inverter controlled with SVM inverter.
Study of v/f control in multilevel inverter controlled with SPWM inverter.
Study of v/f control in multilevel inverter controlled with SVM inverter.
Comparative study of SPWM and SVM control in multilevel inverter.
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FORMAT FOR QUOTATION SUBMISSION
(In letterhead of the supplier with seal)
Date: _______________
To:
____________________________
____________________________
Sl.
Description of
No.
Qty.
Unit
Quoted Unit rate in Rs.
Total Price
Sales tax and other
goods (with full
(Including Ex Factory price, excise duty, packing and
(A)
taxes payable
Specifications)
forwarding, transportation, insurance, other local
In
In figures
costs incidental to delivery and warranty/ guaranty
%
(B)
commitments)
Total Cost
Gross Total Cost (A+B): Rs. ________________
We agree to supply the above goods in accordance with the technical specifications for a total contract price of Rs. ———————— (Amount in
figures) (Rupees ————————amount in words) within the period specified in the Invitation for Quotations.
11
We confirm that the normal commercial warranty/ guarantee of ——————— months shall apply to the offered items and we also confirm to
agree with terms and conditions as mentioned in the Invitation Letter.
We hereby certify that we have taken steps to ensure that no person acting for us or on our behalf will engage in bribery.
Signature of Supplier
Name: __________________
Address: __________________
Contact No: ______________