To be completed by the Bidder. Sl.No. Parameters CPRI Specification / Requirements Qty

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1 Revision N : 03 Issue No : 2 Dt of Revis : Issue Dt. : Page No. : of 5 Issued by : P A CENTRAL POWER RESEARCH INSTITUTE, BHOPAL, Web: Telefax: Tender Enquiry No : STDS/2 /207 8/PUR/STL/A 954 Description of the Equipment/Goods/Services : Errors Test on Instrument Transformers & Calibration of Instrument Transformers. Note : ) The Offers should be submitted only in this format otherwise the offer will be liable to be rejected. 2) All blue fields are mandatorily to be filled in. 3) Pre despatch Inspection & Training expenses shall be borne by CPRI. Information regarding the readiness of the equipment/machinery for Name of the Vendor Quotation Number and Date Sl.No. Parameters CPRI Specification / Requirements Qty Guaranteed Specify Technical deviations/ Particulars (GTP) Remarks if any Scope: Place Switchgear Testing and Development Station,Bhopal Design, Supply and Commissioning of Accuracy Measuring System of Instrument Transformers (Current Transformers, Inductive Voltage Transformers and Capacitor Voltage Transformers) as per IEC: 6869-,2,3&5, IEEE std C57.3,IS:2705,IS:356 (Latest) consisting of the following: ) Automatic Instrument Transformer Test Set 2) Current Comparator (Standard Current Transformer) 3) Standard Electronic Voltage Divider 4) Current Burden(programmable) 5) Voltage Burden (programmable) 6) Installation and commissioning of the above equipment at STDS, CPRI, Bhopal

2 Revision No. : 03 Issue No : 2 Dt of Revision : Issue Dt. : Page No. : 2 of 5 Issued by : P A CENTRAL POWER RESEARCH INSTITUTE, BHOPAL Web: Telefax: Sl.No. Parameters CPRI Specification / Requirements Qty Guaranteed Technical Particulars (GTP) Specify deviations/ Remarks if any ) General conditions required for all the item in serial No. to 5 Mains supply : 230Vac ± 0% (Single phase) Frequency : 50Hz ± 5% Power rating : According to the individual component comprising the system SERVICE CONDITIONS : MSL : 523mm Ambient temperature : upto 45 C Humidity : 5-80%RH Non condensing Type of installation : Indoor Detailed specifications: ) Automatic Instrument Transformer Test Set The instrument shall be capable of measuring accuracy of current and voltage transformers with a single instrument. It shall be capable of fully automatic measurement and digital display of current /voltage ratio errors, phase displacement, test current and voltage for any primary and secondary current and voltage ratings. Measurements shall be possible even for different standard and test transformer ratios without using external divider. The instrument shall meet all the requirements of accuracy measurements as per IEC: 6869-,2,3 & 5,IEEE std C57.3,IS:2705,IS:356 (Latest).) Current transformer measuring part Input specification ( Transformer under test) a) Rated secondary current : -5A b) Maximum operating range : to 20% of rated secondary current c) inherent burden at rated current <5VA Input specification ( Standard Transformer) a) Rated secondary current : 5A b) Maximum operating range : to 20% of rated secondary current c) Inherent burden at rated current<5va The instrument shall take the rated primary and secondary currents as inputs and match the standard transformer ratio automatically Limits of input values Rated primary current: A to 0000 A (lower limit less than A is acceptable) Rated secondary current: 0 ma to 5 A (Continuously adjustable) upto 20 %

3 .2) Voltage transformer measurement part (Transformer under test and standard transformer) Input specifications (Transformer under test) a) Rated secondary voltage: 40V additional with factors x/ 3, x/3 b) Maximum operating range : 3 to 300V The instrument shall take the rated primary and secondary voltages as inputs and match the standard transformer ratio automatically Limits of input values: Rated primary voltage: 3 V to 300 kv Rated secondary voltage: 3 V to 300 V (Continuously adjustable) with factors x/ 3, x/3.3) Current and voltage measurement part Resolution Current / voltage error : ppm (0.000 %) Phase angle : 0.00 min Test current : 0.00 A Test voltage : 0. V Measurement frequency : 0. Hz Display : 6-digit LCD display to display the values of: Ratio error (current/ voltage) Phase angle (phase displacement), Excitation (test current/voltage) Limits of error at current transformer measurements and voltage transformer measurement shall be with Ratio error Current ratio error : ± 0.5 % of rdg ± 0 ppm ± digit Voltage ratio error : ± 0.5 % of rdg ± 50 ppm ± digit Phase angle Current instrument transformer : ± 0.5 % of rdg ± min ± digit Voltage instrument transformer : ± 0.5 % of rdg ± 0.7 min ± digit Excitation Measuring current ± 0.5 % of rdg ± 0.5 % Fs Measuring voltage ± 0.5 % of rdg ± 0.5 % Fs

4 Revision No. : 03 Issue No : 2 Dt of Revision : Issue Dt. : Page No. : 3 of 5 Issued by : P A CENTRAL POWER RESEARCH INSTITUTE, BHOPAL Web: Telefax: Sl.No. Parameters CPRI Specification / Requirements Qty Guaranteed Technical Particulars (GTP) Specify deviations/ Remarks if any 2) Current comparator The instrument shall be capable of using with any other make instrument transformer test sets. The instrument shall be designed to have zero flux in the core. Specifications Current Rating Primary current 5 to 5000 Amps Secondary current 5 Amps Accuracy Ratio error ± 0.00 % for currents to 200 % of rated current Phase angle error ± 0.05 minutes for currents to 200 % of rated current Output power 5 VA max. Protection Built in overload protection shall be provided with overload warning and Temperature warning for excess temperature. The instrument shall be provided with castor wheels for easy mobility. The instrument shall be supplied along with calibration certificate from a laboratory accredited in accordance with ISO / IEC 7025 for full range of % to 20 % at both A and 5 A

5 3) Standard Capacitive Voltage Divider The system shall comprise of a standard electronic voltage divider with capacitor standard divider. The high voltage divider unit shall consist of a high voltage divider and an electronic device in series constituting a variable electronic divider. Technical Specifications for standard electronic voltage divider Power Supply : 230V, single phase, 50Hz Power rating : 00VA Maximum measurement voltage 300kV (with a Divider ratio :300) Input Max. input voltage : 000V Input capacitance < 0.pF Output Max output voltage : 250V Max output power : 5VA Max. load capacitance : 0nF The electronic voltage divider must be provided with an adaptor box for interface between the divider and the control unit for : ratio. System parameters Rated primary voltage - Direct input range : 0.0 to.0 kv -With capacitive divider :0.00 to.00kv(the direct input multiplied by the divider ratio) The multiplication factors x,x/ 3,x/3 Rated secondary voltage input range : 5 to 250 V Multiplication Factor : x,x/ 3,x/3, Technical Specifications for capacitive voltage divider The required capacitance for divider C : 50 pf C2 : 0,000 pf +5000pF Cable R ti must 300be provided with appropriate connectors for connecting the primary and secondary units of the divider. Length of measuring cable from divider to control unit shall be 0 metres The standard electronic voltage divider and the capacitor standard divider system must be quoted seperately The equipment shall be calibrated upto their full operating range at a laboratory accrediated as per ISO/IEC ) Specifications for Programmable Electronic Current Burden The instrument shall be capable of using with any other make instrument transformer test sets. The instrument shall have facilities for total integration in to an automatic measurement system through RS-232. The instrument shall facilitate extension of power levels upto 200 VA through combined or additional passive burdens without change in accuracy.

6 Revision No. : 03 Issue No : 2 Dt of Revision : Issue Dt. : Page No. : 4 of 5 Issued by : P A CENTRAL POWER RESEARCH INSTITUTE, BHOPAL Web: Telefax: Sl.No. Parameters CPRI Specification / Requirements Qty Guaranteed Technical Particulars (GTP) Specify deviations/ Remarks if any Parameter Rated Power Rated Power : to 75 VA Step size : 0. VA Power factor cos β Power factor cos β : 0.5 to ind. Step size : 0.0 Rated Current Rated current : and 5 A Current values with factors : / and / 3 Operating range to 200 % of rated current Test voltage frequency : 48 to 62Hz Error thresholds Under reference conditions specified in IEC: 359 and frequency of 50 Hz Resistance ΔR / ïzï ± % ReactanceΔX / ïzï ± % Under rated service conditions specified in IEC: 359 and frequency of 50 Hz Resistance ΔR / ïzï ± 3 % Reactance ΔX / ïzï ± 3 % At 0 VA setting S< 0.05 VA Additional passive current burden Rated power : 75 VA to 200 VA Rated current : & 5 A Current values with factors : / and / 3 Power factor 0.5 to inductive Display : The instrument shall have large LCD display for easy operation and display of measurement results Calibration : The instrument shall be supplied along with calibration certificate from a laboratory accredited as per ISO / IEC 7025.

7 5) Specifications for Programmable Electronic Voltage Burden The instrument shall be capable of using with any other make instrument transformer test sets. The instrument shall have facilities for total integration in to an automatic measurement system through RS-232. The instrument shall facilitate extension of power levels upto 400 VA through combined or additional passive burdens without change in accuracy. Rated Power Rated Power : VA to 75 VA extendable upto 400VA with 0.8lag p.f Step size 0. VA Power factor cos β Power factor cos β to 35 VA: 0. to ind. 35 to 75 VA: 0.5 to ind. Step size 0.0 Rated Voltage Rated voltage : 00/0/5/20/200/230V upto75va Voltage values with factors /, / 3 and /3 Voltage range 2 to 90 % of rated voltage Test voltage frequency : 48 to 62Hz Error thresholds Under reference conditions specified in IEC: 359 and frequency of 50 Hz Resistance ΔR / ïzï ± % Reactance ΔX / ïzï ± % Under rated service conditions specified in IEC: 359 and frequency of 50 Hz Resistance ΔR / ïzï ± 3 % Reactance ΔX / ïzï ± 3 % Additional passive voltage burden Rated power 75 VA to 400 VA Rated voltage 00/0V Voltage values with factors /, / 3 and /3 Power factor 0.8 and 0.85 Display : The instrument shall have large LCD display for easy operation and display of measurement results 6) Calibration The instrument shall be supplied along with calibration certificate from a laboratory accredited as per ISO / IEC 7025

8 Revision No. : 03 Issue No : 2 Dt of Revision : Issue Dt. : Page No. : 5 of 5 Issued by : P A CENTRAL POWER RESEARCH INSTITUTE, BHOPAL Web: Telefax: Sl.No. Parameters CPRI Specification / Requirements Qty Guaranteed Technical Particulars (GTP) Specify deviations/ Remarks if any 7) 8) Manuals Pre-qualifying requirements 9) Pre-Dispatch Inspection Two sets in English to be supplied in Hard copy - Operation and maintenance - Drawings - Copy of software -Electrical/ instrumentation -Technical/ service manual - Circuit diagrams of all PCB's.The bidder shall be a reputed and capable firm within and outside India,with proven track-records and have atleast 0years experience of supplying the equipment /similar type of equipment to reputed national / international laboratories. 2. The performance certificate of the equipment issued by the different end-user/owner shall be submitted as documentary evidence. 3. The bidding company must certify that the technology /equipment quoted is state of the art and latest and the original vendor shall provide the technology support for atleast five years. The equipments/instruments of the test set-up will be inspected at site by CPRI representative before satisfactory delivery to CPRI. Further the test-system will also to be checked on actual test at CPRI Lab to prove its performance in testing as per the standards and specifications concerned to the test object intended. Any instrument with specified accuracy limits in the system should have its calibration traceability with National/International accrediated laboratory.the expenditure will be done as per the CPRI rules. 0) Other terms & conditions : All other terms and conditions shall comply with CPRI's purchase procedure. The circuit diagram, operation manuals, maintenance instructions of the test system/equipment/instrument shall be submitted in duplicate to CPRI alongwith the set up. ) Training : Two days training on operation and maintenance to CPRI engineers shall be provided. 2) Warranty: One year from the date of commissioning. PN: ) Bidder shall indicate complete details/information how the CPRI GTP are complied with against each and every specification parameters & mere statement of 'complied' do not suffice the requirement. 2)A detailed technical/catalogue/literature/phamplet and any other technocal details shall be submitted in hard copy in a sealed cover superscribing enquiry number and due date so as to reach the below mentioned address within due date and time. 3) The Indian representative of the foreign/overseas firms shall submit the Letter of Authorization issued by their principals. 4)The bidder shall submit the quotation / offer in the above prescribed format of Section IA, IB and II only. Informations any other forms shall shall be rejected. Address : Joint Director (Purchase), Purchase Authrity, Central Power Research Institute, Govindpura, Bhopal Telefax: , praveens@cpri.in, web :