relay & hv tests

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CUSTOMER: M/s CAUVERY POWER GENERATION CHENNAI PVT LTD PROJECT; 1 X 63 MW THERMAL POWER PLANT Scope Of Work For Testing, Pre-commissioning & HV Tests at Cauvery Power project Site I Standard Electrical Testing - STG packege Tests Scope 1 Generator IR, PI. Resistance measurement. yes 2 RTD,BTD resitance measurement. yes 3 yes 4 yes 5 Stability Test yes 6 yes 7 yes 8 Phase sequence,Back charging yes 9 All relays, protections,alarms/trips. yes 10 Connection tightness. yes 11 Earthing including Earth resistance checks yes II Related Panels yes 1 AC Generator & Exciter 1 unit yes 2 Generaor Metering and Synchronising Panel 1 unit yes 3 AVR Panel 1 yes 4 Generator Relay panel 1 yes 5 Generator Transformer Relay panel 1 yes 6 Satation Transformer Relay Panel 1 yes 7 Unit Auxiliary Transformer Relay panel 1 yes 8 4 yes 9 1 yes Note: 1- Any other testing not mentioned above, but required at site sha 3-Tools required for all tests shall be shown with Calibration Tes Generator SCC and OCC and protecions during TG commissioning. Primary/Secondary injection and checking of all the relays,all meters,transducers,equipments etc,. As per the drawings. Checking of Inter connection cables(LT Power & control) between all the panels and equipments Total functionality/control scheme/Synchronizing schemes as per the drawing. MCC's (STG, ACC, Boiler, ESP and Ash Handling system) All types of CT & PT test (polarity, ratio test & etc,.) 2- No. of days to be considered for all above tests and 7days for commissioning stage. 4- All special tools and Test Kit shall be carried including Loadi Injection up to 5000Amps, Relay test kit (Omicron or equivalent to as per attached Generator & Transformer Trip logics including Freq excitation, Over fluxing, Low forward Power, Reverse Power-active, up Impedance, Rotor Earth fault, 100% Earth fault etc..), 3 Phase

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Relay TestingHV Testing

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Sheet1CUSTOMER: M/s CAUVERY POWER GENERATION CHENNAI PVT LTDPROJECT; 1 X 63 MW THERMAL POWER PLANTScope Of Work For Testing, Pre-commissioning &HV Tests at Cauvery Power project SiteIStandard Electrical Testing - STG packegeTestsScopeRemarks1Generator IR, PI. Resistance measurement.yes2RTD,BTD resitance measurement.yes3Generator SCC and OCC and protecions during TG commissioning.yes4Primary/Secondary injection and checking of all the relays,all meters,transducers,equipments etc,. As per the drawings.yesLoading Transformer for Current Injection up to 5000Amps.5Stability Testyes6Checking of Inter connection cables(LT Power & control) between all the panels and equipmentsyes7Total functionality/control scheme/Synchronizing schemes as per the drawing.yes8Phase sequence,Back chargingyes9All relays, protections,alarms/trips.yes10Connection tightness.yes11Earthing including Earth resistance checksyesIIRelated Panelsyes1AC Generator & Exciter1 unityes2Generaor Metering and Synchronising Panel1 unityes3AVR Panel1yes4Generator Relay panel1yesRelay Qty as shown in attached SLD5Generator Transformer Relay panel1yes6Satation Transformer Relay Panel1yes7Unit Auxiliary Transformer Relay panel1yes8MCC's (STG, ACC, Boiler, ESP and Ash Handling system)4yesComplete control scheme check also shall be considered9All types of CT & PT test (polarity, ratio test & etc,.)1yesas per the drawingNote:1- Any other testing not mentioned above, but required at site shall be considered.2- No. of days to be considered for all above tests and 7days for assistance during commissioning stage.3-Tools required for all tests shall be shown with Calibration Test Certificates.4- All special tools and Test Kit shall be carried including Loading Transformer for Current Injection up to 5000Amps, Relay test kit (Omicron or equivalent to test all protection functions as per attached Generator & Transformer Trip logics including Frequency, DF/DT, Loss of excitation, Over fluxing, Low forward Power, Reverse Power-active,reactive, Pole slipping, Back up Impedance, Rotor Earth fault, 100% Earth fault etc..), 3 Phase Variac and 5KV Megger etc..

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