74/EUDC-X/2023-24

Amount

Testing of 11 KV VCBs PANEL

Testing of CT's with primary injection set of its metering core and protection core at various ratios and current. Testing for equipment to earth megger value.

Testing of PT with three phase supply for ratio and polarity check. Insulation check by 5KV Megger.

Testing of all relays of the breaker being tested for its proper functioning and tripping within set time and fault clearance timing.

Testing of mastertrip relay that it is operating in time from getting signal and operates for tripping coil.

Testing of breaker operation and functionality that each part of breaker (gear, tripping coil, plunger, springs etc.) operates and break supply and measurement of total fault clearance time.

Providing and installation of TRIPPING COIL/CLOSING COIL 11kV VCB Panel schneider/CGL/STELMEC/PASCAL etc make .

Providing and installation of auxilliary/Rotary switch 11kV VCB Panel schneider/CGL/STELMEC/PASCAL etc make .

Measurement of leakage current of VCB.

Testing of battery and battery charger.

Testing of earthing of VCBs with earth resistivity tester for earth results.

Testing of 33 KV VCBs.

Testing of 33 KV CTs, PTS

Testing and functionality of 33KV relays.

Overall testing of tripping mechanism for local and remote.

Routine Testing of power transformer (Ratio, Megger, Magnetic Balance,Magnetizing Current,Short Circuit, Temperature Setting and Tripping. Bucholz, Winding Resistance, Differential if operative.

Testing of earthing of transformer body and neutral earthing.

Emergency Routine Testing of power transformer (Ratio, Megger, Magnetic Balance,Magnetizing Current,Short Circuit, Temperature Setting and Tripping. Bucholz, Winding Resistance, Differential if operative.

Testing of transformer oil BDV from NABL Accredieted Lab

Replacement of E/F,O/C relays works includes Opening of wiring of defective relay and dismantling from panel.If required Making housing in existing panel according to new relay size and fitting in panel.(Metal plate with colour code as existing panel/screw required for fixing of new relay in panel will be provided by contractor.)Making Interconnection and termination of wire with ferulle and lug of suitable size according to new relay.(Ferulle & lug will be provided by the contractor.Relays will be provided by dept.)After replacement contractor also will have to do testing of relays and checking VCB tripping by both E/F,O/C signal

Replacement of master trip relays works includes Opening of wiring of defective relay and dismantling from panel.If required Making housing in existing panel according to new relay size and fitting in panel.(Metal plate with colour code as existing panel/screw required for fixing of new relay in panel will be provided by contractor.)Making Interconnection and termination of wire with ferulle and lug of suitable size according to new relay.(Ferulle & lug will be provided by the contractor.Relays will be provided by dept.)After replacement contractor also will have to do testing of relays and checking VCB tripping by both E/F,O/C signal

Opening of termination from both ends and dismantling of defective/damage 11kV Panel CT of different ratio.Installation,commissioning and testing of new 11kV Main Panel CT of different ratio.

Opening of termination from both ends and dismantling of defective/damage 11kV Panel PT. Installation,commissioning and testing of new 11kV Main Panel PT.

Providing and installation of 11kV Panel PT HT Fuse.

Providing and installation of 33kV VCB Panel schneider/CGL/STELMEC/PASCAL etc make TRIPPING COIL/CLOSING COIL.

Providing and installation of 33kV VCB Panel schneider/CGL/STELMEC/PASCAL etc make auxilliary/Rotary switch.

PRITHVI ENTERPRISES

P. K. POWER SOLUTIONS