ANNUAL MAINTENANCE OF 11KV/433V SUBSTATION 1 EQUIPMENT

Amount

Service charges for service and testing of 11kv 3 panel VCB MAKE: KIRLOSKAR a) visual for damage b) cleaning, lubricate & oil moving parts c) resistance value of spring charge motor, closing coil & trip coil d) insulation resistance measurement e) contact resistance measurement f) timing test g) bus bar chamber inside painting works

Supply and Replacement of rubber beadings for 3 VCB's

Supply and Replacement of GI bolt nut (as required) including bus bar bolt nut. (*The quantity is mentioned as approximately)

Supply and Replacement of Pole housing with drive Insulator for 1 VCB (if required) *

Supply and Replacement of Vacuum interrupter 11 kV CG WL-34599 M3+S (if required) *

Supply and installation of 250V/110V DC/100VA powerpack for VCB panel (Make: INUTECK or SPZ)

Supply and Installation of L&T change over TNC switch

Supply and Installation of Mechanical counter for VCB

Testing and calibration of over current and earth fault relay

Testing of trip circuit supervision relay

Testing and service of master trip and auxiliary relays

Testing and calibrations of volt meter, ammeter and annunciator

Testing and calibrations of HT energy meter

Testing and calibrations of space heater

Testing and calibrations of thermostat

Testing and calibrations of powerpack units

Testing and calibration of CT, PT a) insulations resistance test b) secondary winding resistance test c) ratio test

Servicing and testing of 630kva, 11kv/433V Transformer with OLTC a) visual checking for oil leakages b) transformer oil filtrations (including filling of transformer oil and transport charges ) c) BDV and Acidity test d) insulation resistance test e) ratio test f) winding resistance test in all TAP of HT &LV windings g) magnetic balance test h) magnetizing current test i) vector group test j) oil and winding temperature meter along with sensor conditions check k) Bucholz relay test

Leakage arrest in Buchholz relay side

Leakage arrest in HV side (if required) *

Leakage arrest in LV side (if required) *

Testing of breather - including supply of Silica Gel

Testing of RTCC panel along with OLTC

Service charges for service and testing of 415V ACB (Make: ABB & L&T) a) visual checking for damage b) cleaning, lubrications of moving parts c) resistance value of spring charge motor and trip coil & closing coil d) insulation resistance test e) contact resistance test f) protection trip test

Testing and calibrations of conserve make MFM meter a) current checking b) voltage checking c) power factor checking d) energy calibration test with three phase injection kit

Servicing and testing of change over switches (including supply and changing of bolt nuts as required)

Servicing and testing of earth electrode (Including supply & replace of SS bolt nuts. as required)

Servicing of all panel board door locks as required

Purchase of Spares

Supply of 11kv Epoxy busbar supporting insulator with bolt nuts

Supply of 9KV lightning arrestor

Supply of transformer oil

Supply of 110V DC trip coil for Kirloskar VCB (110v, R=39Ohm, 636439 No: 92205)

Supply of 250V/110V DC/100VA powerpack for VCB panel (Make: INUTECK or SPZ)

Supply of 8NO and 8NC AUXLERY SWITCH for Kirlosker VCB (SPC 25P 8169/V77 25A/660V AC/DC)

Supply of Earth resistance tester (Analog) Make: CIE

Supply HT gloves (working potential 11kv tested potential 33 kv above molded type)

Supply HT insulation Tape

WINTECH ENGINEERING SERVICES

GRENEL POWERS PVT.LTD.