WBPHE/EE/SMD/NIeT-14 of 2026-27/26

Labour charges for day to day round the clock operation of 33/6.6/0.433 KV indoor type sub station with 26.3KA, 1250A,VCB, 2MVA, 33/6.9 KV 2 Nos indoor type transformer, 150KVA, 6.9/0.433 KV 2 Nos indoor type transformer, indoor type HV and LV panels, HV panels for raw water pumps, control panels, 5Nos. 215KVAR Capcitor panel, on load tap changers including 110 volt DC trip circuit with maintenance free batteries, battery charger, indoor type 630A, 25KA VCBs, and other allied accessories including sweeping cleaning of outdoor switch yard, control room, office room, toilets etc. by engaging electrical supervisor, electrician etc. as per direction of EIC.

Routine and periodical maintenance of all indoor type LT & HT VCB panel board, cables. capacitors, transformers, battery with battery charger, CTs & PTs earthing system, all VCB, on load tap changer, tightening nuts & bolts of bus bar, replacement of control Fuses and indication lamp, Cleaning of Isolators ete. as per direction of EIC for a period of 12 months.

Servicing testing and calibration of the following IDMT instantaneous and differential relays by any testing agency approved by WBSEDCL or Directt. af Electricity Board once in a year or as directed by ElC. (For 33 KV 4 Panel) A] Non directional IDMT O/C and E/F with high set relays B] Trans.Numerical relays C] All the auxiliary relays D] Bucholtz relay with alarm and trip(WTI,OTI) E] Alarm, trip and annunciator circuit F] Calibration of all meters G] VCB's H] On load remote tap changers Test results to be submitted.

Servicing and testing and calibration of indoor type 11 panel 6.9 KV VCBs including Motor feeder VCB, 5Nos.215 KVAR Capcitor panel,HV and LV panel boards,Micom realys(P-225,P-111), checking complete wiring of CT's, PT's , with insulations, checking instrumentation panels, checking cleaning of bus bars (both HT& LT feeders and the contacts by any testing agency approved by the WBSEDCL or Directorate of Electricity Board once in a year or as directed by EIC

Servicing, testing and calibration of 33KV VCB panel at WBSEDCL side covering 2 incomers, 1 outgoing and 1Bus PT service mechanisms, conduct IR & CRM. Test results to be submitted as per direction.

OLTC servising, testing & calibration with thoroughly Inspection, fixed & moving contact tightness checking, roller alignment checking, complete removing of insulating parts & IR improvement, Greasing of motor bearing sprocket, Mechanical alignment of tap changer sprocket & bearing after oil drain out from OLTC and filling after all complete with filteration. work conduct as per direction of EIC if required.

Day to day operation of SCADA with on line process instruments, common header flow, Sub Station data calection, Pumping Operation system control panei with control valves, daily data store in computer, software maintenance etc. including cleaning sweeping of SCADA room and toilets etc.

Routine and periodical maintenance of PLC panel with RTU, RTD, RDU panel and GIP, OFC terminals and UPS with battery, server computer, including overhauling, calibration of all online instruments and measuring instruments including supply and fitting fixing of panel indicating lamps with holders, MCBs and control fuses as and when required with supply of required quantity of blank CD for data backup system and other writing purposes, printing papers of different sizes, black and color ink cartridges for main server, with fitting fixing of departmental supplied spares for on line instruments of SCADA system as per direction of EIC for a period of 12 months.