Public Works Department Tender

Running Maintenance

OD149763/2024-2025:1)Charges for servicing the existing Dry Type 1 Nos 1000KVA Resitech Meke In door Transformer, cleaning, checking the condition of core and tightening of core , winding, HT / LT bush and Terminals, varnishing, and make the transformer in good working condition. After servicing check the insulation resistance and to provide detailed report before recharging. 2) Repair and maintenance of VCB by cleaning using CRC, relubricating using standard grease all mechanical linkages inspect all breaker parts, remove all covers and arc extinguishing shields, inspect for damage wear and deterioration. Checking all Mechanical/Electrical ON/OFF operation , manual Spring operation , Rack in /Rack out operation , Interlock Check etc of siemens make VCB .After servicing check the insulation resistance and micro-ohm meter test in the closed condition , detailed report to be provided before recharging.

OD149718/2024-2025:Supply , installation, testing and commisioning of Transformer Protection Relay (Temperature Scanner) Single scanner unit for three winding and fan Control. Four output relays for Alarm (High), Trip (V High), Fan on/off (Fan) and to warn against sensor open or wrong sensor connection (Fault). Memorizes max temperature even after power fail conditions. Temperature indication range : 0 to 300 °C. Set point range : 1 to 300 °C. Supply Voltage : 90 - 270 VAC/DC. Outputs : Four relay contacts (one C/O contact for – Fault, Fan, High & V.High), One analog 4-20mA output .