Regarding an Annual Maintenance Contract for 11 KV load break switch (LBS) at Dabhel WTP, Dunetha WTP, Magarwada WTP, Multi Office Complex and various Government Buildings in Daman for the period of 2 Years.

Items :

Supply and installation of Monoblock.

Supply and installtion Accrelic glass and gasket.

Supply and installtion Heater.

Megger testing and charging of panel.

Supply and installtion Vacuum bottle housing

Supply and installtion ht support.

Labour Charges for Reparing and Maintenaces of Load Break Switch

Providing, installing & commissioning & getting Plan Approval as well as NOC from Electrical Inspector for draw out type 11 KV indoor extensible type totally enclosed, single busher floor mounting metal clad 400A. vacuum tube circuit breaker confirming to IS: 2516 (Part- I &11, Sec.1) ‘for use on 11 KV, 3 phase, 50 c/s. unearthed A.C. supply system having breaking / rupturing capacity of 350 MVA complete with spring operated mechanism, mechanically ON-OFF and spring mechanism charged, discharged indicators, ON-OFF mechanical push button, operation counters necessary auxiliary switches, closing shunt trip, air insulated busbar chamber having heat shrinkable PVC sleeves, mechanical interlocks safety shutters, isolating plugs and a VCB trolley with three vacuum interrupters with epoxy support insulators and self aligning finger type isolating contacts. The breaker shall be Manual cum motorised mechanism with following accessories. 1. 144 mm. square flush mounting type digital multifunctional meter with communication facility 2. Power Factor Meter One No 3. Double core current transformer cast resin type having ratio 200 to 50/1 core for metering & second core for protection having required class of accuracy. 4. Instantaneous under voltage relay - & Temperature rise Tripping Relay 5. Electrical closing coil & short trip coil operating on 110V. D.C.- 6. Auxiliary relay for anti pumping device 7. Three phase Three limb Drawout type feeder connected & output of 200 VA cast resin insulated potential transformer having ratio 12000V./110V. and 200 VA Burdon with 0.5 accuracy. 8. Common Alarm bell operating on 110V A.C.- One No. 9.Digital KWH Meter - One No. 10. Cable boxes suitable up to 11 KV 3core 150 sq.mm XLPE cable. 11. 230V. A.C. to 110V. D.C. power pack for closing & tripping circuit common.. (for each VCB) 12.Breaker ON-OFF, Auto trip and spring charged indicators 13.Phase indicating & panel illumination lamps with plug socket 14.Numerical Communicable type non directional O/C & E/F Relay with a setting of 5-250% both in O/C & E/F. complete with necessary interconnection with air insulated high grade copper busbar {Breaker Testing scope include Closing Time, Opening Time, VCB Hi-Pot test at Site}{ Relay Testing Scope Include testing of all protection by three phase testing kit at site }(VCB Trolley is to be provided)

DIPAL ELECTRICALS (BID ID -8532)

Maverick Electricals (BID ID -8529)