Repair and running maintenance of 7 Nos. 11KV and 4 no. 3.3KV grade HT switchgears of different types and make installed at main sub-station SDOCM.

Amount

Providing of Am meter, 4"x 4" size digital type, 5Amp oprated, different ratio as 400/200/5, 200/100/5, 300/150/5 etc.

Providing of CBCT for Earth leakage relay, 11KV/3.3KV, 2" Dia, epoxy resin cast

Providing of Test/reset switch NO/NC Auxilary type.

Providing of ferrules, lugs, clips, socket wiring beelts for circuit wiring .

Providing of P.T fuse moulded type 3Amp.

Providing of power pack unit/Rectifire unit, 110V AC/DC supply.

Providing of C.T 100/50/5A, moulded type 11KV/3.3KV, grade 10VA, STC 13.1 KA for 1 sec.

Providing of needle bush shaft for mechanism.

Providing kit- kat type fuse (Bakelite type)6Amp

Providing and fixing of Potential Transformer 160VA/PH, PTR-11KV/3.3KV/110V 3Phase,3 LIMB, Fixed, Epoxy casted, 11KV/3.3KV

Providing of Volt meter 4"x 4" size, digital type, PTR 11KV/3.3KV/110V

Providing of Rotary switch (mechaincal type) in operating mechanism

Providing of trip bar set in mechanism.

Providing Eart leakage relay Flush Mounted Aux Supply-80-300AC/DC, 300-1200mA.

Providing of spout bushing insulator 11KV/3.3KV grade

Providing of Push switch auxilary NO+NC type, 110V opreated for on/off

Providing of latch lever set in operating mechanism.

Providing of Auxiliary contactor 110V coil opreated, 4 NO+4NC for controlling circuit of IDMT relay.

After repairing of switchgear all protective relays testing by secondary injection/relay testing machine as well as testing/ measuring of meters, indicators etc.

Complete body cleaning, Double coat primer and Enamel painting by Spray painting machine including cost of cleaning and painting materils as well as labour cost.

Repairing/setting, overhauling of opreating mechanism cleaning, washing by suitable Oil, Providing of lubricants in all moving joints etc.

Repairing & rectification of control circuit wiring.

Overhauling of bus-bar system with repairing by drilling, cutting, shape making and setting, as well as complete insulation covering.

Repairing/ overhauling and commissioning of switch, such as insulation painting of all insulators, P.T, C.T etc as well as Tightening of all loose connections/point.

Supervision , incidental & overhead expenses

Total impact of GST for the purpose of CTC

M/S NATIONAL ELECTRICAL WORKS (BID ID -1112450)

M/S SHREE TIRUPATI TRADERS (BID ID -1112437)