ELECTRICAL WORK

Amount

Work Portion 220KV Bay:- Erection of Main & Auxiliary structure lattic type DTM, ETM, BXM, CLI, XPM, YMM, BBL, BTI, BCT, ALP,ATM,AXM,CBT,FTM,BTM,XMM,YPM etc. consisting of coloumn, beam, peak, mast etc. and auxilary structure for installation of CTs, PTs, LAs,isolators etc. The job consist of shifting of all material from store to site of erection, erection of structure as per drawing with the help of GI nut & bolt, flat & spring washer, matching the hole, cutting & matching of member and tightenening GI nuts & bolts if required including cost of all men and T & P excluding GI structure Nut & bolt to complete the work.

Modification in 220 KV Khurja line bay to convert in 160 MVA T/F HV Bay & Erection of proposed(New) 220KV Khurja line bay. Erection of 245 KV SF-6 Circuit Breaker in proposed 220KV Khurja line bay.

Erection of 245 KV Bus Isolator ( Motorised ) in proposed 220KV Khurja line bay.

Erection of 245 KV line Isolator ( Motorised ) in proposed 220KV Khurja line bay.

Dismantling of earth switch from existing line isolator in existing 220KV Khurja line bay.

Erection of 245 KV Tandem Isolator ( Motorised ) in proposed 220KV Khurja line bay.

Erection of 245 KV Current Transformer in proposed 220KV Khurja line bay.

Erection and mounting of 245 KV CT Junction Box.

Erection of 245 KV Current Transformer in existing 220KV Khurja line bay.

Erection and mounting of 245 KV CT Junction Box.

Dismantling of 245KV Current Transformer in existing 220KV Khurja line bay along with cutting of earthing strip, and opening of cable and all other associated work to complete the work satisfactorily.

Dismantling of 245KV CT Jn.Box along with cutting of earthing strip, and opening of cable and all other associated work to complete the work satisfactorily.

Erection of 245 KV PotentialTransformer in proposed 220KV Khurja line bay.

Erection and mounting of 245 KV PT Junction Box.

Dismantling of 245KV Potential Transformer in existing 220KV Khurja line bay along with cutting of earthing strip, and opening of cable and all other associated work to complete the work satisfactorily.

Dismantling of 245KV Potential Transformer Jn.Box along with cutting of earthing strip, and opening of cable and all other associated work to complete the work satisfactorily.

Erection of 245 KV Post Insulator for support.

Dismantling of 198KV LA in existing 220KV Khurja line bay along with cutting of earthing strip, and opening of cable and all other associated work to complete the work satisfactorily.

Erection of 198 KV Lighting Arrestors in existing 220KV Khurja line bay.

Erection of 198 KV Lighting Arrestors in proposed 220KV Khurja line bay

Erection of 220 KV Control & Relay Panel of 160 MVA Transformer Panel and making SCADA connection and SAS Panel as per technical specification.

Dismnalting of jumpers of all equipments connected sequentially from from Bus to isolator to CT to LA of existing 220 KV Khurja line bay including opening of associated clamps

Earthing of 198 KV LAs by 06 Nos electrodes 3 Mtr. long (with fabrication of 150 mm long conical shape and its placing vertically inside the ground 700 mm below ground level) in rectangular shape and connecting all 6 Nos electrodes with 75x10 mm MS flat laid on its edge and then this rectangle shape be connected to main earth mat at two places in opposite direction strictly as per drawing.

Stringing (extension)of Main,Transfer& Jack Bus Bar of 220 KV Moose/Zebra conductor as mentioned below(For single main & transfer scheme). The work includes cutting & bending of conductor, fixing of single /double bolted type tension fitting Hoisting of disc insulator and shifting of material from store site to erection site and all other associated work to complete the work satisfactorily as per drawing and technical specification. (A) Extension of 220 KV Main Bus with Single Moose conductor stringing(For 1 section of 20 mtr. Length).

(B) Extension of 220 KV Transfer Bus with Single Moose conductor stringing(For 1 section of 20 mtr. Length).

(C) 220 KV Jack Bus for 160 MVA Transformer and 220 KV Breaker for Moose conductor(For 2 section of 36 mtr & 12 mtr Length).

Jumpering, interconnection of various equipment with specified conductor of new 220 KV line bay from Bus to isolator to CT to LA of Proposed 220KV Khurja line bay. The work includes cutting of conductor, bending in proper shape, clamping with the help of clamps and all other associated work to complete the work.

Jumpering, interconnection of various equipment with specified conductor of new 220 KV TF bay from Bus to isolator to CT to LA to bushing of Proposed 220KV TF bay bay. The work includes cutting of conductor, bending in proper shape, clamping with the help of clamps and all other associated work to complete the work.

Work Portion 132KV Bay:- Erection of 145 KV Current Transformer.

Erection of 145 KV SF-6 Circuit Breaker.

Erection of 145 KV Bus Isolator without earth switch (Motorised)

Erection of 145 KV Tendom Isolator ( Moterized)

Erection of 120 KV Lighting Arrestors.

Erection of 145 KV Post Insulator for support.

Erection and mounting of 145 KV CT Junction Box.

Stringing (extension)of Transfer& Jack Bus Bar of 132 KV Panther/ Moose conductor as mentioned below(For single main & transfer scheme). The work includes cutting & bending of conductor, fixing of single /double bolted type tension fitting Hoisting of disc insulator and shifting of material from store site to erection site and all other associated work to complete the work satisfactorily as per drawing and technical specification. (A) 132 KV Transfer Bus Single Panther conductor (For 2 section of 20 mtr. Length).

(B) 132 KV Jack Bus of single Moose conductor (For 1 section of 20 mtr. Length).

Earthing of 120 KV LAs by 06 Nos electrodes 3 Mtr. long (with fabrication of 150 mm long conical shape and its placing vertically inside the ground 700 mm below ground level) in rectangular shape and connecting all 6 Nos electrodes with 75x10 mm MS flat laid on its edge and then this rectangle shape be connected to main earth mat at two places in opposite direction strictly as per drawing.

Jumpering, interconnection of equipment with specified conductor of various 132 KV equipments with main/Transfer/Jack Bus Bar of ACC Tarantulla / ACSR Moose/Panther conductor. The work includes cutting of conductor, bending in proper shap, clamping with the help of clamps and all other associated work to complete the work.

Earthing of equipments by cutting straightening, welding,bending, laying 700 mm below ground and above ground of following size of MS flat for earthing of main and auxiliary structure, equipments structure Transformer body and its neutral point including welding with main earthmat and with object to be earthed. Excavation of trenches, its back filling and all other associated work as required to complete the work. (A) Laying of MS Flat of size 75x10 mm

(B) Laying of MS Flat of size 50x6 mm

Painting of MS flat of different size after cleaning of rusted surface 1st coat of Red Oxide and 2 coat of Bus Green Paint to complete the work. (A) MS Flat of size 75x10 mm

(B) MS Flat of size 50x6 mm

Laying of following size control cable in trench/cable trays from different control room equipments to 220/132 KV CB, CT,CVT and their juntion boxes, Transformer marshaling box, isolators box and other outdoor equipments installed in 220/132 KV switch yard and through control room equipments as per cable schedule including carriage of cable drum from store and inluding proper ferruling which is provided by contractor and all other associated work. (A) 2 core x 2.5 mm2

(B) 4 core x 2.5 mm2

(C) 6 core x 2.5 mm2

(D) 10 core x 2.5 mm2

Termination of control cable(Of All cores) at both(control room and switchyard) end

Periphery and switchyard lighting. (A) Providing and fixing of half round GI pipe ID-50/OD-60mm for mounting the 120 Watt LED light upon gantry mounting of 2 No GI bracket up on gantry and fixing GI pipe complete with nut bolt and washer as per technical specification.

Providing and fixing of junction box on gantry structure with 1 No MS flat 40x5 mm of size 300x195x95 mm made of SMC(Sheet moulding compound) sheet of 16 gauge dully powder coated inside mounting 1 No 6 Amp MCB 1 No TB of 4 terminal & 1 No Kit Kat 16 Amp fixed upon mica sheet and back side mounting a flat 40x5 mm with 1 No 16mm dia hole and mounting PVC pipe from ground level to box as per technical specification.

Supply & fixing of new generation energy saving and environment friendly long life versatile pressure die cost aluminum out door high been flood light with high power 120 Watt LED as light source and exclusively designed polycarbonate cover along with electronic driver complete fitting suitable for 220 V input supply for ISI make CGL/Hevels/ Surya/ Philips/Bajaj of equivalent etc. including electrical connection also to be done by the contractor.

Supply Portion:- Bolted type single Tension fitting for single Moose/Zebra Conductor suitable for 1 x16 No Disc insulator with hardware set as per techinical specification.

Bolted type single Suspension fitting for Single Moose/Zebra Conductor Suitable for 1x16 No Disc insulator with hardware set as per techinical specification.

Compression type single tension fitting for ACSR Zebra conductor with jumper cone

Bolted type single Tension fitting for Single Moose/Zebra Conductor suitable for 1 x10 No Disc insulator with turn buckle and hardware set as per techinical specification.

Bolted type single Suspension fitting for Single Moose/Zebra Conductor Suitable for 1x10 No Disc insulator with hardware set as per techinical specification.

Bolted type single Tension fitting for Single Panther Conductor suitable for 1 x10 No Disc insulator with turn buckle and hardware set as per techinical specification.

Bolted type single Suspension fitting for Single Panther Conductor Suitable for 1x10 No Disc insulator with hardware set as per techinical specification.

4 Bolted Type PG clamp suitable for Zebra to Zebra Conductor Complete with HDG nut bolt & washer as per technical specification.

4 Bolted Type PG clamp suitable for Moose to Zebra Conductor Complete with HDG nut bolt & washer as per technical specification.

4 Bolted Type PG clamp suitable for Moose to Tarantulla Conductor Complete with HDG nut bolt & washer as per technical specification.

4 Bolted Type PG clamp suitable for Moose to Moose Conductor Complete with HDG nut bolt & washer as per technical specification.

4 Bolted Type PG clamp suitable for Panther to Panther Conductor Complete with HDG nut bolt & washer as per technical specification.

4 Bolted Type PG clamp suitable for Moose to Panther Conductor Complete with HDG nut bolt & washer as per technical specification.

Bus Post clamp suitable for Zebra/Moose conductor complete with hot dip galvanized nut, bolts & washer as per technical specification.

Supply of cable gland of different sizes. i- 2C x 2.5 mm (16mm)

ii- 4C x 2.5 mm (19mm)

iii-6C x 2.5 mm (22mm)

iv- 10C x 2.5 mm (25mm)

Gupta Elect and Engg Works

M/s S.S. Refregeration