ARC FOR TRANFORMER MAINTANACE FOR TRANSFORMERS UNDER CONTROL OF Valia,Netrang & Ank R SDN UNDER Ankleshwar (O&M) Division.

Name of work: ARC FOR TRANFORMER MAINTANACE FOR TRANSFORMERS UNDER

CONTROL OF Valia,Netrang & Ank R SDN UNDER Ankleshwar (O&M) Division.

Cost Labour Cost of

Sr. Description of charge Material

no. QTY mater (Rs.) Used Total

1 Labour charqe for providing of HT/LT bushing goti if required No.

1.1 Replacement of LT bushinq goti/Rubber washer No.

1.2 Replacement of HT bushing goti/Rubber washer No.

2 Providing of half stud 0n LT side up to 1OO KVA TR, if required No. 66

3 Providing of AL. Patta on LT side up to 200KVA TR if required No. 140

4 Providing of AL. Patta on LT side up to 500KVA TR if required No. 165

Check and Tight earth conneclion, if required provide lugs & nut-bolt to

5 the neutral terminal of TRF and to the body terminnl of TRF and dist LS 0

Replacement of damage LT cable with new one of right capacity(cable

provide by DGVCL)

Providing a new termination in form of R,Y,B and N core including

7.1 Termination of 25/50/70 Sq mm cable No. 8

7.2 Termination of 300 Sq mm cable No. 45

7.3 Termination of 150 Sq mm cable No. 16

7.4 Termination of 185 Sq mm cable No. 23

7.5 Termination of 240 Sq mm cable No. 32

Measurement of Voltage and Ampere during maximum load period Per

minimum 10 nos of T/C per day No.

Check Oil leakage from drain off valve/gasket/tank leak etc.and if

leakage found at attend by providing adhasive material, m-seal and

give detail of leakage and Topping of oil to maintain proper oil level (oil

provide by OGVCL)

Checking and Replacement of LT Dist Box if required (Dist. Box

provide by DGVCL)

Fixing of new dist. Box with complete wiring including NO.

10.1 clamps, nut bolts etc. (Dist.

Box provide by DGVCL)

Replacement of deteriorated/providing LT dist. Box with NO.

10.2 new up to 100 KVA

capacity & crediting it to store.

Replacement of deteriorated/providing LT dist. Box with NO.

10.3 new above 100 KVA

capacity & crediting it to store.

Checking and Replacement of HRC fuse Base if required. (Kit-Kat

11 fuse base provide by contractor on std. make)

11.1 Up to 100 amp Kit-Kat fuse NO 850

11.2 200 amp Kit- Kat fuse NO 950

Checking and Replacement of HRC fuse base if required. (HRC

fuse base provide by contractor on std. make)

12.1 630 amp HRC fuse base NO 682

12.2 400 amp HRC fuse base NO 525

12.3 250 amp HRC fuse base NO 370

Checking and Replacement of HRC fuse bridge if required. (HRC

fuse provide by contractor)

13.1 630 amp HRC fuse NO

13.2 400 amp HRC fuse No.

13.3 250 amp HRC fuse No.

Providing of proper size of fuse element on HT side (on D.O. fuse with

cleaning of horns)

Providing and replacement of sundry Items like nut, bolt, washer etc.

of appropriate size

16 General Condition

clean off all dirt etc from the body of the transformer and tighten all nut-

16.2 clamping of LT cable as per instruction of incharge superviser

Cleaning of surrounding area nearby transformer center, treeming of

tree branches, removing of crimpers etc

Submissiion of the all activity done at location wise in prescribed JOB

16.4 proforma format with signature of incharge of supervisor and contractor

Providing of Breather if not available with transformer (Breather to be

Provided by DGVCL)

16.6 Providing of Insulated jumper at HT side from D.O. fuse out side to TC

. All three nos. (Jumper wire will be Provided by DGVCL)

Supply & Providing of neutral earthing u s i n g G . I . s t r i p ( s i z e No.

2 5 m m * 3 m m f l a t ) to neutral terminal of X'mer and dist.box

neutral terminal with 3 Mtr PVC Rigid pipe. Earting plate & 20kg solt+

17 20kg coal. G.I.Strip should be brought proper shap up to the 875

equipment (Earth Registanance to be measured and Earth register to

be maintained as per std norms of DGVCL).

18.1 LT Side Brass half stud with 2 no brass nut & washer of size No. 158

18.2 LT Side Brass half stud with 2 no brass nut & washer of size No. 300

19 LT Side Brass Nuts and washer

19.1 12 mm Brass LT side nuts No. 16

19.2 20 mm Brass LT side nuts No. 41

19.3 30 mm Brass LT side nuts No. 68

19.4 12 mm Brass LT side washer No. 10

19.5 20 mm Brass LT side washer No. 18

19.6 30 mm Brass LT side washer No. 18

20.1 Breather plastic transparent body cast metal cap and No. 277

bottom, 1/2'' thread

pipe,250 grams.( Dry gel weight 250 gm)

20.2 Breather plastic transparent body cast metal cap and No. 455

bottom, 1/2'' thread

pipe,500 grams.( Dry gel weight 500 gm)