Maintenance of various capacity of transformer at various location of all sub division under the jurisdictional of valsad city division.

Name of work: Maintenance of various capacity of transformer at various location of Sub Division under the

juridiction of Valsad City Division.

Sr.N Mat Work Cost of Lab

Description Unit Total

o. Used Done Mat Charge

1 Labour charge for prviding of HT/LT bushing goti if required No. 100

1.1 Replacement of LT bushing goti/ Rubber washer No. 40

1.2 Replacement of HT bushing goti/ Rubber washer No. 40

2 Providing of half stud on LT side up to 100 KVA TR if required No. 66 20

3 Providing of AL. Patta on LT side up to 200 KVA TR if required No. 140 5

4 Providing of AL. Patta on LT side up to 500 KVA TR if required No. 165 10

Check and tight earth connection, if required provide lugs & nut-bolt to the neutral

terminal of TRF and to the body terminal of TRF and dist box earth

Replacement of demage LT cable with new one of right capacity (cable provide by

7 Providing of new termination in form of R,Y,B and N core including PVC tape

7.1 Termination of 25/50/70 Sq.mm cable No. 8 20

7.2 Termination of 300 Sq.mm cable No. 45 20

7.3 Termination of 95/120/150 Sq.mm cable No. 16 20

7.4 Termination of 185 Sq.mm cable No. 23 20

7.5 Termination of 240 Sq.mm cable No. 32 20

Measurement of voltage and ampere during maximum load period minimum

nos. of T/C per day

Check oil leakage from drain off valve/gasket/tank leak etc. and if leakage found at

9 attend by providing adhasive material, m-seal and give detail of leakage and No. 150

topping of oil to maintain proper oil level (oil provide by DGVCL)

10 Checking and replacement of LT Dist box if required (Dist box provide by DGVCL) 100

Checking and replacement of Kit-kat fuse if required (Kit-kat fuse be provide by

11.1 100 amp kit-kat fuse No. 20

11.2 200 amp kit-kat fuse No. 20

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 50

12.2 400 amp HRC fuse base No. 525 50

12.3 250 amp HRC fuse base No. 370 50

Checking and replacement of HRC fuse bridge if required (HRC fuse provide by

contractor on std. make)

13.1 630 amp HRC fuse No. 690

13.2 400 amp HRC fuse No. 490

13.3 250 amp HRC fuse No. 352

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

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

16 General condition

16.1 Clean off all dirt etc from the body of the transformer and tighten all nut-bolt etc.

16.2 Clamping of LT cable as per instruction of incharge supervisor

Cleaning of surronding area nearby transformer center, treeming of tree branches,

removing of crimpers etc. JOB 150

Submission of the all activity done at location wise in prescribed proforma format

with signature of incharge of supervisor and contractor

Providing of breather if not available with transformer (breather to be provided by

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 using G.I. strip (Size 25 mm x 3mm flat) to

neutral terminal of X'mer and disl. Box neutral terminal with 3 Mtr PVC rigid pipe.

17 Earthing plate & 20 Kg solt + 20 Kg coal. G.I. strip should be brought proper shap up No. 255 595

to the equipment (Earth registanance to be measured and earth register to be

maintained as per std norms of DGVCL)

LT Side Brass half stud with 2 no brass nut & washer of size 12 mm No. 158 18

LT Side Brass half stud with 2 no brass nut & washer of size 20 mm No. 300 18

19 LT Side Brass Nuts and washer

12 mm Brass LT side nuts No. 16 12

19.2 20 mm Brass LT side nuts No. 41 12

19.3 30 mm Brass LT side nuts No. 68 12

12 mm Brass LT side washer No. 10 12

20 mm Brass LT side washer No. 18 12

30 mm Brass LT side washer No. 20 12

Total Amount 20,00,000/-

Total Amount 20,00,000/-

Total Estimate In Words: Twenty lacs only

% above/below Estimate Amt.

Sign. Of Contractor with seal EXECUTIVE ENGINEER (O&M)

DAKSHIN GUJARAT VIJ COMPANY LIMITED

VALSAD CITY DIVISION

1 The rates required with all taxes but exclusive of GST.

2 Party has to work at his own risk.

The contractor has to collect all the required materials from DGVCL store as well as credit the dismental

material to the DGVCL store at their cost.

4 Contractor should have to provide safety tools while working at site.

5 Contractor has to fill up locationwise Transformer Maintenanace Proforma at a time of maintenance (Profoma provided by DGVCL)

6 Contractor has to fill up date wise, locationwise report as per Provided Proforma (Monthly Data- Hard copy as well as Soft copy)