PROJECT NAME:
GROUP:
S/NO
1
LOAD BANK REFURBISHMENT
ELECTRICAL
SYSTEM/EQUIPMENTS
RESISTIVE LOAD
SCOPE OF WORK
a. Heater 8.33KW
Qty: 117 in nos
b. Heater 0.85KW
Qty: 30 in nos
Power supply: 400-500VAC, 50/60Hz, 3ph
(1) Disconnect, dismount, remove existing resistive elements
(2) Renew, install, and connect new resistive elements.
(3) Secure all fittings and wirings and tighten all terminal connections.
(4) On completion, carry out functional test for correct operation.
2
INDUCTIVE LOAD
TRANSFORMER
a. 150KVAR
Qty: 4 in nos
b. 75KVAR
Qty: 1 in no
c. 37.5KVAR
Qty: 1 in no
d. 18.75KVAR
Qty: 1 in no
e. 7.5KVAR
Qty: 2 in nos
f. 3.75KVAR
Qty: 1 in no
(1) Disconnect, dismount, remove the transformer and bring to workshop.
(2) Clean out all oily, dusty, and contaminated fully with carbon.
(3) Check and change burnt, damaged or deterioration of insulation with new component.
(4) Test and examine all cablings and wirings for sign of burn and deterioration.
(5) Carry out load test, thermal and hot spot test on transformer.
(6) Carry out winding on coils of wires for primary and secondary part.
(7) Carry out varnish on coils of wires for primary and secondary part and put into oven to bake it.
(8) On completion STW, install the transformer onboard and carry out operational checks and test to the
system.
3
CIRCUIT BREAKER
A. MCB
a. 40A 3Pole MCB for 5KW and 10KW heater (1 in no)
b. 40A 3Pole MCB for 25KW heater (1 in no)
c. 80A 3Pole MCB for 50KW heater (19 in nos)
Specification:
Voltage: 415-440VAC
a. 6A 2Pole MCB (1 in no)
Specification:
Voltage: 230VAC
B. FUSE
a. 250A 3Poles Fuse (4 in nos)
b. 125A 3Poles Fuse (1 in no.)
c. 60A 3Poles Fuse (1 in no.)
d. 30A 3Poles Fuse (1 in no.)
e. 16A 3Poles Fuse (2 in nos)
f. 10A 3Poles Fuse (1 in no.)
(1) Disconnect, dismount, remove existing circuit breaker.
(2) Renew, install, and connect new circuit breaker.
(3) Secure all fittings and wirings and tighten all terminal connections.
(4) On completion, carry out functional test for correct operation
4
CONTROL PANEL
a. Contactor c/w overload - K1 & K2
Brand: Telemarcanique
Type: LC1 D18 & LRD 21
Rating: 230/240V, 50Hz
b. Contactor - K3 & K4
Brand: Telemarcanique
Type: LC1 K06 10M7
Rating: 220/230V, 50/60Hz
c. Contactor - K5
Brand: Telemarcanique
Type: LC1 D0910
Rating: 220/230V, 50/60Hz
d. Contactor - K6
Brand: Schneider
Type: LC1 D25
Rating: 220/230V, 50/60Hz
e. Contactor - K20 & K21
Brand: Schneider
Type: LC1 D50A
Rating: 220/230V, 50/60Hz
f. Contactor - K7, K8, K9, K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K22, K23, K24, K25
Brand: Telemarcanique
Type: LC1 D50 (LC1 D5011)
Rating: 220/230V, 50/60Hz
g. Contactor - K26, K27, K28, K29
Brand: ABB
Type: A145 - 30
Rating: 230 - 240V 50Hz, 277V 60Hz
h. Contactor - K30
Brand: ABB
Type: A26-30-01 (R42)
Rating: 230-240V 50Hz, 277V 60Hz
i. Contactor- K31,K32, K33, K34, K35, K36, K37
Brand: ABB
Type: A9-30-10 (R42)
Rating: 230-240V 50Hz, 277V 60Hz
j. 6A 2Pole MCB, Brand: CLIPSAL (2 in nos)
l. Variable relay off through contact max 10sec (2 in nos)
Brand: HOKKIM TDF-V
Spec: 0-10 Sec
m. Relay (6 in nos)
Brand: OMRON
Rating: 3A 150VAC, 5A 240VAC, 5A 28VDC, 5A 240V~ AC1, 5A 28V - DC1
n. Relay (4 in nos)
Brand: IDEC
Type: A0602
Rating: AC 220-240V, 50/60Hz
(1) Service Control panel for cleaning and preservation.
(2) Examine all cablings and wirings for signs of burn and deterioration. Secure and tag each cabling.
(3) Inspect and clean all component and renew components with signs of burnt, damage or deterioration of
insulation.
(4) Renew all contactors, switches, and indicators.
(5) Ensure all wirings are as per existing drawing and tighten all terminal connection and loose fittings.
(7) Test insulation resistance. Minimum acceptable reading is 1 mega Ohm.
(8) Check the continuity and the insulation of the all cable which related to the equipment.
(9) On completion, reassemble all components and reinstall onboard. Functionally test all controllers and
starters with associated motor to ensure correct sequential operation.
5
STW AND HAT
(1) Reassemble and reinstallation of equipment inclusive all accessories.
(2) On completion, carry out STW and HAT with associated controllers and equipment for correct operation.
(3) Summit the HAT document to end user for approval.
6
UPGRADE MONITORING
SYSTEM
(1) Supply and install new monitoring system c/w laptop and associated equipment.
(2) On completion, carry out STW and HAT with associated controllers and equipment for correct operation.
(3) Summit the HAT document to end user for approval.