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Tuesday 13th December 2005
Substation SB400
Final testing in 10Kv substation
Kentech perform the final megger testing of bus witnessed by electrical engineers from CTSD, SEIC and the switchgear vendor ABB.
Next the transformer primary 6.6Kv circuit is megger tested at the CTSD powerstation.
After the cable is energised from the powerstation the circuit breaker used for the temporary feed is racked in.
After some small adjustments, the chief electrical engineer from CTSD closes the circuit breaker, energising the 10Kv bus at 3.30pm.
The bus coupler was then closed energising the left hand bus also. With all testing completed, the circuit breaker from the powerstation was again opened and the bus powered down and Earthed. It is now officially classed as commissioned and ready for use!
Electrical Distribution SB 400 10KV
Bus
Cou
pler
L10 L9 L8 L7 L6 L5 L4 L3 L2
L1
ML R11R10R9R8R7R6R5R4R3R2MR
Spare
Spare
ETP T
R4
50
CN
1
K4
70
1A
Inst
Air
K4
40
1 H
P F
uelg
as
R1
L11
K4
70
1B
Inst
Air
Adm
in S
B4
90
N2
-R
Adm
in S
B4
90
N1
-R
Sto
re &
Load S
B4
40
C1
-R
SB400-L 35KV
Bus
Met
erin
g
Bus
Met
erin
g
Uti
litie
s TR
40
0 C
N 2
Uti
litie
s TR
40
0 C
N 4
Uti
litie
s TR
40
0 C
N 1
Uti
litie
s TR
40
0 C
N 3
Norm
al su
pply
SS4
09
Test
supply
SS4
09
Adm
in S
B4
90
N1
-L
Adm
in S
B4
90
N2
-L
Norm
al su
pply
SS4
09
Test
supply
SS4
09
Sto
re &
Load S
B4
40
C1
-L10KV Left 10KV Right
Temporary feeder from CTSD powerstation connected here