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