~ 8 May 2010 ~

Location : Transformer
Work : Generator Tx GT1B and station Tx ST1B servicing works.

Location : Breaker Bus-Tie PD1
Work : Servicing 415V breaker bus-tie
- 425V UAB1A BRD bus-tie
-check continuity = open 99.9 ohms, close = 0.08, 0.07, 0.08, 0.08 ohms
-ohm balance (phase to phase) = cannot short
- servicing 415V UAB1A BRD incoming = 0.22, 0.22, 0.32, 0.32 ohms

Procedure to service breaker bus-tie and incoming.
1. off ATS
2. select local mode
3. rack-out breaker
4. service breaker
5. rack-in breaker
6. reset alarm
7. select remote mode
8. on ATS
9. close bus-tie breaker
10. then incoming breaker will automatically open
11. select local breaker incoming
12. rack-out breaker
13. service breaker
14. rack-in breaker
15. reset alarm
16. select remote
17. close breaker incoming
18. the automatic the bus-tie breaker will open