Doha BSP 380/230/115/13.8 kV Sub Station Energized on 23.06.2016 successfully. I really appreciate all Engineering and technicians who's hardly working for achieve the target.
The points should consider before Energization
1. Checks the all transformer and Air busing for temporary earthing.
2. Rack in all MCAG and MFAG relays
3. Close all FTs in the protection panels
4. Check all CB trip circuit supervision relays
5. Check all alrams in the SAS monitor and clear unwanted
6. Take 10 copies of Single line diagram.
7. Check all Secondary VT TBs in LCC and VT MCBs in VT Terminal BOX.
8. Check all CT connections in Metrosil & Resistor
9. Check operation off all equipments ( CB, DS ES , RTCC) final kept all equipment in open condition and put LOCAL/REMOTE switch in REMOTE position.
10. The BB block alarm will appear if CB in test position.
11. Keep all Transformer in lower TAP position ( Lowest voltage)
12. All Surge arrestor shorting link in open position
13. Some times Line Zone -2 time setting will be instantaneous ( If recommended)
14. Check Syn function in all LL-LB LL-DB DL - DB combination ( If possible)
15. Check the Gas levels in Gas monitor and keep GIS gas cylinder and filling machine for back up
16. Open all panels and check IN/OUT switch , open wires, CT VT TBs , all wires should away from the Panel Heater and temporary shorting.
17. Conform the availability of Phase Sequence meter and Multi meter with length leads , and clam meter.
18. Conform Temporary Final setting for Spare bays ( Stub or Over current )
19. Keep all ACDCs in Auto mode .
The points should consider before Energization
1. Checks the all transformer and Air busing for temporary earthing.
2. Rack in all MCAG and MFAG relays
3. Close all FTs in the protection panels
4. Check all CB trip circuit supervision relays
5. Check all alrams in the SAS monitor and clear unwanted
6. Take 10 copies of Single line diagram.
7. Check all Secondary VT TBs in LCC and VT MCBs in VT Terminal BOX.
8. Check all CT connections in Metrosil & Resistor
9. Check operation off all equipments ( CB, DS ES , RTCC) final kept all equipment in open condition and put LOCAL/REMOTE switch in REMOTE position.
10. The BB block alarm will appear if CB in test position.
11. Keep all Transformer in lower TAP position ( Lowest voltage)
12. All Surge arrestor shorting link in open position
13. Some times Line Zone -2 time setting will be instantaneous ( If recommended)
14. Check Syn function in all LL-LB LL-DB DL - DB combination ( If possible)
15. Check the Gas levels in Gas monitor and keep GIS gas cylinder and filling machine for back up
16. Open all panels and check IN/OUT switch , open wires, CT VT TBs , all wires should away from the Panel Heater and temporary shorting.
17. Conform the availability of Phase Sequence meter and Multi meter with length leads , and clam meter.
18. Conform Temporary Final setting for Spare bays ( Stub or Over current )
19. Keep all ACDCs in Auto mode .
