Main supp & Dist Flashcards
1
Q
Req of distribution system?
A
- Supply power where needed
- Be flexible
- Have alt supp
- Spare capac
- Disperse services in case damage
- gne & swbd close togther
- Controlled from one point
2
Q
Components **T45 elec prop **system
A
- 2xWR21 GT 21.8Mw
- 2xDG
- 2x2Mw tx
- 2xHV,2xLV harm
- 2 lv,2hv swbd
- 4xNERS,6XDBR,s
- PMS
3
Q
Harm pollution causes?
A
- V distor
- 0 crossin nois
- Unbal line Curre
- Over hea
4
Q
Harm filters are cooled by?
A
- MIDEL ( non conductive rapeseed oil)
- pick up heat & dump it in heat ex
5
Q
NER’s
A
limit earth fault current to accptable limit of 10amp
6
Q
T45 emgen 3 modes of operation
A
- manual
- auto
- test
7
Q
Emgen can be started manually in which ways?
A
battery,hydraulics
8
Q
MCCB’s on emerg swbd
A
- 5 spare
- supp to no3 compressor,
- N supp to stbd steer motr
- A supp to Port steer motr
- 1 emerg DC cable connec
- 10 supp to emerg distri boxes
9
Q
breaker on swbd
A
- Supply= gen to swbd
- Intercon=links fwd & aft swbd
- bb link=link swbd sections tgther @ bb
- feeder=power to edc’s
- SS/SA=connect SS to swbd
