Basic philosophy of applying 3P tripping for uptill 132KV
switchyards & for 132KV & above 1P/3P tripping is used.
- 1 Answers
- 3632 Views
- L&T, I also Faced
- E-Mail Answers
Answer Posted / chandrasen mourya
Because most of the line used for transmission by EB are of
220 & 400kV . These lines are of lenght greater then 50 kms.
Due to which any arcing fault which is temp can trip the
line & total suhtdown. The 1p/3p trip with single shot or
multi shot AR is provided in 132kv & above.
| Is This Answer Correct ? | 0 Yes | 2 No |
Post New Answer View All Answers
if grounding is notdone at regular intervals for long distance transmission, will the load connected at distribution end receive voltage during negativehalf cycle of the sine wave?
what is a bus riser in power system and why it is used
what are the advantages disadvantages of connecting high voltage block( 1:1 transformers) transformers between the turbo generators and busbars.
How may I enrol or get admission to your program?
What is a advantage of Self Reset Lockout ? On Fault breaker get trip & fault no longer exist then self reset lockout how inform us?
The knee point of a current transformer is normally unique and known.So why in the nameplate of a CT they put the minimum value like this Vk> 400v.
what are the things that can cause a three phase motor to crawl?
could you measure current in parallel?
aternator every parts and its working
how to calculate the change over time for star delta starter for different KW motor?
how dia of wire and angles are calculated for overhead shielding wire to protect substation equipment from lightening strokes???
can anyone explain 11kV 3core cable megger,hi pot test procedure with connection details?
DG SET BLOCK DIGRAM
What happen in ups if phase reverse?
how is the testing of an REF relay? what are the test REF circuit having?
