Interested to Buy Any Domain ? << Click Here >> for more details...
what happen to the voltage and current in all phases when an
earth fault occur in a phase in three phase three wire
system(delta connected)...
- 1 Answers
- 5141 Views
- I also Faced
- E-Mail Answers
Answer Posted / ramniveth
the usual procedure for transmission is star to delta
for ex: 220KV/33KV
if they transmit 33KV then 33KV will be in star side and
vice versa
in this case say a delta is transmitted and gets an earth
fault .Zero sequence current will be flowing only in the
transformer .
fault current of phase which gets earthed with earth will
be almost zero .because no return path .
voltage becomes zero for the fault phase and the other two
healthy phases voltage gets root three times incresed which
may affect the whole system
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
what is 3rd Harmonics? how it is generated in alternator
What are the advantages and disadvantages of the dc motors?
1. What is the exact formula for one weber? for example,(one ampere = one coulomb electron of electrons crossing a point of conductor at one second. i.e, 1A=1Q/1sec)
What will happen if we on 200kvr capacitor bank(11kv in bus)If there is low load on transformer (1.5 mva 33/11 kv)
The principle of switching circuits for different types of batteries in application of storage systems
What is the different between digital phase converter and ordinary phase converter?
what r PID controllers?why they r used?what is there purpose?plz Explain in detail
if we install two earth pits with a clear space of 5m without any interconnection,by checking the digital multimeter will it show continuity between earth pits? If so what would be the approx. value
Why is a synchronous motor always star connected??
I am having a 1500 KVA transformer whose secondary current is 2086A and my connected load is 1000 KVA, I am having 400 KVAR APFCR for PF improvement what ratio of CT should i install in LT EB Bus to get optimum PF improvement?
What is the working principle of CFL & T5 tube light & 40W tube light with electronic ballast?
In Plumbing services What are accessories we consider for a bathroom?
delta motor winding resistance I take normally single winding is 2.5, which value is came delta connection ie RY ?
state basic meaning of 'INDUSTIAL AUTOMATION'?
After synchronization with grid what is the demand value QKVAR and how we will maintain that?
