Why two main buses and one transfer bus scheme not using
for 400kV switchyard

Answer Posted / furqan ahmad

in one and halfbreker scheme scheme both breaker and bus
maintenance is possible.even though this scheme is costly
as compared to other schemes but becoz of reliability and
redundancy it is usually used for 400 kv switchyard

Is This Answer Correct ?    2 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the use of bundle conductors?

619


control & auxilary circuits used for circuir breakers

1471


Why is the frequency not changed during transformation of electrical energy in a transformer?

832


What is different between Difnit time and instatous over current relay

1975


gas turbine genrator reactances

1516






use of choke in APFC panels

4874


A 100KVA SINGLE PHASE TRANSFORMER 10000/200V,50HZ REQUIRES 300V AT HV SIDE TO CIRCULATE FULL LOAD CURRENT WITH LV SHORT CIRCUITED.THE INTAKE IS 1000W.THE % OF REGULATION ON FULL LOAD AT 0.8 PF LAGGING WILL BE HOW MUCH AND THE SECONDARY TERMINAL VOLTAGE ON 0.8 PF LEADING WILL BE

2067


how to work droop ct in generating station

2131


How will A Medium voltage circuit breaker(11 kV voltage level) operate under short circuit fault condition whether It is having short circuit release like Low voltage circuit breaker or relay should be given?

1415


by what factor the starting current is used when comparing star and delta connection for motor starting?

1573


why we use two slope(differential & restraining) in differential relay.but in busbar protection differential we are using only one slope?please explain

1716


what is the efficiency of thyristor

1116


What is deference between MCB & MCCB & ISOLATOR

1465


How LT megger works ?

1681


WE know that for Inductor X=2pifL,In DC f=0,then X=0 so,V=IX=0;But In the DC excitation of rotor of AC generator,DC motor field coil which coils are inductor so why does not applying DC voltage short the rotor coil of AC generator and field coil of motor?If it would then DC source might be damaged but it is not happened. Why does the strand conductor of Electrical power transmission line make twist?

3809