Why two main buses and one transfer bus scheme not using
for 400kV switchyard
Answer Posted / naresh.devarakonda
one and half breaker scheme is more reliable, simple
operation and reduces the no. of isolators, bus.
| Is This Answer Correct ? | 4 Yes | 2 No |
Post New Answer View All Answers
which VFD is better ( LT or HT)
How to calculate loses in transformer of 160 KVA ?
hello!my name is sheikh iam preparing for indian engineering servieces,please send me the old question papers..to sheikhshaazforjobs@gmail.com
what is current check gurd relay?
How PADO software increase the efficiency of power plant?
Is there any problem about which the drive (inverter) doesn't show/display the alarm and/or fault but instead of this , it doesn't work ? I want to know that could there be any kind of problem in the drive when the drive doesn't display the alarm and/or fault ?
71ohm,111ohm,95ohm,179ohm in calculate the total ohm in series circuit
Describe Non I.S. Earth System and why is it used?
hello everybody. what does an abnormal stator winding impedance or dc resistance show? thanx
My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I - is the value of AC fault current. t - is the operating time of disconnecting device in seconds. K – is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.
how can we find thae value of capacitor for single phase motor. what is difference between starting capacitor and running capacitor.
why tertiary winding is used in transformer with diagram?
What are the types of excitation system?
how to differentiate a mpcb,mcb with a contactor? Explain their working operation
How do i right a ladder diagram that has 1 actuator that performs a full stroke followed by a half stroke