In response to Mr Bikas. If fault current is 52 kA then
what will be the CT specification
Answer Posted / k.prakashchandra
CT specification depends on rated/nominal current not the
fault current as it is momentary.
Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
What is open loop and control loop systems?
what is circuit recombiner and how it is different from circuit breaker
Mention the disadvantages of low power factor? How can it be improved?
what is inverter and converter
anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?
What are the application of filter?
What is the permissable nutral current of three phase system as per IS standards?
Whar is the KvA rating of 33Kv substation & actual kv rating of power generaating station.
how we find transformer capacity by ohm
IF TVM OF TRANSFORMER SHOWS POWER FACTOR ON 33 KV SIDE AS 0.97 LAGGING AND ON 132 KV SIDE IS 0.75 LEADING.IS THIS CORRECT.WHERE IS PROBLEM.
1.what is mean by 8/20 micro sec waveshape
sir, 3phase induction motor takes different pf and different KW in three phase while running,explain reason
Is any AC drive(VFD) had a feature of DC injection braking? if available please mention the detail. i.e drive can supply braking torque when the motor in idle state.
What is quadrantal symmetry?
1. What is differential relay? How it operates? 2.How to calculate the Short Circuit Impedance in Transformer? 3.What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works? 4. While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply? 5. What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer? 6. Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example? 7. Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient? 8. What should be the minimum and maximum ohmic value for earthing? 9. Why DC Currents are not used in transformer? 10. What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?