What is the Frequency while we step up the voltage from
220V to 11KV? Is it possible? Explain it?
Answer Posted / amarnath
it should be or it is 49.5 to 50.5 Hz normally. If this is
not the frequency then we need to have a capacitor to
improve the frequency and power factor.
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
What is the phase relationship between the primary and secondary voltages of a transformer?
What happen if 200 KVAR capacitor connected to power continuesly?
what irequirment need to be followed when working on live equipment
what are the sample questions asking to the test cunducting for electrical superwising lisence test?
What if the difference beween internal and exrteranal LBB?
Is it possible to implement Restricted Earth Fault protection for a transformer without neutral CT?
What is dynamo?How it works and what is the function of dynamo in a DG.
What is the safety of UPS?
What is a differential amplifier?
In case of generator when we consume more power produces by it why load on generator increase and starts sound more. and how it is adjusted..
main difference between ac and dc?
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?
Explain the function and difference of Restricted earth fault, simple earth fault and sensitive earth fault with connection diagram.
what is doubling factor in making current of a breaker?
Why the field rheostat is adjusted such that the voltmeter reads 380V