how i prepare for the written test in mahagenco?
Answer Posted / sushil259
Give more stress on Power systems, power generation and
electrical machines
Is This Answer Correct ? | 10 Yes | 8 No |
Post New Answer View All Answers
how to set the time in digital timer ?
what is high - pot test. what's its use?????
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?
Define what is power quality meter ?
for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?
what is the purpose of high speed earth switch in gas insulated substat
How is the speed of a DC shunt motor related to the armature current?
Why earthing is necessary for any equipment?
What happens when ac supply is given as excitation voltage instead of dc supply
what is sevice settings for mccb?How can be it setted?
Testing procedure of DG alternator stability test
Is a direct shorth ciruit on a branch MCCB in a Low Voltage Switchboard a correct means of tesing the performance for discrimination?
If symmetrical fault occurs at the terminal of a synchronous motor then how the motor will act...explain it..
Ac generato how produce power I need for camplet defination
Why let through energy not considered for ACB breaker while cable sizing?