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DC SERIES MOTOR &AC SERIES MOTOR
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how to calculate the mesh earth network resistance in such substation, is there any recommended resistance values with references , thanks!
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?
what happens to the water pump if ground water level is slowly decreasing?our water pump is varying from no-load full-load due to this problem
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Explain and give me an example of a time when you had to explain some new procedures to your co-workers for quality service delivery, how did you go about it?
can any one tell in easy method for circulating current ??
What are the different towers used in 132kv transmission line? what are the differences between the P,R,S towers used in 132KV and detailed explanation
how electical engineer is related to apsrtc (general) post? if they ask a question in interview as why did u choose this job what shd be answer
Why phase sequence must be same in any ht motor or generator circuit?if phase sequence doesn't same whatever will be affect on circuit?
how to measure the transformer resistance values(dyn11)?and howmuch the minimum value?
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HOW THE OLTC TRANSFORMER SAVE ENERGY IN COMPARISON TO OFF LINE TRANSFORMER AND IS IT ECONOMICAL TO REPLACE THE OFF LINE TRANSFORMER TO OLTC TRANSFORMER
Draw a SLD for main panel for school having connected load of 1200kw and emergency generator 200kw.also show the increase of additional load of chiller 225kw in the lv panel indicating meter postion size of transformer ,cables and capacitor bank.
What is clock position of Transformer?what are the clock positions are there?and what is different of them?
