Answer Posted / 7anoter4

See:

https://www.relayspec.com/catalogs/002050/2006/11-12.pdf

What is slope...? Explain slope 1 and slope 2...?

1602

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what is the chemical name and formula of refrigarent R-134a.

2278

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what is difference between line differential and transformer differential?

1732

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when we have to purchase the transformer by own i.e how much load will preferred HT connection?

1664

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List the disadvantages of constant k filters?

1659

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for what purpose the star point is done in ct

1401

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Why power factor should not be in leading (capacitive) mode of any load.

6983

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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?

2269

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What is hipot test procedure?

1453

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wat system call?

1959

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Y phase plates are used in transmission line??? what is there need???

2912

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what are the effects when a salient pole alternator is run at high speed like 3000 r.p.m?

2415

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How do we calculate over and under frequency tolerance from generator data?

1604

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what is the difference b/w absolute encoder and incremental encoder?

2071

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what type of motor used to move a 1 ton gate? and relate ratings with load.

1801

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