What is different between Circuit breaker and Isolater?

0 Answers  

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What should be the minimum depth of ground laid 66 kv ht cable?

3 Answers   L&T,

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What is Diff btw MCP & MCB????

10 Answers   Athena, Emerson, Suzlon,

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WHAT HAPPEN IF GENERATOR TURBINE IF TRIP?

7 Answers   CEERI,

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HOW BETTER VOLTAGE REGULATION IS OBTAINED BY HIGH VOLTAGE TRANSMISSION....?

1 Answers   Cummins,

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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?

0 Answers  

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what is the differents and advantages of Electro magnetics relay and static relay ? what is the numerical relay ? advatages?......

7 Answers   CAT, L&T, TCS,

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why dc motor runs slowly when dc supply is given?

2 Answers   L&T,

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How much minimum insulation required between 11kv/3.3kv transformer windings?

0 Answers   Descon,

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Either the Armoured Earthing strip of HT 3 core cable have to pass through CB CT or not , why ???

0 Answers  

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How the field flux is controlled in DC drive ?

4 Answers   TATA,

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what is the power factor used by the PHCN in nigeria? 2. what is the difference between an alternator and generator. 3. Generation of poweris in KV but how is transmission is in MW. 4.If the transmission of power is 20,000MW how can it be increaesed to 80,000MW

0 Answers  

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