how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you

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Difference between megger test equipment and contact resistance meter test instruments?

0 Answers  

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define transformer

1 Answers  

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One B.O.T Unit ??

10 Answers  

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AC voltage only create magnetic flux in coils, but in Solenoid coil how 24V DC volt create flux and pick the plunger

5 Answers  

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what is the use of breather in transformer?

4 Answers  

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What is the reason that the humming sound is coming from the induction furnace panel?

0 Answers   SKS Microfinance,

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sir, i'm preparing for hpcl exam officer trainee pls tell me how the exam ques paper pls pls

0 Answers  

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Why Transformer in KVA?

41 Answers   APCPDCL, Apollo Power, College School Exams Tests, Electrical Tech, Hitech, HP, L&T, MDL, Oil and Gas Jobs, TATA,

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why square root 2 is multiplied with line voltage in selection of LA ie 11/sqrtroot3=6.35 kv and it is multiplied with sqrt2 ie 6.35 KV*sqrt2=8.9 kv we will select 9kv.my question is why we are multiplying with sqrt 2?

1 Answers   KSPL,

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why on axial hitting up of air blast on hydrogen produced in oil circuit breaker,temperature rises of the core of the arc?

0 Answers  

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What are the protection schemes used for protection of transformers ?

3 Answers   Engineers India Limited,

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