difrent between vcb acb sf6 and mccb breakers

1 Answers   DMRC,

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Why we are putting off the APFC(automatic power factor control) panel while the generator is running?

4 Answers   National Steel,

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Why is it that variation allowed in supply voltage to motors is (+ or -)10 %, whereas that in frequency is (+ or - )5 %

3 Answers  

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tell me exact relation b/n voltage and current and which one is depend other

7 Answers   HAL,

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why ceiling fan give hising sound

2 Answers  

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what does the transformer connection symbol YNaod1 mean ?

3 Answers  

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HOW MUCH KVA DG SET REQUIRED for charging 12v 4000 ah battery?

3 Answers  

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where does core based current transformer is used? and what is the value of lux in a work station?

1 Answers   Space Matrix,

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what will happen if synchronous machine rotor fed from single phase ac supply 

0 Answers  

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I am going to appear for the RRB Chennai junior Engineer online exam. Please send me the previous exams question papers (also solved) to my mail id: rrkhandhar@yahoo.com

0 Answers  

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How many loops can be provided in a circuit as per IS rules.?

1 Answers  

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Can i connect all earth pits in ring system..., And wat IS 3043 says...please help me

1 Answers  

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