What is the d/f between DOL & star delta starter & automatic star delta starter?

23 Answers   ACC, Dalkia, Engineering, Indeco, NINL, Novotel, RMH Control Systems, Wipro,

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when is safety goggles use mandatory?

3 Answers  

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Meter p.t. ratio= 3×230/400 , c.t.ratio = 3×1 (2) A what is m.f.

0 Answers  

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what is kVA

6 Answers   TATA, Tata Motors,

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how to calculate the power factor when instantaneous voltage and current has harmonics in it ?

0 Answers   Sandhar,

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what is power factor

5 Answers   Exide,

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How to calculate the sag of OPGW during stringing???

0 Answers  

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defination of reactor

3 Answers  

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Why Delta Star Transformers are used for Lighting Loads.

6 Answers  

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Why current flows in nutral? As per theory there should be no current in 3 ph explain.

11 Answers   Bhel,

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operation principle of a generator? Gss, Diesel and HFO which is better and why?

1 Answers  

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while calculating the power absorbed by a resistor connected to the output of a half wave rectifier circuit should we use rms or average current? explain with reason.

1 Answers   Vedanta,

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