Answer / hanupowergrid

Liquid resitance starter (LRS) ,IN which external
resistance is liquied media which is use for the starting
method of slip ring motor.

for starting of slip ring motor external resistance are
required so that we use liquid (addition of some caustic
soda)as resistance so that it is called as LRS.

what is relay type VDG,CDG,VTT ect?

1 Answers   Bhel,

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A 40 kva transformer has a core loss of 400W and a full load copper loss of 800W. What is The proportion of full load at maxmimum efficiency?

1 Answers  

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Why in power plant projects we see DOL starting method used for motors upto 160 kW instead of star delta method

0 Answers   UCC,

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What is marx circuit?

0 Answers  

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in an industrical wiring, why we are using lighting DB and Power DB separately?

3 Answers  

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I have carried out wiring for lighting in a shed in Industrial area which contains Metal halide lamps & have balanced in 3ph.Now when we put all the lines on in the daytime the current taken at 3phases at MCB comes to be equal i.e.28,29,28Amps respectively but in the night time i.e between 7p.m.to 11p.m. at the same MCb the current is 52,59,62Amp, though I have fit 63A MCB it is tripping in the above period.What may be the reason.? Note: This industry is located in industrial area where majority of steel ingot manufacturing plants are there. Whether this may be due to harmonic? what should I do to overcome above problem.pl suggest urgently.

4 Answers  

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How can we check ELCB trip current sensitivity How can we check earth resistance value

2 Answers  

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I WOULD LIKE NOW WHY WE CANT USE SOME CT FOR MESARING AND PROTECTION

2 Answers  

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How Can you do Maintenance of ACB of 2000Amperes

0 Answers   TATA,

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ARE YOU NOURVAS ?

4 Answers  

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in a induction motor if we put capacitor across it will the power factor of the motor will improve? if yes how

6 Answers   Reliance,

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why PD testing for power cables

1 Answers   Bhushan Power Steel, CSE, Datre Corporation,

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