why elcb used in circuit

4 Answers   ABB,

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What is the control action?

0 Answers  

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If the supply voltage is same (say 440V) whether a system designed for 60 Hz frequency will work with 50 Hz frequency or not , if so pl. give clarification.

11 Answers   ABB,

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1. what type of winding of slip ring ac induction motor rotor and why. 2. how the heating element use in two phase (415 volt)and what rating of element, you prefered.

1 Answers   Simbhaoli Sugars,

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how to synchronize 4 nos. of diesel generator sets of different capacity (kva)?

7 Answers   Bhel,

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How to set the star delta timer setting?

1 Answers   Integra,

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what is lightning arester?generaly which type of used in industeries? why its used?

7 Answers   Essar,

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what are the preventive maintanance actions taken for air circuit breaker? please answer me

0 Answers   MAHINDRA,

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How much current will a 5 HP delta connected motor at no load will take?Is tat need a starter

2 Answers   GRB,

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what is the difference between 3 phase 3wire &3phase 4 wire meter?what is the advantage of 3p3w over 3p4w?

1 Answers   L&T, MahaDiscom,

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we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

0 Answers   MTN,

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In India,we use 230V,50HZ,where as many other countries use 110V,60HZ what r d advantages and disadvantages of each of them?

8 Answers   GVK,

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