what are the disadvantages of low power factor

0 Answers   HMK,

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For 7.5kw star delta starter how to calculate 1. Mccb rating 2. Contactor rating 3. Over load relay rating

1 Answers   L&T, MAHINDRA,

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why the conservater tank alwes made upper side of transformer???

3 Answers  

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what is the formula for converting dc power(watt) to ac power (watt)?

3 Answers   ABB,

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Why in India distribution transformer are connected in Dyn11 when we know capacity of v-v connection can be increased by adding only a single transformer?

1 Answers   CSPL,

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what is the chemical name and formula of refrigarent R-134a.

0 Answers   Blue Star,

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what is the working of ups.

7 Answers  

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why we provided electrical earthing?

5 Answers   CPCL,

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I have a current transformer with 1 main reading meter with transformer outside the building and a control panel having 5 CT reading meters with black round coils inside the building. I want to know, A) when current pass through the Transformers, will the current be reduced or be the same and after that B) when current pass through the CT meters with black round coils, will the current be reduced or be the same. C) in the above process will the reading of the main meter be same or different, from the total reading of all the 5 CT meters.

0 Answers  

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in dc suppy frequency is zero why? if dc frequency is zero how to exist dc transients and ac transients

0 Answers   Siemens,

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. What is Electrical Life & Mechanical Life of Circuit Breaker? 2. What is Electrial Life & Mechanical Life of Magnetic Contactor? 3. What is RCD, RCCB & RCBO? 4. What is the Between defferance of RCD, RCCB & RCBO?

0 Answers  

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Following test should be conducted to find out relative polarity of transformenr terminals A no load test B back to back test C phasing out test D none of above

0 Answers  

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