Answer Posted / tanmay kumar

Contactor is an electrically controlled switch used to make power circuits.

What is meant by system?

1064

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1.what is difference between ATS & STS main use. 2.what is difference between ACB& VCB With symobles,and main partes, manimum range. 3.How many types of relays and main function.

6304

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A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.

1108

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How to find out damper winding failure for synchronous machine?

1512

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How does an oscillator differ from an amplifier?

1157

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I meggared my 2c*70 sq mm AL AR XLPE cable. its one end show 50 M ohm . is my cable is safe for laying. I have only one phase and neutral.

1883

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What is inrush current?

1177

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How is the speed of a DC shunt motor related to the armature current?

1183

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What is servo motor? what is its purpose?

2055

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Is it true online ups having bypass mode if it is true then why we called ups because it is interrupting power when goes in bypass mode

2030

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How can we measure the residual voltage in dc machines?

1867

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what is the breaking capacity and making capacity of circuit breaker and how

2131

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what is high and low cut off voltage of BB and DG at SPS????????

1474

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How to Make relay co ordination chart for a Electrical power distribution of a plant

3842

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Explain Circuit Breaker Trip Characteristics in detail.

2134

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