How to define Kirchhoff current law and voltage law along with simply examples.

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Whether 3 phase induction motorwith 100 hp capacity , Amp 160 for which sensitive earth fault relay , type CTUM 15 can be used?

0 Answers   ONGC,

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Less cost of delta connection over star connection a. No fourth neautral wire

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what is doid

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Genreally distribution transformers are having Star/delta connections to provide phase and neutral to the consumers. Is the neutral of the star conncted secondary grounded in these transformers?

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What is meant by RCCB

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In constant power region of 3-phase IM torque-speed characteristics, if frequency increases slip A does not alter B decreases C increases D none of above

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in control panel, how can i measuring the distance between one bus bar to another bus bar. then now only for bus bar. in mpcb and contactor also. that means one mpcb to another mpcb how much distance? how can i calculate that.

0 Answers   ABB,

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what is meaning volt-hz ration,where is necessry tomaintain and why. specialy during increase the power of generator.

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what is current actully?significance of current...not rate of change of flow.....

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Kindly give the brief explanations for checking 12.5 kvar 440V, 25 KVAR 440V, 12.5KVAR 690V, 25 KVAR 690V capacitors microfarad values. what is the microfarad values for the above four type of capacitors, and give the formula explanations briefly. I know F-50HZ, voltage, and capacitor.

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a motor's measured current is 45amp,whereas the rated current is 38 amps but still it is running ,how?

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