pls tell what are doing the three phase motor star and delta connetion with circuit diagram and control wiring .

0 Answers   Mukand,

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Testing procedure of DG alternator stability test

0 Answers   Amprotec,

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cb used in railway applications is?

2 Answers   NTPC,

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if we install two earth pits with a clear space of 5m without any interconnection,by checking the digital multimeter will it show continuity between earth pits? If so what would be the approx. value

0 Answers  

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how many desk top computer can connect to a 25kva 3phase generator?

1 Answers  

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why PT transformer primary r the grounded?

2 Answers   L&T,

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Write down the design procedure of commutaj.

0 Answers  

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why ht motors are star connected?

0 Answers  

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why protection and metering CT's are always connected in star why not in delta?

5 Answers   Reliance,

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describe the Operation of induction generators from bus bars

0 Answers   AMIE,

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If we feed 230V ac supply to a full wave rectifare, what & how much will be the out put voltage?

3 Answers  

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1)Why potential transformer primary site grounded? 2)can be loop between neutral & body for grounding? 3)What is the difference between ELCB &RCCB? 4)Why we use iron core in transformer insted of wooden core? 5)what is the principle of excitation? 6)Why we test the core balance test for transformer? 7)what is creepage?What is the creepage length for insulators at different voltages? 8)How much type of relays used for differential protection of generator,transformer & busbar protection?

5 Answers  

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