Answer / anurag_2305

If we supply LT supply to a HT motor the supply would not be
able to develope sufficient starting torque to start the motor
.
And if it is rotating at lower speeds it would not be able to
develope the full load torque as torque is a function of E
Supplied.

Hi friends I am a service engineer in electrical field i plan to shift design engineer in same field, so i request your suggestion for what software or course i want to learn ?

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What is step signal?

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State the difference between Three winding transformers and Two winding transformers ? where its used?

8 Answers  

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how to calculate short circuit calculation of the transformer by usuing the percentage impedence? formula needed.

2 Answers   L&T,

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How good are you in resolving the commercial issues to Employer's advantage?

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Which motor connection is preferable star-delta or delta-star?

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L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

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can we connect both delta and star to the transformer secondary and for what reason?

5 Answers   Power Grid,

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two TG running in parallel at equal load.one TG CB tripped in reverse power relay.after tripping found its excitation was on & turbine running at rated speed.Please clearify why that TG tripped in reverse power ?

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what is the capacitance of a single conductor

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I have a relay contact rated at 220v dc which is supplied with a 24vdc from the panel,for it to trip the dampers(24vdc).What if the application of the relay changes so that it should work at its rated 220vdc then will it work at 24vdc supply given or any other consideration needs to be taken .....

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why the voltage level is changed when the unearth cable is earth

2 Answers  

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