Answer Posted / jesudoss

can ..u can use electrical interlock acb between mccb.ACB
should have NO,NC contacts.now new MCCBs also have NO,NC
contacts(ex:ABB TMAX - this MCCB have
charging,closing,opening coils also).

what is the use of power transformer in GSS.

2484

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What is magneto on a gas generator. how it functions. its out put is d.c or a.c. how it can be checked for correct functioning

1997

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what is the affect of earth's magnetic field on the frequency used in aircraft???

1998

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why Current is lead 90 degree and voltage is lag 90 degree in a capacitor.? why Current is lag 90 degree and voltage is lead 90 degree in an inductor.?

2259

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what is the significance of terminal voltage and phase sequence in the operation of paralleling of two generators?

2534

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hello friends this is krunal here.. i have applied for he officer train in hpcl electrical stream.. any one who have applied before for electrical stream please help me out.. post ur reply to my mail id: krunal_airforce@yahoo.com.. any tips, old questions for paper or any help will do.. plz help me.. your faithfully, Krunal Darji

1884

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Why do we apply both Differential and REF (HV and LV) protection schemes on YNyn configuration of a transformer?

2126

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What will happen if we introduce negative feedback to a control system that uses a positive feedback?

1087

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what is settable hystersis protection? If any body knows plz kindly post the answer..

2039

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explain wiring system

2570

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Installation method of self treated earth electrode.

2044

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How we can calculate the life of Lead acid battery

1770

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If more than rated DC voltage appears across trip coil of the breaker, what will happen? e.g. in 110V DC circuit system, if voltage across battery terminal showing 121 V

1649

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How much inductance or resistance require as a starter in series with induction motor of specific capacity(e.g. 5 hp) ? What is formula for it ?

1952

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No load tap changing transformer working

1643

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