Answer Posted / muhammad shomail

Yes ; it is true.

what is the function of bearing in dc mchine" and where it is placed

2526

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In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes

741

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The power supplied to a 50mH inductor from a 120V, 60Hz source will be

4731

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it is possible to measurement of tension of slipring induction motor(SRIM)carbon brushes, any maesuring instruments are available in the markets.

1944

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HOW MUCH CURRENT DOES SYNCHRONOUS MOTOR TAKES AT SYNCHRONOUS SPEED IN NO LOAD CONDITION ?

1809

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A cable with concentric PE conductor must be used with frequency converter circuits what does its means.?

1527

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What is electrical diversity factor in electrical installations?

1153

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What is EMC filter in VVVF Drive ?

2677

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What is NGR . What is the purpose of 10 sec ,60 sec rating of NGR.

1617

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is it possible for different brand of H.V transformers to run or operate in parallel to each other? if so how much disturbance can this affact the H.V bus bar?

2077

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what are the available sizes of pin type terminal lugs in the market today?

1794

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what is negative d.c. voltage, why this voltage is used in base transciever station.

2116

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what is the benefit of floating our DC source? if i have two floating DC source of which 1 has a ref voltage of -21VDC and the other of -18VDC. can it be connected in parallel to share a common ref voltage? if not, how do i make both sources to be of common ref voltage? tks

1833

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What are the different losses In a de mac1une'! t.xplam

2689

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why r we using shell transformer for low voltage

1952

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