wht factor are considered to design ACB( air Circuit reaker)
415V
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Answer / har
making capacity
breaking capacity
short circuit capacity & time
Is This Answer Correct ? | 11 Yes | 1 No |
Answer / prashant pate
current rating,duty (indoor/outdoor),protections needed,
control voltage,switching mechanism,cost,Switching arcs etc.
Is This Answer Correct ? | 2 Yes | 3 No |
Answer / srinivasa rao talasila
Making capacity,Breaking capacity,Earth fault and short
circuit,Time and Impulse current rating
Is This Answer Correct ? | 0 Yes | 1 No |
is it possible to say motor horsepower number without seeing name plate(when name plate damaged)
why do we prefer -48 volt instead of -24volt or -12 volt etc. ??
in wind mill use 2100 kw asychronous generator ( induction generator ) rotor voltage : 3300,stator voltage : 690, rpm : 1511 type : MRL063E04 ' we check rotor resistance magger value found following. R-EARTH - 00 M.OHM,Y-EARTH-34 M.OHM,B-EARTH- 33M.OHM R-Y: 31 M.OHM, Y-B: 00 M.OHM,B-R :33 M.OHM HOW CAN I TAKE DECISION?pls ans. quickly
what will happen when two dc motors are connected to each other and anyone of them rotated?
29 Which of the following breaking method save energy? A regenerative breaking B plugging C dynamic breaking D none of above
we have one pumping station and 4.6 MW 7 no.s synchronous motors.so there is no required HT capacitor to improve power factor.But we have two no.s of 25 Mva power transformer connect to distribute the power for motors connect with 220 kv line.So i have required the HT capacitor to improve power factor at HT side i mean power transformer bus side.So please suggest how much HT capacitor banks required for same.
What happens if a three phase induction motor is suddenly single-phased while running? Which type of winding connection will be affected?
22 Answers B4S Solutions, DRDO, FACT, SL Electricals,
as per standards how many neutral earthings and body earthings are needed.please help me
what is difrent between earthing and ground
what is the principle of motor
What do you mean by transformation ratio of instrument transformer?
What is the Maximum Power generation capacity of a Synchronus Machine ??