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 |
draw singleline diagram of star to delta and dol starters
1 “earthing” for bonding of equipment and circuits to common plant earth electrode potential, 2 “protective earthing (PE)” when this bonding is required for personal safety provisions 3 “grounding” for interference suppressing bonding of screens, sys-tems with ground level 4. low-impedance earthing ? 5.primary earthing system and secondary earthing system what is that? 6.earthing electrode or mesh net earthing electrode ? very confusing , simple but very informative help required ? i will be very very thankful to you guys.
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A 6-pole, 50 Hz, 3-phase synchronous motor and on 8-pole, 50 Hz, 3-phase slip-ring induction motor are mechanically coupled and operate on the same 3-phase, 50 Hz supply. If they are left open-circuited, then the frequency of the voltage produced across any two slip rings would be
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How can we convert dc to equivalent ac??
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