Why the rating of the HT breakers are in 1250 Amp, while
the load on the breaker is around 50 Amp. ?
- 9 Answers
- 22210 Views
- Wipro, I also Faced
- E-Mail Answers
Answer Posted / sobhuza, za
It's because the equipment is rated based on the capacity
levels and not at loading levels. CB ratings are
standardised, as it may happen that the loading on one
circuit is 50A, but on another it can be 900A. So for
rating purposes it is better to standardise at say 1250A so
for ease of procurement. Remember that when the load
increases over time and you won't have to change CBs due to
loading increase.
| Is This Answer Correct ? | 11 Yes | 16 No |
Post New Answer View All Answers
What must be the minimum distance maintained between 2 Generators as per International standards?
What does a Bode plot tell you?
An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The rotor reactance at stand still is A 2 ohm B 1.25 ohm C 3.15 ohm D 2.25 ohm
how to find number of run cable laying[LT side] for transformer & alternator secondary side? [above condition for getting output power transformer to main panel side] give the example.
send me any model test paper of clerical post of state bank of india.......
Why the magneti fields are not passes from southpole to north pole
for a 400kv t/m line with 10 ampere current will corona occur?
Name the types of motors used in vacuum cleaners, phonographic appliances, vending machines,refrigerators, rolling mills, lathes, power factor improvement and cranes.
i am completed diploma in ece,and working in ht and lt lines.so is elligible diploma in ece for get electrical C Licence?plse give ur opinion?
what is the method of earthing of a transformer using electrodes?
Explain about retrofitting of machine tool.
What type interview questions ask in Electrical technicians
how much allowable resistance that can be difference in motor all coils?
What do you mean by dependent and independent voltage sources?
what is effect of leading power facter on the system and billing
