Why 60Hz frequency is used in America what are all the
benifits?
Answer Posted / praful nandankar
due to decrease in losses at 6o hz.
| Is This Answer Correct ? | 0 Yes | 4 No |
Post New Answer View All Answers
Why do we need interlocking in a HT metering or Ring main unit switchgear?
HOW TO SELECT THE COPPER CABLE SIZES OF MOTORS,TRANSFORMERS?
what is meant by vector group of a transformer? How can it be derived?
Why space heater is required for each verical bus bar chamber? if one space heater is adequate or not for anti condensation?
What happens if we connect a single phase energy meter in reverse polarity.
how we do Vector group ,magnetic balance and tap changer test in Transformer?
Draw the wave shape of armature current in a generator subjected to a sudden three phase short- circuit at its terminals. Define various reactance of generator from this wave shape.
what is the preventive maintence for ht panels and busbars and vcb abd acb's.
What is meant by reactance voltage?
there are cam operated switches - why we call cam operated , What is cam ?
How to do cable sizing calculation for 750 A Neutral Earthing resistor for 33kv. the 33kv cable going to swbd. is 630mm2 3 runs.
Is it good to short Neutral and Ground in the PLC or DCS main Power supply. Pls give YES or NO with reasons...? Simarpreet
at work we have a 3 phase motor but on testing one phase isnt getting a reading. it runs 24 hours a day all week. stops and starts well no noise or heating. the phase isnt down to earth.is it just a bad meter reading or not? phases one and three came up with a resistance reading of 0.4 but phase 2 couldnt get anything shows up as open circuit.
What is difference and reason b/w -48V BTS system and 24 V BTS system. Plzzzzzzzzz tel me.
What will happened if the neutral of secondary of Xformer ( Star point) Note it's above KVA rated Xformer