Answer Posted / chirag
Question creats lots of conffusion !
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Define characteristics impedance?
Earth bits close or open. Which is correct
HELLO EVERYONE, I RECENTLY HAVE FOUND ONE PROBLEM, I WAS TAKING NO LOAD TRIAL OF AN HT MOTOR 920 MOTOR , 1440 RPM , 6.6 KV, WITH AUTO TRANSFORMER. AT 450 V, LOAD WAS 40 AMP AND SPEED WAS 250 RPM. BUT AS WE INCREASE VOLTAGE FROM 450 TO 480V, LOAD BECOME 41 AND SPEED REDUCED TO SOME RPM . SO WHICH PHENOMENON ACTED HERE FOR REDUCING SPEED.?? AND IS IT HAPPENING ALWAYS OR IT IS RARE? I ALSO HAVE FACED SUCH PROBLEM WITH FEW LT MOTOR ALSO.
what type of motor used to move a 1 ton gate? and relate ratings with load.
volts=230 c=10mf a=??
Define peak time.
why do you add the load short circuit impedance when considering short circuit amperage. It seems that you should only consider supply. If you need to consider loads and you don't know what loads are to be added , what would be a good sub-transient reactance rating for the loads?
What are the advantages and disadvantages of negative feed back?
How impulse levels are calculated that for 11kV impulse is 75kvp, for 24kV impulse is 125kvp ?
In HVDC LINE RECTIFIER CONTROL ON CONSTANT CURRENT AND INVERTER CONTROL CONSTANT EXITATION ANGLE CONTROL BUT HOW INVERTER CONTROL CONSTANT CURRENT?
How the over load setting for HT Motors calculated-provided in Numerical Relay
what is mean by PIR in circuitbreaker and give me detail of that?
What is the meaning of dedicated earthing?
at work i have a genertor/alternater what is the easyest way to work out if it is dc or ac?
HOW TO SELECT THE COPPER CABLE SIZES OF MOTORS,TRANSFORMERS?