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about transformer oil material & Test name for the measurement of its dielectric strength & wht will u do if its dielectric strength goes low ?
NTPC,
2 6682Which Machine u will prefer to use at a place where flammable gases are coming out & why ?
NTPC,
4 6714i Have 1000kva 11/.4 kv voltemp make t/f Its a 2 year old. i wants to known how much iron losses & copper loses during no load condition.
2 4358Can I use cable armour as a earth conductor? if not how many GI/CU wires I need to run along with cable?
1 4321What is the general power factor & min. power rating of TV,LCD type TV, CRt type TV, Scanner, printer?
1996How to know the back up time for a 5KVA UPS which is connected to 15 nos. of computers? Is there any formula for this? pls. tell me.
1 8338Can neutral line also be use as a earthting for distribution transformer, or we need separate earthing pit forh the transformer?
1 5528Post New Electrical Engineering Questions
how to check avr of dg set of 125kva
how pt is using
If a shunt Dynamo has induced emf 100V and 0.4 ohm resistance and battery of accumulator of open circuit emf 110V and 0.5 Ohm resistance are in parallel what is common terminal potential difference?
How to megger test 11 kV cable and the acceptance IR value
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 is the difference between alternator and generator?
if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .
What is the percentage loss for aluminium wire for HT line more than 11KVa
how we do Vector group ,magnetic balance and tap changer test in Transformer?
What is Antipumping Function & If we have C.T how we find the Ratio ?
How is magnetic leakage reduced?
HOW WE KNOW IN PHYSICALLY THE CONTACT SURFACE OF A VACUUM INTERRUPTER IS GOOD OR GOING TO DAMAGE IN A VCB AFTER ABOVE 500 TIMES OPERATED.
direction of tarbine& genrator
Tell me about ur past electrical maintanence job
Define unilateral circuit?
