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Why AC & DC capacitor are use in UPS ??????????????????
Why 11kv to be generated in generation station
What should be setting for alarm,tripping and cooling fan on for power transformer's oil temp. and winding temp. indicator?
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 will happen if we introduce negative feedback to a control system that uses a positive feedback?
If a high resistance fault occurs,then what are the changes will happen in the system?
Whether the vacuum contactor requires Short circuit protection?If No,why?
WHAT ARE THE DISADTAGES OF SINGLE-WIRE-EARTH-RETURN SYSTEM USED FOR RURAL ELECTRIFICATION?
Which capacitor is preferred for high voltage and frequency?
salam&hi, i need to know about how can i calculate an enough current for the new building before i submit it to the suppliers
IF TVM OF TRANSFORMER SHOWS POWER FACTOR ON 33 KV SIDE AS 0.97 LAGGING AND ON 132 KV SIDE IS 0.75 LEADING.IS THIS CORRECT.WHERE IS PROBLEM.
Define active filter?
Why lose 1 phase voltage in 33kv to 415v stepdown transformer
In siemens PLC, why do we want to move the data ?
Why does the Solid state Rectifiers for 3-ph brake motors sometimes have 2 & sometimes 3 output terminals?
