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In Railway,why we are used HT Line 25KV ?.why we are not used 11KV,33KV and others for This?
37 46541why dont we connect the two 12 V DC batteries in parallel, for an inverter (UPS)? is there any harm ?
6 9368will we have to design the UPS differently for both i.e. if we want to connect the two batteries in parallel and/or we want to connect the two batteries in series ?
4 6999in a 740 kw dc seperately excited motor field voltage is constant about 17.4 volts and armature voltage is500 volts dc. how it is possible to have two different voltages from single transformer of output voltage 500 volts? if any difficulty in question contact ajitsingh.kadian@gmail.com
1 4472IS there any mechanical connection between the field winding and armature winding of a dc generator?
IOCL,
11 16608Post New Electrical Engineering Questions
Why only sinusoidal ac voltages are generated?why not triangular or sawtooth?
I am having a 1500 KVA transformer whose secondary current is 2086A and my connected load is 1000 KVA, I am having 400 KVAR APFCR for PF improvement what ratio of CT should i install in LT EB Bus to get optimum PF improvement?
what is the need of starter in tube light and what type of starter is used in that?
What is the power factor of a transformer at no load?
Can anyone tell the proper diagram of star delta starter????
What is the distance between body earthing and neutral earthing.?
I'm looking for a softcopy manual set for a Credence ASL- 3000. Anyone know where I can get it?
In a power conditoining unit (inverter) of a solar plant when we measure the d.c. current fed by different strings of solar plates to inverter, the current in the negative wire is less almost by 1 ampere to the current in its positive wire say current in positive wire 5 A , then current in negative wire of the same string is 4 A. Since the current entering should be equal to current leaving then why the current is noticably less in negative wire.
In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes
how we can come to know that motor winding resistance which showing by DMM is right or wrong???is there any chart or something that we will compare & check???
HOW TO WORK A VFD?SAY SIMPLE METHOD
In a Impedance Based Distance Relay (Quad Characteristics) - Could there be two different Line Angle(RCA) for Ph-Ph & Ph-Gnd? If So Kindly Let me Know.. Where, What are the advantages of the same?
Battery is a voltage source? give one example of current source and why?
Can any body tell me about INNER SHUNT COMPOUND MOTOR diagram?
What is Traction? 1KVA Alternator, How much urrent taken?
