Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / mrityunjay pandey
phase in electrical engg means the angle which is made by one vector (say-current) with respect to a base vector (say-voltage)..as we know in inductor current lags voltage ,so we take voltage as reference and measure the angle made by current phasor,suppose we got 30 degree angle .then the power factor i.e. cos (PHI)=cos(30 degree)=0.866..similarly current leads voltage in capacitor..
| Is This Answer Correct ? | 7 Yes | 4 No |
Post New Answer View All Answers
What are the causes for the failures of sandwich type (Al) busducts?
what is transistors comprised of?
what is difference between window type and wound type transformers?where we will use window type and wound type transformers?
What are the specifications for conducting earth leakage test as per IEC standard?
What is meant by analogous system?
what transformer we used normally and upto which kva?
Can we check ELCB constantly from R1 to R8 phase in 1 no DB?
what is meant by residual over voltage & residual earth fault ?
A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?
In parallel operation time both NGR’s close or not close if both close what will happen
why the arc welding machines require parallel earthing systems? ie why each machines are connected to earth pit by separate wires during earthing? wats it adavantages?
what is the current density of copper & alluminium.
DG SET BLOCK DIGRAM
why the perameters of secondary circuit are more important then that of the primary circuit of induction motor?
what is PWM in IGBT and how it works for drive.?
