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what is the electrical?
What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage
1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to reconfirm its base capacity.
what r substations?what r there work?why voltages r incresed and then reduced during distribution of power
If we need 4c× 50mm sq cable but it's not available so we can pull 4c×25mm sq two cables?
3 shows a 415 V, 3-phase generator supplying a 3-phase 415/110 V transformer. Draw the individual and combined impedance diagrams to a base of 10 kVA. Determine the system fault kVA and the fault currents at the 415 V and 110 V busbars for short circuit faults on the transformer input or output terminals. Work in p.u. values of impedances.
In the magnetic fluxes, what is the role of armature reaction?
While converting delta into star or star into delta ,the three values of resistances remains unchanged .Find out the value?Let In star R1=x;r2=x;R3=x On converting into delta,R12=x;R23=x;R31=x Find the value of x
what is the transiant condition in alternator? and how it can be prevanted?
What is the effect on 3phase induction motor if current setting knob of DOL kept at minimum current?
Differentiate between digital phase converter and ordinary phase converter.
The ripple frequency in output of fullwave bridge rectifier is a. Half the input b. Twice the input c. Same as input
how does ELR works? explain
which of the following elements is not present in stainless steel
A 3-PHASE TRANSFORMER IS USED TO STEP-DOWN THE VOLTAGE OF A 3-PHASE, 11KV FEEDER LINE. PER-PHASE TURNS RATIO IS 12.FOR A PRIMARY LINE CURRENT OF 20A, CALCULATE THE SECOUNDRY LINE VOLTAGE, LINE CURRENT AND OUTPUT KVA FOR FOLLOWING.A)STAR- DELTA.B)DELTA-DELTA.
