Answer Posted / ganesan
i=v/(r+jx);x=2*3.14*f*L;
In case of ac it has 50hz frequency .so both the reactance
x and r resistance is available.In case of Dc it does not
have frequency .so reactance is zero and resistance in the
circuit is very small.
i=v/(r+0);so DC power taking more initial current .it may
burnt out the transformer windings.
| Is This Answer Correct ? | 6 Yes | 1 No |
Post New Answer View All Answers
hai...... tis is Hemanth. jst now completed electrical engineering... i wanna to apper for ap tranco exam... plzz send me the previous q's paper link......thanx in advance.
why Lightening Arrester Probe sharp at Top of telecom tower.
how does grading rings & spacers in transmission line works? Working Principle?
how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test. why transformer rating in always in KVA ? what ispositive, negative, zero sequence impedence? How ElCB tripping if Neutral touch with ground Why AC & DC capacitor are use in UPS ? why motor rating in KW? how to syncronize two dg sets
how to enter inverter parameter? without manaual?
The advantages of Magnetic flux leakage technique over Ultrasonic technique for non distructive testing of material.
which protection used in power plant?
3phase motor can be used as a Prime mover for alternator.
how to calculate current carring capacity of cable and cable selection? 1) copper flexible cable 2) copper armoured cable 3) Aluminium cable
Is it possible to download the Siemens Selection Chart(TYPE 2 coordination) for 1) fuseless selection 2)Fuse selection
8. A DYNAMOMETER TYPE WATTMETER RESPONDS TO THE.......
raleigh method
What is the formula for calculating impedance of transformers connected parallel at fault level 50KA?
Can I use star delta connected induction motor for dual supply voltage?
what are the basic insulation levels & what its Unit