when we should use Central Battery system and UPS system and
why? in other words, what are the differences between the
two systems?
State angle criterion.
In a ordinary plug can we hold the earth in hane and connect the circuit to supply?will we get a shock?
Why squirrel cage motor can only use with low starting loads ?
In India,we use 230V,50HZ,where as many other countries use 110V,60HZ what r d advantages and disadvantages of each of them?
when a primary current injection test is required, it is accomplished by what?
in an electronic tri vector meter when the current and voltage sequence changes ? what is the effect of phase sequence on recording of meter
how to control the generator output voltage? what r the condition should satisfy for synchronization?
Hi All, I am working as a Technical executive in a MNC company and we have 1500KVA & 1250KVA T/F in our site, can you help me that how many maintenance tests can be conducted and what are the procedures included for the tests can you share yours answers and also give any web address to get more information on this
what is the CT of protection and CT of metering ? what is class 5P10 & 5P20 and class PS ?
16 Answers JEE Main, ONGC, VRA,
what will happen if we use earthing inplace of neutral for domestic energy meter
5 Answers Polyplex Corporation Limited,
why don't we use the generator as a motor? and what will happen?
Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...