Hello friends., my question is related to testing of current
transformer... A Ct having knee point voltage of 750 volts.,
and I have two step up transformer's of rating 230 v to
440 volts., can I obtain the value of 750 volts by using the
two transformer's.... If yes then how could I connect the
transformer's to obtain knee point voltage?? thank you in
What are the applications of different multistage
amplifiers?Plz also write advantages of these amplifiers?
what is earthing transformer? draw the winding dia.of earthing transformer.
what is the difference b/w UHVDC and HVDC(LIGHT)?
How to calcualte the total number of cells required for
particular UPS of some X KVA with 3 and 5 hours back-up?
How much current will a 5 HP delta connected motor at no
load will take?Is tat need a starter
Why squirrel cage motor can only use with low starting loads ?
What is the difference between rated and per unit in
what are the standard IR values should be of R-E, Y-E, B-E,
R-Y, Y-B, B-R of VCB in closed condition and in open
condition for 500KVA & 1000KVA transformers. and what is the
acceptable range when tested by 5000V megger.
What is the pro & con of having 11kv & 33kv incoming, and
what is the adv & disadv. of converting from 11kv to 33kv.
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What is the purpose of stablization resistor in high
impedance bus bar protection
If a transformer primary winding operates at 240v, the
secondary at 120v and the load is 1500w & the transformer
is rated at 92% efficient, what's the current flowing
through the primary winding of the transformer? What is the
formula for finding this?
If there is no problem with the electronic circuit and
regulator then why the motor start rotating at low value of
regulator with full speed both at laod and no load???
and if my judgement of circuit is wrong then what is your
what is the difference between an alternator and a
can we start slipring motor on star delta like we start
induction motor ? if yes where will we connect ?