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Why we are use 11KV / 22KV / 33KV / 66KV / 110KV / 230KV / 440KV this type of ratio. why cant we use other voltage ratio like 54KV / 99KV et.,
College School Exams Tests, Hino, ITC Infotech, Reliance, UPRVUNL,
8 31792From the point of view of accuracy in the Measurement of Electrical energy should we select a potential transformer or a capacitor voltage transformers?.Kindly support your reply with reason and justification.
1 3890HOW DOES ONE SELECT A TRANSFORMER PHASOR GROUP IE, WHETHER A STAR-DELTA TR OR A STAR-STAR OR A DELTA-DELTA, ETC. TRANSFORMER IS MORE SUITABLE FOR A PARTICULAR KIND OF LOAD OR WORKING CONDITION???
3 76641. what is the power factor and whatis his losses 2. what is the working procedure of 51RNB AND 87 relay
ABB,
3 6230When geneartor is running in poor lagging side power factor its excitation current increases then it is running in improved lagging side.Kindly tell me when gen is running in leading side what will happen
3 6575in slip ring motor if motor specification is given how we calculate its rotor resistance in starting
1 4891If single phase voltage level is 230V than why three phase voltage level is not 660V ?, but it is only 440V.
16 74592Post New Electrical Engineering Questions
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
Why slip ring ind. motor power consumption is low compare to induction motor .same 90 kw motor used same load output
is that any software calculator to calculate the size of cable
The specific heats of the gas at constant pressure and constant volume are respectively 1.0 kJ/kg K and 0.72 kJ/kg K; the value of R for the gas is
sir,in our plant we r using SATEC PM172E power reading meeters in HT panel side it is monitoring the MB data smart viewer(sever).but last one week we did not get readings inthe server only available in meeter.tell me how communicate meter and server. and also what steps we take for checking.
For high frequency application we use which transformer?
how to operate and maintenance of 1500 kva diesel generator set
what is meant by 2 within a star in a voltmeter dial?
According to IEC60034-14, When the vibration monitoring system required for motor Bearing. above which KW, it is required? and for what type of bearing the vibration probe is provided.
HOW MUCH CURRENT DOES SYNCHRONOUS MOTOR TAKES AT SYNCHRONOUS SPEED IN NO LOAD CONDITION ?
Can we use both Electrical & mechanical interlock between tow breakers? if yes how, please explain
What will happend if given Vfd out put to step up transformer
i am going to attaned the engineer (disign)iterview at HAL please give me duid line
Why efficiency of generator is higher than motor at a particular load?
Why phase sequence must be same in any ht motor or generator circuit?if phase sequence doesn't same whatever will be affect on circuit?
