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Since phi is the angular displacement between V & I, then why we use phi in power triangle ie. when showing active, reactive & apperent power in triangular manner & if it is ok then where is V & I in the triangle.
1 3793why neutral of 6.6 kv star connected sq. cage induction motor does not get earthed, though for earth fault protection it is must.
7 13574why active power is called as real power or working component.What is the exact function of active, reactive & apperent power.
3 11096How to calculate the diesel generator efficiency? what details are required to identify the running diesel generator sets with 1000 kVA & 180 kVA?
11 91732How a synchronous generator practically work? what is the function of avr(automatic voltage regulator)in synchronous generator?how the connection of avr to the generator made practically?please give me the answer.
6 32467sir& friends i want the collection of recent quetions asked in interview of top most companies please send me on my email san.jsr@hotmail.com
1800why voltage drop if we have connected 230 v ac suplly through diode to bulbe we found haft ie 110 voltage drop why it is
4 7098ON WHAT BASIS LOADS ARE CLASSIFIED AS RESISTIVE,INDUCTIVE AND CAPACITIVE LOADS?.GIVE PRACTICAL EXAMPLES FOR EACH
6 24366Post New Electrical Engineering Questions
HAI SENT HPCL APTITUDE QUESTION PAPER, MY EMAIL ID IS angus_eee04@rediffmail.com,angus_eee04@yahoo.com
Brief working principle of stabilizer,application & safety precautions
What is trip and closing coil in cb? Why need of them
If the rated speed of a d.c. Shunt motor is1440 r.p.m, which method of speed control would you suggested to obtain a speed of 1500 r.p.m?
how does an centrifugal and screw type chiller will work. which chiller efficiency is high and why.
explain the process of commutation in a dc machine. Explain what are inter-poles and why they are required in a dc machine.
Define peak time.
what is cascade speed control device?and how this device control the speed of motors?
how to commissioning the genset with amf panel?
Swg formulae
how to carried out DAR test in 11 KV Alternator ?
what is the difference b/w absolute encoder and incremental encoder?
Is it good to short Neutral and Ground in the PLC or DCS main Power supply. Pls give YES or NO with reasons...? Simarpreet
Define transfer function?
we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.
