Why induction motor can not be operated at synchronous speed?? what would happen if it is operated at synchronous speed??
5 23983sir, i want to know the calculation for find rated current for cable sizes.(both copper & aluminium) with examole. please sir for example: 35sq.mm al.cable is withstands for how many amps? is suitable for 45kw motor?
L&T,
5 10745Why the output of generator varies eventhough the shaft speed is constant in thermal power plant?
5 5596how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
SISL,
1509Post New Electrical Engineering Questions
what is zinc diffusion?
how to select the mpcbs and contactor for 3 phase 30 hp star delta motors.for plc control.and tell me the calaculation for future use.
Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example?
What will be the voltage impact on secondary side of two transformers with different vector groups when both voltages are compared.
From what on-site components does the HT panel monitoring the bus-bars in a 11kV system take inputs?
What is the practical way to calculate the cable size for known ampere load?
What is the diff. between single compression and double compression gland
A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
how will calculate the safe starting current of 3-phase squirrel cage induction motor?
Dear sir, I have completed DECE in the year 1995. I have work experience in HT and LT LINE more than five years. Now i am doing BE in EEE from rajasthan university. After completion of BE,can i apply "C" Licence sir? Please reply.
can i use 4 number of circuit breaker as single phase manual change over switch? if yes then how plz also send ckt diagram at nazimzamurad@gmail.com
How much load can be taken for chiller from 1500 kva transformer
why the difference arise between HT reading & LT reading (submeters fixed in complexes, apartments etc)if the power factos exceed from 0.9 to 1 can the ht meter reads fast?
what is the difference between general inverter and solor inverter clerly explain plz
What do you mean by a current transformer?