What is the meaning of capacity of a 63 Amps TPN MCB? Is it the per phase capacity or the totol capacity?
1 14349Give me the calculation steps to design an electromagnet to be work in 230V 50 Hz AC Supply. Also give force that is created by that electromagnet when it gets energized.
GE,
21793 shows a 415 V, 3-phase generator supplying a 3-phase 415/110 V transformer. Draw the individual and combined impedance diagrams to a base of 10 kVA. Determine the system fault kVA and the fault currents at the 415 V and 110 V busbars for short circuit faults on the transformer input or output terminals. Work in p.u. values of impedances.
2621I have a drawing of a wound rotor induction motor for a crane. This crane motor has 5 forward speeds & 5 reverse speed implemented of course with different amount of resistance for each speed setting selected. What has got me scratching around is the fact that 8 of the 10 speed selections switch in uneven (unbalanced) amounts of resistances on each of the 3 connections to the motor's rotor.Can this be possible? I would have assumed this would produce unbalanced rotor currents and therefore vibration in the motor. I would greatly appreciate anyone's comments on this. Many thanks, Confused.
1830What is the kiosk parts, about them and their functions ? If anybody have some PDFs files or details about this plz send it on tawhidfaisal@Yahoo.com
1845Post New Electrical Engineering Questions
What is the difference between a 3 winding and 2 winding Potential Transformer
how can we design robots
Why corona leads to production of Ozone and glow of the color VOILET?
What is the minimum value of hfe for the oscillations in transistorized rc phase shift oscillator?
Is MEN and RCD related to each other ?? IF yes then how??
what happen if generator of micro hydro running at only a small percentage of its capacity, as a comparison, if the diesel generator that runs on only a fraction of its capacity there will be a wet stacking
how to synchronize 3 phase slip ring induction motors of different ratings.
what questions will be asked for 11/33KV licence interview APSEB hyderabad. Can any one share question and answers.
What are protections for dty type transformers
How to know Resistance and Reactance value of main and aux winding of single phase capacitor start capacitor run induction motor to find capacitor value?
Disadventage of cable-gland earthing if any ?
DERIVE AN EXPREION FOR MAXIMUM POER TRANSMISSION, WHAT ARE ITS APPLICATIONS.
why are installed water leakage detection system data centers & server rooms
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.
what are the installation procedure of high voltage power transformer,CT,CB&PT?