which is dangerous AC or DC?10 6031
what is diffrential relay used in generator plz give brief explanation4 3104
We wish to test 60 Hz systems from a 50 Hz supply. To acheive frequency conversion, we use a VFD. The VFD powers 40 kVA transformer, which has motor and non-motor loads on it. Will the transformer work?2 3572
what is the form factor of DC?6 3778
what happens when parallel resonance occurs?2 2376
what is LOS(line of sight)?1 2239
what is VSWR?1 3077
what is servomechanism?1 4286
What is minimum permicible value of leackage current for LT Panle when applying voltage up to 3 KV for 5 Minuits?
why do we not use equivalent voltage source in negative sequence equivalent ckt.
An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The rotor reactance at stand still is A 2 ohm B 1.25 ohm C 3.15 ohm D 2.25 ohm
what is through fault?
How many types oil using in transformer ? How many letars using in transformer..?
what is meant by rotating magnetic filed
what would happen if reactive power (kvar)is increased (more)or decreased (less)? how much exact reactive power should be maintained? and what should be done for that
Why 1/3 is used in symmetrical components?
can we conduct the swineburne's test on a dc series motor? why?
3 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.
ult of expression 'document.FrmQF.myem
WHAT IS ELECTRICAL MAINTAINTENCE ?
Please clarify 1. Icw: rated short circuit working withstand capacity 2. Icu: Rated ultimate breaking capacity 3. Ics: Rated service short circut withstand capacity 4. other specification of ACB
what is transient enclosure vltage , very fast transients, very fast transient over voltages
how dose servo motor works