why does chattering take place in ac contactors? can it be avoided & what care does the manufacturer take to eliminate this phenomenon????
10 42989what will happen if the bus PT fuses are accidently removed from the circuit in 6.6kV feeder?
1 3273why is it that the HT motors & motors having very low kW rating(<1kW) have windings connected in STAR, whereas the motors having in between kW ratings have DELTA connected windings??
5 6151which are the criterias needed to select the kind of neutral earthing(solid earthing,resistance earthing,etc.) at various voltage levels in electrical distribution?
719How maesure earth neutral value & how much maximum value value required in between earth & neutral.
831THE 40 MW OF POWER FOR 220 V III PHASE POWER CONNECTION REQUIRES HOW MANY KVA POWEER REQUIREMENTS
7 5575In DC generator, we use commutator, having no. of segments. Then how it is possible to get a half wave of voltage and current for half rotation of armature?
756Post New Electrical Engineering Questions
what is the illumination level required for child play area?
When electric field is parallel to the plane of incidence, the electromagnetic wave is said to be a.Linearly polarized b.circularly polarized c. Elliptically polarized d. Hyperbolically polarized
Hi everyone. Some Generators uses 3-Pole breakers with extra contactors for Neutral. Some uses 4-Pole. Why so? What is the idea behind this? Thanks in advance for the solution. Kr.
What is the effect on power factor, shown by a trivector meter; incase of reverse phase sequence. If the power factor of a system is lag what meter will show in case of reverse phase sequence connected to the meter. and What in case of lead.
why co incidence factor considered in transformer sizing?
I WANT BHEL PREVIOUS QUESTION
Distinguish between nuclear power station with thermal power station for initial cost, starting period, cleanliness, and transportation of fuel
any idea abt REVERSE METERING concept.........?
The transmission does not have options: a)Partition noise b) Flicker noise c) resistance d) Short noise and reason
WHAT IS MEANT BY OVER EXCITATION IN GENERATOR TRANSFORMERS? DESCRIBE IT.
What is the percentage loss for aluminium wire for HT line more than 11KVa
can you plz send l&t aptitude questions if available its urgent plz plz plz
What kind of maintenance is conducted for Transformer
what is invertor supply and raw powersupply
On 400 amp factory load how kvarh capacitors provide
