Explain why machinery used on a.c supply is usually rated
in KVA instead of KW?
Answer Posted / bhanu pratap pal
Because the power factor of the machinery is not a constant
parameter i.e. it varies with the change in the supply,
hence the rating of machinery declares in KVA.
| Is This Answer Correct ? | 4 Yes | 10 No |
Post New Answer View All Answers
hi there i am highly enthusiastic about discussing electrical concepts , and hence i wud lyk to invit al do intrested to join me at gtalk and hav a dscussun of the concepts , ad me as a freind . my email id is rakesh.2k99@gmail.com
how the speed of the gets motor regulated. does it draw the same current on the all speed level.
What would be the size of wire used for 2 Ton of window A.C?
What is stepper motor. What is its uses?
On a 6 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 42 AH). What Shall be the current rating of DC MCB ?
A 3-phase IM is supplied from 50 Hz system. It runs at speed of 1440 rpm and slip equal to 4 %. Calculate number of pole pairs. A 1 B 6 C 2 D 3
what is the function of choke in the flourcent tube lights and why the colour is in white mostly in flourcent tube lights
why we are not giving the zone 1 trip command to the master trip relay
how to define tell me about self
1)How much current can a 3-1/2 core 100 mm wire carry? 2)What are the special cables required for explosion proof wiring? 3)In case you do not have coal and salt for earthing, how can you achieve good temporary earthing? 4)One horse power single phase motor is more likely to get hot than a one horse power 3 phase motor. Is it true or false, if true why? 5)What are the different types of soft starters for large motors?please explain?
What is force on a conductor in a magnetic field ?
In a voltage-controlled current source A A current booster is never used B The load is always floated C A stiff current source drives the load D The load current equals Isc
how is capacitor bank look like
# 4 hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible my email id is sumit_lig189@yahoo.co.in
what is acceptance test in electrical engineering.