1. Why transfomer reting in KVA and Motor in HP
Answer Posted / david wilson
By convention:
Power supplies are rated for their capacity to output power and are rated in VAs or kVAs.
Loads are rated for their power consumption and are rated in hp (In Europe they would be rated in Watts or KW as metric units).
For the purposes of ratings, transformers are rated based upon their ability to supply power to a load and so are rated in VA.
A 1kVA transformer can drive a motor of up to 1.34 hp (1kW).
Note: It the transformer was rated by the power it consumed (the losses when 1KW is drawn from the output) it would be more difficult to figure out what size of transformer you need to drive your 1.34hp motor.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
in single phase converter, the no.of scr's conducting during overlap a)1 b)2 c)3 d)4
how to test reverse power trip?
How many types of colling system it trformers?
how to select proper cable for ct wiring so that drop within the limit.
What is the criteria for selecting the voltage classes of an AC Induction Motor.The KW rating above/below which ht/lt selection is made may be provided in details.
What are the necessary components of the feedback control system?
An ISP is granted a block of addresses starting with 150.80.0.0/16. The ISP wants to distribute these blocks to 2600 customers as follows. a) 200 medium size businesses; each needs 16 addresses b) 400 small businesses; each needs 8 addresses c) 2000 households; each needs 4 addresses Design the subblocks and give the slash notation for each subblock. Find out how many addresses are still available after these allocations.
what is the correct format to create a resume for interview??
how to calculate the magnetizing current of ct ( 800A/1A) for Relay 64
what is the basic construction diffrance between servo motor ans sqiralcage induction motor
why transformer ratings in kva? & DG ratings in kva? & Motor ratings in kw/HP?
What is the differance between 2 dc motors of armature voltage 660 v and 440 v?
what is tri state logic gate
what is smartµ grid technology?under coal gassification?
How colour picturetube works & how many year it will works.