why t/f are rated in kva. is it conserned with p.f.
Answer Posted / amit rajak
The transformer is rated in KVA because its efficiency
actully depends on its losses.
and it is known that there are two main types of losses
that occurs in transformer.
They are as follows.
1.iron losses oer hysterisis losses
or Electromagnetic losses
2.copper losses or eddy current losses.
1. iron losses- it generrally occurs at the
windings that is made of copper as conductor and are under
operation . at all the loads and are rated in current
losses.
2. voltage losses-these losses generally occours at
all the time whether at load or not load conditions
so it is clear that this to parameters current and voltage
decides the overall efficiency of the transformers.
and also as the transformers deals with the poiwer in kilos
so it is rated in kilo volt amperes
Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Why control of DC motor is simpler?
Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?
What is expention fastener (Fan)
What are the two basic types of transformers?
What is the use of lag compensator?
what are the ''pitting rings''and how cn they be controlled in a series generator
Which cable is use for rtcc control panel
how can maintain the power factor and why and this is how do work tell us
What happens to a line-frequency of high-frequency transformer when it is first energized/ re-energize?
In a synchronous motor. if start is running at high speed. What will be the starting torque : Higher Lower Zero
how can we select the appropriate VCB ?
What are the types of power in electrical power?
what are the main applications of transistor in non-linear region?
Can anybody post questions asked in Engineers India Limited Interview? Thanks in advance.
before transformer oil dielectric strenght tests are taken the oil should be allowed to settle to remove option 1 air bubbles 2 gasses 3 contamination 4 water