why transformer are rated in KVA not in watt?
Answer Posted / karthik_elec
KVA*p.f = KW, the power factor is depaending upon the load, what load we going to give we dont know, thats y transformers normaly rated in KVA, but for testing purpose we can assume p.f is 0.8 ( induction machine average p.f)
Is This Answer Correct ? | 1 Yes | 8 No |
Post New Answer View All Answers
why the starting voltage drop in a cable needs to be limited?what is percentage of the voltage drop allowed during starting?
what is the difference between rectifier and converter and commudator?
When will you multiply and devide with derating factors to the actual value while sizing the cable?
Explain the different methods used in the choice of rotor slots for reduction of harmonic torques in an induction motor.
what is the method of earthing of a transformer using electrodes?
what are different types of electrical windings? i know the distributed winding ,concentrated winding etc but i want some detailed information, in what condition we will use distributed,concentrated windings what are the difference between them which is best, how induced emf changes by using different types of windings 20 hours ago - 1 week left to answer
What are the advantages and disadvantages of the dc motors?
What is the difference between voltages or potential difference? And what are they?
can mini-curcuit supply MIL-tested transformer !
how you configure motorvision relay (L&T make)from DCS
Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?
Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??
when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??
WHY TERTIARY OF POWER TRANSFORMERS IS LOADED WITH EQUIPMENTS LIKE CT,PT,ISOLATOR AND CB
How would you calculate power loss in a resistor?