Interested to Buy Any Domain ? << Click Here >> for more details...
why transformer ratings in kva?
- 99 Answers
- 235333 Views
- Bhel, College School Exams Tests, DOW, Emco, Esab, GE, KCP, PGCVL, Sodexo, TCS, vtps, Wipro, I also Faced
- E-Mail Answers
Answer Posted / gk
The difference is that, even though both are electrical
equipments, transformer is considered as a power source
while the Induction motor is considered as a load.
In the case of a power source, you cannot predict the type
of load (resistive, Capacitive or Inductive) that will be
connected to it. Hence the actual usable capacity rating
depends on the power factor of the load.
Power = Voltage x Current x Power Factor
If the load is resistive, PF is 1 (unity) and if the load
is inductive, it will be less than unity.
In the second case (Load), the motor manufacturer gives the
rated voltage and full load current taking into account the
power factor.
Thumb Rule - all AC power sources - Generators,
Transformers, UPS etc. are rated in KVA and all loads are
rated in Watt or Kilowatt.
| Is This Answer Correct ? | 248 Yes | 42 No |
Post New Answer View All Answers
What is the earth treantment procedure?
how to calculate maximum current
What are unstable systems?
What is the difference between diesel generator engine with and without turbo charger with the same capacity?
in general it is observed in power stations, the tertiary winding is used in higher rating Y-Y auto transformer but not in Y-Y power transformer. is the tertiary winding is compulsory then why it is not using in power transformerÂ
What is the effect of positive feedback on stability of the system?
what is the difference between transformer,converter and transducer
What are the internal and external faults?
how desiel generate sart fail of eb?
i have to install a HT panel, what components, I have to use in this and what will the diagram of that diagram,please tell me each and everything.
How we can calculate the life of Lead acid battery
how we calculate electrical load on a building according to area?
When color of silica gel will gets change from blue to pink from Top to bottom?
i want to put single phase load on scott connected transformer,eventhough how to balance the transformer.
how invertor convert the dc into ac give brif detail
