Amoung all classes of electric machines, why the
transformer uses oil as one medium of cooling?
Answer Posted / iamdon
The transformer has no rotating parts so there is no any
scope of natural cooling through draught.Only option left
is the use of transformer oil as cooling medium.The oil
circulates through fins which cools the transformer.
Other electric machines has a rotating part, which produces
draught.It helps in the cooling.
Author:arbelectbit@yahoo.com
| Is This Answer Correct ? | 6 Yes | 5 No |
Post New Answer View All Answers
What is the meaning of dedicated earthing?
percetans
If a current -8+6sin6t is flowing three ammeter, one is a centre zero PMMC meter, one is true rms meter and one is moving iron meter. What are the reading of these three meter respectively?
why asa method ZPF method is more accurate than ASA method?
EXPLAIN WHY THE SURGE CURRENT RATING OF AN MCCB OR CIRCUIT BREAKER DECREASES WITH INCREASE IN THE RATING OF MCCB OR CIRCUIT BREAKER.
Can anyone please give me the parameters , formula needed to calculate the circuit breakers for building services.Thanks
What is voltage divider rule?
why the making current is more than then the breaking current and if its true then its about a controling circuit or breaker power contact points
I have motor of 3 H.P. How i found the rating of capacitor use in it in single phase motor..???
hi, in the event earth grounding is not available in a project, is there any other way to make the elcb work? fyi, i have an instant water heater (6.5kw) installed, however if there is grounding in the heating element inside the heater assembly, i will get grounded. thank you in advance to those who will answer my question.
what is the ground fault relay,which purpose it will be use,clearly tell me plz
1.Can we use 6.6/11KV 300sq mm xlpe 3core cable for LT use (415 Volt). 2. If we use it for LT then what is the current rating
What are the advantages of speed control using thyristor?
Can we use 230VAC, 63A MCB for 120VAC, 63A supplied heaters load?
What are dcs and plc?