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Is wattmeter reading under no load test is equal to iron loss of the transformer?
Wiki User
∙ 8y ago
Yes; that is the principle used in no-load tests on Transformers. The current in the copper windings is zero on the secondary and low on the primary, so the copper loss is negligible.
Wiki User
∙ 8y ago
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Is the power transformer switched off under light load conditions?
No, the transformer has to supply the load, whether it is light or heavy.
Difference between potential transformer and current trasnformer?
The difference between current transformer and potential transformer is that the secondary of a current transformer can not be open circuited while under service whereas that of the potential transformer an be open circuited without any damage to the transformer.
What is percentage of transformer loss at no load condition?
major component of power loss in a transformer is secondary resistance.when transformer is operated under no load,no current flows through the secondary.so under no load conditions transformer has just very small megnetic losses.
What liquid is inside a filament transformer?
The predominate liquid used inside a filament transformer is mercury. Mercury is used to keep the transformer cool when under heavy use. Mercury is a cheap and long lasting liquid.
Can you applied the voltage to neutral of the transformer?
The neutral of a transformer is usually grounded. Under this situation, this question is the same as asking whether you can apply a voltage to ground; the answer is yes, but I don't know why you'd want to. Sometimes transformer neutrals are insulated away from ground. If this is done, then you could inject "backwards" from the neutral up into the transformer. Again, I don't know why you would want to do this, though.
Is the power transformer switched off under light load conditions?
No, the transformer has to supply the load, whether it is light or heavy.
Difference between potential transformer and current trasnformer?
The difference between current transformer and potential transformer is that the secondary of a current transformer can not be open circuited while under service whereas that of the potential transformer an be open circuited without any damage to the transformer.
In the event the transformer overheats and the transformer high temp illuminates the secondary distribution center can not be used under any circumstances?
False
What is percentage of transformer loss at no load condition?
major component of power loss in a transformer is secondary resistance.when transformer is operated under no load,no current flows through the secondary.so under no load conditions transformer has just very small megnetic losses.
What liquid is inside a filament transformer?
The predominate liquid used inside a filament transformer is mercury. Mercury is used to keep the transformer cool when under heavy use. Mercury is a cheap and long lasting liquid.
Is it impossible to make a transformer?
It can be possible to make a transformer if we get the technology to do it in the future..that is a good question by the way...my answer is based on the tags you tagged this question under...Transformers movie.
What is the word for reading under the covers with a flashlight?
covert night reading
Difference between off load transformer and on load transformer?
Hope this helpsAn "OFF-Load tap transformer" can only have it's tap adjusted when it is De-energized,while the "On-Load tap transformer" can adjust its tap under load conditions.Kind RegardsHammad KhanUniversity of Western AustraliaAnswerAn 'off load' transformer is one whose secondary is open circuited, and not supplying a load. An 'on load' (not 'load') transformer is one that is connected to a load.
Does the secondary feeder of a transformer need to be rated at less than the main breaker of the feeder supply panel?
It depends on the situation and how you are utilizing the transformer. Under certain conditions the secondary does not need to be protected. The protection on the primary is enough to protect the secondary side of the transformer.
When a two winding transformer is connected as an autotransformer its efficiency under full load is?
remain same
What are the Causes of phase angle error and ratio error at Current Transformers?
RATIO ERROR The secondary current is less than the expected value. The secondary is less in magnitude. This diffence is known as ratio error. PHASE ERROR The angle between the expected and actual secondary current is known as phase error.
Should you wear your reading gasses all the times?
Reading glasses are meant for reading. There is no benefit to wearing them under circumstances other than reading.
