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What is Short circuit maintenance current transformer in automatic voltage regulator?
Wiki User
∙ 12y ago
the SCT is used to provide excitation during short circuit conditions. under Short Circuit the voltage may drop below threshold level causing field current to drop, to avoid over excitation by the AVR, the short circuit provides the excitation energy required to maintain a voltage that allows protective devices to operate and isolate the fault.
the SCT is open under normal operating condition
Wiki User
∙ 12y ago
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How can a delta circuit be converted into a star circuit?
With a transformer...
What is principle of Current transformer?
why does have to short-circuit secondary wire of current transformer ?
What is the reason to use open circuit and short circuit methods to find Transformer losses?
The transformer can be tested on open and short circuit to find the iron losses and copper losses separately, which uses a fraction of the power than having to run the transformer on full-load.
Why does a phase in secondary side in distribution transformer give low voltage?
transformer is busted; if input voltage is normal you have short circuit or open circuit somewhere
Why transformer action can take place in DC circuit?
Not clear what your question is. First of all, circuits are not classified as DC and AC. Circuits are what they are, and you can apply either AC or DC to any circuit. However, considering a circuit that was designed only for use with DC applied. Still your question is unclear. What is transformer action? "Transformer Action" happens in a transformer.
What type of a device is used to increase or decrease the voltage in an electric circuit?
A transformer. A small example is the coil in a motorcar. A transformer, in a power line, only changes voltage in one direction under normal usage. At distribution voltages, about 8360 VAC, the voltage is monitored by a regulator. A regulator either increases or decreases the voltage automatically to insure the desired voltage is steady. This regulated voltage is then fed to transformers to provide customers with a regulated voltage at the desired voltage.
What is the purpose of the transformer in the half-wave rectifier circuit?
what is the function of transformer in the half wave rectifier circuit
What are the purposes of performing no load test for the transformer?
These two tests are performed on a transformer to determine (i) equivalent circuit of transformer(ii)voltage regulation of transformer(iii) efficiency of transformer. The power required for theseOpen Circuit test and Short Circuit test on transformeris equal to the power loss occurring in the transformer.
How can a delta circuit be converted into a star circuit?
With a transformer...
How can a star circuit be converted into delta circuit?
With a transformer...
How will be conduct test on transformer?
Short circuit test and open circuit test are widely used to test the efficiency of the transformer.
What is principle of Current transformer?
why does have to short-circuit secondary wire of current transformer ?
What does P0001 mean on the OBD11 scanner for a 1996 grand caravan?
P0001 Fuel Volume Regulator Control Circuit/Open.P0001 Fuel Volume Regulator Control Circuit/Open.
How to put transformer in a sentence?
A transformer is used to transfer electricity from one circuit to another.
What is the name of device to check automatic circuit breakers Its operation is the following you supply voltage with smoothly or uneven increase till breaker trips. thank you?
It is called a rheostat, it is a variable transformer
What is the reason to use open circuit and short circuit methods to find Transformer losses?
The transformer can be tested on open and short circuit to find the iron losses and copper losses separately, which uses a fraction of the power than having to run the transformer on full-load.
What position in the circuit is a fuse placed to protect a transformer?
In series to every phase winding of transformer.
