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When 2 turns of an inductor or transformer short together.
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∙ 11y ago
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Why you do insulation resistance test?
in order to avoid unwanted short circuit break downs.... short circuit can burn the transformer and motor winding.... Megger is the device used to check the insulation .
When a transformer winding suffers a short circuit the adjoining turns of the same winding experiences?
A short circuit between adjacent turns of the same winding will cause the turns ratio of the transformer to change. A short circuit of this nature may not cause the transformer to become disconnected, so the situation could last for a long time. In larger utility transformers, the gases formed by the arcing between turns will collect in the Buchholz relay, situated between the transformer and its expansion tank, which will then initiate an alarm inside the substation.
Does the winding of voice coil need to varnish?
It can be bare (without varnish) but they should not touch each other as this will create a short circuit.
What are the major causes of loss of excitation on generators?
The major causes of loss of excitation on generators are due to an open circuit or a short circuit in the field winding. This may also be caused by a breakdown of the insulation system.
Why is the shunt field resistance greater than the series field resistance?
In case of series winding total line current is flow through it.line current is very very high.so,to minimize the drop the winding made as low turns and low gauge.hence the resistance is low.in case of shunt winding high resistance winding is used otherwise short circuit the parallel winding.for that winding is made as heavy turns and heavy gauge.
What is a Winding-To-Ground Short Circuit?
No
What will happen to the transformer if the rated voltage is applied to the winding during short circuit test?
the winding would burn....
Why induction motor is also called short circuit transformer?
Like transformer induction motor has stator winding(Primary winding) and rotor winding(Secondary winding) separated by an airgap.Rotor winding(generally Al bars) are short circuited at the end to produce torque for the rotation.Hence the name short circuited transformer.
WHAT STOPS a transformer windings FROM BEING A short circuit?
The transformer winding is a short circuit to DC. But for AC, the impedance of thecoiled winding and the magnetic coupling to another winding have the same effecton AC as resistance has in a DC circuit. That's why transformers don't work withDC, and are always operated with AC.AnswerIf you are querying why there are no short circuits between individual turns, it is because the windings are insulated not bare.
When a transformer winding suffers a short circuit the adjoining turns of the same winding experiences what force?
Both radial and axial forces.
How do you calculate short circuit capacity of generator by using reactance of the winding?
(Generator kVA / Subtransient Reactance % ) / (1.73 x Voltage) = Short Circuit Current in kA
Why you do insulation resistance test?
in order to avoid unwanted short circuit break downs.... short circuit can burn the transformer and motor winding.... Megger is the device used to check the insulation .
Why don't AC input wires to a transformer just short circuit?
The resistance of the winding in the primary of a transformer constitutes a load. As long as there is resistance then there is no short circuit. A short circuit is considered no resistance which develops an instantaneous high current. That is why fuses and breakers are inserted into the circuit to open the high current flow under a short circuit condition.
What is inter-turn fault in three phase motor?
An 'inter-turn' fault occurs when adjacent turns of the same winding are short circuited (due, for example, to insulation breakdown). This affects the turns ratio of the transformer. An 'inter-winding' fault occurs when there is a short circuit between adjacent windings (coils) due to insulation breakdown, and can lead to a catastrophic failure of the transformer.
When a transformer winding suffers a short circuit the adjoining turns of the same winding experiences?
A short circuit between adjacent turns of the same winding will cause the turns ratio of the transformer to change. A short circuit of this nature may not cause the transformer to become disconnected, so the situation could last for a long time. In larger utility transformers, the gases formed by the arcing between turns will collect in the Buchholz relay, situated between the transformer and its expansion tank, which will then initiate an alarm inside the substation.
What is a high voltage circuit primary circuit secondary circuit tertiary circuit?
The terms 'primary', 'secondary', and 'tertiary' winding has absolutely nothing whatsoever to do with voltage levels. The primary winding is simply that winding connected to the supply, while the secondary winding is that winding connected to the load. The voltages of these windings depend on whether you are dealing with a step-up or step-down transformer.
Does the winding of voice coil need to varnish?
It can be bare (without varnish) but they should not touch each other as this will create a short circuit.
