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What will happen to the primary winding if the secondary is shorted?
Wiki User
∙ 12y ago
If the secondary is shorted, then it will appear that the primary is shorted as well. What happens depends on how well the protective device (fuse or circuit breaker) and transformer is designed. If the protective device is incorrectly designed, it is theoretically possible for the transformer to explode. If it is properly designed, and the transformer is also properly designed, there should be no damage at all - fix the fault - reset the trip - and you are back in business - although an inspection would probably be in order to check for latent damage.
Wiki User
∙ 12y ago
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What will happen to the transformer if rated voltage is applied to the winding during short circuit test?
If rated voltage is applied to Transformer during S/C test, The secondary winding will burn out due ta heavy current flow through the winding. During S/C test the secondary winding is short circuited so the impedance between phase and neutral is very low(only winding resistance). But the voltage across the secondary winding is rated hence heavy current flows through the winding, as I=V/Z. it depends which rated voltage is applied. if you are talking about primary winding voltage, transformer should withstand the primary rated voltage it's been designed for (OR it has been poorly designed). Otherwise, if rated voltage is the insulation voltage between a winding and earth OR winding-to-winding, you just have to check if: 1 - it is higher than the maximum primary winding voltage the transformer can withstand (could be, could not be..). Then, you can guess if your transformer is likely to burn or not. 2 - your test setup (usually a HV generator connected between primary and secondary winding) can deliver the requested current for the setup. I guess this won't be the case, since HV testers are usually designed to generate high voltages, but very small output currents.
What happen if the number of loops in the primary and secondary coils in a transformer are the same?
If the number of turns in the primary is the same as the secondary, this would be an isolation transformer. Primary and secondary voltages should match (minus the inherent transformer losses), as should the current.
What would happen to the output voltage if the capacitor were shorted?
it would get a lot of voltage
Why the secondary of the current transformer should not be open circuited?
The secondary of a CT must always have a load connected. An open circuit secondary can result in the development of a dangerously high secondary voltage. If a CT is energized but is not used, the output terminals of the CT must be shorted out.
What must happen for an electric motor to spin?
suitable winding and correct power supply
What will happen if you give DC input to the primary of a transformers?
If DC voltage is applied to the primary of a transformer the flux produced in the transformer core will not vary but remain constant in magnitude therefore no emf will be induced in the secondary winding except at the time of switching on.Also there will be no self induced emf in the primary winding to oppose the applied voltage and since the resistance of the primary winding is quite low heavy current will flow through it which may result in burning out of primary winding.
What happen to the secondary circuit if the primary circuit is close?
The secondary need to continue and help the primary one.
What will happen to the transformer if rated voltage is applied to the winding during short circuit test?
If rated voltage is applied to Transformer during S/C test, The secondary winding will burn out due ta heavy current flow through the winding. During S/C test the secondary winding is short circuited so the impedance between phase and neutral is very low(only winding resistance). But the voltage across the secondary winding is rated hence heavy current flows through the winding, as I=V/Z. it depends which rated voltage is applied. if you are talking about primary winding voltage, transformer should withstand the primary rated voltage it's been designed for (OR it has been poorly designed). Otherwise, if rated voltage is the insulation voltage between a winding and earth OR winding-to-winding, you just have to check if: 1 - it is higher than the maximum primary winding voltage the transformer can withstand (could be, could not be..). Then, you can guess if your transformer is likely to burn or not. 2 - your test setup (usually a HV generator connected between primary and secondary winding) can deliver the requested current for the setup. I guess this won't be the case, since HV testers are usually designed to generate high voltages, but very small output currents.
What happen when primary and secondary die.?
the plant will die
If primary waves and secondary wave move outwards what will happen?
focus!!
What happens when DC supply applied in to the power transformer?
we cant give dc supply to a transformer because it will have some constant frequency to work..Dc is not having any frequency component.Comment:Nothing will happen. Transformer works on the principal of electromagnetic induction were an alternating magnetic flux of the primary winding links up with secondary winding via the core. An emf will then be induced in the secondary winding if it's cut by the alternating flux. Only AC can attain this. DC does change directions and hence it won't effect anything.AnswerIf the value of d.c. voltage is equivalent to the transformer's rated primary voltage, then it's very likely that the primary winding will burn out as it has a very low resistance and the resulting current would be high.
What happen if the number of loops in the primary and secondary coils in a transformer are the same?
If the number of turns in the primary is the same as the secondary, this would be an isolation transformer. Primary and secondary voltages should match (minus the inherent transformer losses), as should the current.
Why does Secondary succession happen more frequently than primary succession?
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Are aftershocks the primary or secondary effects of an earthquake?
The difference between them is that Primary effects happen during the earthquake e.g. Casualties, Damage to parking structures & free ways. But with Secondary effects they happen after an earthquake e.g. Fire, Landslides & Liquefaction
What would happen if there were no secondary consumers?
If there were no secondary consumers, the populations of primary consumers would explode and the world would be overrun with rodents, rabbits, etc.
What will happen to the transformer if double the rated voltage is applied to the winding during the open circuit test?
no voltage will be induced on the secondary side of the motor as the windings will become saturated.
What happen if single phase supply give to two phase and one phase is earthed of three phase transformer?
Nothing good. This could lead to core saturation (core is sized for flux flowing from three phases 120 degrees out from eachother) which would cause large currents to flow into the transformer. Depending on the primary and secondary connection type (Wye or delta), voltage readings would be strange. To give real specific answers, more information is needed (core type, autotransformer, three winding, voltage of primary and secondary, winding connections, phase relationship (such as Ydn), etc.).
