0
What else can I help you with?
What is DCR in transformers?
It is dc resistance, use to measure the rated current at primary and secondary side
Can booster transformer be used in dc distribution system?
No. Transformers work in AC systems, not in DC systems.
Why the windings burn when transformer is operated in DC?
Transformers are not intended to be operated in DC. DC does not provide the continuously fluctuating current that a transformer requires in order to function. On DC, a transformer will act as a transient mode inductor, and settle out to a high current state, destroying itself.
What device converts direct current to alternate current?
Any device that has a battery and can be plugged into the wall. The power coming from the battery is DC, while the power from the wall is AC.
Doesn't a transformer work with dc from a generator?
Transformers do not work with DC. Transformers are magnetically coupled inductive devices that operate with AC (fluctuating) voltages. If you supplied DC to a transformer, it would simply look like a short circuit, and the secondary would stabilize to no voltage and no current. This is because, in order to generate a current in a conductor from a magnetic field, either the magnetic field needs to be fluctuating or the conductor needs to be moving.
Direct electric current cannot be used to operate A. Electric motors B. Electric heaters C. Electromagnets D. Transformers?
Direct electric current cannot be used to operate D. Transformers.
DC current is not used in transformer?
No. Transformers rely on the magnetic field changing direction to work, so DC can't be used.
Why ac current is used in a transformer?
AC current or DC current can be used in transformers. A transformer is made of two coils of wire, the input coil induces a current into the output coil. Transformers change the voltage either up (step up transformer) or down (step down transformer). The amount of change in voltage is dependent solely on the number of windings in both coils in the transformer. DC transformers work exactly the same way AC transformers do.
Why transformer can not be used in dc supply?
The transformer cannot be used in the DC supply because it keeps on alternating its current, whereas the DC supply current should be constant.
Can dc current work on transformer?
Transformer is by definition can transform only AC current. But it's possible to build device that can step up or step down DC voltage directly. These are called DC-DC converters not transformers.
Is direct electric current used in transformers?
no direct current is not used in transformers. the reason is that, if dc is used, there would be no counter emf to oppose it in the primary winding. since the constant flux will be flowing in the dc, there would be no rate of change of flux. as a result, the total current will be applied at the primary winding only. this results in the burning of the total primary winding. ===================================== The practical application is: If transformer input is DC, transformer output is smoke.
Why transformer not working in dc supply?
Because it is only possible to have a voltage in the secondary winding when the current in the primary is changing. This is why only alternating current can be used for transformers.
Why auto transformers are not used directly on dc circuits?
Transformers are not used on DC circuits because they rely on a varying magnetic field to transform power.
Can DC supply be used in transformer?
No. Transformers work on the principle of induction, induction needs a CHANGE in the flux to happen. A change in the flux can be produced by a changing current which is produced by an AC voltage supply. It is also not good to have DC added to an AC in transformers for some reasons I don't think you will be interested in. But never use DC with transformers because it will heat up and waste energy and no power would be transfered to the secondary side (some power would be produced for the first microseconds until the the voltage reaches it's peak). Dc flux cannot be used in a tranformer because the frequency is zero.
Why DC cannot be stepped down?
DC cannot be easily stepped down using a transformer like AC because transformers work on the principle of electromagnetic induction, which requires a changing magnetic field to induce a current in the secondary coil. Since DC has a constant magnetic field, it cannot induce a current in the secondary coil of a transformer. However, DC can be stepped down using other methods such as voltage divider circuits or chopper circuits.
What is DCR in transformers?
It is dc resistance, use to measure the rated current at primary and secondary side
Can booster transformer be used in dc distribution system?
No. Transformers work in AC systems, not in DC systems.
