Toroidal transformer are popular application in different field, here let’s discuss details more:

Q1: If the toroidal isolation transformer could play as a filtering?

A: Can't. The function of transformer is to convert the voltage & the AC current, it can't play as a filtering. Generally, when a transformer is rectified, an electrolytic capacitor will be added to form a rectification filter pattern to convert the rectified current into a completely smooth DC current.

Q2: Whats the mark information 50HZ /60Hz on the transformer refer to?

A: The 50Hz /60Hz marks on a transformer, means that the transformer vibrate with the current within one second is 50 times / 60 times. Usually, the transformer could be used among 50Hz~60Hz universally.

Q3: If the toroidal transformer can be tested under no loading?

A: Yes. The aiming of transformer no-load test is to verify:

1. Whether there is fail connection or short circuit & transformer can work normally?

2. Whether the transformer no-load current & no-load loss within the nominal range,  and meet application requirements?

3. Whether the no-load input& output voltage value matches the rated voltage value?

Q4: How to estimated the toroidal isolation transformer's power?

A: The power could be estimated by transformer's OD & H & volume, and could be estimated based on finished weight. However, it's not accurate. To precise the transformer's power, we need to know transformer's details including voltage & current, etc.

Q5: What is "isolation" meaning for a isolation transformer?

A: Toroidal transformer without common wire, the input leads and output leads are independent, that means they are isolated from each other. It's different from an auto-transformer, and more safer to use.

Q6. Could the toroidal transformer be loaded immediately?

A: To prolonging the transformer lifespan, it's better to no-load first, and then connected to the load.

Q7: If the toroidal transformer can be energized without a load?

A: Yes, no-load is supported. And the aiming of no-load is to test no-load voltage, no-load current and no-load loss of the transformer.

Q8: What will happen if the toroidal transformer secondary short circuit?

A: Transformer will be burned and broken. To protect transformer safe, we suggest transformer with short-circuit protection device, once transformer output is short-circuited, the short-circuit protector can automatically cut off the power.

Q9: For a toroidal transformer, what is the difference of inrush current under no-load and under load condition?

A: It is not easy to cause magnetic flux saturation when closing with load. Transformer no-load with bigger inrush current than that with load.

Q10: What will happen if a 12V toroidal transformer current too large?

A:Transformer will be burnt out once the current is too large.