With the rapid development of industrialization, toroidal transformers are more and more widely used in medical, industrial, communication and other fields. Here let's continue discuss talk about the toroidal transformers:

Q1: Will the price keep same when each group of output multi-winding toroidal transformer with full rated power?

A: Toroidal transformer price influence by the copper wire cost, once each group of power is full, the output copper wire will increase significantly, so the transformer increase accordingly.

Q2: If all toroidal transformers with its leakage protectors?

A: No. Generally, the lower-transformer which below 100W without leakage protection devices. Coilcore support customized leakage protection devices.

Q3: What's problem of a toroidal transformer when without grounded?

A: For Non-isolation transformers, once transformer output over 36V, there will be a electric shock.

Q4: What's power of a isolation transformer should match for 2000W load ?

A: Since there are different kinds of loads, we should calculate according to the load. For example, a light with driving inside, its real load maybe as high as 2200W. In theory, we preferably 92%-94% of the rated power of the self-transformer, here we suggest 2500W isolation transformer for 2000W load.

Q5: What details we should notice specially of a toroidal transformer?

A: According to the toroidal transformer installation occasions, we should take notice of toroidal transformer's VOLUME, POWER, INPUT/OUTPUT VOLTAGE. What's more, the loss of the transformer, vibration, temperature rise need take into account. In meantime, for some special equipment, such as medical machinery, pressure resistance is important.

Q6: If a toroidal transformer could run at full load?

A: A sufficient power transformer can be run at a full load for a short time. However, full-load running of a long-term is not good for transformer's lifespan, we don't suggest it. A toroidal transformer load is better at 92%~95% of the rated power.

Q7: Is the full-cover potted toroidal transformer better than the common side cover toroidal transformer ?

A: It depends on the application field.

For outdoor project, the full-cover potted toroidal transformer can be more waterproof.

For indoor project, the side cover toroidal transformer has good heat dissipation, competitive cost.

Q8: If a toroidal transformer insulation level reach 180 degrees?

Answer: Yes.

The insulation grades of toroidal transformers including: Class A - 105 degrees, Class E - 120 degrees, Class B - 130 degrees, Class F - 155 degrees, and Class H - 180 degrees.

Currently, almost toroidal transformer with B class 130 degree. If want to H class 180 degree, just request H-class 180 degree material, with production cost higher.

Q9: What is coilcore's silicon steel core's for toroidal transformer?

Answer: 0.3-0.35mm.

Q10: What does the current, no-load and load of the toroidal transformer mean? For example, 100W input 220V output 36V 2.7A

Answer: Current: The current generated when the toroidal transformer is working, there are primary current, secondary current, primary no-load current, full-load current, and secondary working current.

No load: The transformer secondary is not connected to the load or the load is open circuit

Load: The transformer is the load for the power supply! The electrical equipment connected to the secondary is the load for the transformer

100W is the electric power of the toroidal transformer! 220V is its primary input voltage, 36V is its secondary output voltage, and 2.7A is its secondary current.