Contact Us
TEL: +86-510-86180056
Fax: +86-510-86189830
E-mail: zhouzhen0404@hotmail.com
Address: No.219, Nanjiao Road, Nanzha Town, Jiangyin, Wuxi, Jiangsu, China (Mainland)
Home > Knowledge > Content
EI transformer rated power, rated voltage and voltage ratio
Apr 20, 2018

In the process of operation, EI transformer is mainly used for voltage conversion. When used, it can be based on the law of electromagnetic induction. Under normal circumstances, the inductor coil will be used in electronic circuits. According to its Lenz's law, the former generally has two One or three windings, the primary winding and the secondary winding, for the step-up transformer, the primary winding has a small number of turns, a large diameter, a large number of secondary windings and a fine wire diameter. The step-down transformer is opposite to the primary winding. The number of multi-wire diameter is fine, the number of secondary turns is small, and the diameter of the secondary turns is widely used as a power source in various electrical appliances.

EI transformer inductance coil basically used in two aspects in the electronic circuit

1. EI transformer and capacitor resistance for the waveform generation circuit or frequency selection circuit.

2. EI transformers are used as smoothers in series circuits where the current is large and the ripple is large. There are many other occasions, such as the ballast in the fluorescent lamp, which is based on the principle that the current at the two ends of the inductor cannot be changed when the current change rate is too high, and a high reverse electromotive force can be generated.

What is the specification and model of the EI transformer and how is it formulated?

1. EI transformers are classified according to the cooling method: dry (self-cooling) transformers, oil-immersed (self-cooling) transformers, and fluoride (evaporative cooling) transformers.

2. EI transformers are classified by moisture-proof mode: open transformers, potted transformers, and sealed transformers.

3. According to core or coil structure classification: core type transformer (insert core, C type core, ferrite core), shell type transformer (insert core, C type core, ferrite core ), toroidal transformers, metal foil transformers.

4.EI transformers are classified according to the number of power phases: single-phase transformers, three-phase transformers, and multi-phase transformers.

EI transformer characteristic parameters

EI transformer core loss and frequency are very large, it should be designed and used according to the frequency of use, this frequency is called the operating frequency.

EI transformer rated power

EI transformers operate at a specified frequency and voltage for a long period of time without exceeding the output power at the specified temperature rise.

EI transformer rated voltage

EI transformer refers to the voltage allowed to be applied to the coil of the transformer and must not exceed the specified value during operation.

Voltage ratio of EI transformer

Refers to the transformer primary voltage and secondary voltage ratio, there is no load voltage ratio and load voltage ratio difference.

 

http://www.ht-siliconsteel.com/


Previous: EI silicon steel sheets type and performance index

Next: Grounding points and use requirements of motor cores