Reactor for medium frequency furnace

Reactor product introduction：

The main function of the reactor is to have voltage regulation, anti-surge current and harmonic elimination.

The role of reactor for medium frequency furnace：

1: Reduction of industrial frequency transient overvoltage

Overvoltage refers to the frequency of the AC voltage rms value rise value, more than 10% of the rated value, and the duration of more than 1 minute long time voltage variation phenomenon. There are four types of industrial frequency transient overvoltage, atmospheric overvoltage, operational overvoltage and resonant overvoltage.

Industrial frequency transient overvoltage is due to a sudden change in the system trend or short circuit failure, so that the power system undergoes a transition process to re-achieve some temporary stability of the overvoltage, which is characterised by a voltage of 50Hz.

2: Improve voltage distribution

Voltage distribution calculation is crucial in the normal work operation of the transformer. In particular, the insulation of the transformer coil must reliably withstand atmospheric overvoltages, long-term operating voltages, operational overvoltages and transient overvoltages.

Analyse the reason of electromagnetic oscillation overvoltage and induction overvoltage when transformer coil is subjected to impact voltage, calculate and simulate the wave process of power transformer, use the wave process calculation software for the design of transformer insulation structure, and finally point out that the wave process calculation is an important basis for the design of longitudinal insulation of transformer.

3: Prevention of reactive power

Reactive power: the so-called "reactive power", that is, its power is not converted into mechanical energy or thermal energy.

The concept of reactive power, assuming that there is a refrigerated truck, refrigerated truck engine power of 180KW. but the car freezer to consume the engine 40KW of power used for refrigeration. Therefore the engine has only 140KW remaining to pull the cargo.

4: Prevent self-excited resonance

Power transformer in the no-load into the grid or external fault removal voltage recovery, due to the transformer core flux saturation and core material nonlinear characteristics, will produce a considerable excitation current, this shock current is usually called excitation inrush.

Some inductive and capacitive components of the power system can form various oscillating circuits when the system is operated or faults occur, and under the action of a certain energy source, series resonance phenomenon will be generated, resulting in serious overvoltage in some components of the system.

5: Compensation for ground capacitance

Ground capacitance: refers to the existence of capacitance of transmission and distribution lines to ground, and capacitance also exists between three-phase conductors. Generally electrical appliances have a capacitance to ground, and there is also a capacitance to ground between phases and between phases and between phases and ground.

Different types of reactors also have different roles, and here are brief examples for you. These intermediate frequency furnace reactor is mainly used in a variety of electrical appliances, high voltage and other fields, such as: substations, air conditioning, intermediate frequency furnace, power systems, capacitor banks, 10KV high voltage and some small household appliances, like electric fans, electric arc furnace and so on.

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