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Frequency converters for electrical power units

Преобразователи частоты для электрических силовых агрегатов

A simple and reliable diagram of the device of electrical power units allows the use of this type of engine in a variety of industrial and other areas of activity. The resource embedded in them:

  • Does not require serious maintenance and repair costs.
  • Designed for a long period of operation even in the most difficult conditions (the average service life of an electric motor before overhaul can reach 25 years).

That is why today the motors, released in the last century, continue to work successfully. And the only complaints addressed to them, taking into account the needs of today, are:

  • High consumption of expensive electricity.
  • Lack of adjustment of the smoothness of start, stop and operation at idle modes of high-tech equipment connected to them.

It is quite simple to solve these problems without replacing a regularly working electric motor with a new one for many years by selecting and installing Chastonik VEICHI - a frequency converter or inverter, which is designed to automatically adjust (change) to the specified parameters, supplied to the power unit of periodic voltage.

Schematic diagram of the inverter

The constant (set by the developers for a specific model) rotor speed of an electric motor from the moment it starts (voltage is applied to the winding) and until it stops (turns off), does not allow connecting certain types of mechanical equipment or devices to it. Mechanisms working with the use of such power units fail quickly enough due to high dynamic loads that arise during starting and accelerating parameters. The use of a frequency converter allows:

  • Carry out a smooth start and a set of working revolutions of the rotor.
  • Adjust the power unit shaft speed.
  • Bring the engine operation to the minimum consumption of electrical energy in case of idle running of the connected equipment.
  • Maintain the specified number of revolutions with varying loads.
  • Carry out smooth and uniform braking without disconnecting the power unit itself from the electrical network.

It should be borne in mind that you should choose the right frequency drive not only according to the technical characteristics of the electric engine itself, on which it will be installed, but also according to the operational parameters of its future work, for example:

  • Standard ventilation systems for pumping or supplying airflow - motors are not heavily loaded and are required


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