CN / EN

High voltage frequency conversion cabinet

We have established long-term cooperative relationships with AB, ABB, Schneider, Fuji, and domestic high-voltage variable frequency production plants.


We have established long-term cooperative relationships with AB, ABB, Schneider, Fuji, and domestic high-voltage variable frequency production plants.

Transformer cabinet

Isolation transformer: With multiple secondary winding outputs, it provides an independent phase-shifting power supply for the power unit, which can greatly improve the current waveform on the grid side and reduce harmonic pollution of the equipment on the grid.Transformer cooling fan: According to different powers,corresponding dedicated cooling fans for dry-type transformers and centrifugal fans on the top of the cabinet are configured.

Power unit cabinet

Controller: Implement PWM control of space voltage vector, signal acquisition and processing, fiber optic communication between units, and complete electrical isolation.Power unit: Modular design of power unit, interchangeable, easy to produce and maintain.

The interface board is responsible for the digital and analog signals of the system, processing them to meet the requirements of different application scenarios.

Monitor: A digital signal processor (DSP) is used as the control chip, with a Chinese and English LCD for intuitive display. It is used for parameter setting,operation recording, fault saving, and communication functions, and is easy to Products operate without a hard disk.

Bypass cabinet or switching cabinet (optional)

The switch of the bypass cabinet or switching cabinet can be selected according to the user's working conditions by using isolation knife switches, vacuum contactors, vacuum circuit breakers, or other combination methods. The function of the bypass cabinet is to put the motor into the power frequency grid for operation after the frequency converter is out of operation, ensuring the continuity of production; The function of the switching cabinet is to switch the output of the frequency converter to different motors.

Grid connected synchronous switching cabinet (optional)

Enable the high-voltage frequency converter to have grid synchronization switching function, meeting the user's requirements for high-performance startup and undisturbed grid connection switching.

Multi machine follow-up control system (optional)

The multi machine follow-up control system meets the requirements of synchronous control and power balance for multiple frequency converters of users, Through high-speed communication via optical cable, it meets the requirements of multi motor follow-up control.The system cooling fan adopts German EBM fan, with large air volume and long service life.

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