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Variable frequency power supply

Product Usage

This product is used in conjunction with the frequency modulation series resonance testing device, mainly for on-site AC withstand voltage tests and partial discharge tests on 1000KV and below voltage level sF6 circuit breakers, G1S combined power transformers, and other large capacity power transformer equipment. It can also be used as a high-power intermediate frequency power supply for induction voltage withstand tests.

 

Product technical parameters

Nameplate capacity

50-300kW

Rated voltage

0.35kV

Rated current

100~860A

Rated frequency

30~300HZ

The above parameters are for reference only. Please feel free to inquire about detailed solutions

 

Product Features

The starting power of this device is small, and the voltage and frequency are continuously adjustable. The frequency is continuously adjustable within the range of 20Hz to 300Hz; The output voltage is continuously adjustable within the range of 0-350V.

Using imported high-power power transistors to form a Class B power amplifier analog circuit, the output voltage waveform is sinusoidal, with low waveform distortion and low waveform distortion rate.

Small size, light weight, convenient transportation, especially suitable for on-site testing.

It is equipped with multiple protections, including: discharge breakdown protection, overvoltage setting protection, startup zero protection, bridge arm amplification protection, etc.

Using fiber optic control to isolate the high-voltage and low-voltage control circuits, ensuring the safety of testing personnel.

Adopting microcomputer control, with high output frequency stability and stable output voltage.

 

Main components of the product

Variable frequency cabinet

Power control box

Fiber optic connection

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