Production of intermediate frequency generator sets

Intermediate frequency generator set (frequency doubling withstand voltage test)

Intermediate frequency generator set (frequency doubling withstand voltage test)

1Product Introduction:

Medium frequency variable frequency brushless generator (hereinafter referred to as the generator)group）By50Hz、 Powered by a 380V power supply, the intermediate frequency brushless synchronous generator with coaxial and common casing is driven by a power frequency squirrel cage asynchronous motor (hereinafter referred to as the power frequency motor) to generate electricity, providing frequencies of 100Hz, 125Hz, 150Hz, and 200Hz to the outside worldwaitThe voltage is20-800V three-phase intermediate frequency power supply. After the generator is successfully started, the no-load residual voltage of the intermediate frequency generator does not exceed 20V. By adjusting the excitation, the output voltage can be continuously adjusted within the range of not exceeding 20V to 800V，From no-load to rated no-load, the sine distortion rate of the generator output phase voltage waveform is ≤5%；Intermediate frequency generator setcomplete set of equipment(including three-phase asynchronous motor, intermediate frequency generator, coupling, and common chassis)And control operating system）

productMainly used as airport power supply, medium frequency induction heater power supply, transformerVoltage resistant doublingTest power supply, high-frequency vibration rod power supply, etc. can also be used as an intermediate frequency power supply for ititIn various industries.

The series of intermediate frequency generator sets produced by our company are powered by 50Hz and 380V, driven by a coaxial intermediate frequency engine using a power frequency squirrel cage motor, and provide external voltages of 100Hz, 125Hz, 150Hz, and 200Hz3The three-phase AC power supply of 0V-800V is mainly used as airport power supply, intermediate frequency induction heater power supply, transformer test power supply, high-frequency vibration rod power supply, etc. It can also be used as an intermediate frequency power supply in other industries. The unit voltage can be constant or adjusted according to user requirements，Special voltage level products can also be designed according to customer requirements. This series of products has the characteristics of easy adjustment, good waveform, and reliable performancePoint,The unit can be equipped with a control system according to customer requirements, which has functions such as generator voltage, current, excitation voltage, excitation current display, generator overvoltage and overcurrent protection, and motor thermal protection. Simultaneously equipped with excitation regulation function, it can continuously adjust the generator voltage to the rated voltage. The control cabinet is equipped with a test timer, which can automatically reduce the voltage and disconnect the load after the test time is up，The power ranges from 1kVA to 500VA. Permanent magnets are used below 5kvA, while others are electrically excited.

thisdeviceSuitable for distribution transformers and power transformersPressure sensor sensingShould withstand voltageexperimentPartial discharge testing, with system background noise not exceeding 5pc and clear partial discharge signals, is an ideal equipment for transformer induction withstand voltage and partial discharge testing. The transformer induction withstand voltage test device is designed for me in ShanghaiHuyi CompanyThe newly developed control system for intermediate frequency power output has the characteristics of motor Y-start, overcurrent protection, zero position start, full digital display power supply, excitation power supply, intermediate frequency output power supply, etc. It is a low-voltage control measurement and protection system for a complete set of frequency doubling units. This console is the central control unit, which can control the unit to generate30-800V125Hz, 150Hz, 200Hz adjustable power supply.

IICharacteristics of intermediate frequency generator set:

This control cabinet can only activate the function of the intermediate frequency power supply when the voltage regulator is started at zero position, ensuring that the intermediate frequency power supply outputs from a low potential. After the motor is started by Y -, the intermediate frequency indicator light will light up before the intermediate frequency power supply can be started to ensure full voltage starting of the motor. The motor is protected by a thermal relay. When the motor overheats, the main circuit is cut off and the voltage regulator automatically returns to zero. ·The excitation power supply current and intermediate frequency output power supply are overloaded, the overcurrent relay is activated, the main circuit is cut off, and the voltage regulator automatically returns to zero position.

3、 Product parameters:

Rated power: 30kVA, 60kVA, 100kVA, 150kVA, 200kVA, 300kVA; Input frequency: 50Hz

Output frequencies: 100Hz, 125Hz, 150Hz, 200Hz;

Technical parameters of electric motor:

Rated capacity: 30KW

Input voltage: three-phase four wire system AC380V ± 10%

◆ Input frequency: 50Hz ± 2Hz · Power factor: cos ø 0.8

◆ Generator technical parameters: · Rated capacity:60KVA

Power factor: cos ø 0.5 · Output capacity:30KW

◆ Output voltage:30~800V AC

Output current:43A

Output frequency: 150Hz ± 2Hz

◆LiMagnetic method: DC excitation regulation

◆ Environmental temperature: -150C-450C · Relative humidity: ≤ 85% RH

◆ Altitude: ≤3000 meters