HFC 300KW Frequency Converter

Mode: HFC 300KW
1) Rated input power: Three phase380V±15%, 50Hz
2) Rated Input current: 455.8A
3) Rated output power: 300kW
4) Rated output voltage: Single phase 0~460V
5) Rated output current: 652.2A
6) Output voltage stability: UN±1%
7) Output waveform: Pure square wave
8) Cooling: Forced air cooling
9) Output frequency stability: f0±0.01%
10) Frequency sensitivity adjustment: ≤0.1Hz
11) Instability: ≤0.05%
12) Frequency adjustable range:20~300Hz
13) Insulation level: input, output termination to ground ≥2kV/AC/1min
14) Noise: <75dB(A)
15) Temperature rising: leg temperature <40K, electronic circuit temperature <40K, the main circuit hottest <50K;
16) Working time: continuous operation at rated output capacity for 180min;
17) When the frequency is adjusted in the setting range, constant voltage output;
18) The connections between frequency power and control box, divider and control box are all realized by fiberoptic, compete isolation to avoid damage to the control box in the back after the test penetrated, to ensure safety;
19) Body and control, display and protect are separated. Body and protection as a whole, control and display for another whole.
Control and display site should be easy to carry;
20) Frequency power is with anti interference ability. When in the strong electric field interference, the measurement accuracy and control and protection can meet the requirements. Components and lead shielding materials with good magnetic shielding are all made of high permeability without space radiation. 

 
Variable frequency power source control cabinet: 
1) Equips starting, stop and emergency switch - off button;
2) Equips raise voltage and reduce voltage rough adjustment and fine control button(voltage raise and down speed are settable);
3) Equips frequency rough adjustment and fine control button (Adjusting speed is settable);
4) Cooling fan direction automatically selection;
5) Automatic and manual test selection (Auto tune, automatic raise and reduce voltage);
6) Equip test methods auto selection function, automatic test methods: setting test voltage, test time, auto tune --- auto raise voltage --- auto constant voltage and timing --- auto reduce voltage.
7) Manual test methods also has the selection of auto tune and auto timing;
8) Equips output voltage, over-voltage protection and over-current protection setting value adjusting function;
9) Equips testing time setting function, time setting range:0-99min, timing accuracy±0.1second, end of setting time has sound reminding.

Principle Diagram: