Brief Introduction High-frequency AC/DC conversion circuit, high transfer efficiency & CC/CV precision. Full-bridge phase-shift soft switching technology. Swift transient response time, low ripple. Friendly operation interface, low weight & small size. Unique cooling air duct for good ventilation. Full protection features. Remote control (optional) Multi-unit series & parallel operation (optional) Discharging resistor or feedback unit for motor loads (optional) Features: High frequency transformer adopted to have small size & light weight compared to power frequency transformer power supply. Full-bridge conversion design and phase-shift soft switching PWM control chips adopted. Swift transient response time, low output ripple and strong load adaptability. Output voltage & current adjustable via key buttons on front panel. CC / CV & CV / over-current two working modes, user could select working mode as needs. Over voltage and over current protection values settable. Automatic line voltage drop compensation. Voltage & Current dual-way closed loop control circuit to ensure output stability & precision. Input, output and control circuit triple isolation technology to ensure total reliability and anti-interference ability. Full protection functions, input lack/over voltage, lack phase protection, output over voltage, over current, short-circuit and over heat protection. Automatic discharging function Emergency button (available for some high power models) Various remote control options (RS232/RS485, 0~5V/0~10/4~20mA analog signal) (optional) Built-in control software (optional) Multi-units series & parallel operation (optional) Discharging resistor unit for motor test (optional, discharging power depends on motor specification) Feedback unit for high power motor tests (optional, feedback unit power depends on motor specification)
Technical Specification:
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Input: Single-phase + grounding 220V ac±10%, 50Hz±10% (no more than 1.5KW) Tri-phase, three-wire + grounding 380Vac±10%, 50Hz±10% (Higher than 1.5KW) Output voltage: 30V ~ 800V, continuously adjustable (as requirement) Output current: 5A ~ 1000A, continuously adjustable (as requirement) |
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Full-bridge phase-shifting soft switch PWM regulation | |
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Line regulation: ≤0.2% Of the rated value (±10% input variance) Time drift: ≤0.3% of the rated value (output voltage change ratio due to 8 hours continuously working) Temp drift: ≤0.3‰/℃ of the rated value (output voltage change ratio due to environment temperature changes) Load regulation: ≤0.2% of the rated value (output voltage change ratio due to output current change from 0 to rated value) |
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Line regulation: ≤0.2% Of the rated value (±10% input variance) Time drift: ≤0.3% of the rated value (output current change ratio due to 8 hours continuously working) Temp drift: ≤0.3‰/℃ of the rated value (output current change ratio due to environment temperature changes) Load regulation: ≤0.2% of the rated value (output current change ratio due to output voltage change from 0 to rated value) |
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C.V: ≤0.5% of the rated value (80% ~ 100% rated resistive load) | |
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Continuously adjustable (0 ~ rated value) | |
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Continuously adjustable (0 ~ rated value) | |
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Key button setting | |
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0.5% of rated value (V & I) | |
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LED (≤60KW) LCD touch sreen (>60KW) |
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Voltage: 0.01V (Ue≤30V) 0.1V (30V Current: 0.01A (Ie≤50A) 0.1A (50V |
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0.5% of rated value (V & I) (80% ~ 100% rated resistive load) | |
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≥85% | |
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Recovery time: ≤20ms (10% ~ 90% rated resistive load) Overshoot voltage: 5% of rated value (10% ~ 90% rated resistive load) |
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≤1.25Ie, 600s delay cut off output ≤1.5Ie, 60s delay cut off output ≤2Ie, 5s delay cut off output >2Ie, cut off ouput immediately No more than 10KW (10KW model doesn’t have this function) |
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Output will be cut down when input lack voltage, over voltage protection. Output over voltage, over current, power equipment over heat, output compensation, output reversed connection and short-circuit protection. |
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≤55dB (≤30KW) (≥1m) ≤60dB (30KW ~ 60KW) (≥1m) ≤65dB (≥60KW) (≥1m) |
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Insulation resistance | ≥2MΩ |
| Withstand voltage test | 2000Vdc, leakage current<10mA | |
| Grounding induction resistance | ≤0.1Ω | |
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Auto cut off output and alarm when short occurs during working. If manual shorted before starting, power supply with auto CC working to limit output current. No frequent manual short which might damage internal components. |
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Withstand long-term continual working at full load | |
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RS232/RS485 0~10V/0~5V/4~20mA analog signal |
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Location: indoor use only. Temperature: 0°C ~ 45°C Humidity: 10% ~ 90% Height: ≤3000m |
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