Introduction:
The WWL series has high stability and excellent electrical performance. They are industrial power supplies for universal purpose which can be used as a variable source for research and development and long-
term aging test.
Features:
- Over 250 models available
- Power range: 0- 700V; 0 - 200A; 6kW –400kW (optional)
- Automatic diversion between constant voltage mode and constant current mode
- Low ripple and noise rate
- Fast response
- Constant current can be checked or set during operation
- Low input current, high reliability, higher efficiency and less line distortion due to the choke input circuit
- Over voltage protection unit (OVP) is equipped as standard
- Output on/off switch
- Remote sensing terminals (optional)
- Operating status is indicated by LED
- External analog control (optional)
- 16 bit D/A card for PC ISA (optional)
Electrical Characteristics
- Input,Output:
Input: Three-phase380V±10%AC, 50Hz/60Hz±10%
Output: DC C.C. and/or C.V.
Max output: on demand - Accuracy (C.V.): Line regulation(361-418V):≤0.1% Of the rated value
Stability: during 8 hrs≤0.3% of the rated value
Temp. coeff.offset:≤0.04% of the rated value/°C
Load regulation(load 0~100%):≤0.3% of the rated value - Accuracy (C.C.): Line regulation(361-418V): ≤0.1% Of the rated value
Stability: during 8 hrs≤1% of the rated value
Temp. coeff.offset:≤0.04% of the rated value/°C
Load regulation(load 0~100%): ≤0.3% of the rated value - Ripple +noise(r.m.s): CV: ≤0.1% of the rated value+10mV (50%~100% rated output)
- Programming output voltage: Adjustable (0~rated value) or CV
- Programming output current: Adjustable (0~rated value) or CC
- Adjusting mode: 10-turn Potentiometer
- Protections function: Output will be cut down when over voltage/over current/lack phase or over temp.
- Short protection: Withstand short-circuit
- Working mode: Withstand long-term continuous working at full load
- Read output: Digital LED
- Display precision: Depends on output specification
- Display accuracy: ≤±1%±1digit (range:5%~50% of the rated value)
≤±0.5%±1digit (range:50%~100% of the rated value) - Load characteristic: On demand
- Operating condition:
Location: indoor use only
Temperature:-20°C ~ +40°C
Humidity:≤80% - Spare parts: Company standard (fuse1set, main board1pc, operation CD*1pc)
● Input Voltage: Power source voltage can be changed to others on request.
● Custom-made specifications are on request