WNG Series Open Frame Power Supplies
- Technology
- Open / u-frame power supplies
- Partner
- RSG
The basic construction of this switch-mode power supply consists of a bridge rectifier and a push-pull converter. It works as a constant current source with voltage limitation and supplies an inverter and a buffer capacitor. It is designed for a permanent output of up to 5kW. The WNG series can produce 10kW peak output power for 10 seconds. When the maximum current is reached, the output power is limited in accordance with a characteristic curve controlled by the processor.
Due to the installation environment in the hub of wind turbines, the WNG series was designed, tested and certified for high mechanical demands.
Each pitch control system in a wind turbine contains three power supplies as the WNG.
Range features
A high level overview of what this range offers
- Input: 3-phase 360-440VAC, Imax <150A peak (@ 400VAC)
- Output: 90VDC, 55A (100A for 10s), Inom = 3x 20A
- Isolation voltage I/O: 3kVAC
- Input filter: acc. EN55022 Level A
- Continuous short circuit protection
- Maintenance-free
What’s in this range?
All the variants in the range and a comparison of what they offer
| Model | Input voltage | Output current | Output voltage | Output power |
|---|---|---|---|---|
WNG-90/100/400 | 360 ~ 440VAC | 55 (100 for 10s)ADC | 75 ~ 120VDC | 5kW (10 for 10s) |
