The resistor array has been designed to operate with two simultaneous duty cycles.
a) 50 A DC for 1 hour (continuous) followed by 3 hours cooling
b) 200 x 170 kV impulses (1.2 / 50µs) occuring during the 1 hour ”Duty A” operation while providing an resistance value of 50R0 ± 5%.
The resistor array utilises 630 off HVR Pentagon’s PE450 wire-wound resistor tubes utilising non-inductive windings. They are arranged electrically in 42 series / 15 parallel arrangement in order to achieve both the required high continuous power rating of125 kW and the high voltage withstand of 170kV.
Features and benefits
- 280kW loadbank
- Resistance value at 50R0 ± 5%
- Peak voltage of 2.5kV
- 200 x 170kV impulse during 1 hour
- Air cooling
- IP23 housing