Grid resistors offer high power ratings to 6.5 kW
Vishay Intertechnology, Inc. (Malvern, PA) introduced a new series of high-power, high-current grid resistors. Vishay Milwaukee GRE1 devices combine high power ratings to 6.5 kW and high operating temperatures to +400 °C with a robust design. With high power capability from 1 kW to 6.5 kW at +40°C, the grid resistors are optimized for capacitor pre-charge and discharge, dynamic braking, load testing, heater, and neutral grounding applications in locomotives, harmonic filters, and renewable energy and industrial systems. The devices feature:
- A wide resistance range from 0.1 Ω to 24 Ω, with tolerance of ±10 percent.
- Low inductance from 5 µH to 40 µH.
- A steel plate element, ceramic insulators, and multiple taps.
- Welded construction.
- Double insulation for cooling efficiency.
For more information, visit www.vishay.com