As the largest independent manufacturer of power resistors in the world, Post Glover specializes in customer service. Our desire to be the best goes back to 1935 when our people developed the first patented nonbreakable stamped grid resistor. Post Glover power resistors are a rugged design built with the guts to last the longest. For use in everything from overhead cranes, locomotives, high resistance grounding systems to slurry pumps, neutral grounding resistors and we manufacture the broadest line of power resistors in the industry for replacement and original equipment.