Power Systems & Controls, Inc.

SERIES GRF
Rotaty Filter

FOR USE IN HIGHLY SENSITIVE COMMUNICATION SITES AND IN HIGHLY SECURE DATA PROCESSING LOCATIONS MIL STD 461 and MIL STD 188 125

Guideform Specification

Rotary Filter Cut Sheet

System Description

The Series GRF is designed to provide a high degree of electrical isolation between incoming utility and the secure load. The Government Rotating Filter (GRF) consists of a motor, generator, insulated coupling, power components, control devices and monitoring systems built into a single sound enclosure suitable for installation in a computer room environment.

The motor-generator set and associated controls provides a means of electro-mechanically isolating, and filtering disturbances in the AC power source from the protected load. The design encompasses total DC electrical isolation and minimize AC coupling for frequencies below 15 kilo Hertz.

• Brushless, two bearing induction motor with brushless exciter
• Reduced current motor starter
• Motor Controls
• Motor input circuit interrupter
• Brushless, two-bearing synchronous generator
• Brushless direct connected AC exciter with rotating rectifiers
• Non-conductive high dielectric coupling between motor and generator
• Generator Controls
• Generator output circuit breaker

Latest Model Tempest Approved by USG

• SERIES GRF - IC
• MIL STD 461
• MIL STD 188 125