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Fax: (716)-684-0987
 

Ground Fault Protection Monitors
Offering Ground Fault Protection of Motors and Generators

 

Accumetrics’ EFREM (Earth Fault Resistance Monitor), RHM (Rotor Health Monitor), and GDS (Ground Detection System) offer superior ground fault protection of motors and generators. Our systems monitor for insulation faults on the field windings of generators and synchronous motors with brushless exciters. They employ advanced wireless techniques to transmit measurement data from the rotor to a stationary receiver unit.

 

Accumetrics’ ground fault detection systems are in a class of their own. They provide immediate notification of field ground faults, reducing the risk of prolonged and costly unscheduled outages.


AT-8000 – Earth Fault Resistance Monitor
  • Continuous, reliable monitoring for faults while rotating or at standstill
  • User customizable ground alarm threshold
  • Fault location indicator
  • Trending and archiving capability
  • Continuously monitors field excitation voltage and insulation resistance
  • Non-intrusive end of shaft or custom mid-shaft mounting options
  • Built-in self-diagnostics and malfunction alarm
  • Learn more >>
  AT-8300 – Rotor Health Monitor
  • Continuous, reliable monitoring for faults while rotating or a standstill
  • User customizable ground alarm threshold
  • Fault location indicator
  • Trending and archiving capability
  • Dual alarm relay contact outputs
  • 4-20 mA outputs available
  • Field voltage level and current monitoring
  • RTD monitoring for specific location temperatures
  • Current shunt can be installed to measure field current
  • Non-intrusive end of shaft mounting
  • Built-in self-diagnostics and malfunction alarm
  • Learn more >>
  AT-8600 – Ground Detection System
  • Continuous, reliable monitoring for faults while rotating or at standstill
  • Fixed ground alarm threshold of 10 k Ohm
  • Non-intrusive end of shaft mounting
  • Built-in self-diagnostics, malfunction alarm, and open wire detection
  • Learn more >>