GE Logo
About Us
Home > Grid Automation > Protection Relays > Legacy Feeder Protection > DFF Digital Frequency Relay
Product Lookup
Protection & Control Online Store
Protection & Control Support
Event Calendar
Protection & Control Press Room
Resources
  Brochures
  Manuals
  Specifications
  Drawings
  Software
  Support
  Presentations
  Application Notes
 
Subscribe

 

 
DFF Digital Frequency Relay - Legacy

DFF Digital Frequency Relay
Manufacturing for this product has been discontinued. As an alternative, please refer to the F60, G60 or F650 relays.

The DFF is a digital relay used to supervise the frequency of the power system and provide load shedding capabilities. The DFF is applied directly to a generator to protect against those abnormal conditions that result in frequency fluctuations, and throughout the system to "shed" load in an attempt to regain frequency stability.

Applications
  • Load shedding frequency schemes
  • Protection and Control
  • Underfrequency protection
  • Under and overvoltage protection
  • 33 configurable outputs
  • 14 configurable inputs>
  • Monitoring and Metering
  • Event record, last 150 event
  • Oscillography, 4 records
  • Voltage: 16 samples per cycle
  • User Interface
  • Keypad and LCD display
  • 16 configurable LEDs
  • Front RS232 port
  • Rear RS232, RS485, or fiber optics
  • Software provided
  •