DBF Digital Breaker Failure

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DBFDigital Breaker Failure
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DBF

• Main Characteristics
• Box of 19 rack and 3U high.
• Common hardware platform with DDS, SMOR and other
  GE Multilin products
• It can be integrated in the DDS and SI
• Compatible with the software GE-NESISTM

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Characteristics

• Digital technology, multiprocessor based.
• Integration of
• Protection.
• Monitoring and Analysis.
• Oscillography of 16 samples per cycle.

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Main Functions

• Breaker failure with two independent tresholds.
• Internal arcing protection.
• Current metering.
• Breaker Health Monitor (kI2t ).
• Event Recorder, last 165 events.
• Oscillography, 4 records of 62 cycles.

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Protective Functions

• Breaker Failure
• Three-phase Ground overcurrent units.
• BFI single-phase three-phase with independent
  timers and levels to start and adapt the breaker
  failure.
• Operation failure detection. Applicable where
  there is a mechanical fault (direct trip without
  current presence).

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Protective Functions

• Internal arcing protection
• Three-phase very sensitive overcurrent units
  timer to detect electrical arcing between the
  contacts of the breaker when it is opened.

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Metering Monitoring

• Current metering (Ia, Ib, Ic, In).
• Breaker health monitoring.
• Event recorder, last 165 events.
• Oscillography, 4 records of 62 cycles.
• Configurable inputs/outputs.

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Local Communication

• Integrated MMI Display
• 2 line display and 16 alphanumeric characters.
• 20 keypad display with three password levels.
• Current value monitoring (RMS)
• 16 configurable LEDs for signalling.

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Remote Communication

• 3 RS232 Communication ports (DB9).
• 1 on the front (RS232).
• 2 on the back (1) RS232 (1) RS232/PLASTIC
  O.F./GLASS O.F.
• 300 to 19,200 Bauds.
• Software GE-INTRO
• Current values, fault report, relay setting,
  osccillography data collection.
• Three password level.
• IRIG-B for synchronization.

Telephone Line
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Flexible Mounting

• Semi-flush mounting. Rack 19 3 U high.
• Front Display, keypad and LEDs for signalling.
• Power Supply 48 VDC and 110/250 VDC.

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High quality and reliability

• Design
• Modular and flexible plattform.
• CE marking.
• Wide operation temperature range
  -20 ºC to 65 ºC.
• ANSI and IEC standards.