JJZ-FF Overhead Line Fault Indicator
JJZ-FF -2 Overhead Line Fault Indicator

JJZ-FF Overhead Line Fault Indicator

JJZ-FF Overhead Line Fault Indicator is usually used in 5~38KV overhead line power distribution networks to monitor and detect short-circuits and earth faults. The fault is indicated by a mechanical flag and three ultra-bright blinking LEDs with 360º sight. The indicator can be mounted under live conditions with the help of an adapter and a hot stick.

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Feature of JZZ-FF Overhead Line Fault Indicator

  • Short circuit Fault: Red mechanical flag and three red ultra-bright blinking LEDs.
  • Earth-fault: Red mechanical flag and three red ultra-bright blinking LEDs
  • Low Battery Warning: Red mechanical flag.
  • Parameter Adjust: The parameters can be adjusted by dial switches during production.
  • Power Supply: Lithium battery, type AA 2.7Ah/3.6V.

 

Specification of JZZ-FF Overhead Line Fault Indicator

Subject Value
Short-circuit Trip Current (Phase to Phase) 150A, 300A, 450A, 600A, can be set by dial switch during production
Trip Current Delay 40, 80, 120, 200ms, can be set during production
Indication Unit Reset 1. Manual by magnet
2. Time reset: adjustable, 2 minutes, 8h, 24h, 48h, can be set during production
3. Auto reset after repower, 30s default, only for permanent fault
Protection Class IP68
Internal Type Test According to IEEE495-2007
Operation -40~+70℃
Temperature Range
Power Supply Lithium battery type AA 3.6V/2.7Ah, replaceable
Battery Life  10 years
Weight Approx. 600g
Dimensions Diameter: 93mm
Height: 128mm
Accuracy 0A~300A ±3A
300A~800A ±1%
Cable Diameter 6mm~42mm
Ranges
Blinking Frequency 10 per minute, adjustable
Max. load/fault Current 1100A
Voltage range 5~14KV. For higher voltage, can be customized
Current withstand 31.5KA/4s

 

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