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DJX-FF Cable Line Fault Indicator

Four-Faith Smart Power Technology Co.,Ltd.

DJX-FF Cable Line Fault Indicator

Country/Region china

Company Four-Faith Smart Power Technology Co.,Ltd.

Categories Mining Cables

Update 2020-12-30 22:33:09

ICP License Issued by the Chinese Ministry

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DJX-FF Cable Line Fault Indicator
The DJX-FF-C Cable Line Fault indicator is used in 6~35KV Cable line power distribution networks, usually installed in Ring Main Unit, Cable Distribution Box, Switch Cabinet, enable the electricity distribution network engineers to quickly identify the faulty section of network and restore power supplies to customers on healthy sections in the shortest time possible.
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Main Technical Parameter:
  • Short Circuit Warning Current: 200-2000A Selectable (accuracy:±10%); Delay 20-300ms; Customer could select before production; Default Settings: 800A/20ms
  • Earth Fault Warning Current: 10-150A Selectable (accuracy:±10%); Delay 20-300ms; Customer could select before production; Default Settings: 20A/20ms
  • Short circuit sensor mounted cable diameter: outside diameter≤40mm (other specifications shall be customized)
  • Earth fault sensor mounted cable diameter: outside diameter≤120mm (other specifications shall be customized)
  • Working Ambient Temperature: -40℃-75
  • Relative Humidity95%RH
  • Working Power Supply: The sensors are powered by the CT when the flowing current above 10A, when the current under 10 A, will powered by the backup Lithium battery; The display unit is powered by the Lithium Battery
  • Remote Signal Communication Reset Method: Manual reset / Auto reset
  • Automatic Reset Time: 1-48H Selectable (accuracy:±1%); Customer could select before production; Default Settings: 12H
  • Suitable for medium voltage below 35KV rating system.

System Composition
The system of the earth fault locator is composed of 3 pcs short circuit sensor, 1 pcs earth fault sensor, and 1 pcs Display Unit.
Sensor
4pcs/SET, include 3 pcs short circuit sensors and 1 pcs earth fault sensor. 3 pcs short circuit sensors respectively installed in A,B,C three phase Cable Line, 1 pcs earth fault sensor installed on the bifurcation unshielded part of three-phase cable.
Display Unit
Receive fault signal from sensors and display immediately as light flashing. The sensors and the display unit of the cable fault indicator is connected by the fiber optic.
Operation worked example
Short circuit indication
On detection of flowing current value exceed the fault sensitivity threshold, the Short circuit sensor will send fault signal through fiber optic to the Display Unit. The Display Unit of the underground cable fault locator will respond by light flashing in it.
Earth fault detection:
On detection of the zero sequence current value exceed fault sensitivity threshold, the indicator will send fault signal through fiber optic to the Display Unit. The Display Unit will respond by light flashing in the Underground Fault Indicators.

parameter
DYX-FF-Remote-Cable-Line-Fault-Indicator

China DJX-FF Cable Line Fault Indicator

DJX-FF Cable Line Fault Indicator Images

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