Earthing Fault Indicator
The GPJ-3100 series of short circuit and earth fault indicator is designed for testing and indicating short circuit and earth fault in real time. It is applied to monitor circuitry in RMU, overhead line, power cable distribution line, box-type transformer and other similar places. According to alarm signal showed by indicator, workers can figure out and cut off fault area rapidly when short circuit or earth fault occurring in the circuitry, so the system can recover supplying power for non-fault area promptly to save time and enhance efficiency.
Short circuit alarming
Earthing alarming
Auto reset
Test / Reset
Transmit alarming information remotely
Alarming indication with low voltage of the battery
Short circuit alarming current: 100A to 1000A time delay 40ms
Earthing alarming current: 20A, 30A, 40A, 50A, 60A ±10% time delay 40ms
Temperature range: -25℃ to +70℃
Humidity range: ≦95%
Earth lead length: 4m
Conduct optical fiber length 3.5m
Power supply: lithium battery 3.6V/2.45Ah
Auto-reset time: 7s, 2hrs, 4hrs, 8hrs
Output relay: 120V AC 1A, 30V DC 2A
Main controller dimension: 95x50x80mm
Cutting hole size: 91x44 mm
Protection class: Main controller: IP40, Sensor: IP65
High reliable MCU to get low consumption when monitoring.
Passive sensor.
Long-life lithium battery as power supply.
Three phases detect independently.
Used optical fiber to transmit short circuit signal, separate from high voltage, have good safety and high reliability.
Self-lock output relay.
