Fault indication: by LED (blue: TF; red: PF; yellow: battery low voltage)

• Communication: wireless communication.

• Remote operation: remote parameter setting, control and measurement.

• Easy installation: installed on the power line directly by hot stick.

• Changeable battery: lithium battery can be changed easily.

• Main structure: clamp structure, body and transparent cover, can withstand

long time aging, high temperature and high humidity.

• Application: used for fault detection in the overhead system.

Line Voltage Up to 46kV

Temperature Range -40ºC to 85ºC

Maximum Operation Voltage 46kV, 50/60 Hz

Withstand Current and Duration 25kA/170ms

Reset Time 4hrs/6hrs/8hrs/12hrs/24hrs

When short circuit fault or earth fault occurs, fault indicators in front of the fault point will flash or turn flag to indicate the fault, the indicators behind the fault point will not indicate the fault. The operator can identify the fault area (between the last flashed indicator and the first non-flashed indicator) by following the flashed indicators. It can help operator to find out the fault point quickly.

The Di/Dt principle is used for fault determination and indication. When fault occurs, the current flow in the line will increase suddenly, the internal magnetic field will change, and the fault indicator will determine the fault based on surge value and duration of the short circuit current.

CREAT is the first company to detect the earth fault with signal injection method by assistance of a device called signal source, and the earth fault accuracy is improved greatly after using the signal source.

The fault indicator is designed and tested as per IEEE 495-2007 international standard.