The AutorANGERTM overhead line fault indicator is easy to install and can quickly help maintenance personnel find the faulty line, thereby reducing fault detection time by more than 50% and greatly reducing losses caused by faults in power and industrial systems.

Characteristics and advantages
By automatically adjusting the action threshold, it is possible to reduce manpower, inventory, and improper application.  
Applied in any overhead line, it can automatically adapt to the system situation.  
It can distinguish between instantaneous faults and permanent faults, and tracks and records automatically eliminated faults.  
The closing impact load braking function can be used in conjunction with automatic reclosing.  
Intelligent and adaptive signal light brightness is adjusted according to natural light.  
Adopting the best battery energy-saving technology in the industry, the light flashes continuously for more than 2500 hours.  
The patented tilt descent braking function can prevent false indication after the circuit breaker is disconnected.  
Quick and easy installation, using an insulated rod without the need for additional clamps or bolts, and maintenance free.

Application and Troubleshooting
Applied to overhead power lines
Instantaneous faults provide an eight hour fault indication, allowing line personnel to troubleshoot the faulty section of the line.  
Investigate the lines that automatically clear faults and the lines that successfully reclose after tripping to improve the reliability of power supply.

Install and run
The AutorANGERTM fault indicator can be easily installed on overhead conductors through insulating rods for single-phase or three-phase applications. The fault indicator is equipped with a highly integrated microprocessor that continuously samples the load current in the system and automatically adjusts the threshold based on the sampled current value.
Instantaneous and permanent fault indication
After the fault occurs, the fault indicator flashes a red light to indicate a permanent fault. Subsequently, the fault indicator enters a two minute latch mode, allowing for reclosing and switching actions. Two minutes later, AutorANGERTM will detect the system voltage and load current to determine whether the fault is transient or permanent. If it is an instantaneous fault, the system voltage and system load current will reset. Otherwise, the red light indicating a permanent fault will display for 4 or 8 hours based on the current before the fault.
Day and Night Modes
Built in AutorAngelTM fault indicator with photoelectric sensor to detect natural light conditions. In daytime mode, the lights facing forward on both sides flash at maximum brightness to indicate a permanent fault. In night mode, the brightness of these two lights is reduced to save energy (as shown in the picture). In this mode, a set of built-in lights simultaneously illuminate the transparent housing of the entire indicator, ensuring visibility at a distance of over 1000 inches from the indicator and adapting to 360 degree angles. The pulse adjustment circuit with flashing lights optimizes brightness and battery life.

Technical indicators
Fault detection range: 50A to 1200A
Voltage applicable range: 4160V to 69kV
Maximum fault current: 25kA for 10 consecutive cycles
Temperature range: -40 ℃ to 85 ℃
Action response time: 24ms
Installation requirements for wires: diameter between 0.3 and 1.50 feet
Flashing reset time: 8 hours when the load current is between 50 and 100A; When the load current is between 200 and 1200A, 4 hours
Battery: 3.6V, 8.5Ah high-energy lithium battery, designed for a lifespan of 15 years
Flashing time: Over 2500 hours (650 4-hour flashing faults) Weight: 1.27 pounds (575 grams)

quality assurance
Designed according to IEEE-495 standard, with an eight year quality assurance

AutorANGERTM overhead line fault indicator