SFI-1 type fault indicatorDetailed product description：

Introduction to SFI-1 Fault Indicator:

The SFI-1 fault indicator is an automatic fault detection device developed and produced by Shanghai Heyu Company, which can detect short-circuit faults. After testing by the National Electric Power Equipment and Instrument Inspection and Testing Center, all technical indicators have reached an advanced level. This product is widely used for overhead use. It can accurately identify faulty lines and fault points, with stable performance, high accuracy, strong anti-interference ability, beautiful appearance, and easy installation.

Function and Features:
Fault indication: During normal operation, the window is displayed in white; When a short circuit fault occurs, the window is displayed in red.
Automatic reset: After the power supply is restored to the line, the fault indicator will automatically reset. The reset time can be selected by the customer according to the line environment, patrol length, department requirements, etc.
1. Live loading and unloading: Live loading and unloading are extremely simple and do not affect the operation of the line.
2. Provided technical means for identifying hidden fault points.
3. Quickly identify the faulty line and fault point to shorten the troubleshooting time.
4. Accurately indicating instantaneous faults is beneficial for eliminating power supply hazards.
5. Avoid the impact of traditional multiple line pulling and closing patrols on power equipment.
Detection principle:
Short circuit section: Current detection will only indicate when a short circuit occurs, the current suddenly increases, and the switch trips.
Structural characteristics:
1. A circuit board composed of the latest digital circuits, combined with imported components such as dedicated chips and microcontrollers.
2. The card wire structure is made of magnetic material and treated with nickel plating, with extremely strong magnetic conductivity and strong corrosion resistance.
3. The display part adopts red fluorescent paint, which has strong visual appeal and can clearly indicate under low light conditions at night. It also does not fade under long-term outdoor ultraviolet radiation.
4. High strength and high perspective aviation materials are used for one-time molding, and after special chemical technology treatment, the perspective is better, anti pollution and anti-aging.