I. Purpose and applicability:
The Automatic Protective Device of power terminal is developed with great efforts for the power supply management departments of China's urban power, rural power, and property. This product is recognized by science and technology as an innovative high-tech product with excellent market application prospects. It is essential for the Power Supply Department to manage, operate, and maintain the normal order of the power grid, it is the protector of safe use of electricity by end users. It can completely eliminate the abnormal loss of power grids, such as electricity theft and leakage, and ensure the normal operation of power grids. It also provides the automatic voltage protection function of mains to ensure safe use of household appliances. Fundamentally and effectively safeguard the legitimate economic rights and interests of both parties.
This product is mainly used for residential buildings, public institutions, general residential buildings, commercial office buildings, small and medium-sized commercial service enterprises, and other V mains users.
Ii. features:
Smart power theft prevention
The self-controlled electrical protection device is placed at the front end of the electric meter of V mains users, which can prevent all current electric theft. When electric theft occurs, the protection device will automatically interrupt the power supply, the power is automatically restored three minutes after the electric theft ends.
Automatic Leakage Protection
When there is leakage between the protective device and the electric meter, the power supply is automatically interrupted. After the protection is eliminated, the normal power supply is automatically restored three minutes later.
Automatic Overvoltage Protection
When the mains voltage is higher than V, the power supply is automatically interrupted. After the mains voltage returns to normal, the shield automatically restores the normal power supply to ensure safe use of household appliances.
Iii. specifications and technical parameters:
1. Operating voltage: 160v ~ 380 V 2. Rated current: 3A ~ 40a
3. Rated frequency: 50Hz ± 10% 4. Electric stealing sensitivity: ≥0.12a
5. Leakage sensitivity: ≥0.12a 6. overvoltage protection: ≥0. 260 V
7. latency protection: ≥ 180 s 8. Power Consumption: ≤ 0.3 W
9. Pressure Resistance: ≤ 420 V 10. Operating temperature:-20 ℃ ~ + 45 ℃
11. auxiliary electric meters: 3 ~ 40a mechanical power meter, electronic power meter, IC card power meter, carrier power meter, etc.
Iv. Working principle:
This product uses an intelligent electronic signal analysis and detection method to trigger any abnormal access behavior, such as electric theft, electric leakage, and overvoltage. The guard automatically enters the collection, identification, and judgment. When no trigger signal is triggered, the defender is in the working state (normal power supply). When the signal is triggered, the defender immediately enters the working state (interrupted power supply ). As long as the abnormal status of the power line is excluded, the defender can automatically restore the normal power supply.
