As the construction of the electricity information collection system comes to an end, the power supply company has shifted from focusing on the construction of the collection system to analyzing electricity data in the substation area, calculating line losses, and verifying whether there is any leakage or theft. Accurately calculating line loss requires ensuring the accuracy and completeness of user data in the substation area. It cannot have user data from other substations, nor can it lack some user data from the local substation area. Otherwise, the calculation of line loss will deviate and be meaningless. The electricity information collection system currently has a large number of carrier centralized meter reading systems installed. Due to the complex wiring on site, it is impossible to fully identify and confirm the substation substation affiliation of all meters, thus making it impossible to accurately calculate the line loss in the substation area. To solve this problem, a device that can recognize the relationship between substations is needed.

The substation user identification device is a product developed by our company to solve the above problems. This product is based on the combination of modulated pulse current method and zero crossing group power carrier communication for substation identification. Long recognition distance, reliable and stable communication, with strong point-to-point communication capability; The recognition results are accurate, and even under adjacent distribution transformers, the occurrence of "common high voltage series lines, common cable trench series lines, and common neutral line series lines" is prevented; Not affected by communication time periods and changes in line impedance, it is convenient, fast, stable, and reliable to identify the user attributes and phase sequence of the substation.

Portable structural design, the instrument is lightweight, small in size, and easy to carry.

Multiple testing accessories to meet different on-site plug and play requirements and easy operation.

The number of hosts and extensions can be flexibly configured to achieve attribute and phase search for multiple distribution transformer users under complex conditions.

Using a dedicated signal selector for signal adjustment, accurate identification of substations can be achieved when adjacent substations share high voltage, common ground, and common cable trenches.

Connect the main terminal to the low-voltage side of the distribution transformer, install slave terminals at various detection points, implement multi-point routing between slave terminals, continuously send detection signals to the main terminal, and automatically identify the code and phase of the main terminal.

　　Working power supply:220V±20%

　　Host power consumption:8W

　　Extension power consumption:10W

　　Maximum instantaneous pulse current of handheld extension:5A

　　Environmental temperature:-20℃～60℃

　Relative humidity:≤90%

　　Working radius:2000m

Used to handle the situation of power equipment such as concentrators and meters being connected to each other in the substation area, solving problems such as low collection rate, unstable collection effect, and high line loss in the substation area caused by carrier crosstalk, incorrect ownership of meters or concentrators.