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Main functions and characteristics

HPLC, Bluetooth, RS485 communication;

High-precision AC sampling;

Power supply relationship topology identification;

Meter box management;

Electricity theft warning;

Power outage event reporting;

Line loss analysis and judgment;

Terminal temperature detection;

Fault automatic diagnosis;

Overvoltage protection, undervoltage protection, phase loss protection, Overload long delay, short circuit short delay, short circuit instantaneous three-stage protection function;

Through the distribution area fusion terminal or TTU analysis and transmission of cloud data, the data can be viewed in real time and the circuit breaker can be controlled on SGCC platform, and big data analysis can be used to help the construction of power grid operation and distribution, economic efficiency improvement, and power safety.

Technical parameter

1、Current

250A
2、Uplink communication

Built-in interconnection HPLC communication module, working frequency 0.7~12M
3、AC sampling accuracy

The measurement error of electrical parameters such as voltage and current is better than 0.5% , and the measurement accuracy is 0.5s
4、Line loss calculation interval

Minimum 15mins
5、Bluetooth

supports point-to-multipoint communication
6、Storage capacity

Maximum 32MBytes
7、Communication protocol

Support DL/T 645-2007, DL/T 698.45 and other protocol
8、Local serial interface

2 RS485, interfaces A1 and B1 are local maintenance ports; A2 and B2 are meter reading ports
9、Number of poles

3P/3P+N
10、Rated working voltage

AC400V
11、Rated insulation voltage

AC1000V
12、Rated impulse withstand voltage

8KV
13、Flying arc distance

≤50mm
14、Rated ultimate short-circuit breaking capacity

36kA
15、Rated operating short-circuit breaking capacity

25kA
16、Protection characteristics

Three-stage protection : overload long delay, short circuit short delay and short circuit instantaneous
17、Overvoltage protection threshold

Single phase 253V-286V
18、Undervoltage protection threshold

Single phase 154V-187V
19、Mechanical life

≥8000 Tims

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