Smart electricity meters as terminal devices of smart electrical networks are gradually entering our daily lives. However, existing external circuit breakers for electric meters can only automatically turn off the power in case of debt, and after payment requires manual activation. In this regard, power grid companies incur huge maintenance costs, but the problem of timely restoration of power supply remains unresolved, which significantly reduces the quality of service to consumers.
Smart electricity meters as terminal devices of smart electrical networks are gradually entering our daily lives. However, existing external circuit breakers for electric meters can only automatically turn off the power in case of debt, and after payment requires manual activation. In this regard, power grid companies incur huge maintenance costs, but the problem of timely restoration of power supply remains unresolved, which significantly reduces the quality of service to consumers. The WTXZ-80 series external circuit breaker (with internal rotating shaft) for electric meters produced by our company not only reliably provides automatic shutdown when in arrears and automatic turn on after payment, but also effectively protects lines and terminal equipment while transmitting on and off state signals at the same time. The product meets the requirements of the technical regulations of the State Grid Corporation of China “Q/GDW11421-2015 Technical specifications for external circuit breakers for electric meters”, as well as the technical regulations of the South China Electric Grid Corporation “Technical specifications for external low-voltage circuit breakers for electric meters with payment control”.