Protecting and measuring integrated comprehensive distribution box

Abstract

The invention discloses a protecting and measuring integrated comprehensive distribution box. A distribution transforming monitor terminal comprises an analog acquisition module, a digital signal processor, a CPU, a clock module, a digital memory, an I / O module and a communication module. The analog acquisition module is connected with the CPU through the DSP. The clock module, the digital memory, the I / O module and the communication module are respectively connected with the CPU. The distribution transforming monitor terminal further comprises a control interface, a state quantity acquisition interface and a communication interface. A reactive compensation switch, an inlet line switch, a control power switch, a feeder line switch and a reactive compensation device are connected with the distribution transforming monitor terminal through the interfaces. The protecting and measuring integrated comprehensive distribution box can integrally monitor and manage a distribution transformer and a low-voltage distribution power grid in a telemetering mode, a telecommand mode, a remote regulating mode and a remote control mode, and can automatically coordinate and adjust the action modes and operation modes of various devices in the distribution box according to factors such as fault types, fault ranges and the urgent degree.

Description

technical field [0001] The invention relates to an integrated distribution box, in particular to an integrated integrated distribution box for protection, measurement and control. [0002] Background technique [0003] At present, the automation level of the low-voltage agricultural network is still in its infancy, and the integrated application of protection, measurement and control of the low-voltage distribution network is almost blank. The promotion and application of the State Grid Corporation's "Electricity Information Collection System" has installed distribution transformer monitoring terminals and smart meters in the distribution station area, and has gradually realized the remote monitoring of electricity, voltage, current, and power in the distribution station area, and realized Remote meter reading for low-voltage power users. According to relevant materials and reports, the pilot projects of distribution transformer stations in some areas have re...

AI Technical Summary

Problems solved by technology

The disadvantages of this patented technical solution are: the measurement information of the distribution transformer terminal cannot be directly related to the protection and control functions of the incoming line switch and other switches, the low-voltage incoming line switch cannot be remotely controlled and automatically controlled, and it cannot be connected with each outgoing line switch according to the fault type. , scope and other situations, it is impossible to intelligently isolate faults and adjust loads for the entire distribution station area; each automatic device in the distribution box does not have a reliable and stable control power supply, resulting in low reliability

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