CN204156604U - A kind of Multifunctional power distribution automatization terminal - Google Patents

Abstract

The utility model discloses a kind of Multifunctional power distribution automatization terminal, comprise power module, output module, intake acquisition module, communication module, CPU module and analogue collection module, be interconnected by bus board between each module, power module provides power supply for other module, the signal collected is sent to CPU module by the DC quantity collecting part in power module, intake acquisition module, analogue collection module, monitoring result is uploaded to background computer by communication module by CPU module, and CPU module drives and outputs module deciliter circuit breaker simultaneously.The features such as it is high that this terminal has certainty of measurement, and system safety is stablized, flexible and convenient to use.

Description

A multifunctional power distribution automation terminal

technical field

The utility model relates to a power distribution automation terminal installed in a switch station, a power distribution room, a ring network cabinet and a box-type substation of a feeder circuit of a power distribution network.

Background technique

The loads in the distribution network are complex and changeable, the wiring modes vary from place to place, and due to the characteristics of power distribution, the power grid is often in a three-phase unbalanced state, and the supporting facilities of the distribution network in my country are not complete. This series of factors It has caused problems such as many faults in the distribution network, many accidents, long power outages, low power supply reliability, and poor power quality. With the development of social economy, users' ability to withstand power outages is getting weaker and weaker, and they have higher requirements for power supply quality and reliability. Distribution automation terminals can greatly improve the reliability of distribution network operation, improve power quality, reduce the labor intensity of electric workers, and make full use of the capabilities of existing equipment.

Invention content

The purpose of this utility model is to provide a multifunctional power distribution automation terminal for real-time monitoring and control of various state parameters of primary equipment installed in 10kV and above distribution networks. The technical solution is: including a power supply module, an output module, a binary input acquisition module, a communication module, a CPU module and an analog acquisition module, each module is connected to each other through a bus board, and all external interfaces are connected through a universal pluggable The plug-in board is open to the outside world. The power module provides power for other modules. The DC flow acquisition part, binary input acquisition module, and analog quantity acquisition module in the power module transmit the collected signals to the CPU module. The CPU module transmits the collected signals to the CPU module through the communication module. The monitoring results are uploaded to the background computer, and at the same time, the CPU module drives the opening and closing circuit breaker of the module.

The terminal is installed in component cabinets such as switch stations and ring network cabinets. The terminal function modules are flexible and configurable, and the number of input, output, and analog acquisition modules can be selected according to the actual needs of the project site. The terminal has the characteristics of high measurement accuracy, safe and stable system, flexible and convenient use, etc. It provides a new way for the distribution automation terminal required by the State Grid.

Description of drawings

Fig. 1 is a block diagram of the utility model;

Fig. 2 is a schematic diagram of the external structure of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 1 and Figure 2, the utility model includes a power supply module 1, an output module 2, an input quantity acquisition module 3, a communication module 4, a CPU module 5 and an analog quantity acquisition module 6, and each module is connected by a bus board They are connected to each other, and all external interfaces are opened to the outside world through common pluggable boards. The power supply module 1 provides power for other modules. The DC flow acquisition part in the power supply module 1, the binary input quantity acquisition module 3, and the analog quantity acquisition module 6 transmit the collected signals to the CPU module 5, and the CPU module 5 transmits the collected signals through the communication module 4. The monitoring results are uploaded to the background computer.

When the terminal is running, the binary input signal and circuit voltage signal enter the terminal through the binary input acquisition module 3 and the analog acquisition module 6; this method will not affect the internal electrical structure of the primary device, which not only ensures the integrity of the sensor signal, It also avoids the electrical interference caused by the direct connection between the terminal and the primary equipment. When the terminal monitors through the analog quantity acquisition module 6 that a failure such as overcurrent or overvoltage occurs in the primary device, the terminal CPU module 5 will drive the opening and closing circuit breaker of the output module 2. After the opening and closing are successful, the binary input quantity acquisition module 3 will The circuit breaker displacement information is sent to the CPU module 5. At the same time, the CPU module 5 organizes and analyzes the data sent by each acquisition module and processes it through a series of advanced computer algorithms to determine the corresponding fault type, and then communicates the judgment result to Module 4 is uploaded to the main station computer in the form of serial port or Ethernet port after conversion.

Claims (1)

1. A multifunctional power distribution automation terminal, including a power supply module (1), an output module (2), a binary input acquisition module (3), a communication module (4), a CPU module (5) and an analog acquisition module (6), characterized in that: the modules are connected to each other through the bus board, and all external interfaces are opened to the outside world through a common pluggable plug-in board, the power supply module (1) provides power for other modules, and the power supply module ( 1) The DC flow acquisition part, the binary input acquisition module (3), and the analog quantity acquisition module (6) transmit the collected signals to the CPU module (5), and the CPU module (5) transmits The monitoring results are uploaded to the background computer, and the CPU module (5) drives the opening and closing circuit breaker of the output module (2).