CN203760864U - Automatic distribution-network pole-mounted switch cabinet capable of remote monitoring - Google Patents

Abstract

The utility model provides a distribution network automation pole-mounted switch cabinet with a remote monitoring function, which includes a cabinet body, and a controller, a plurality of circuit breakers, a voltage and current acquisition module, a rechargeable power supply module, a switch, and an optical fiber transceiver are arranged in the cabinet body. The circuit breaker is electrically connected to the power distribution terminal, the voltage and current acquisition module is electrically connected to the distribution line; the optical fiber transceiver is connected to the switch, the rechargeable power supply module is used for power supply, the circuit breaker, the voltage and current acquisition The power supply module, switch and wireless communication module are all connected to the controller. The utility model can realize the communication between the on-column switch cabinet and the power distribution master station through various methods such as optical fiber, cable and wireless, and the power distribution master station can know the three-phase voltage, current and other analog quantities of the on-column switch at any time, and the on-column switch Location, power supply information, etc., and at the same time, it can remotely control the opening and closing of the switch on the pole and the activation of the battery in the rechargeable power module to improve the automation level of the distribution network.

Description

Distribution network automation pole-mounted switchgear with remote monitoring function

technical field

The utility model belongs to the field of electric power systems, in particular to a pole-mounted switchgear for distribution network automation with a remote monitoring function.

Background technique

Distribution network automation is the use of computer technology, automatic control technology, electronic technology, communication technology and new high-performance power distribution equipment and other technical means to conduct offline and online intelligent monitoring and management of the distribution network, so that the distribution network is always in the Safe, reliable, high-quality, economical and efficient optimal operation status. Its ultimate purpose is to improve the reliability and quality of power supply, shorten the time for handling accidents, reduce the scope of power outages, improve the economy of power distribution system operation, reduce operation and maintenance costs, maximize the economic benefits of enterprises, and improve the efficiency of the entire power distribution system. Improve the level of management and work efficiency, and improve the level of service for users.

Distribution network automation system generally includes distribution main station, distribution substation, distribution remote terminal (FTU, DTU, TTU, etc.) and communication network. The power distribution main station is located in the city dispatching center, and the distribution substation is deployed in the substation. The main station is responsible for communication with each substation, and the distribution substation is responsible for communication with power terminal equipment such as DTU/TTU/FTU in the area under its jurisdiction.

At present, after continuous transformation and development of power grids in various places, the number of connections and segments in the middle of distribution lines is increasing, and the lines are becoming more and more complex. Relying on the switch on the column can realize that the switch will automatically trip when the line is overloaded or faulty. Power outage protection grid security. However, the current switch on the pole has no communication equipment, and the opening/closing status information of the pole-mounted switch cannot be monitored remotely, which has caused great difficulties for timely repair and restoration of power supply.

Utility model content

The utility model aims at the deficiencies of the above-mentioned prior art, and provides a distribution network automation column switchgear with a remote monitoring function. The distribution network automation column switchgear can remotely monitor the switch on the column in real time.

The utility model is achieved through the following technical solutions:

A pole-mounted switchgear for distribution network automation with remote monitoring function, comprising a cabinet body, the cabinet body is provided with a controller, a plurality of circuit breakers, a voltage and current acquisition module, a rechargeable power supply module, a switch, an optical fiber transceiver and a wireless The communication module, the circuit breaker is electrically connected to the power distribution terminal, the voltage and current acquisition module is electrically connected to the power distribution line; the optical fiber transceiver is connected to the switch, the rechargeable power supply module is used for power supply, the circuit breaker, voltage The current acquisition module, the rechargeable power supply module, the switch and the wireless communication module are all connected with the controller.

With such a setting, the communication between the switchgear on the column and the main power distribution station can be realized conveniently through various methods such as optical fiber, cable, and wireless. The position of the upper switch, power information, etc., can effectively detect the short circuit fault and ground fault of the distribution line, and at the same time, it can remotely control the opening and closing of the switch on the pole and the activation of the battery in the rechargeable power module to improve the automation level of the distribution network.

Further, the circuit breaker is a circuit breaker equipped with an electric operating mechanism.

With such a setting, the switch on the pole is transformed from a traditional load switch into a circuit breaker with an electric operating mechanism, and is electrically connected to the power distribution terminal, which can effectively shorten the scope of power outages, effectively avoid transient faults, and improve power supply reliability.

Further, the voltage and current acquisition module includes a voltage transformer and a current transformer.

With such a setting, analog quantities such as three-phase voltage and current of the distribution line can be measured conveniently.

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

Description of drawings

Fig. 1 is a structural block diagram of a switchgear on a distribution network automation pole according to the utility model.

Detailed ways

As shown in Figure 1, the utility model provides a distribution network automation pole-mounted switchgear with a remote monitoring function, including a cabinet body in which a controller, a plurality of circuit breakers, a voltage and current acquisition module, a charging type power supply module, switch, optical fiber transceiver and wireless communication module, the circuit breaker is electrically connected to the power distribution terminal, the voltage and current acquisition module is electrically connected to the power distribution line; the optical fiber transceiver is connected to the switch, and the charging A power supply module is used for power supply, and the voltage and current acquisition module includes a voltage transformer and a current transformer. The circuit breaker, the voltage and current acquisition module, the rechargeable power supply module, the switch and the wireless communication module are all connected with the controller. The circuit breaker is preferably a circuit breaker with an electric operating mechanism.

Among them, the cabinet adopts IP65 high-protection design, and the cabinet and circuit breaker are connected by high-protection aviation plugs. The rechargeable power module has the advantages of small size, high conversion efficiency, stable performance, primary and secondary side isolation, and high isolation strength. Power grid adaptability, 220V nominal input, can work in a wide range of input voltage. In addition, it has an intelligent charging function, which can charge an external 24V battery. When the AC power is cut off, the battery can supply power to the load uninterruptedly, and has the protection function to prevent the battery from over-discharging; it has the status display of the power supply; it has the battery activation function, which can Activate and maintain the battery manually or automatically through external signals.

The utility model can conveniently realize the communication between the on-column switch cabinet and the power distribution master station through various methods such as optical fiber, cable and wireless, and the power distribution master station can know the three-phase voltage, current and other analog quantities of the on-column switch at any time. The position of the upper switch, power information, etc., can effectively detect the short circuit fault and ground fault of the distribution line, and at the same time, it can remotely control the opening and closing of the switch on the pole and the activation of the battery in the rechargeable power module to improve the automation level of the distribution network.

The utility model is not limited to the above-mentioned specific implementation methods, and those skilled in the art can implement the utility model by adopting other various specific implementation modes according to the disclosed content of the utility model. Do some simple changes or modified designs, all fall into the protection scope of the present utility model.

Claims (3)

1. A distribution network automation pole-mounted switchgear with remote monitoring function, characterized in that it comprises a cabinet, and the cabinet is provided with a controller, a plurality of circuit breakers, a voltage and current acquisition module, a rechargeable power supply module, and a switch , an optical fiber transceiver and a wireless communication module, the circuit breaker is electrically connected to the power distribution terminal, the voltage and current acquisition module is electrically connected to the power distribution line; the optical fiber transceiver is connected to the switch, and the rechargeable power supply module is used for Power supply, circuit breaker, voltage and current acquisition module, rechargeable power supply module, switch and wireless communication module are all connected with the controller. 2. The distribution network automation pole-mounted switchgear with remote monitoring function according to claim 1, wherein the circuit breaker is a circuit breaker equipped with an electric operating mechanism. 3. The distribution network automation pole-mounted switchgear with remote monitoring function according to claim 1, wherein the voltage and current collection module includes a voltage transformer and a current transformer.