CN204904553U - Middling pressure switching of power controller and power supply system - Google Patents

Abstract

The utility model provides a medium-voltage power switching controller and a power supply system, wherein the medium-voltage power switching controller includes a processor, a number of Ethernet ports and a number of RS485 interfaces, and the processor is connected to each Ethernet port and each RS485 interface. The interfaces are electrically connected, and the processor is used to forward the data transmitted between each RS485 interface and each Ethernet interface. The medium-voltage power switching controller provided by the utility model completes data transmission between the RS485 interface and the Ethernet port through a processor. The power supply system provided by the utility model realizes the data transmission between the measurement control equipment and SCADA through the medium-voltage power switching controller. Compared with the SCADA, the medium-voltage power switching controller is closer to the measurement control equipment, so the wiring is relatively modern. The technology is simple and convenient, and the signal transmission stability is good.

Description

Medium voltage power switching controller and power supply system

technical field

The utility model relates to the field of electric power, in particular to a medium-voltage power switching controller and a power supply system.

Background technique

The medium-voltage power switching controller is mainly used in the power supply system to monitor the working status of the two power supplies. When the common power supply is undervoltage, loses voltage or power failure, it controls the power switch to switch the load circuit from the normal power supply to the emergency power supply. When the normal power supply returns to normal Timely control the power switch to switch the load circuit from the emergency power supply to the normal power supply to ensure continuous and reliable operation of important loads.

In existing large-scale power consumption places, such as power supply systems such as power plants and shopping malls, the communication between SCADA (data acquisition and monitoring control system) and measurement and control equipment is realized through the RS485 (smart instrument) interface. Due to the distance between SCADA and measurement and control equipment It is relatively far away, and there are usually many measurement and control equipment, which will cause the problems of complex communication line wiring and poor signal propagation stability. In addition, the existing medium-voltage power supply switching controller can provide few external communication interfaces, and cannot realize the communication between the measurement equipment and SCADA or other modules.

Utility model content

The technical problem to be solved by the utility model is to provide a medium-voltage power switching controller in order to overcome the defect that the medium-voltage power switching controller in the prior art cannot realize the communication between the measuring equipment and SCADA.

The utility model solves the problems of the technologies described above through the following technical solutions:

The utility model provides a medium-voltage power switching controller, which is characterized in that it includes a processor, several Ethernet ports and several RS485 interfaces, the processor is electrically connected with each Ethernet port and each RS485 interface, and the The processor is used to forward the data transmitted between each RS485 interface and each Ethernet interface.

Preferably, the Ethernet port is an optical port.

Preferably, the Ethernet port is an electrical port.

The utility model also provides a power supply system, which is characterized in that it includes the above-mentioned medium-voltage power supply switching controller, SCADA, a display module, and several measurement and control devices; the SCADA and the display module are respectively switched with the medium-voltage power supply Different Ethernet ports of the controller are electrically connected; the plurality of measurement control devices are respectively electrically connected to different RS485 ports of the medium-voltage power switching controller.

Preferably, the display module is a touch screen monitor.

Preferably, the transmitted data is voltage, current, frequency, power or the switch operation state of the measurement control device.

Preferably, the measurement and control equipment is a power factor controller, an electric meter or an intelligent protection measurement and control device.

The positive progressive effect of the utility model is that: the medium-voltage power switching controller provided by the utility model completes the data transmission between the RS485 interface and the Ethernet port through the processor. The power supply system provided by the utility model realizes the data transmission between the measurement control equipment and SCADA through the medium-voltage power switching controller. Compared with the SCADA, the medium-voltage power switching controller is closer to the measurement control equipment, so the wiring is relatively modern. The technology is simple and convenient, and the signal transmission stability is good.

Description of drawings

FIG. 1 is a schematic diagram of a switching controller of a medium voltage power supply according to a preferred embodiment of the present invention.

FIG. 2 is a schematic diagram of a power supply system in a preferred embodiment of the present invention.

Detailed ways

A preferred embodiment is given below, and the utility model is described more clearly and completely in conjunction with the accompanying drawings.

As shown in Figure 1, a medium-voltage power switching controller 1 includes a processor 3, two Ethernet ports 2 and three RS485 interfaces 4, and the processor 3 is connected to each Ethernet port 2 and each RS485 interface 4 Electrically connected, the processor 3 is used to forward the data transmitted between each RS485 interface 4 and each Ethernet interface 2. In this embodiment, one Ethernet port 2 is an optical port, and the other Ethernet port 2 is an electrical port.

As shown in Figure 2, this embodiment also provides a power supply system, including the above-mentioned medium voltage power supply switching controller 1, SCADA5, display module 6 and three measurement control devices 7; the three measurement control devices 7 are power factor Controller, electricity meter and intelligent protection measurement and control device. SCADA5 and display module 6 are respectively electrically connected to different Ethernet ports 2 of medium voltage power switching controller 1; wherein, SCADA5 is connected to Ethernet port 2 which is an optical port, and display module 6 is connected to Ethernet port 2 which is an electrical port connect. The three measurement control devices 7 are respectively electrically connected to three different RS485 interfaces 4 of the medium voltage power switching controller 1 . In this embodiment, the display module 6 is a touch screen monitor.

In this embodiment, the meter transmits the measured data including voltage, current and frequency to the SCADA 5 and the display module 6 through the connected power switching controller 1 for their use or display or further other operations. The power factor controller transmits the measured power value and the like to the SCADA 5 and the display module 6 through the connected power switching controller 1 . The intelligent protection measurement and control device transmits the measured switching operation status of the device to the SCADA 5 and the display module 6 through the connected power switching controller 1 .

Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present utility model, but these changes and modifications all fall within the protection scope of the present utility model.

Claims (7)

1. a medium-voltage power switching controller is characterized in that, comprises processor, some Ethernet ports and some RS485 interfaces, and described processor is electrically connected with each Ethernet port and each RS485 interface, and described processor uses For forwarding data transmitted between each RS485 interface and each Ethernet interface. 2. The medium-voltage power switching controller according to claim 1, wherein the Ethernet port is an optical port. 3. The medium-voltage power switching controller according to claim 1, wherein the Ethernet port is an electrical port. 4. A power supply system, characterized in that it comprises a medium-voltage power switching controller as claimed in claim 1, a SCADA, a display module, and several measurement and control devices; the SCADA and the display module are respectively connected with the medium-voltage Different Ethernet ports of the power switching controller are electrically connected; the plurality of measurement control devices are respectively electrically connected to different RS485 interfaces of the medium voltage power switching controller. 5. The power supply system according to claim 4, wherein the display module is a touch screen monitor. 6 . The power supply system according to claim 4 , wherein the transmitted data is voltage, current, frequency, power or the switching operation state of the measurement control device. 7 . 7. The power supply system according to claim 4 or 5, wherein the measurement and control equipment is a power factor controller, an electric meter or an intelligent protection measurement and control device.