Remote HMI monitoring system for landscape type buried box transformer substation

Abstract

The invention relates to the technical field of power system control, and discloses a remote HMI monitoring system for a landscape type buried box transformer substation; the remote HMI monitoring system comprises an HMI and a PLC, the HMI comprises an RS232 communication port, the PLC comprises two RS485 communication ports, and the RS232 communication port of the HMI is connected with one RS485 communication port of the PLC through a 232 / 485 converter. The remote HMI monitoring system for the landscape type buried box transformer substation can be used for remotely monitoring the switch-on state of the landscape type buried box transformer substation, over-temperature and high-temperature alarms in a transformer and a lamp box, and electrical parameters such as current, voltage, electric energy quality and the like; meanwhile, the system automatically or remotely and manually performs switching operation on the controllable part in the box transformer substation according to the fed-back parameters; therefore, the workload and the working risk of manual maintenance of electric power are reduced, the timeliness of monitoring and troubleshooting of the power distribution network is improved, and finally the purpose of improving the reliability of power utilization is achieved.

Description

technical field [0001] The invention relates to the technical field of electric power system control, in particular to a remote HMI monitoring system for a landscape buried box-type substation. Background technique [0002] The landscape-type buried box substation is a new type of box-type substation that buries the transformer underground, reasonably installs the high and low voltage power distribution equipment in the limited above-ground space, and has both advertising and display functions. However, due to the compact space above the ground and the difficulty in the operation of buried transformers, the monitoring and control of temperature, water level, oil level and other data of this series of products has become more and more important. [0003] Conventional landscape buried substations mostly rely on independent temperature controllers, liquid level controllers, etc. for the collection and control of the above data, requiring maintenance personnel to open the light ...

AI Technical Summary

Problems solved by technology

[0004] Conventional landscape buried substations mostly rely on independent controllers for data collection and control of various box substations. This type of controller has a high degree of integration and limited volume, and the operation is cumbersome and independent of each other. It is difficult to operate without special instructions. , and the operation of the landscape buried box substation must open the advertising light box or open the pit for operation. It is inconvenient when only one person is debugging, inspecting, and operating. At the same time, the risk of manually operating live high and low voltage switchgear is also increasing. The more attention in the industry

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