An integrated panel that shares the monitoring device with the AC power distribution panel, the DC power supply panel and the emergency lighting panel

Abstract

An integrated screen that shares a monitoring device with an AC power distribution screen, a DC power supply screen, and an emergency lighting screen, including: the monitoring device includes AC monitoring, module monitoring, DC monitoring, battery monitoring, main monitoring PLC, display touch screen, communication output and fault Signal contact output; AC monitoring, module monitoring, DC monitoring and battery monitoring are respectively connected to the main monitoring PLC through RS485, the display touch screen is connected to the main monitoring PLC through RS232, and the communication output and fault signal contact output are also connected to the main monitoring PLC respectively. PLC connection; AC monitoring is connected with the AC switching circuit, and the AC feed-out circuit is connected with the AC switching circuit; the AC feed-out circuit is respectively connected with the charging module, control module and inverter module of the DC circuit through RS485; the charging module is connected with the battery; the control The module is connected to the DC feed-out, and the battery is connected to the DC feed-out through a step-down silicon chain; the inverter module is connected to the lighting feed-out, and the battery is connected to the inverter module.

Description

technical field [0001] The invention relates to an integrated screen in which an AC power distribution screen, a DC power supply screen and an emergency lighting screen share a monitoring device. Background technique [0002] Such as figure 1 Shown is the existing AC power distribution panel AC switching control and display circuit. The two AC incoming lines from different substations are connected to the two AC incoming line switches 1QF and 2QF of the AC power distribution panel, and then the AC incoming lines are sent to the upper ends of the two AC incoming line contactors 1KM and 2KM through 1QF and 2QF. When the voltage of one of the AC incoming lines is normal, the voltage monitoring relay K1-K3 of this road is energized, and its power display indicator HL1-HL3 is lit, and at the same time, the AC incoming line contactor KM of this road is controlled to be energized and closed, and this One line of AC power is fed into the feed-out circuit. At this time, the working...

AI Technical Summary

Problems solved by technology

[0007] Since some current inverters are refitted from frequency converters, the DC input voltage is required to be higher than 500V, and the voltage of the charging module and the battery is required to be more than 500V. The battery needs 48 12V batteries connected in series to obtain the battery. The quantity is large, and the initial investment and subsequent maintenance costs of the substation are relatively high

[0008] Moreover, the inverter device of the existing emergency lighting screen is composed of separate components, which is not highly intelligent and cannot communicate with the host computer. The usual operation and maintenance also requires more human intervention, and the amount of normal operation and maintenance is relatively large.

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