A lighting over-voltage protection method and system for remote computer room AC power input

Abstract

The invention discloses a lightening overvoltage protection method and a system for AC power inputs in far-end machine rooms. The system comprises a power environment monitoring system and an AC power switch; the AC power switch is connected in series between the AC power input end and the input end of an AC distributing box inside a far-end machine room; the control end of the AC power switch isconnected with the switch control signal output end on a monitoring device; a monitoring center, which gains lightening pre-alarm information from local meteorological divisions for the machine rooms, launches control instructions to the monitoring device in sequence through the communication transmission devices and communication access devices; the monitoring device can launch an execution command to the AC power switch in accordance with the control instruction, in order to control switching off or on of the AC power switch. With the help of the power environment monitoring system and utilizing an isolated insulation mode, the invention can protect such communication devices as power sources, monitors, transmissions, exchanges, accesses, base stations and etc in machine rooms as well as air-conditioners, lighting apparatuses and so on, from being impacted via lightening overvoltage from AC power source lines.

Description

Lightning overvoltage protection method and system for remote computer room AC power input technical field The invention relates to the technical field of lightning overvoltage protection, in particular to a lightning overvoltage protection method and system for inputting AC power in a remote communication room or a base station powered by a DC power supply unit containing an animal battery pack. Background technique According to the statistics of lightning strikes in various communication equipment rooms, at present, more than 60% of lightning failures in remote equipment rooms and communication base stations are caused by lightning overvoltage introduced by AC power supply. At present, the AC power input of the communication room mainly adopts the equipotential principle for lightning overvoltage protection. As shown in Figure 1, for a single-phase AC power supply, overvoltage protection is achieved by installing a Class B surge protector in the AC distribution box and ...

AI Technical Summary

Problems solved by technology

The purpose of this method is to provide a lightning overvoltage protection method and system for AC power input in a remote computer room, which overcomes the impact of subsequent equipment in the existing equipotential protection technology due to the lightning overvoltage on the AC power line being introduced into the computer room It also solves the defects of reliability in the existing technology, and reasonably solves the problem of impact damage to various electronic communication equipment in the computer room caused by the lightning overvoltage introduced by the AC power line of the remote computer room

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