Current, beijing Olympic Games has entered real ground to pour timing level, a lot of relevant preparatory jobs are in of height begin and perfect in, every link of concerned Olympic Games is seen very again by people. The power cut incident of Jin Mao edifice of near future Shanghai let the view of source of people correspondence urgent telegram go up again a step, take the system of lash-up power source of Beijing Olympic Games seriously particularly more rise.

Still perhaps have causes of a lot of person correspondence urgent telegram this word idea is a little new, actually EPS lash-up power source is to allow short when the unit of lash-up power source that power source discontinues (EPS: Emergency Power Supply) . Regard power source of fire control lash-up as the system, when building happening fire, its serve as the negative charge of one class power supply with scattered illume and main other to provide centralized power supply, when communication town report is regular, by communication town report casts device to give important load power supply through each other, after communication town report cuts off the power, each other will cast device instantly cut to inverter power supply, power supply time is decided by the capacity of accumulator, when town report voltage restores, lash-up power source will restore to be town report power supply.

EPS lash-up power source basically uses SPWM (communication arteries and veins takes modulation) technology, basically include rectification charger, accumulator group, inverter, each other casts the part such as device to comprise, among them inverter is core, the action of rectifier is turn alternating current into dc, implementation is reached to accumulator to inverter module power supply; The action of inverter is dc commutation becomes alternating current, supply load equipment stabilizes persistent electric power, each other casts device to make sure load reachs inverter to output the successful switch between in town report; Systematic controller is right whole department
All undertakes real time monitoring, can issue signal of give an alarm, can pass serial mouth and computer or Modem join at the same time, realize the personal computer monitoring to power supply system and long-range monitoring.

Land please: ? of pole of uncut jade of Mian Lai white browses more information

At present a few enterprises design the power source of lash-up of EPS fire control of development for measure of fire control lash-up technically, the advanced sex with be had certain and practical, it can realize processing of personal computer monitoring, personal computer completely, it is entirely automation, modular, offset prevents lash-up illume, rolling door, the fire control establishment such as fire lift, water pump, smoke extractor exhaust fan implements automation. Current, this product is built for a few large high levels more, the project such as word, important place uses the airport, telegraphic office building, its are specific have the following character:
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