EPO (Emergency Power Off), this feature on UPS systems can cause many problems to the smooth running of the power protection installation.
The primary reason for having this feature is to enable the UPS system to be ‘made safe’ in the event of an emergency. Operation of the Emergency Power Off will, with most uninterruptible power supplies, stop the inverter and rectifier (charger) and disconnect the battery. Due to the economics of size and cost, in a number of cases operation of the EPO circuit may just stop the inverter.
A typical example of a situation when there is a need to remove power to equipment in an emergency situation is in the case of fire. An un-interruptible power supply by its very name means that when the building is isolated it will continue to provide an output until the batteries are exhausted. The continued supply of power in these situations can lead to additional fires as cables are damaged by the original cause. The EPO in this situation is often connected to the fire alarm panel and will operate on the second and subsequent detection of fire within a defined area.
One of the major problems with Emergency Power Off...
To view and download this full PLR article, you must be logged in. Registration is completely free. Once you create your account, you will be able to browse, search & downlod from our PLR articles database of over "1,57,897+" on 1,000's of niches and 200+ categories without paying a penny. Click here to signup...
