Business Continuity systems - Uninterruptible Power Supplies

Uninterruptible Power Supplies (or UPS) are devices that maintain a constant supply of power to the equipment connected to it.

Business Continuity systems - What is a UPS?:- although a standby generator can be considered a UPS within its own right (as a UPS system is defined as any device that enables equipment to remain operational when ain power is interrupted), we are talking about a device which provides the power bridge between the moment the mains power fails and the moment the diesel generator is able to accept the full load. UPS units also protect equipment from power surges and sags.

UPS systems fall into two major categories:

1. Off-line, or line interactive - this device automatically switches from the mains power source to its own power source in case of a power failure. It maintains the equipment temporarily powered until the mains power supply is running again or its own power source runs out.
2. Online - this device constantly draws power when the mains is working and stores it (e.g. using batteries). Should a power cut occur, it will convert the stored DC power into AC power.

Both these systems are typically backed up by a standby generator.

Standby generators are not to be confused with Uninterruptible power supplies. Standby generators do not protect the devices they are connected to from the undesirable features of power failure: the surges, sags, or any other momentary interruption. However, standby generators can assist a UPS in the event of lengthy power failures over and above the storage capacity of the UPS system's batteries. The two systems are normally incorporated to provide a continuous power solution.

Uninterruptible power supplies will protect your sensitive electrical and IT equipment from power disturbances such as lightning surges and faults on the electric delivery system or power lines. By installing a UPS system, your IT servers can be safely switched off or, if a diesel generator is available, they can safely transition from one source of power to the other without affecting your operations or your expensive equipment. Even just a slight drop in power or a surge can cause considerable loss and disturbance through lost work, data and valuable time; an uninterruptible power supply will protect you from all these problems.

What size UPS do I need?

The UPS rating is the maximum amount of volt*amps it can deliver in a power failure - the VA rating: volts*amps. If you choose a UPS with too small a VA rating, you will not be able to power your equipment. It is always best to err on the side of caution as having capacity for future expansion is always a good idea. Contact our technical support team at Business Continuity Systems for a free analysis of your power protection needs.