A UPS is a protective equipment that mitigates the effects of undesirable power supply anomalies such as power outages, sags, surges, harmonics, etc.

The basic function of a UPS is back-up power. When the input power fails or goes out of tolerance, the UPS will switch to stored energy, usually battery power, to maintain uninterrupted power supply to the connected load.

Having a right type of UPS protects sensitive equipment and critical operations against costly damages by absorbing some level of power surges, eliminating line noise, providing clean and uninterrupted power to equipment during line sags and outages. Some UPSs can initiate automatic shutdown of compatible IT loads during long power outages.

A UPS typically consists of 3 internal sections which are the Rectifier / Charger, Energy Storage Medium / Battery, and Inverter. The Rectifier / Charger converts AC to DC and charges the battery while the Inverter section does the conversion from DC to AC.

More simply, a UPS has internal batteries which guarantee that continuous power is provided to your equipment in the event of power failure or outage. The UPS will provide power for a few minutes if it is designed for basic back up, or longer (up to several hours) if designed for extended autonomy.

Electricity flows in two ways: either in an alternating current (AC) or in a direct current (DC).

The difference between AC and DC lies in the direction in which the electrons flow. In DC, the electrons flow steadily in a single direction, or “forward”, while in AC, electrons keep switching directions, in one instant going “forward” and then going “backward” in continuous cycles.

An AVR is an acronym for Automatic Voltage Regulator, an equipment that regulates voltage levels to connected equipment. It accepts power from the main source, regulates it to acceptable limit before passing it to the connected load or equipment.

The primary function of a UPS is to provide temporary backup power when the primary input source fails or goes out of acceptable tolerance, to enable you save your work or change to a secondary power source. A Voltage Stabilizer on the other hand is an equipment that maintains mains voltage to your equipment at pre-set levels.

If your utility input voltage is abnormally high or low, the AVR will regulate it to within acceptable limits before passing it onto your load or UPS.

You will list all equipment to be protected by the UPS or Stabilizer, check the current and coltage ratings as well as the operating power for each device, then apply a practical load factor, and make provision for a safe headroom for peak levels or possible future load addition. It can be rather technical and may require the input, analysis or advice of trained personnel. You may wish to contact us to take this stress off you via a technical audit, at <support@powerex-limited.com>

Make a detailed observation of the fault condition. Send an email request to <support@powerex-limited.com> with a description of the fault, your Company name, address, and telephone contact.

Product enquiries should be directed to CRM@powerex-limited.com

Send an email to support@powerex-limited.com. Our Technical Support team will provide assistance for installation, troubleshooting, and answers to questions about your Eaton and Vectronic products.