Uninterruptible Power Supply (UPS)

UPS, an Uninterruptible Power Supply, also Uninterruptible Power Source, is an Electrical Apparatus that provides Emergency Power to a load when the Input Power Source, typically mains power, fails. UPS is typically used to protect Hardware such as Computers, Data Centres, Telecommunication Equipment or other Electrical Equipment where an Unexpected Power Disruption could cause Injuries, Fatalities, Serious Business Disruption or Data Loss.

Uninterruptible Power Supply or UPS is normally regarded as the ultimate solution to power problems by providing both uninterrupted Power Backup and Power Conditioning. It protects the load from all AC Utility supply anomalies i.e. Blackouts, Brownouts, Surges, Spikes, Sags etc.



There are several different UPS topologies that provide varying degrees of protection. Selecting the best fit depends on several factors, including the level of reliability and availability desired, the type of equipment being protected and the application/environment. While all four of the most common UPS topologies outlined below meet the input voltage requirements for IT equipment, there are key differences in how the result is achieved, as well as the frequency and duration of demands on the battery.

Standby UPSs allow equipment to run off utility power until the UPS detects a problem, at which point it switches to battery power to protect against sags, surges or outages. This topology is best suited for applications requiring simple backup such as small office/home office and point-of-sale equipment.


Line-interactive UPSs actively regulate voltage either by boosting or decreasing utility power as necessary before allowing it to pass to the protected equipment or by resorting to battery power. Line-interactive models are ideal for applications where protection from power anomalies is required, but the utility power is relatively clean. MDF and IDF communication closets, non-centralized server and network rooms, and general IT enclosures are ideally suited for this topology.


Online UPSs provide the highest level of protection by isolating equipment from raw utility power—converting power from AC to DC and back to AC. Unlike other topologies, double conversion provides zero transfer time to battery for sensitive equipment. This topology is best applied to mission-critical equipment and locations where power generally is poor.


Ferro resonant UPSs operate similarly to line-interactive models with the exception that a ferro resonant transformer is used to condition the output and hold energy long enough to cover the time between switching from line power to battery power which effectively meansa no-break transfer. Many ferro resonant UPSs are 82-88 percent efficient and offer excellent isolation. Although no longer the dominant type of UPS, these robust units are still used in industrial settings such as the oil and gas, petrochemical, chemical, utility and heavy industry markets.


We GMDT offer the reliable, compact, efficient, wide range of Uninterrupted Power System (UPS).

GMDT UPS various Models are in line with the client requirements with such Brands are EATON, Vertiv (Emerson) , APC, Numeric, BPE, Microtek, Luminous, Uniline etc...

Capacity of UPS: We provide built in battery models available from 600VA/1000VA up to 6KVA. External battery UPS models are available from 1KVA to up to 1500KVA.

UPS are available in 1ph: 1ph, 3ph: 1ph and 3ph: 3ph.

Wide Input Voltage range are available ± 10% of rated voltage rating.

UPS are available on both 50Hz or 60Hz frequency.

Wide range of UPS applications: PC, Workstation and Home AV UPS, Network and Server UPS, Marine & Industrial UPS.

Industrial UPS:

Continuity of process control is critical across a wide range of Industrial segments: Water/Waste Water, Biotech / Pharmaceutical, Transportation, Chemical, Food & Beverage, Semiconductor, Automotive, Renewable Energy. Equipment utilized in these segments is often subjected to harsh environments including wide temperature ranges or air characteristics with elevated moisture and salt content. GMDT offers a range of UPS solutions for industrial control applications including communication accessories for dry contact I/O, Modbus and network management. During a power event, whether the requirement is safe shutdown or maintaining data integrity, the GMDT industrial UPS solution provides reliable protection.


High availability, ruggedized power protection for shipboard and other transportation applications

Mobile applications present their own unique challenges. Resilience to elevated levels of vibration, conformance to international maritime regulations, enhanced electric hazard protection and ruggedized enclosure are just a few features that are commonly required in mobile applications. GMDT offers customized solutions to meet the demanding requirements for marine, shipboard and other mobile applications.

GMDT offers the largest selection of power management and protection solutions available in the industry. From the desktop to Data centres, from AC-powered to DC-powered equipment, GMDT is one-stop solution provider for all your power needs.