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What is UPS ?

Uninterruptible Power Supply (UPS) is an electrical apparatus that provides battery backup when the electrical power fails or drops to an unacceptable voltage level.

What is Sine Wave and Square Wave UPS ?

Sine wave inverter output is very close to the AC current. It is very pure form compared to Square wave output. Many devices gets heated up if you use on Square wave inverter and make humming noise too.

offline ups

Offline UPS

The Offline UPS, also called standby power system, monitors the power line and switches to battery power as soon as it detects a power failure or an abnormal voltage in main power source. Here, the main power is as such given out to the connected appliances though there is a considerable voltage (150V – 270V in Inverters & 180V – 250V in UPS) variation in the main power source. It turns to UPS mode by breaking the mains, only if the main supply voltage crosses the minimum and maximum limits, safeguarding the connected appliance.

online ups

Online UPS

Online UPS's take the incoming AC mains supply and convert it to DC which feeds the battery and the load via inverter. Here, output voltage is maintained constantly since it is from UPS all the time. Online UPS is expensive when compared to Offline UPS but safer to use with delicate appliances like servers.

Solar UPS

Sukam Solar

Solar energy is the most abundant, renewable energy source in the world. This Solar energy is converted into direct current electricity by using Solar Photovoltaic (or PV) modules. However, the cost of solar in relation to other fuel sources is a barrier to adoption. Additionally, sunlight varies depending on geographic location, season, and time of day, which all creates limitations. Though the cost of Solar UPS is higher than a regular UPS, it is 100% worthy where the power consumption is high during day times since the maximum power consumption is directly from solar energy and can save upto70% of electric charges.

Choosing a UPS

It is very important to choose the right UPS based on the requirement. Always prefer a UPS to support the appliances used during the peak hours. For instance, if your peak hour load (at around 7 pm when all the required Lights, Fans, TV etc.. are used), and if the total load is about 800VA, then prefer a UPS which can support 1000VA load for a trouble free service. Also, the backup duration is considerable, which actually depends on the battery.

What we do?

Though we are not manufacturers, since 2005, having expertise of all applications of UPS, thoroughly study the requirement of any customer and suggest the best suitable unit to serve their purpose within their budget. We deal with all types of top brand UPS like Su-kam, Luminous, Microtek, Eastman, Exide, Amaron, etc


A battery is a device that produces electrons through electrochemical reactions, and contains positive (+) and negative (-) terminals. A UPS /Automotive battery consists of 6 electrochemical cells of 2V each, connected in series for giving out a total of 12V output.

Types of Batteries

Wet Cell – This is the most basic lead acid battery. This type of battery vents gases during charging and discharging and requires periodic addition of water to the electrolyte. By design, wet cell batteries are of different types.

1. Flat Plate Battery

A battery cell consists of two lead plates a positive plate covered with a paste of lead dioxide and a negative made of sponge lead, with an insulating material (separator) in between.

Flat Plate Battery Structure

2. Tubular Battery

A tubular battery uses technology that seals the active material in polyester tubes called gauntlets, instead of pasting it on the surface of the plate. As a result, there's no shedding or corrosion, ensuring long battery life. As a result, in applications which require a long service life, tubular plate batteries provide the best and most reliable power for the money spent. The tubular plate design delivers energy faster, has at least 20% more electrical capacity, and up to a 30% longer service life than flat plate.

  • Short Tubular
  • Jumbo Tubular
  • Tall Tubular – Tall containers with less maintenance, longer life and high on price.

The flat plate battery life is lower compared to the tubular battery as the shedding of active material is low in tubular batteries. Tubular batteries also have a greater ability to produce and accept current compared to a flat plate battery. The flat plate batteries are usually more resistant to heat.

Tubular battery structure
Tubular positive plate batt types

3. Sealed Maintenance Free (SMF) / (VRLA) Valve Regulated Lead Acid Battery

This is mostly online UPS systems as more number of batteries are used for it. The term sealed is somewhat misleading, as it means that the battery vents only if the cell is abused by overcharging or high temperature operation. The vents open only under excessive internal pressure. By nature of the design a valve regulated battery effectively controls generation of gases and allows gas recombination within the battery of over 99% of the gases generated in normal usage For all types maintenance consists primarily of equalising charging and water replenishment. As the name implies Maintenance Free Batteries require no water be added during their operational life.

VRLA Battery Structure

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