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Line Interactive UPS Systems 

The line-interactive UPS isin operation to a standby UPS, but with the addition of a multi-tap variable-voltage autotransformer. This is a special type of transformer that can add or subtract powered coils of wire, thereby increasing or decreasing the magnetic field and the output voltage of the transformer. This is also known as a Buck–boost transformer
This type of UPS is able to tolerate continuous undervoltage brownouts and overvoltage surges without consuming the limited reserve battery power. It instead compensates by automatically selecting different power taps on the autotransformer. Depending on the design, changing the autotransformer tap can cause a very brief output power disruption, which may cause UPSs equipped with a power-loss alarm to "chirp" for a moment. This has become popular even in the cheapest UPSs because it takes advantage of components already included. The main 50/60 Hz transformer used to convert between line voltage and battery voltage needs to provide two slightly different turns ratios: One to convert the battery output voltage (typically a multiple of 12 V) to line voltage, and a second one to convert the line voltage to a slightly higher battery charging voltage (such as a multiple of 14 V). The difference between the two voltages is because charging a battery requires a delta voltage (up to 13–14 V for charging a 12 V battery). Furthermore, it is easier to do the switching on the line-voltage side of the transformer because of the lower currents on that side.
To gain the buck/boost feature, all that is required is two separate switches so that the AC input can be connected to one of the two primary taps, while the load is connected to the other, thus using the main transformer's primary windings as an autotransformer. The battery can still be charged while "bucking" an overvoltage, but while "boosting" an undervoltage, the transformer output is too low to charge the batteries.
Autotransformers can be engineered to cover a wide range of varying input voltages, but this requires more taps and increases complexity, and expense of the UPS. It is common for the autotransformer to cover a range only from about 90 V to 140 V for 120 V power, and then switch to battery if the voltage goes much higher or lower than that range.
In low-voltage conditions the UPS will use more current than normal so it may need a higher current circuit than a normal device. For example, to power a 1000-W device at 120 V, the UPS will draw 8.33 A. If a brownout occurs and the voltage drops to 100 V, the UPS will draw 10 A to compensate. This also works in reverse, so that in an overvoltage condition, the UPS will need less current.
 Line Interactive UPS Available with us :
 
      
Make & Model
Short Specifications
Product Link
APC UPS - BX600C-IN
600VA APC UPS for Desktop / Laptops / Modems* / Routers*
APC UPS - BE700Y-IND
 700VA APC UPS for Desktop / Laptop
 APC UPS - BE800-IN
 800VA APC UPS for Desktop / Laptop
 APC UPS - BR1000G-IN
 1000VA / 1KVA APC UPS for Multiple Desktops /Laptops
 APC UPS - BR1500G-IN
 1500VA / 1.5 KVA APC UPS for Multiple Desktops /Laptops
 APC UPS - BR11000C-IN
 1100VA / 1.1 KVA APC UPS for Multiple Desktops /Laptops
 APC UPS - SUA750I-IN
 750VA APC UPS for Desktops /Laptops, Industrial Applications
 APC UPS - SUA1000I-IN
 1000VA / 1 KVA APC UPS for Desktops /Laptops, Industrial Applications
 APC UPS - SUA1500I-IN
 1500VA /1.5 KVA UPS for Desktops /Laptops, Industrial Applications
 APC UPS - SUA2200I-IN
 2200VA /2.2 KVA UPS for Desktops /Laptops, Industrial Applications
 APC UPS - SUA3000I-IN
 3000VA /3.0 KVA UPS for Desktops /Laptops, Industrial Applications
 
External Battery Models
 
 APC UPS - SUA1000UXI
  1000VA /1.0 KVA UPS for Desktops /Laptops, Industrial Applications
 APC UPS - SUA2200UXI
  2200VA /2.2 KVA UPS for Desktops /Laptops, Industrial Applications
 APC UPS - SUA3000UXI
  3000VA /3.0 KVA UPS for Desktops /Laptops, Industrial Applications
 
 External Battery Models for Mixed Load / Lighting Load
 
 BI850SINE-IN
 850VA Home UPS with Sine Wave for Lighting / Mixed Load (12V input)
 BI1500SINE-IN
1500VA Home UPS with Sine Wave for Lighting / Mixed Load (24V )
1000 / 2000VA Home UPS with Sine Wave for Lighting / Mixed Load (24V )
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