Shree Vijayvargiya Technologies Private Limited

Line interactive UPS systems are deployed mostly in rackmount applications below 5000 VA. They also have power filtering capabilities. Thus, line interactive UPS systems are able to correct the most serious long-term voltage sags or spikes without draining the batteries. As the line interactive UPS system reduces the number of transfers to the battery, the service life of batteries too is extended. ProstarM line interactive UPS systems are highly efficient, at around 97% when there are no other problems with the power line.

Galvanic isolation
In transformer based UPS system, the transformer works to step up the voltage at the inverter output, bringing it to a level that is compatible to generator supply voltage or the utility. However, the transformer is not exactly used to provide galvanic isolation. In case a total galvanic isolation is needed, in an isolation transformer UPS or a transformer-less UPS, an additional transformer is required in the circuit. The transformer should also have adequate insulation to prevent the high voltage in UPS output jumping between the windings. This also helps prevent a net DC output component.

Input isolation between mains and battery
This type of isolation is rare in modern times. It was found in early 1960s when open lead-acid batteries were commonplace. After maintenance-free lead-acid batteries and nickel-cadmium batteries came into use in 1980s, the use of input isolation in UPS systems saw a drastic decline.

DC component output isolation in online UPS with isolation transformer
In isolation transformer online UPS systems, the transformer isolates the DC circuit from the output load apart from stepping up the inverter output voltage. Thus it works to isolate the DC component generated by an inverter fault. However, the DC component generated by the inverter could reach the load if a bypass component fails. This is because in such a case, the bypass supply does not pass through the transformer, which is a drawback of the isolation transformer based UPS system.

Benefits of isolation transformer in UPS system
Online UPS with isolation transformer isolates the load from power source and provides better protection from power surges. Isolation transformers also help convert the voltage to a level best suited for the load. This is especially necessary if the voltage of the UPS system differs from the voltage requirement of the load. An isolation transformer can step the voltage up of down according
to the need of the load. Inbuilt isolation transformers within the UPS system also help reduce fault
current, enabling smooth working of the connected equipment Isolation transformer have played a big role in data centre UPS systems. In data centers, online UPS with isolation transformer are a part of power conversion circuit. The UPS systems serve to reduce harmonics, efficiently resolve ground loops with multiple generators or mains sources, and help tackle high or low voltage issue.

ProstarM provides reliable and high-performing Modbus card for UPS. The conversion card can be used to connect the UPS to the RS485 trunk to accomplish the integrated management of different devices. Our Modbus cards for UPS come with reliable security and communication features enabling the user to Use Modbus protocol to communicate with protocol conversion equipment through RS485 and accomplish the conversion between UPS EA protocol and Modbus/RS485/TCPIP.

Distributed UPS Centralized Monitoring & Management Solution

Distributed UPS centralized monitoring and management solution, it solve the difficulty of centralized monitoring & management which have multiple branches or with wide distribution, also provide administrators with an efficient, safety, stable and intelligent monitoring & management platform.

Advanced Features for Maximum Performance

Industry-Leading and State-of-the-Art Electronic Technology

• All CSTBT Circuit (IGBT) Topology- Innovative Circuit Concept
• Advanced NPC Multilevel Technology
• Advanced Control System
• DC-to-DC Chopper charging circuit, extending battery and capacitor life.

Green-Oriented Design

• World leading AC-AC Efficiency > 96% without compromise
• High Efficiency across full load spectrum

High Reliability through Redundant Configuration (Easy Expansion)

• Paralleled up to eight UPS modules for increased capacity and redundancy.
• A Hybrid Static-Bypass Switch
• Modular & redundancy with each UPS module features its own static bypass and control circuitry
• Output Voltage Regulation handling 100% step loads without requiring battery support.