3500 Watt Pure Sine Wave UPS Inverter

Pure Sine Wave UPS Inverter Output Sockets (Optional)

Pure Sine Wave UPS Inverter User Manual

Tips: What are the types of UPS?

• Standby (Offline) UPS: Also known as passive backup UPS, this type involves an inverter connected in parallel between the mains power and the load. The inverter serves as a backup power source. Under normal conditions, the load receives power directly from the mains. The inverter remains inactive, and the battery is charged by an independent charger. When a mains power failure occurs, the load is seamlessly switched to the inverter, which then supplies the power.
• Line-Interactive UPS: In this type, the inverter is connected in parallel between the mains and the load, functioning both as a backup power source and a charger for the battery. The inverter's bidirectional operation interacts with the mains power. When the mains power is available, the load is supplied with conditioned mains power, and the inverter chargers the battery, acting as an AC/DC converter. During a mains power failure, the inverter switches to DC/AC conversion mode, providing power to the load. Line-interactive UPS systems offer high efficiency, ease of implementation, and maintenance. They provide improved voltage regulation and are suitable for environments where power quality is relatively stable but requires some level of conditioning, such as in small to medium-sized business networks. These systems are ideal for use in network environments, distributed power systems, and applications where space and cost constraints are important.
• Online (Double Conversion) UPS: The double conversion UPS inverter is the most robust type, providing the highest level of power protection. It continuously converts incoming AC power to AC and then back to AC, ensuring a pure sine wave output. The continuous double-conversion process isolates the load from all power irregularities. When mains power is present, the UPS rectifies AC to DC to charge the battery and then inverts DC back to AC to power the load. In the event of a mains failure, the battery seamlessly takes over without any transfer time, continuing to supply power through the inverter. This type offers superior performance with excellent voltage and frequency regulation, reduced harmonic distortion, and the ability to handle a wide range of power disturbances. The online UPS is also capable of hot-swappable battery replacement and can be configured for parallel redundancy. While traditionally less efficient for small capacities (below 10kVA, with efficiencies around 85%), advancements in technology have significantly improved efficiency ratings in modern units. Online UPS systems are critical for environments requiring uninterrupted and clean power, such as data centers, medical facilities, industrial applications, and mission-critical infrastructure.