Online UPS System

We offer highly efficient online ups system (400-d). The liebert super 400d offered by us is a true on-line sine wave ups system that provides the user with clean computer grade power for continuous operation of critical load, regardless of any disturbance on the upstream ac power. The system offers many innovative features to give the user maximum reliability and flexibility at the lowest operating cost. With liebert super 400d ups system, we assure complete peace of mind. features & benefits

• full digital signal processing using the latest dsp technology
• parallel operation for redundancy
• wide input voltage range
• low current harmonic distortion of less than 5%
• unity lnput power factor
• high overload and short-circuit capacities
• compatible with engine generators
• high reliability for maximum system availability
• handles 3:1 crest factor loads
• intelligent battery management
• lcd display and i/iimic panel for real-time information
• output isolation between ups and critical load
• temperature compensated battery charging to enhance the battery life
• battery test facility
• inverter output short circuit protected
• rectifier output short circuit protected
• reverse phase sequence operation
• auto re transfer facility
• alarms can be stored in the memory
• dsp and dual microprocessor based system

igbt rectifier employing the latest rectifier technology, the super 400d igbt rectifier offers an input power factor of greater than 0.99, and input current distortion of less than 5%. Therefore it does not pollute the input utility supply or other devices sharing the same utility source. igbt inverter high speed igbt inverter gives low output distortion and clean sinusoidal waveform for excellent performance and high reliability. digital signal processing the super 40od uses the most advanced dsp technology. Using high sampling rate possible only with dsp, the system parameters are tightly controlled and maintained throughout various modes of operation. battery management proper testing, charging, discharging and management of the battery system is a very important aspect of the ups control system. In the super 400d ups, the batteries are constantly monitored by an intelligent battery management algorithm. paralleling capability the super 400d can be paralleled for redundancy. The units can also be installed in a hot-standby configuration for added reliability and flexibility. . wide input voltage range the super 400d features a wide input voltage range which can accept upper input limit of+15% and can have a lower input limit of- 25%, while still maintaining the specified output stability. This is extremely useful in very poor input power supply situations as the battery energy is not utilized and can be preserved for more prolonged outages. reverse phase sequence operation in a situation where the input phase sequencing is not consistent, the ups automatically adjusts itself and gets synchronized with the input phase. This feature prevents the battery energy thereby improving backup time and life of the battery.