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NE Series (20-30kVA)
User Manual
Chapter 2 Overview
2.2.1
Features
The main features of NE Series (20-30kVA) UPS are as follows.
Energy conservation and high efficiency
Adopt advanced IGBT technique, which make the input power factor of UPS more than 0.99, and
greatly improve the electric energy use ratio, alleviate the load on power grid, save costs.
Digitized DSP control
The UPS uses a digital signal processor (DSP) for quickly and precisely controlling contravariance,
synchronizing phases, input power factor correction (PFC) and logics.
Intellectual fans speed regulation control
Fans adjust rotating speed in accordance with the load status to prolong the using life of fans and
decrease working noise of the machine.
ECO energy conservation mode design
The UPS has an ECO energy conservation mode. In this mode, bypass output is prior and the efficiency
of UPS is up to 97%; when the voltage or frequency deviation of bypass is excessive, UPS switches to
the inverter output mode. It not only ensures a reliable power supply for users but also saves energy.
Manual bypass maintenance design
Design bypass maintenance channel to assure the maintenance on machine without load power break.
High EMC performance
The NE Series UPS has passed professional tests on electromagnetic compatibility (EMC), including
conducting disturbance, radioactive disturbance, conducting anti-disturbance, radioactive anti-
disturbance, power falling, mass impulse, static discharging, surge, etc. The predominant EMC
characteristics can not only completely filter all kinds of disturbances on the power grid but also
efficiently reduce and eliminate the disturbance produced by the UPS itself. The UPS can be applied
to high frequency communication, broadcasting audio and video systems.
