Online Transformer Based UPS

Introduction

AF8900 series Online Transformer Based UPS 3 phase input and 3 phase output, with a single unit capacity ranging from 10KVA to 400KVA, is a high-performance sine wave uninterruptible power supply system designed for large-scale critical application systems such as data processing centers, host systems, manufacturing and telecommunications equipment, and medical equipment. Its high availability and high reliability provide important power protection for large-scale critical application systems. This series of UPS uses double-conversion pure online IGBT technology and high-speed DSP digital processors to ensure stable voltage and frequency sine wave output.

Application

Transportation, medical treatment, chemical industry, education, manufacturing, enterprise, computer equipment, precision instruments and equipment, etc.

Feature

Fully digital control technology

●The application of advanced digital control technology has broken through the technical bottleneck of the industry, replaced the traditional analog control circuit with a digital logic control system, and achieved extraordinary innovation.

●Under the digital control technology system, high-speed DSP digital processors and programmable logic devices are used to make the control circuit, parameter setting and operation management more perfect, self-checking

●And the self-detection function is more powerful.

Excellent performance indicators

●Using advanced 6th generation IGBT technology to comprehensively improve the working efficiency of the inverter, making the UPS temperature rise lower and more reliable;

●Fully meet the transition from 0 to 100% load without switching to bypass, and ensure stable and reliable output;

●Adopt new vortex fan, excellent heat dissipation performance, variable speed and energy saving;

High reliability design concept

●The double conversion online topology design makes the UPS output a pure sine wave power supply with frequency tracking, phase locking, voltage stabilization, noise filtering, and no interference from power grid fluctuations.

Provide more comprehensive protection for user devices.

●N+1 redundant fan variable speed cooling system ensures system safety after failure of vulnerable parts.

●The standard output isolation transformer has strong load impact resistance and short circuit protection capabilities, achieving a zero-ground voltage value of 0V.

●Built-in manual maintenance bypass switch further improves the reliability of continuous operation of the load.

●Reliable fool-proof control switch. The UPS input, output and maintenance bypass switches all use linkage signal detection. Users can open and close various control switches at will.

The UPS will automatically switch working status and will not cause power abnormality due to the user's disorderly closing of the control switch.

Convenient information processing technology

●User-friendly 7-inch touch screen LCD+LED interface design, optional Chinese and English, intuitive and clear operation status flow chart, intelligent icon touch buttons.

●Rich UPS operation data, historical event records and multi-level fault code display highlight the user-friendliness of information processing.

●Input the password through the panel to set the input voltage range, thereby reducing the frequency of battery use and greatly extending the battery life.

●Set the output voltage by entering the password on the panel to meet the voltage requirements of different devices.

Advanced digital parallel control technology

◆ Digital circulating current control technology ensures that the UPS in parallel have the same frequency, phase and voltage, greatly reducing the circulating current between parallel UPS and comprehensively improving the reliability of the parallel system.

●Utilizing advanced digital parallel control technology, it can provide parallel operation of up to 8 units.

●Parallel UPS can share the same battery pack, saving investment.

Reliable protection function

●It has the function of self-diagnosis at startup to avoid the risk of failure caused by UPS hidden dangers.

●With AC input surge protection, overvoltage/undervoltage protection; output overload/short circuit protection; inverter and rectifier overtemperature protection; battery undervoltage warning protection; battery

Overcharge protection; various protection functions such as multiple fuses and circuit breaker protections greatly ensure the stability and reliability of system operation.

Technical parameters (10~100KVA)

Technical parameters (120~400KVA)