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No. 6 Gongye North Road, Songshan Lake High tech Industrial Development Zone, Dongguan City, Guangdong Province
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Yishite Group Co., Ltd
EA890 series 80-500kVA
NegotiableUpdate on 12/03
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Overview
The EA890 series high-power UPS power supply is a new generation of pure online intelligent UPS power supply developed using new digital technology for the combination of China's power grid environment and high-end power consumption
Product Details
The EA890 series high-power UPS power supply is a new generation of pure online intelligent UPS power supply developed using new digital technology for the combination of China's power grid environment and high-end power consumption. The system adopts an online dual transformation topology design, completely eliminating interference from the power grid. The rectifier adopts three-level PWM rectification technology based on IGBT devices, achieving superior performance of high input power factor and low input current harmonics. The inverter adopts pulse width modulation technology based on IGBT devices and is equipped with an output isolation transformer, which enables the output of UPS to achieve stable frequency and voltage, low waveform distortion, strong load capacity, and strong impact resistance.
Rail transit, industrial process control applications, ISP Internet service providers, IDC data exchange center machine room, network management system/machine room, billing center, bank/bond settlement center, business server cluster, office automation, precision instruments and equipment, etc
●Intelligent digital control
Using high-speed microcontrollers to achieve real-time control, parameter setting, program management, self checking, and self detection functions, it can detect and protect all independent circuit connections on the circuit board from faults.
The application of advanced DDC (Direct Digital Control) technology, DSP (Digital Signal Processor) technology, and dedicated ICs endows the product with outstanding performance.
Advanced IGBT modules (Insulated Gate Bipolar Transistors) have excellent working characteristics such as high-speed switching, high voltage, and high current, high working efficiency, miniaturized driving circuits, and effectively improve the overall efficiency and reliability of the product.
● Allow 100% unbalanced work
Adopting three-phase independent modulation and full bridge inverter technology, it can provide normal and reliable power supply even when the three-phase load is 100% unbalanced.
Intelligent battery management function
Adopting an integrated design of rectifier/charger, parameters can be set through the operation interface according to the battery configuration capacity, and the charging current can be automatically adjusted by software. At the same time, battery automatic detection and charging/discharging interval time can be set according to the safety situation of the power grid to extend the battery service life.
Rich communication function interfaces
Built in RS232/RS485 communication port and multiple dry contact signal interfaces, truly realizing multi-purpose communication and remote monitoring.
●Powerful Chinese/English display interface
Using a large LCD touch screen as the main display interface, the display content can be selected and set in Chinese/English, and the running status, operating procedures, data collection, fault detection information, and other contents are clear at a glance.
● Complete protection functions
Equipped with multiple system protection functions, it can detect and alarm abnormal states such as overvoltage, undervoltage, overcurrent, overload, and short circuit, and has reliable protection functions with strong environmental adaptability;
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