The product quality of an excellent power supply manufacturer determines the long life of UPS products.
The second is the battery in UPS. Its life is much shorter than that of UPS, so it needs to be maintained.
What are the precautions when using UPS?
1) The operating environment of UPS should be well ventilated to facilitate heat dissipation and keep the environment clean. ?
2) Do not bring inductive loads, such as money counters, fluorescent lamps, air conditioners, etc. , to avoid damage. ?
3) 3) The output load of UPS should be controlled at about 60% for the highest reliability. ?
4) The light load of UPS (such as 1000VA UPS) may cause deep discharge of the battery and reduce the service life of the battery, which should be avoided as far as possible. ?
5) Proper discharge helps to activate the battery. For example, if the commercial power is not used for a long time, the commercial power will be cut off artificially every three months, and UPS will be used to discharge with load, which can prolong the service life of the battery. ?
6) For most small UPS, turn on UPS after work, avoid starting with load when starting, and turn off UPS after work; For the UPS in the network room, since most networks work 24 hours a day, UPS must also run all the time. ?
7)UPS should be charged in time after discharge to avoid battery damage due to excessive self-discharge. ?
ABU series UPS data
Schematic diagram of ABU-33 series uninterruptible power supply
Circuit description:
1, master switch? : supply power to the rectifier and keep it off when working.
2. Standby bypass power switch: it provides bypass power and is always closed when working. Usually, the bypass switch is closed first to provide reference power for PLL.
3. Battery switch: provides battery protection and control, and is always closed when working.
4. Output switch: controls the output of UPS, but it does not work when maintaining bypass mode.
5. Maintenance of bypass power switch: It can only be closed when UPS is maintained or the inverter stops working, so as to realize online maintenance.
Color status: cyan → normal working mode? Blue → Bypass working mode?
Purple → battery working mode? Red → Online Maintenance Mode
Circuit description:
①? ABU series has two primary inputs, which can be connected to the dual power supply system, one enters the rectifier system and the other enters the standby bypass system, and the inverter tracks the bypass (phase locked loop).
②? Silicon controlled full-bridge rectifier has the characteristics of typical power frequency machine, high reliability and surge resistance. Input soft start and harmonic current suppression circuit are adopted.
③? The DC power supply passes through the filter circuit, on the one hand, it enters the storage battery for charging, on the other hand, it is supplied to the inverter.
④? The sixth generation IGBT full-bridge inverter circuit adopts DDS (direct digital waveform generator) technology, and the inverter outputs alternating current to the output isolation transformer (class H).
⑤? The output power supply is output to the equipment load through the filter circuit.
⑥? High-speed microprocessor and programmable logic device control circuit unit are the core of system control, including detection, alarm, storage, display and phase-locked loop circuit, which can handle all operating States of UPS at high speed.
Selenium rectifier
Using soft start and harmonic suppression technology, the typical power frequency machine characteristics have achieved excellent input performance: the range of input power supply can reach 25%, and DC ripple is ≤2%.
Three-phase full-bridge inverter
ABU-33 100 waveform at full load.
Using DDS waveform synthesis, the sixth generation IGBT (with lower saturation voltage drop and smaller control power) technology brings excellent output performance:
Stabilizing accuracy
Bistatic switch
Two-way static switching of main bypass provides more stable emergency protection, and the main bypass switches each other for 0 seconds.
Intelligent charge and discharge management circuit
Intelligent charger design:? Reasonable charging current can be set according to different battery capacities, providing two charging modes, namely floating charging and even charging, and charging in two stages of constant current and constant voltage, thus prolonging the battery life and keeping the battery in a fully charged state.
Intelligent discharger design: according to the actual load and the current of the battery, the low protection voltage level of the battery can be flexibly adjusted. In order to extend the delay time of customers as much as possible, and at the same time ensure that the battery works in the best state (but discharges). And that service life of the battery is prolon.
Characteristics of ABU series UPS power supply
All-digital core UPS: High-speed microprocessor and programmable logic device control circuit unit are the core of system control, full intelligent control, rectification, charging, inverter, phase-locked loop, display and protection circuit. All parameters can be set by software without potentiometer adjustment, which avoids parameter drift caused by factors such as transportation, vibration and aging of components, and comprehensively improves the reliability and consistency of UPS.
Control core circuit board
Advanced input performance: adopting soft start and harmonic suppression technology, typical power frequency machine characteristics, achieving excellent input performance: the input power range can reach 25%, DC ripple is ≤2%, and the pre-generator only needs 1.3~ 1.5 times UPS capacity.
Excellent output performance: DDS waveform synthesis and the sixth generation IGBT technology (lower saturation voltage drop and smaller control power) bring excellent output performance;
Stabilizing accuracy
Electrical isolation in the whole city: output class H isolation transformer to provide users with comprehensive electrical isolation.
Intelligent battery management: the maximum charging power is 20% of the rated power, and different charging current settings can be made according to different capacity batteries, all of which are intelligent conversion of floating charging and automatic environmental temperature compensation, which greatly improves the service life of batteries; Regular battery self-inspection and automatic maintenance can be set, and the endurance can be improved by more than 30%.
Humanized operation interface: multi-point LED graphic mode, which directly reflects the current operation mode and state of UPS. Large screen, full Chinese LCD touch screen, computer operation mode, pop-up window, which can visually check the operation parameters of each module and set the system operation.
Modular design and layered air duct structure design of the system: ABU series divides the system into strong current circuits (including rectifier/charger, inverter and static switch) and weak current circuits (including auxiliary power supply, main control circuit, drive circuit, digital core circuit and display and communication interface circuit), all of which adopt modular design, and the system structure is clear at a glance; The layered air duct design is adopted, and the core power devices, magnetic components, filter circuits and weak current circuits are cooled and supplied by different air ducts. Strong wind is used in strong electric heating area and weak wind is used in weak electric heating area, which optimizes the heat dissipation effect, saves energy and improves the reliability of fans in weak electric heating area.
Advanced self-diagnosis function: all-round detection of wearing parts, fans, fuses, air switches and contactors; Temperature detection of transformer, power module and inductor.
Internal redundancy technology: ABU series designs key components such as auxiliary power supply, fan, communication interface and system status display in 1+ 1 mode. If the equipment is damaged, UPS will still operate normally and provide alarm notification for replacement, which greatly improves the reliability of the single machine.
High power density and beautiful appearance design: Epps power supply combines practicality and beauty, and designs the power frequency machine to the size of a high frequency machine. The installation size is smaller than that of most brands of UPS in the market, with exclusive patented appearance.
Electricity meter?
Power (KVA)? Volume = width * depth * height (mm)
10、 15、20、30? 480*955*952
40、60? 600*855* 1340
80、 100、 120? 1000*855* 1852
160、200? 1400* 1000* 1852