UPS uninterrupted power supply. To put it simply, it is an uninterrupted power supply containing an energy storage device with inverter as the main component.It is mainly used to provide uninterrupted power supply for single computers, computer network systems or other power electronics equipment.It is also widely used in various fields such as mining, aerospace, industry, communications, national defense, hospitals, and emergency lighting systems.
Uninterrupted power maintenance
1. Municipal electricity is completely normal.After turning on, the cause of the failure state is mostly due to the failure of the municipal electricity. The municipal power fails to send it into the UPS. You should first check whether the power insurance tube (generally 3-5A) after the machine is disconnected.AC -wire circuit, including power switch, circuit board, plug -in plug -in, pressure -sensitive resistance, sampling transformer, etc.[Example 2] Failure phenomenon SKS-500 UPS cannot enter the stabilization state after connecting AC power, but is in a reversal state.After analyzing and repairing the machine, it was found that the power insurance pipe had been replaced by a bolt (many of the insurance pipes of the UPS were φ6 × 30mm, and the commercially available insurance pipes were generally φ5 × 20mm.Cant buy the right insurance tube, like to use some other metal items instead), then check the inner circuit of the machine, and find that the connection plug -in between the power switch and the line board has been dark.Copper foil in the line board has been burned out.Dig the damaged part, remove the damaged plug -in, weld the power switch lead directly to the corresponding solder joints of the circuit board, and then replace it with a 3A power fuse tube. After booting, the work is normal.
Uninterrupted power brand
First of all, you need to know whether you are used by home or company enterprises.UPS is divided into online type, online interactive and reserve.Under normal circumstances, the company uses a backup, and the companys enterprises and institutions use online.Secondly, the price: From 100 to 600, the online machine is even higher.Of course, the longer the battery life, the higher the price.The brands of uninterrupted power supply include: Shante, APC, Anders, Li Xun, Nanhai Shante, American Shante, etc.
Principles of uninterrupted power supply work
UPSs uninterrupted power supply immediately switched to the battery inverter state; in order to prevent market electricity from switching back and forth, only when the city electricity recovered to 170-270V, UPS was transferred to the market inverse state.The purpose of the detection and control detection of the citys electronic frequency is to be used as the basis for the inverter lock. By adjusting the inverter phase of the inverter, the inverter phase is adjusted, so that the inverse output in the municipal power state isBasically the same frequency and the same aspect.When the municipal power is turned on, UPS detects the frequency of the input of the market as the frequency of the inverter output; when the battery is turned on, the frequency of the inverted output is set to set the frequency of the above output.When the city electricity is normal, execute the lock phase, and the inverter is the first to chase the electro -frequency of the city. After the frequency is the same, the phase is tracked.After the phase is locked, the phase difference between the inverter and the municipal power is less than 3 degrees, and the frequency error is less than 0.01Hz.When the current frequency of the city exceeds the range of 47-53Hz, UPS does not execute the lock phase, and immediately transfer to the battery inverter state. Only when the current frequency of the city returns to 48-52Hz, UPS is re -executed and transferred to the city electricity inverter change.state.
Uninterrupted power price
What is uninterrupted power supply

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