The difference between DC screen and UPS uninterruptible power supply is:
1. Different applications; the DC screen is mainly to provide an operating power supply or control power supply for switchgear, integrated protection device, etc .; the UPS power supply is mainly to provide a reserve power supply for computer room UPS, computer, etc.
2, the principle is different; the DC screen is a direct current of the alternating current, which is the external load. The principle of the UPS is to first convert the alternating current in direct current, and then pass the inverter unit to alternating power into an alternating power supply. Both are all powered by their battery packs in the market failure.
DC screen debugging, switching on whether the AC power test AC dual power switching device is normal, the two-power switching device is normal. After the communication part is tested, the AC switch of the charging module is sequentially closed, and the module is started normally and measures the module output voltage and polarity. After the charging module starts normally and outputs the voltage and the polarity correct, turn on the battery pack switch and the bus switches, measure whether the battery pack switch is adjusted, and whether the active voltage and polarity are correct, and observe whether the pressure meter is playing turn.
UPS (Uninterruptible Power System / Uninterruptible Power Supply), is uninterruptible, is a system device that converts DC power into a commercial system with a host inverter, such as a host. . Mainly used to provide stable, uninterrupted electricity supplies to a single computer, computer network system, or other power electronics such as solenoid valve, pressure transmitter, and the like. When the main electricity input is normal, the UPS supplies the mains motor pressure to the load. At this time, the UPS is an exchange of electric motor regulators, and it also charges the battery in the machine; when the city is interrupted (accident shutdown) When the UPS immediately continues to supply 220V AC power to the load by inverted zero switching conversion method, allowing the load to maintain normal operation and protecting the load, hardware is not damaged. UPS devices typically provide protection against high voltage or high voltage.
Changchun Hongbao is an export-oriented enterprise specializing in research, development, production, sales and technical services in power field products.
Information Sources: