What Is an Uninterruptible Power Supply and How Does It Work
An Uninterruptible Power Supply (UPS) is an electrical device providing emergency power during outages. It instantly switches to battery power when mains electricity fails, protecting
Before we answer the question of what does uninterruptible power supply do, it's essential to understand what a UPS is. An Uninterruptible Power Supply (UPS) is an electrical device that provides emergency power to a load when the input power source or mains power fails.
Here's how do uninterruptible power supplies work in a line-interactive system: Voltage Regulation: The UPS uses an automatic voltage regulator (AVR) to correct minor power fluctuations without switching to battery power. Power Outage: During a power failure, the UPS instantly switches to battery power to ensure continuous power to the load.
Here's how do uninterruptible power supplies work in an online UPS: Continuous Operation: In an online UPS, the rectifier converts incoming AC power into DC, which is then converted back to AC by the inverter. This double conversion ensures clean and stable power is always delivered to the load.
It operates in standby mode until a power outage occurs. Here's how does a uninterruptible power supply work in standby mode: Normal Mode: The connected equipment is powered directly by the mains, and the UPS remains idle. Power Outage: When the mains power fails, the UPS switches to battery power and supplies the load.
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