An uninterruptible power supply (UPS) is a device that provides fail-safe operation of electrical power and is designed for continuous supply of electrical energy when the main power source is turned off, maintenance of electrical current parameters in acceptable conditions and protection against network disturbances, overvoltage, short circuit, etc.
Sources of uninterrupted power supply were developed in parallel with computers and other high-tech devices for reliable power supply of this equipment, since standard electrical networks cannot provide sufficient reliability of power supply.
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