Tag Archives: uninterruptible power supply

What your computer expects to get from the power grid is 120/127/208/220/230/240-volt AC power oscillating at 50/60 Hertz. A computer can tolerate slight differences from this specification, but a significant deviation will cause the computer’s power supply to fail. An uninterruptible power supply generally protects a computer against four different power problems: 1- Voltage surges […]