UPS

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Major Parts of an UPS

Following are the main components of a UPS system −

  • Battery − The battery works as the energy storage unit in the UPS system. It provides the stored electrical energy for a sufficient amount of time during main power failure.

  • Rectifier or Charger Circuit − It converts the supply voltage of 240 VAC into 12 V (or any other battery voltage) DC. It supplies this rectified DC power to the battery for storage.

  • Inverter − It converts the DC output power of the battery into ac power to supply the load during mains power failure.

  • Static Switch − It is a semiconductor device such as a thyristor which transfers the load from the utility to the inverter (and the inverter to the utility) without any interruption in the power supply to the load.

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