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Standby generator

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Type of generator
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Standby generators

A standby generator is a back-up electrical system that operates automatically. Within seconds of a utility outage an automatic transfer switch senses the power loss, commands the generator to start and then transfers the electrical load to the generator. The standby generator begins supplying power to the circuits. After utility power returns, the automatic transfer switch transfers the electrical load back to the utility and signals the standby generator to shut off. It then returns to standby mode where it awaits the next outage. To ensure a proper response to an outage, a standby generator runs weekly self-tests. Most units run on diesel, natural gas, or liquid propane gas.

Automatic standby generator systems may be required by building codes for critical safety systems such as elevators in high-rise buildings, fire protection systems, standby lighting, or medical and life support equipment.

In 2002, approximately 0.63% of homes in the United States had installed a backup generator; that figure rose to approximately 5.77% by 2023. The wattage of typical whole-home generators varies from 7.5 kW to 26 kW.

See also

References

  1. Robert B. Hickey Electrical Construction Databook, McGraw Hill, 2002 ISBN 0-07-137349-7, Chapter 14
  2. Jerry C. Whitaker (26 September 2006). AC Power Systems Handbook, Third Edition. Taylor & Francis. p. 325. ISBN 0849340349.
  3. Zachariah Amela (December 8, 2014). "Backup Power for the Individual and Volunteer, Part I: Generators". Retrieved January 6, 2015.
  4. James E. Allen (2010). Nursing Home Federal Requirements: Guidelines to Surveyors and Survey Protocols (7th ed.). Springer Publishing Company. p. 304. ISBN 978-0826107909.
  5. ^ Laura Daily, What to know before investing in a standby home generator, Washington Post (August 29, 2023).
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