Tests of a generator’s ability to produce electricity during a power loss are required. These checks are frequently carried out by a company that specialises in the maintenance of Emergency Power Supply Systems (EPSS). This article focuses on load testing, which is running a generator under real-world and/or simulated loads to determine its efficiency or to remedy an issue known as wet stacking. If you require these services, you should use an independent generator service rather from a manufacturer. An EPSS service, in addition to reduced prices and faster response times, concentrates on maintenance and testing, whereas manufacturers concentrate on development and sales.
If you require emergency power testing, call a generator provider as soon as possible for a free assessment, especially if your building has a level 1 generator. Why not try here Long Island Emergency Power
The Importance of Load Testing
Load testing determines whether a generator is operating at a particular proportion of its nameplate kilowatt rating. The first line of load testing is a monthly test carried out in accordance with National Fire Protection Association (NFPA) rule 110. A genset must either (a) operate at a minimum of 30% of its nameplate kilowatt rating; or (b) attain the minimum exhaust gas temperature for monthly testing, as stated by the manufacturer, to pass the monthly test.
If the genset fails to meet one of these criteria, NFPA 110 recommends that it be tested annually under artificial load, which necessitates the use of a loadbank. During load bank testing, the genset is put through its paces for two hours straight:
• 30 minutes at 25% of the kilowatt rating on the nameplate • 30 minutes at 50% of the kilowatt rating on the nameplate • 60 minutes at 75% of the kilowatt rating on the nameplate
Load bank testing can improve generator performance and address wet stacking, a situation in which unburned fuel accumulates on the exhaust side of a generator. Load bank testing causes the unburned fuel to evaporate by forcing a generator to operate at a specific proportion of its nameplate kilowatt rating. It can cause premature wear of parts if it is not dissipated.
A Hospital-Specific Test
Level 1 and level 2 generators must be tested according to the NFPA criteria. Level 1 generators can be found in hospitals. In addition to NFPA criteria, they must be tested pursuant to JCAHO (Joint Commission on Accreditation of Healthcare Organizations) guidelines. Generators at JCAHO-accredited hospitals must be checked triennially for four continuous hours in addition to being tested regularly and, if necessary, annually. A generator must operate at a minimum of 30% of its nameplate kilowatt rating throughout the test.