Generator Load Bank Testing Requirements

Generator load bank testing is a mandatory requirement for some backup power generation applications.

Generator load bank testing requirements.

This standard contains requirements covering the performance of emergency and standby power systems providing an alternate source of electrical power to loads in buildings and facilities in the event that the primary power source fails. Prechecks 1 fuel fluid levels belts hold down bolts etc. During this two hour period the unit should be operated as follows. At 25 of the nameplate kilowatt rating for 30 minutes.

The purpose of these tests are to periodically verify the function of the system against the standard. Generator engine and load bank testing outline a. Any examples are for illustrative purposes only. Load bank testing for two continuous hours each year.

It verifies that all primary components of the generator set are in proper working condition under loaded conditions. A generator load bank test involves an examination and assessment of a genset. Load bank testing shall be performed for a period of four 4 hours at the full rated load of the generator and witnessed by a county representative. Emergency power generation systems fall under a number of regulatory oversight conditions and code requirements.

The frequency schedule for load bank testing on a generator often depends on how the generator is classified and what it is a standby for. Can the generator load bank test be combined to meet the 36 month test as well as the 4 hour load test. For example if a generator is used as a backup for services associated with loss of life or serious injury such as in a hospital setting the testing requirements are much more frequent. Ongoing requirements according to nfpa 110 chapter 8.

8 2 4 3 if a generator fails the monthly test it should be operated under a load supplied by a load bank i e. The equipment used to conduct a load bank test produces artificial loads on the generator by bringing the engine to an appropriate operating. In addition to routine maintenance you ll also need to conduct ongoing operational tests of your epss. A load bank can be connected to the generator to get above the 30 requirement.

The testing for an annual load bank test and the triennial exercise may be combined according to nfpa 110 2010.