Generator Load Bank Testing Standards

Duration of actual test varies based on type of test nfpa 110 and customer preference.

Generator load bank testing standards.

The generator s manufacturer or supplier will guide you through this process which includes a series of short power up tests and then a full length two hour load test. Generator load bank testing and engine testing i. Even after professional installation according to the standard an emergency power system must be tested thoroughly to ensure it passes. Acceptance testing of the installed generator set shall be conducted by a factory.

It verifies that all primary components of the generator set are in proper working condition. You ll need to work closely with your generator manufacturer to develop a compliant epss operational testing schedule. Generally speaking you ll need to perform a weekly inspection and a monthly load test on your epss 8 4 1. Opening a normal breaker shall not be required.

A successful test is one in which the generator. 1 1 1 power systems covered in this standard include power sources transfer equipment controls supervisory equipment and all related electrical. Standard load bank testing procedure the following is the basic step by step procedure for performing load bank testing on a generator set by utilizing a portable resistive load bank unit. A generator load bank test involves an examination and assessment of a genset.

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. 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. For gasoline powered natural gas powered or propane powered generators that do not meet the testing requirements outlined in 1 a above it will likely be necessary to add more load to the generator or conduct a load bank test to comply with testing requirements a load bank is typically a mobile piece of equipment that simulates the actual electrical load the generator is intended to power. Provide all equipment labor materials and supervision necessary to test the stand by diesel engine driven electric generator set specified.

The generator is operated in accordance with the standards and the appropriate data are recorded. 2 the monthly test is required to be initiated by simulating a power outage using the test switch es on the automatic transfer switch es or by opening a normal breaker see nfpa 110 10 sec. Tests shall be performed as installed on site. 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.