generators

[gnosis6631]

Good afternoon to all
when testing generators how many hours should they run for during the test this is the schedule maintainence test ?

 

[Dennis Alwon]

Good afternoon to all
when testing generators how many hours should they run for during the test this is the schedule maintainence test ?

I don't do generators but I think it is 30 minutes to an hour a week

 

[grich]

All of the generators I keep an eye on (from 15kw propane to 230kw diesel) have their exercise clocks set for 30 minutes a week.

 

[stevebea]

Good afternoon to all
when testing generators how many hours should they run for during the test this is the schedule maintainence test ?

Are you refering to test as in load bank test or weekly exercise ?

 

[tom baker]

If you have legally required or emergency generators, the requirements for running are in NFPA 110.
A emergency generator is required to be run 30 minutes once a month. However, running a generator under no load, esp a diesel generator creates wet stacking and the unburned diesel can dilute the oil.
Many generators have the exercise timer set to run - typically unloaded - once a week.
If this is the case, then you should load bank the generator to 75% or so, once a year.
And a couple of times a year, turn off the main disconnect to do a "plugs out" test.