Look at OSHA 1910.269 App E. In table 3 they describe which methods are acceptable for estimating incident energy - looks like Arc Pro is the only one approved for >15kV. Table 6, which was created using arcpro and is the same as NESC Table 410-2, shows fault currents and max clearing times for...
This oil test result is from one of the gassing transformers, taken in Nov 2012.
First number is a "bad' transformer the second is from an identical transformer installed in the same time frame
Hydrogen 11291 41
Methane 588 4
Ethane 83 2
Ethylene 1 1
Acetylene 0 0
Carbon mon 517 537...
We are experiencing the same problems with step up transformers at wind farms. In one phase of the project we have 16 turbines and about half are gassing and half are not, the transformers are all identical. We have done extensive testing in the collector system, including high frequency, and...
