Same load has different power factor when fed from different sources

[Joethemechanic]

Not without additional information and data.

I got called in once because a company's power quality monitor was going into alarm due to high harmonics. As I reviewed the waveforms the harmonic content, THDv was excessively high but the THDi was not a problem. I noticed the alarms triggered only on weekends.
I told the customer not to worry.

It turns out the facility was not in production on the weekend and the harmonic content of their new emergency exit light chargers were extremely noisy when their 15A was the only load on a 2000kVA transformer.

Here is how I rectify power for my high current DC needs. No harmonic distortion problems



Stores a lot of energy too. Built in the 30's and stone reliable

For some things the best way is the old school way