I'm looking to calibrate an energy meter.
As a part of that process, I need to cheaply find a device that can create a power-factor of 0.5, in order to calculate the required phase correction.
The best, or worst, device that I can put my hands on has a power factor of 0.78.
Everything else appears to be much better than that and, not being an electrical engineer, I'd prefer it if there was a device that wouldn't be too involved electronically.
Can anyone suggest, perhaps an off-the-shelf device, that would perform this badly?
An unloaded power transformer is a pure inductance. As you increase the load, the power factor improves.
So, take a Variac, plug an incandescent light into it, and you should be able to dial up any power factor you like.