I have been working on a couple of shows lately where the rig vs the power supply capability have come a bit too close for comfort. It reminded me to dig up and old project and give it a new lease of life.
I have developed this; the CurrentBun Mini OSC. It is the same size as my STATE DMX testers.
The unit has inputs for three current clamps and an ethernet connection / USB for software and calibration. There is a 2.5 inch touch screen that shows basic read outs of the three phase currents, peaks and a graph mode that shows current over time.
The idea is that you stick this by the rack you want to monitor, connect it to your lighting network and then display/configure the unit remotely via an app on your PC/MAC/Phone. The data is sent over the network via OSC, so it can be received easily. I have made a simple application that displays a readout remotely and lets you set an alarm for each phase if it were to go over a top set. The physical unit can also chirp if required.
Case is still a bit of a prototype, but let me know if you have any ideas for the project.