Quote:
Originally Posted by freebeard
Insofar as the manuals, I'm curious about whether it's solid or rubber mounted in the chassis and best practises for crimping cable ends or whatever Toyota knows about working safely with those voltage levels. The biggest bite I ever took was 800v, but that was from a TV set, not a power plant.  |
At the day job, our controllers put out 575 VAC (DC bus trips at 1000 VDC, 815 nominal). So for the AC side (DC only exists inside the controller) I would pass along these suggestions:
- use fine stranded cables
- strip only as much insulation as the lug takes
- crimp lugs onto the cables with a hydraulic crimper
- bolt the lugs properly
- torque the bolts during installation with a torque wrench
- re-torque/check every 6 months to 12 months (if not taped)
- separate the phase connections in the motor junction box
- tape the connections individually after testing
- use armored cable clamps (if using armored cable)
- terminate the ground cable at both ends
I hear from a couple of our consultants that new installations are having good results from individually shielded (per phase) 3 phase cables, where each shield is connected to ground at the controller only. I have no experience with this setup. It is said to minimize noise in adjacent electronics.