leitmotif
Member
Putting together classes to train future electric vehicle service and repair techs. Will include DC motor control.
Want to put together a demonstration board to show shunt series and compound motor operation and control. Have 100 0 100 amp ammeter and tach 600 0 600, main line contactor and main line knife switch and fuse assembly. I want to use to demonstrate CEMF, reversing and dynamic braking.
I want all to be plainly visible to students at a 15 foot distance. Intend to use knife switches so students know and can see a switch position.
IF students are to operate this then I will more than likely keep voltage at 48 or less. Yes I realize there can be high currents - there will be an instructor held E stop "chicken switch" provision for safety.
WHAT I NEED are double pole double throw knife switches say 50 amp capacity (or more).
Anybody have some of this old stuff in their neat "stuff" piles?
Free would be nice - but there are those practicalities,,, Will pay shipping of course.
Also looking for inspiration and better ideas and views.
Dan Bentler
Want to put together a demonstration board to show shunt series and compound motor operation and control. Have 100 0 100 amp ammeter and tach 600 0 600, main line contactor and main line knife switch and fuse assembly. I want to use to demonstrate CEMF, reversing and dynamic braking.
I want all to be plainly visible to students at a 15 foot distance. Intend to use knife switches so students know and can see a switch position.
IF students are to operate this then I will more than likely keep voltage at 48 or less. Yes I realize there can be high currents - there will be an instructor held E stop "chicken switch" provision for safety.
WHAT I NEED are double pole double throw knife switches say 50 amp capacity (or more).
Anybody have some of this old stuff in their neat "stuff" piles?
Free would be nice - but there are those practicalities,,, Will pay shipping of course.
Also looking for inspiration and better ideas and views.
Dan Bentler
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