I got a "package" deal from a now defunct EV supplier who no longer responds with tech help. They sent 2 kilovac contactors. I know 1 goes between the bat and the controller for use with the key/ignition switch. (zilla hairball)
The 2nd contactor goes where? Here are possibilities I came up with:
1. place next to contactor 1 as a panic/emergency button on dash.
2. powers up the dc-dc convertor. (but why not use a regular switch for that?)
3. placed halfway through the pack and also hook to the key/ignition. (I find this unlikely in a 96v 260ah TS lifepo4 pack)
Which is correct? I am thinking the emergency button.
What do you think?
It sounds like others have eliminated problems by putting a separate switch on the dc-dc. Turn on the hairball first using the contactor, then switch on the convertor? This also sounds like it allows the car to be switched off completely for long-term storage without bat drain. Am I on the right track?
Also, are the "snubbers" on the contactor sufficient to slow the rush to fill the controller capacitors or do I need other precautions. I seem to remember seeing somebody put a resistor or something similar on the circuit to slow it down. Ideas?
The 2nd contactor goes where? Here are possibilities I came up with:
1. place next to contactor 1 as a panic/emergency button on dash.
2. powers up the dc-dc convertor. (but why not use a regular switch for that?)
3. placed halfway through the pack and also hook to the key/ignition. (I find this unlikely in a 96v 260ah TS lifepo4 pack)
Which is correct? I am thinking the emergency button.
What do you think?
It sounds like others have eliminated problems by putting a separate switch on the dc-dc. Turn on the hairball first using the contactor, then switch on the convertor? This also sounds like it allows the car to be switched off completely for long-term storage without bat drain. Am I on the right track?
Also, are the "snubbers" on the contactor sufficient to slow the rush to fill the controller capacitors or do I need other precautions. I seem to remember seeing somebody put a resistor or something similar on the circuit to slow it down. Ideas?