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high voltage

  1. Switching HV accessories in conversions?

    All EV Conversions and Builds
    Precharge of the capacitors on a drive inverter is well understood - and most inverters manage this themselves. But I'm curious about the other accessories that run on ~380 volts DC. DC/DC converters have a certain amount of capacitance that would potentially weld a contactor. Likewise, high...
  2. I am Planning on Converting a 2000 Jeep Cherokee

    All EV Conversions and Builds
    I would like to use [this]( motor to run my jeep. I don't know how the voltage works for these motors and have not been able to find information on what to do for a battery. Do I need a battery capable of outputting 360v to...
  3. unconventional project

    Batteries and Charging
    Hello community, I need your help for a challange. The goal would be to power a 150 kW electric engine for the duration of 30 s to 1 min. Afterwards the batteries could be broken (so only one use). I found some performance data for engines, e.g. Mass 43 kg Power 150 kW...
  4. eclipse 1992 rwd ev

    All EV Conversions and Builds
    I'm making my Mitsubishi eclipse gs 1992 into an ev i did take out all interiors and gas engine related stuff out of the car and i did buy a ford differential to convert the car rwd i thinking of using the warp 9 dc motor and the soliton 1 controller now i do have several questions for you...
  5. Wonder Book of Electricity - ca 1930

    New Member Introductions
    My father got this book when he was a kid, and he gave it to me, which probably helped "spark" my interest in electronics (and maybe especially high current and high voltage power).
  6. HV Disconnect Switch

    Technical Discussion
    I'm helping some guys build a 144V 500 amp EV (Chevy S10) and they want a HV Disconnect Switch. I'm pretty sure I bought the one at cloudelectric, but it says its a 5000 amp at 12V, or 2500 amp at 24V, or..... Is this the proper switch to...
  7. Controller basics and motor torque

    I wondered if someone here could answer a question I have concerning the advantages or not of higher voltage controllers for series DC motors. As I understand it controlling a DC series motor with PWM, involves the rapid switching of the supply (battery pack) and varying the pulse width (up to...
  8. EV High Voltage, Turning it on and off:

    Technical Discussion
    I am starting this thread so I will stop hijacking other peoples conversations in order to sell my step-start delay:rolleyes:. There are a lot of opinions on how to apply power to the controller. There are safety considerations for both the equipment and people. If we can work out some...
  9. High Voltage Wiring

    Technical Discussion
    Hey, I've heard you don't want to wire the High Voltage positive and negative side by side. I have my truck's HV wires tied together side by side. Is this slowing me down? Limiting my range? I know the cold sure does!