How To: Safely Discharging a Capacitor Bank

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How to safely discharge a capacitor bank.
A method to discharge large capacitor banks with an insulated high wattage resistor. This resistor and method is used to discharge large 700vdc 30+ capacitor elevator banks. The banks have two 35k ohm bleeder/balance resistors but they can take some time to discharge and in many cases can't overcome the dielectric absorption (battery action) which can be significant on larger drives I clip this discharge resistor and leave it on while work is performed.


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