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How to Discharge a Capacitor in Large Machinery

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  1. How to Discharge a Capacitor in Large Machinery, Create a capacitor discharge tool: Schritt 1, Bild 1 von 3 How to Discharge a Capacitor in Large Machinery, Create a capacitor discharge tool: Schritt 1, Bild 2 von 3 How to Discharge a Capacitor in Large Machinery, Create a capacitor discharge tool: Schritt 1, Bild 3 von 3
    • Inspect your capacitor and note the following:

    • The voltage rating of either your capacitor or the device

    • Where the terminals are located

    • Attach two wires to an incandescent lightbulb—making sure the bulb's voltage rating is greater or equal to the capacitor's.

  2. How to Discharge a Capacitor in Large Machinery, Discharge the capacitor: Schritt 2, Bild 1 von 2 How to Discharge a Capacitor in Large Machinery, Discharge the capacitor: Schritt 2, Bild 2 von 2
    • Don't touch the two wire leads together during this step, as this could short circuit the capacitor.

    • Lay one wire lead on the head of the terminal.

    • While holding the lead in place, lay the other wire lead on the opposite terminal to complete the circuit.

    • Hold this position for a few seconds or until the lightbulb completely darkens.

  3. How to Discharge a Capacitor in Large Machinery, Check with a multimeter: Schritt 3, Bild 1 von 1
    • If you have a multimeter, you can check to see if the capacitor is fully drained.

    • Set the meter to its DC voltage measuring mode and measure across the terminals.

    • Any value under 10 volts means your capacitor is sufficiently drained.

Abschluss

For other general electronics skills, click here.

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