Aircraft Voltage Regulator Troubleshooting

The following applies to plane power r1224 voltage regulators.

Aircraft voltage regulator troubleshooting.

Aircraft alternators are externally regulated by a voltage regulator sometimes called an alternator controller which is usually mounted either on the firewall in the engine compartment or under the instrument panel. If it does the generator is o k. The voltage on the armature post should follow the throttle. Which in turn decreases alternator output voltage.

This is because the voltage output of the alternator must greater than the battery voltage or current will not flow into the battery which on its own should produce about 12 8 volts when fully charged. Make sure that when the master switch is on that you have battery voltage of at least 12 or 24 volts on the regulator battery terminal. Verify both the input and output voltage of the regulator. Check and record voltage of aircraft bus.

If the g the kelly aerospace vr2000 offers built in troubleshooting diagnostics to identify elec trical system problems all the while. This video provides the basic steps for troubleshooting aircraft electrical system issues including headset noise. Use the troubleshooting guide for repairs on our aircraft alternators. Need help solving an electrical system issue.

As such regulator maintenance other than basic adjustments are minimal. The input voltage should be approximately the same as the bus voltage. If another manufacturer s voltage regulator is installed refer to their maintenance manual. Voltage regulator troubleshooting tips.

These solid state regulators along with glass cockpit warning systems are providing faster but not necessarily better information to the aircraft s pilot and mechanic. Most aircraft voltage regulators used today are solid state and no longer have the trouble prone contact points and coils. Check the two wires from the generator to the voltage regulator. Good grounding eliminates many potential problems.

Normal readings should be around 14 volts for a so called 12 volt system.