How to Polarize a Generator

As a generator owner, you may have encountered situations where your generator stops functioning? This may make you think of taking your generator to a technician and even thoughts of buying a new one. However, the solution may be polarization. So how can you polarize a generator? Let us get to the nitty-gritty and understand the process of generator polarization better.

Numerous routes lead to the same place. The rule still applies with polarizing generators. There may be the completion of this in two efficient ways:

2 Methods on How to Polarize a Generator

1. Drilling Method

how to polarize a generator

Items needed

  1. An electric drill is a must-have.
  2. Safety goggles and rubber gloves

How to use the electric drilling approach to polarize the generator 

  1. Connect a drill to the generator by its wire.
  2. Set all of the reversible drill switches to forward.
  3. Begin by turning on the generator.
  4. Turn the drill’s chuck in the opposite direction by pressing the trigger.
  5. If rotating the chuck one way fails, try spinning it the other way.
  6. Now is the time for the generator to start generating power.

When spun backward, the thrill functions as a small generator as the motor winds, voltage is produced, funneling into the machine by the cord as it funnels inside the generator receptacle.

The stator then receives the power and generates a stronger magnetic field due to the laminations and iron cores.

When the magnetic field crosses the rotor, it induces a voltage in the winding.

If this does not solve the problem, replace the AVR (Automatic Voltage Regulator).

2. A 12 Volt Unit and a Battery Method


Items needed

Safety Goggles

how to polarize a generator

Rubber Gloves

how to polarize a generator

12 Volt Battery


Make sure to pay close attention to and complete each work component with care. Avoid being irresponsible and putting things where you don’t recall putting them.

How to use a 12-volt battery to polarize the generator

On your generator unit, locate the voltage regulator.

Disconnect the two wires (one red and one black/white) that link to the generator brushes.

Attach the white/black cable to the generator’s grounded battery terminal.


Use a light bulb to power to polarize a generator

Start the motor by turning on the generator switch.

Make a three-second connection between the +12-volt battery and the red wire on the terminals.

Unplug and re-plug your cables.

Produce electricity with the generator.


There must be the disconnection of all brush wires from the terminals of the Automatic Voltage Regulator (AVR).

If you fail to do so, the unit may damage. Because of the risk of electric shock, the regulator should not touch other wires.

Bottom line

 Polarizing is essential as the generator is not polarized it may be destroyed and other motors and switches connected to the same current.


What happens if you do not polarize a generator?

If the generator is not polarized to a positive charge and a positive current is supplied into the terminals, the generator and other motors and switches can be destroyed using the same current.

What does it mean to polarize a generator?

Polarization is the process of aligning the polarities of the generators and the charge controller to guarantee that they both work and charge appropriately.

How do you polarize a positive ground voltage regulator?

Connect one clip to the A terminal if the generator has a Delco 6V strong grounds network or a Lucas 6V or 12V positive grounds system. Tap the battery’s negative terminal with the other clip for a fraction of a second.

How do you flash a generator to a car battery?

how to polarize a generator

Connect the +12 Volt battery (red cable) to the detached terminals’ red cable for three seconds. Connect the connector after removing the wires. The generator is now able to generate electricity once more.

How should I polarize my generator?

When the battery is replaced, or the vehicle is removed, you should polarize your generator. The polarization of your vehicle is usually unaffected by utilizing a battery disconnect or replacing the battery. To see if a battery replacement or the first few times you utilize a battery disconnect alters the vehicle’s polarity, you should test your charging system.

How many volts should a starter generator put out?

 Switch on the vehicle and shift into forwarding gear. Press the accelerator pedal to ensure the starter generator receives the full 12 volts. Double-check your battery and cable connections if the voltages drop off or are low.

How do you polarize a Farmall generator?

Connect the generator armature to the battery’s hot connector for a few seconds. A short jumper wire connected to the “Batt” and “Gen” terminals on the voltage regulator is the most convenient way to do this.

What causes a generator to stop producing electricity?

The loss of residual magnetism is the most prevalent reason portable generators fail to produce energy. Electric conductors are moved through a magnetic field by generators.

How do you hook up a voltage regulator to a generator? 

Step 1

Fix the regulator mount to the tractor frame using welding. Weld the mount to the coil housing and the alternator or generator mount. Follow the mounting instructions in the regulator handbook to ensure that the mount is positioned correctly.

Step 2

 Secure the regulator to the mounting bracket. The four corners of the regulator must be screwed or bolted to the mount. This usually necessitates the use of four screws or bolts, as well as four washers and nuts.

Step 3

Connect the regulator to the positive battery connection wire, usually red. There should be the connection of the wire to the “B” terminal (sometimes this terminal is marked “BATT”). There should be a connection of a regulator to the generator or alternator wire. The generator/alternator wire’s matching terminal is labeled with an “A” or “G.” (sometimes “ARM” or “GEN”). Connect the field coil wire to the regulator’s field terminal. The field terminal is denoted by an “F” or “FIE.”

How do you polarize the John Deere generator?

 Take a wire and cut it into two halves. Connect the other end of the wire to the pole of the battery, that is, the neutral wire, with one end of the wire attached to the hot terminal of the battery. Then, with the other terminal, touch the center armature. The John Dee generator will be polarised when you touch the field terminal to the armor, and it produces an arc.

How do you shock a generator?

The purpose of shocking a generator is to start producing power after prolonged inactivity. This can be accomplished by the use of a drill. So you hold the drill’s trigger wide open and reverse the chuck till it powers up, and the generator starts producing power simultaneously.

How do I test a positive ground generator?

When the engine is shut off, connect the multimeter’s positive probe to the battery’s positive pole and the negative probe to the negative pole of the battery. A good battery should have a multimeter reading of over 6 volts, with a few tenths of 6.4-6.8 volts.

How do I remagnitize a gas generator?

Using a corded electric drill, you can re-magnetize a gas generator. Re-magnetize the gas generator by plugging the drill into the generator, pulling the trigger, and rotating the head in an anticlockwise direction.

How do you polarize a generator on a Harley Davidson?

You only need a stripped wire and a good gauge wire to polarize this generator, such as an 18 gauge wire. Before jumping the positive cable, twist it first, then fasten it using alligator clips and hooky. Make sure the bike is turned off, and the negative connection of the battery is connected before proceeding.

Why do generators fail?

There are several reasons why generators fail;

Coolant is insufficient: It automatically shuts down when a generator becomes too hot. When a generator doesn’t have enough coolant, it won’t run for long periods, resulting in a breakdown when a facility most needs it.

Leaking Fuel: Fuel leaks can usually be detected during routine maintenance because of the odor they create.

A defective fuel pump or a damaged fuel line could be the cause if they are discovered while the generator is running.

Fuel Tank Is Empty: Typically, empty gasoline tanks are caused by stuck fuel gauges or fuel gauges that reflect erroneous levels.

How do you polarize a 24-volt generator?

A jump lead is required to power up a 24-volt generator; the jump lead’s other end is connected to a recognized power source.

Remove the wire from the field terminal, then take the live jumper lead and touch it several times. There will be a tiny spark and reattach the field wire to its proper location.



About Steve Stuart

Steve Stuart is an electrical engineer who developed interest on generators during his school years. After school, he became a generator enthusiast. This is after encountering power supply problems at the area of residence where he lived. Power would be on and off and so food would go bad and the room heater would go off especially during winter. After trying the different generator brands for several years, Steve now provides information on the available brands and products in the market today. Based on his experience, he gives the do’s and the don’ts when it comes to generator use.

Leave a Comment