How to Test a Generator (Information Tips)

How to test a generator

Generators are portable power sources that are used as a backup in cases of blackout from the regular electricity as some use it as the primary source of electricity. Once you purchase one, it is necessary to perform various tests to ensure that they can perform the required function. Some tests are done on the generator, such as the load test and the output power.

Tests are also done on the generators as part of the maintenance to ensure that they still perform the required functions.

What materials are needed to test a generator?

The materials required will depend on the type of test one intends to perform. For instance, if you perform an output test, you will need a voltmeter to read the power output.

In addition, if you are performing a load test, you will need a load bank that simulates an artificial load. The load bank has several switches with different power capacities that help you determine your generator’s ability to hold.

Step by step on how to perform generator test

Generator power output test

Start the generator. Flip the power switch on and pull the recoil cord if your generator has one. Some modern generators do not possess the recoil cord.

If your generator does not start after the start process, check to ensure that the fuel line is open.

Turn on the voltmeter to AC voltage. The voltmeter has a dial that allows it to be turned on and off.

The power from the generator is always alternating current; hence the voltmeter should always be set at the AC voltage to prevent blow out of the voltmeter fuse.

Connect the voltmeters black lead to the generator’s frame. The voltmeter’s black lead comes with a clip to help ground and protect the voltmeter from sudden electrical surges.

Some voltmeters do not have a clip; therefore, getting an alligator clip in such a situation is recommended.

Connect voltmeters red lead into the generator outlet output plug.
Take the voltmeters reading to know the generator’s output power.
Disconnect the voltmeter from the generator and shut it down using the power switch.

A generator is a convenient source of power or a source of energy for strengthening the crisis, which provides energy when ordinary electricity sources ignite. You will learn How to Test a Generator by the end of this post.

To ensure that your generator will work as it should when you need it, there are several tests you can do.

Confirm that a convenient generator can give the intended power levels by performing a quick efficiency test. Perform load testing on armature generators to ensure that they will run smoothly while providing power at the highest limit.

How to Test a Generator
Learn How to Test a Generator

Turn on the generator. Set the generator choke to the START position or in the middle.

Turn the generator force shift to the ON position or turn the key to the ON shift to the ON position. Draw the reaction line if your generator has one that really overturns the engine.

Turn on a voltmeter in the “air conditioner voltage” position. Obtain the dial on the voltmeter from the OFF situation to the position set for testing the AC voltage.

Attach the dark cable from the voltmeter to the generator housing. Mounting the dark link that accompanies the voltmeter to the dark voltmeter attachment, then use the gator cut at the opposite end of the link to cut it anywhere on the edge of the generator.

This will ground it to protect the wires, and electrical segments from damage due to suddenly forced flooding.

Attach the red cable from the voltmeter to the generator socket’s power supply. The power supply of the efficiency plug is where you connect any power connection to the generator.

Attach the red link that accompanies the voltmeter to the red voltmeter attachment, then place the metal tip at the opposite end of the link inside the generator output connection to analyze the voltage

Read the number on the voltmeter to see the yield in volts. Check the voltmeter’s presentation while holding the red cable to the power supply of the power plug. The number displayed is the number of volts of power your generator puts.

Detach the voltmeter and the generator’s killer. Remove the red link and loosen the dark link. Switch the generator start switch to OFF or return the force change to the OFF situation to turn off the generator

How to Test a Generator Voltage Regulator

The amount of power output of your generator is a vital element you need to examine. Testing the voltage of your generator is something you can do by yourself by following simple steps and having the right tools.

Learn How to Test a Generator

• Voltmeter
• Two wires.
• Metal clips.


  1. Set your generator running.
  2. Locate the two terminals.
  3. Set your voltmeter at the right volts.
  4. Put the testing clip on each end considering the voltmeter onto the clips of the voltage regulator.
  5. Carefully get the results from the voltmeter panel.

Essential Tips

• Your generator energy regulator should read between 11 to 13 volts.
• Voltmeter reading of fewer than 11 volts means your generator is not producing the correct voltage.
• Use wires of different colors.

How to Test a Generator
Learn How to Test a Generator


• There is a risk of getting an electric shock.
• There is potential damage to your Voltmeter if the wires are not connected properly.

How to Test Whole House Generator?

A standby generator is an essential addition to your home and outdoor experience. Keeping your generator in perfect condition is vital as it would ensure that you avoid inconvenience when need be.

Generators have varying power output levels. It is possible to ascertain the amount of power produced by your generator at any given time using simple hacks.


Alligator clip
Rubber mat


Start the generator.
Start your voltmeter and switch the selector to the AC voltage position.
Ground your voltmeter using the alligator clips to the frame of your generator.
Connect the red lead to the output point.
Check the readings on the voltmeter screen.


Have two wires for easy process.
Use the output plug.
Ideal reading ranges from 11-12.5volts.


Grounding your meter is crucial.
Stand on a rubber mat or put on shoes with the non-conductive sole.


Electric shock.
Burning voltmeter fuse if not properly grounded.

Whole house power conditioner for generator

A portable generator is essential if you live in an area that experiences regular power disruptions. Portable generators, however, can struggle to produce stable and clean electricity for your sensitive appliances, unlike standby generators.

If you own or are planning to purchase a portable generator, you may have to purchase a power line conditioner to facilitate a stable power supply from your generator.

This article will look at what a power conditioner is, its benefits, and the factors to consider when purchasing one.

So, what is a power line conditioner?

A power line conditioner is a device that stabilizes the electrical supply to eliminate power fluctuations. It is mainly useful in brownout and overvoltage situations.

What are the main benefits of power line conditioners?

A power line conditioner, when installed in a home, will offer the following benefits:

Resolve power fluctuations

A power line conditioner is designed to effectively rectify power outbursts and high voltages. It is equipped with surge suppression mechanisms and can also handle brownouts, ensuring the proper functioning of sensitive devices in your home.

Offer device protection

By being able to sort out power fluctuations, a power line conditioner can effectively offer protection to the electrical devices in your home.

Eliminate extra heat

When exposed to high voltages, various electrical devices in your home may overheat. A power line conditioner handles such situations by bringing the voltage down to the required range, hence prevent overheating.

Noise removal

Other than sorting out power fluctuations, power line conditioners also eliminate electrical noise. After installing a power line conditioner, you won’t have to worry about noises from radios, TVs, or even mobile devices.

Final word

Having a power line conditioner in your home is beneficial as it can offer protection from power surges, remove unwanted noises, keep devices from overheating, and keep your sensitive appliances in good condition for long.

If you live in an area that is prone to power issues, you should consider acquiring a power line conditioner to enjoy the benefits mentioned above.


There is no course for worry if the voltage output is below the ideal level as this can be fixed by a technician.

Before your check, it is crucial to ensure that you understand the procedure and how to use the tools as well.

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