GEN- SET CALLIBRATOR

When you say "calibrator" you are talking about using a set of standards to compare against your generator set's gauges.

Usually a generator will have two analog style gauges which measure electrical performance. These are a voltmeter and an ammeter. In some alternating current generators you will also find a frequency meter.

You can use a Digital Voltmeter for calibration of your analog style voltmeter and ammeter. The frequency meter on ac gen sets can be cailibrated with a frequency generator.

For performance testing you can construct a load bank consisting of high wattage heaters (such as those used in electric stoves)which can be fan cooled if necessary.

I once made a load bank for a small gen set test using a parallel wired group of 100 Watt light bulbs. I also made use of electrical heaters as loads. Most electrical heaters are capable of providing several thousand watts of energy absorbtion

If you are talking about load testing then a salt water tub and a couple of triangle shaped plates is the standard way of testing. You can use several plates in parallel for larger gen sets. You will also need an amp meter that can measure the maximum output. By using triangle plates you can vary the load by lowering the plates in to the brine. The triangle are lowered point first and the load will build as more and more plate comes in contact with the brine.

Any decent volt meter will show the output voltage and an inexpensive frequency meter will check the hertz.

Also most generator rental outlets can certify your gen set.

If the out put is three phase then you will have a minimum of six plates connected to measure the output phase to phase.

But why reinvent the wheel take it to a place already set up to test the output.

OK, let's get down to basics. Why do you need to calibrate this generator? Do you need to certify its output to someone else? Do you feel that it is not operating properly? Or what? Is the instrumentation on the generator damaged in some way? How large is the generator? What is the prime mover? Do you suspect that the prime mover is not operating up to spec? Or, do you suspect a problem with the generator proper? What data is on the nameplate? Commercially, generators are tested and certified by connecting them to suitable load banks and measuring their output. A little more information will help these knowledgeable engineers provide you with a lot more meaningful help.