Generator not producing power properly?
Good day everyone.
I recently bought a backup generator as a barn find. Unfortunately, I couldn't make out the nameplate on the generator. So, here are the pictures for a better understanding.
After derusting the tank and cleaning the carburetor, I replaced the air filter and the spark plug. The engine is running well so far. What I noticed is that the generator initially produced power. Until suddenly, it only produced very little power. I was able to identify the problem as follows: As soon as I manually accelerate the engine, the generator produces more power again.
Is there a unit that tells the engine what speed it should run at depending on the electrical power drawn from the generator?
I've already replaced the compensator, but that wasn't the problem either.
I hope someone has a brilliant idea for me. 🙂
(0 rating, 0 votes, rated)You need to be a registered member to rate this.
Loading...
This looks like a Briggs Stratton engine, right? He has the carburetor on the other side (which one doesn't see). Between the carburetor and the engine, a rod is connected down to a lever which comes from the engine block relatively far below the crankcase.
At the bottom of the carburetor, the linkage engages a lever and is deflected. At the deflection you will find a set screw with which you can set the speed up and down.
So now you take a multimeter and plug it into the power outlet of the unit. Sets the multimeter to frequency (hz) and lets the unit run. You now adjust the adjusting screw when the engine is running until you land at 50 to 52 hz.
The air filter I've built was from Briggs & Stratton so it can be good that the engine is also from them. The carburetor is on top of the tank. I know what you mean, I'll try.
What does the frequency have to do with the current generated?
This is also at the connected load. In idling (without load), the generator also runs faster because it is not braked. The frequency is as high as the speed. When the load increases, the frequency also falls because the power is removed.
In the public network, the frequency is also monitored to regulate power plants. If the frequency rises (this is about tenths of hertz), then the network load is lower, then the power supply is reduced.
It's AC. We have a frequency of 50hz in Germany. This frequency is influenced by the engine speed. The faster the engine the higher the frequency. To make your electrical equipment work, you need the 50 Hz. In the engine there is a control unit, which then ensures that the motor does not rotate more slowly and the frequency is maintained. How to read this: https://www.briggsandstratton.com/eu/de_en/support/faqs/browse/governor-system.html
Probably the part has nothing to do with scrap. If you want a device for the case of a blackout, buy something like this: