Your last generator Maintenance Run

[ultrarunner]

I had a little fun with this researching, yes it gets very complicated and expensive too. IM and RFI can be controlled but not an originally square or notchy sine wave that's supposed to
be smooth. In other words, hard to put humpty dumpty back together again. Unless you basically start "all over" and that's the complicated part. Over my pay grade...

none of the ads on the Westinghouse gen a few of us have lists any thd spec. Had to go to company site, not very encouraging:
Total Harmonic Distortion ≤23%

hopefully that is worst case. How expensive is a THD meter/harmonic analyzer?

How to measure power quality? What devices should you use and what to measure? | EEP

Measuring power quality and finding a bugbear in the network which is messing with the power are considered a highly paid job.

electrical-engineering-portal.com

I have used a work truck inverter since 1990 back when they cost a lot...

The power produced was fine for power tools but my Makita charger refused to work as did some other electronics.

 

[90cummins]

No enclosure its a 9.1 hp diesel
and its very quiet you can stand
right next to and talk to anyone
don't have to raise your voice
3.4 gal tank will run at half cap
for 23 hours or full for 6 hours
Just turn the key and starts
real happy with it. will be using
it to run my air compressor to
put up a fence wood fence using
a staple gun Its a 2021 year

willy

Yanmar must have been busy working on noise emissions.
Is yours an L100??
90cummins

 

[buckeyefarmer]

Our Yanmar Diesel 5500 watt gen
takes 3.4 gal diesel will run for 23
hours on half tank and you have to
be about 5 ft to it to know that its
running

willy

Never found that one before when looking. Looks interesting. They don’t list THD.

 

[Patrick Herd]

So I had an engineering hunch that a "Constant Voltage Transformer" would be the miracle fix in the case of small to medium scale generator power (Last time I covered them was in 2005, I feel old) and yes a CVT will eat a square wave supply and give you a sine wave output: What is a Constant Voltage Transformer - an introduction to the perfect sine wave If it works with a square wave, it will work with any generator that outputs any amount of THD. Not super efficient but perfect for intermittently powering critical loads.

 

[3930dave]

The Age We Live In.....

Lots of pure-sine inverters to choose from now.....

10 Best Pure Sine Wave Inverters in 2022: Reviews & Buyer’s Guide

.....gotta run, so haven't checked it out yet, but on the bottom of that page is a vid about cleaning up old-school inverters......

Rgds, D.

 

[Williy]

90cummins Our model is YDG5500W-6El
I think that I paid aproxx $3500 I ordered it
from K&S Tractors Lubbock, TX early last year

Yanmar Portable Diesel Generator - YDG5500W-6EI, 5500 Watt, 9.1 HP, 120-240 Volt, Tier IV Final

Yanmar Portable Diesel Generator – YDG5500W-6EI, 5500 Watt, 9.1 HP, 30 Amp Plug, Electric Start, Tier IV Final Yanmar L-100W6-GEY air-cooled, 4-stroke, direct injected, diesel fueled engine 5500 watts of start power and 5000 watts of continuous

www.absolutegenerators.com

willy

 

[3930dave]

90cummins Our model is YDG5500W-6El
I think that I paid aproxx $3500 I ordered it
from K&S Tractors Lubbock, TX early last year

Yanmar Portable Diesel Generator - YDG5500W-6EI, 5500 Watt, 9.1 HP, 120-240 Volt, Tier IV Final

Yanmar Portable Diesel Generator – YDG5500W-6EI, 5500 Watt, 9.1 HP, 30 Amp Plug, Electric Start, Tier IV Final Yanmar L-100W6-GEY air-cooled, 4-stroke, direct injected, diesel fueled engine 5500 watts of start power and 5000 watts of continuous

www.absolutegenerators.com

willy

Thanks for the 411 Willy..... small(ish) modern diesel gens are not that easy to find.

Being Yanmar, I'd expect it is well designed for this, but need to ask...... how easily does it pull-start ?

Looks like it has a healthy 12vdc output built-in

Rgds, D.

 

[Williy]

I'm lazy I just turn the key I'm
old and kranky 82
It really don't seem to be that hard
to pull to start it has a lever you push
before you try to start

willy

 

[Patrick Herd]

This discussion makes me miss my old job at the technical college: I had seven figures worth of electrical engineering lab and test equipment at my disposal... I could have setup some really cool demonstrations in response to the questions being asked here.

 

[3930dave]

I'm lazy I just turn the key I'm
old and kranky 82
It really don't seem to be that hard
to pull to start it has a lever you push
before you try to start

willy

With that Decompression lever, should be not too bad....

Rgds, D.