Many purchasing questions! (also, generators?)

[WorkshopChris]

So the spike mentioned is generated from nothing, the big bang theory all over again.

Having trouble keeping up with this, but isn't the spike caused in the difference in time between the operator breaking the arc (stop welding) and the time it takes for the governor to reduce engine speed to match the new load, resulting in a peak of high voltage higher frequency electricity. This is what normally upsets a basic inverter input side.

 

[windingroads]

Having trouble keeping up with this, but isn't the spike caused in the difference in time between the operator breaking the arc (stop welding) and the time it takes for the governor to reduce engine speed to match the new load, resulting in a peak of high voltage higher frequency electricity. This is what normally upsets a basic inverter input side.

There seems to be different opinions regarding what happens when one stops welding with a stick welder that is connected to a
generator, I have already been insulted and my posts labelled removed because of Flaming, so I can not explain or clear up what
I understand to be what happens.
If fact I asked for my account to be removed and my posts deleted.

 

[HughF]

Having trouble keeping up with this, but isn't the spike caused in the difference in time between the operator breaking the arc (stop welding) and the time it takes for the governor to reduce engine speed to match the new load, resulting in a peak of high voltage higher frequency electricity. This is what normally upsets a basic inverter input side.

It has a little bit to do with governor response, but most of it comes from load response on the alternators excitation. A capacitor excited alternator has pretty poor load response, even worse when driving poor power factors. An avr controlled alternator is much better in this regard.

 

[HughF]

Get yourself a godzilla! !!!!!!!!! View attachment 92540

Best... welder... ever...

 

[the snooper]

It has a little bit to do with governor response, but most of it comes from load response on the alternators excitation. A capacitor excited alternator has pretty poor load response, even worse when driving poor power factors. An avr controlled alternator is much better in this regard.

yes because a soon as the output voltage shoots up the voltage to the armature it cut making it almost instant

 

[HughF]

Exactly, an avr has a much faster feedback loop... this voltage spike isn't usually a problem, you turn off the motor that is connected to the generator, the power to the motor (or other load) is cut by the switch at the precise moment the generator output spikes, no harm done. A welder is a different kettle of fish, the load is removed from the generator but the input side of the welder is still connected to the spiking power source.

 

[Sarto]

How are the "new" styles of generator controllers like those Honda has?
Reading from their Website:
- inverter
- Cycloconverter
- D-avr
- i-AVR

Are they some marketing gimmick? Anyone knows?

 

[HughF]

They are all names for inverters...