Motor starting surge on a generator?

[qcroanoke]

I've heard you guys say many times "add some incandescent bulbs to the led load"
Could that help?

 

[synchro]

What would really help is a video with sound showing the genset and the lights together. Maybe tach or line voltage also. Then we can see the sequence of things.

I agree.
I also think including an incandescent lamp connected to an LED lighting circuit could provide additional insight into what's going on.
It's conceivable that a higher frequency transient, for example when a starting capacitor is disconnected, could interfere with electronics in LED lights but would have minimal impact on an incandescent bulb.

 

[synchro]

I've heard you guys say many times "add some incandescent bulbs to the led load"
Could that help?

It looks like we brought up incandescent bulbs within a minute of each other.

I was thinking of an incandescent bulb more as a diagnostic tool rather than a fix for flickering LED problems. If there are dimmers driving the LED lamps, then I think an incandescent load placed on the dimmer output could possibly help. I think it's less likely that putting an incandescent load directly on the AC supply powering the LED lights would help, but it doesn't hurt to try.

 

[JoeStillman]

If there is a long cable with the generator at one end and the ice cream machine and the LED's at the other, the fix may not be at the generator. Maybe you need to separate the feeds.

If you stand by the generator while someone pours a cone, do you hear the generator grunt?

 

[ptonsparky]

If there is a long cable with the generator at one end and the ice cream machine and the LED's at the other, the fix may not be at the generator. Maybe you need to separate the feeds.

If you stand by the generator while someone pours a cone, do you hear the generator grunt?

Blowing black smoke might be an indicator. Of something.

 

[Deltaforce]

LED flicker, augur motors not operate, also to check

 

[synchro]

If the ice cream machine motors are single phase, perhaps the starting capacitors are degraded and causing an eccessive starting current. If a meter has not been used to measure the peak current in "inrush" mode, doing so could be helpful to determine whether the starring current is reasonable or excessive.

 

[ptonsparky]

Could the mix be too cold?

 

[TwoBlocked]

I'm a gonna wait 'til we hear back from Zbang, the OP

 

[Joethemechanic]

Could the mix be too cold?

I like it that way

 

[synchro]

Alternatively, you could use a small inverter generator on the lighting like they do to power up those tripod puffer lights for road construction. You said 100s of LEDs. If they're like 10W ea, that's just a few kWs.

Another alternative if the load from the LED lights is a few kWs would be a double conversion UPS. This might even provide some safety advantages by keeping the lights on if the generator power drops out.

 

[ptonsparky]

Check my crude math but two 2 Hp starting at the same time and, assuming 6 times FLA, is going to equal about 24% of that 75kva. I guess there could very well be a dip in voltage.

746*2*2*6=17904