Hz question

[GoldDigger]

That a transformer? Lol I think I found the problem

I can't tell what it is from the picture. It might be a potted solid state control circuit.
In any case, even if you have not found the problem you have certainly found a problem.
Classic push on terminal problem, maybe the result of a wrong length wire in the harness? Or maybe just vibration?

 

[Onsite_energy]

Hz question

I'm thinking that's why its moved off the unit..... Wonder if an aftermarket avr would help this thing out a bit, at least those I can adjust


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[mjmike]

Not that it is related to Hz, but I recently built a small panel with an analog ammeter and volt meter to monitor power usage when I am running on backup power. Since my genset is 30A 120V output, I used a 50A analog meter by Blue Sea Systems #9630. It came with the CT. As for the volt meter, it was also by blue sea #9353. I hooked it to a 15A CB. The gauges have a DC backlight so I added as 12V power supply to the monitor panel also served by the 15A CB. I have the 15A feed fused at 1A in the monitoring panel. The ammeter is only monitoring the genset feed so as soon as load is applied the gauge works automatically. I can check the volts and turn the backlight on by flipping the 15A cb on.

 

[ATSman]

I've never seen one like this before

.... That a transformer? Lol I think I found the problem


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This looks like a full wave bridge rectifier with 4 terminals: 2 AC input and 2 DC output. Could this be part of the DC field for the voltage regulator?
If so then a DMM with a diode scale can verify if it is defective and the culprit.

 

[topgone]

This looks like a full wave bridge rectifier with 4 terminals: 2 AC input and 2 DC output. Could this be part of the DC field for the voltage regulator?
If so then a DMM with a diode scale can verify if it is defective and the culprit.

Yep, @ATSman, you're right. I tried looking for that part # ZPQ 10 and saw it is ZPQ 10-50, a generator bridge rectifier.

 

[Onsite_energy]

this should fix it


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[ATSman]

Replacement Bridge Rectifier

Replacement Bridge Rectifier

You can Google bridge rectifier and find many substitutes for that one but this one rated
at 50A @ 1000V will surely work:

http://www.cnelectr.net/diodes/pdf/kbpc50005.pdf

also attached is a T-shoot guide for checking if a BR
is shorted or open circuited