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This is my thinking also. Additionally while you mention:
While you mention sixty 50 watt loads which is 3,000 watts assuming full load on each unit you are pushing your luck and your generator trying to run maximum. Even a 3,000 watt continuous power would not really be sufficient as there is...
So it's beyond economical repair?
I have an old Coleman Powermate 4000 going back maybe 30 years. That old generator saved me several times when my whole house unit failed. Briggs & Stratton 8 HP engine and your 2500 should be an 5 HP engine. Just a stator cost more than the unit new.
Ron
With the gasoline engine running the yellow wires are your excitation, measure across the yellow wires.
I know you have checked this but is the circuit breaker tripped?
Ron
The 741 is a poor choice, this is a 741 Data Sheet. I suggest you read it. The 741 is also a dual supply operational amplifier, not a single supply. Since you want a comparator verse op amp I suggest using a comparator circuit design. However if you insist on the ancient 741 operational...
OK so your buttons open/close a 10KV switch gear. That said what exactly are the buttons switching? Meaning what voltage and current do the buttons make and break? In the image posted it looks like you have access to the rear of the buttons.
Next if you want to do this using a solenoid as...
With the PSU Off you should see 5.0 volts between the PS_ON (Green Wire) and ground (any black wire. That 5.0 volts is from the 5.0 volt SB (Stand By) of the PSU. Where are you seeing 1.5 volts? That is peculiar. You may also wish to measure those same points on your working unit.
Ron
OK yes, the green wire Pin 14 on an older 20 pin PSU is PWR_ON and Pin 16 on newer 24 pin supplies. Some supplies want to see a load on the 5.0 volt bus so I normally used a 10 Ohm 10 Watt resistor on the 5.0 volt bus.
The green wire (PWR_ON) should show 5.0 volts to ground held high by an...
Given a choice I would use a flip flop as mentioned. I would likely use D flip flop like a SN7474 Dual D Flip Flop. Many wireless relay cards have a latching option but yours doesn't. So you click once and a pulse latches high, click again and the output goes low.
Relay boards are pretty...
That's what I would have done, worked fine for me in the past. A few drops of super glue and done for reassembly. When soldering always remember the bigger the blob, the better the job. :)
Ron
Budget? You also make no mention of uncertainty?
I used quite a bit of Micro Epsilon laser sensors which work fine but also have a cost, they aren't cheap. Another less accurate solution for measuring displacement is using a LVDT sensor to measure displacement. Less knowing the uncertainty you...
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