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Message
re: Power Home HVAC with Portable Gen (Part 2: MicroAir 368 Review)
Posted on 7/19/22 at 3:39 pm to bapple
Posted on 7/19/22 at 3:39 pm to bapple
I have an oscilloscope, a current clamp that works with it, and a high voltage differential probe
I'll post some pictures of what a 3 Ton compressor start looks like electrically when i get some time
I'll post some pictures of what a 3 Ton compressor start looks like electrically when i get some time
1
Posted on 8/21/22 at 10:56 am to DVinBR
BEFORE INSTALLING HYPER ENGINEERING SOFT STARTER
1. yellow: voltage across start winding, blue: current into the common terminal (10mV/A)
2. more detailed voltage across the start winding
3. yellow: voltage across run winding, blue: current into common terminal (10mV/A)
AFTER INSTALLING HYPER ENGINEERING SOFT STARTER
1. voltage across run winding during start
2. more detail voltage across run winding during initial start
3. even more detail
4. voltage across run winding right before full voltage is applied
5. voltage across run winding after start
Clearly you can see a TRIAC firing on the start with the soft starter, and it's not a near 0 ramp, it begins with about 1/2 of a cycle and ramps up very fast staring after only 15 cycles or so
1. yellow: voltage across start winding, blue: current into the common terminal (10mV/A)
2. more detailed voltage across the start winding
3. yellow: voltage across run winding, blue: current into common terminal (10mV/A)
AFTER INSTALLING HYPER ENGINEERING SOFT STARTER
1. voltage across run winding during start
2. more detail voltage across run winding during initial start
3. even more detail
4. voltage across run winding right before full voltage is applied
5. voltage across run winding after start
Clearly you can see a TRIAC firing on the start with the soft starter, and it's not a near 0 ramp, it begins with about 1/2 of a cycle and ramps up very fast staring after only 15 cycles or so
This post was edited on 8/21/22 at 11:03 am
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