OK, I think I am still confused about how the GEM and Dashboard present Watts and Amps.
In a previous POST I asked a question about how the GEM was showing watts and amps. I thought I had it figured out, but now I am (again) not so sure.
Here is the background, hopefully, someone can make it clear for me:
I have a 240V Circuit for an Electric clothes dryer. There is no neutral. I have two CTs, one on each hot leg setup as a type-b dual CT configuration. I have verified and reverified proper configuration of the CTs and the GEM previously when I had this questions. My dryer is rated at 5,500 watts and it appears to be pulling over 5,200 watts during operation:
What I cannot for the life of me (still) figure out why the GEM is reporting 46 Amps. Somewhere this number must be getting doubled. 5,266 Watts / 240v should give me about 22 amps, not 46 amps. My breaker is only a 30 amp breaker.
Where in my GEM or dashboard setup can I adjust my settings to show the correct Wattage AND amperage?
Thanks!!
Still Confused - GEM Showing 46 Amps @ 240V but 5266 Watts
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Re: Still Confused - GEM Showing 46 Amps @ 240V but 5266 Wat
Deleted my previous post and attached a document Paul created that explains how power is calculated on the GEM.
If you want the DashBox to calculate VA, you're best off leaving it as-is as VA uses the voltage reference from the GEM (which is at 120V).
If you just want the Amps to show in the 240V range:
For balanced loads, you can get the amperage at a 240V level by removing 1 CT and then applying the "Multiply by Two" setting.
For unbalanced loads, you can increase the CT Range by 1 on the channel and then turn on the "Multiply by Two" setting.
If you want the DashBox to calculate VA, you're best off leaving it as-is as VA uses the voltage reference from the GEM (which is at 120V).
If you just want the Amps to show in the 240V range:
For balanced loads, you can get the amperage at a 240V level by removing 1 CT and then applying the "Multiply by Two" setting.
For unbalanced loads, you can increase the CT Range by 1 on the channel and then turn on the "Multiply by Two" setting.
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Ben
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E: ben(at)brultech.com
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Re: Still Confused - GEM Showing 46 Amps @ 240V but 5266 Wat
Ben -
Thank you. So basically, if I am using 2 CTs on a 240V circuit, I just need to cut the Amp reading in half because the GEMs voltage reference is 120V, is that correct?
Thank you. So basically, if I am using 2 CTs on a 240V circuit, I just need to cut the Amp reading in half because the GEMs voltage reference is 120V, is that correct?
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Re: Still Confused - GEM Showing 46 Amps @ 240V but 5266 Wat
Yeah, if you want it to log Amps at the 240V level you'll have to cut the amperage in half using one of the methods listed.G550_Pilot wrote:Ben -
Thank you. So basically, if I am using 2 CTs on a 240V circuit, I just need to cut the Amp reading in half because the GEMs voltage reference is 120V, is that correct?
Ben
Brultech Research Inc.
E: ben(at)brultech.com
Brultech Research Inc.
E: ben(at)brultech.com
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Re: Still Confused - GEM Showing 46 Amps @ 240V but 5266 Wat
Ben -
But the watts would be correct even if the amperage is showing double, correct?
But the watts would be correct even if the amperage is showing double, correct?
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Re: Still Confused - GEM Showing 46 Amps @ 240V but 5266 Wat
Yeah, the watts are correct.G550_Pilot wrote:Ben -
But the watts would be correct even if the amperage is showing double, correct?
Ben
Brultech Research Inc.
E: ben(at)brultech.com
Brultech Research Inc.
E: ben(at)brultech.com