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Author Topic: Solar Generation Sensing Using 20A CTs
chabotd
Newbie
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Posts: 4


« on: January 14, 2018, 04:53:17 PM »

I have a second MTU monitoring grid-tied solar generation. The PV system backfeeds the main breaker panel with a 35A 2-pole breaker.  I am using two 20A CTs, one on each leg of the 35A breaker. Will this work correctly or must I use the 200A CTs?

If the 20A CTs will work, do I have to do any calibration?
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pfletch101
Sr. Member
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Posts: 409


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« Reply #1 on: January 15, 2018, 05:18:16 PM »

AFAIK, the 20A CTs are only compatible with the Spyder device's inputs, unless you have 'special' 20A MTU CTs, which I am not aware of as being available. Unless one of the TED folks wanders by and gives a definitive answer, you may want to raise a ticket on the main site (http://www.theenergydetective.com/ticket) to ask this question.
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Peter R. Fletcher
TED Pro Home - main MTUs monitoring utility and PV Solar feeds; 2 Spyders monitoring selected individual circuits
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