Growatt N-G confusion

[MT off grid]

What happens if I have no ground in the array? Why would I be getting current on ground with everything off and disconnected?

 

[MT off grid]

No separate ground rods.
Only one grounding system for everything.
If your system isn't bonded, you'll always read strange voltages on ground. Because you have the system floating.
The proper way is the jumper from input neutral to output neutral.

 

[MT off grid]

No separate ground rods.
Only one grounding system for everything.
If your system isn't bonded, you'll always read strange voltages on ground. Because you have the system floating.
The proper way is the jumper from input neutral to output neutral.

 

[MT off grid]

I am bonded at the main panel, growatts have both NG bond screws removed, have input and output neutrald jumped,. turn off all solar inputs, no grid power, turn batteries off etc. Nothing is turned on and when I test from ground wire to mater main I show almost 2 watts

 

[timselectric]

I am bonded at the main panel, growatts have both NG bond screws removed, have input and output neutrald jumped,. turn off all solar inputs, no grid power, turn batteries off etc. Nothing is turned on and when I test from ground wire to mater main I show almost 2 watts

Not sure what you are testing.
Watts?
How?

 

[JRH]

Mike Holt is Gona turn him in…I just know it…I know it…

 

[MT off grid]

Not sure what you are testing.
Watts?
How?

 

[MT off grid]

Sorry, was in a hurry, meant AC volts not watts

 

[timselectric]

Sorry, was in a hurry, meant AC volts not watts

It's probably just random static . Or meter imperfections. There's always some voltage potential between two conductive surfaces. That aren't connected together.
I wouldn't worry about 2v.

 

[thewilliam]

At work (power plant) we always see stray voltages and typically discount them until recently when a stray voltage wasn't. The company bought us all stray voltage adapters for our meters.

Often that stray voltage is used to verify contacts closed or open on a circuit that might change state while measuring, a hard zero is closed.

 

[thewilliam]

Found this pdf, I didn't read the whole thread so it may not be relevant.
https://www.pge.com/includes/docs/p...er_quality_bulletin-issue_no.2_stray_volt.pdf