How To Wire Single Phase kWh meter (3-phase,4 Wire Energy Meter) ?
The Red Wire shows the Live or Line or Phase and the Blake shows the Neutral wire.
This image shows the above idea in very simple way.
Click image to enlarge
in the above image,
Pin = incoming Phase or Live
Pout = Out going Phase.
Nin = incoming Neutral
Nout = Out going Neutral
Warning: This example shows the most common arrangement in the world, but there are variations. The setting may be different in other type of kWh meter in different areas. if confuse, Please contact to the supply and service provider to confirm the connection type.
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