star point

[vavavoom]

my boss has just informed me that if the earth( ground) is connected to star point it will potentially become live is this true

 

[davidbeach]

Live Earth? That would be a new one; ground (earth) is the reference voltage, anything solidly connected to ground is at zero volts. If there is current flow in the connection, there will be a voltage drop between the point measured and ground, but ground is still at zero.

 

[torslum]

Connecting the starpoint of a transformer, generator et.c. to ground is giving you a TN- or TT- system (the first T means solidly grounded neutralpoint). The other letter is determining how your PE-conductor goes.

If the neutral is not connected to ground, you would have a floating neutral, i.e. an IT-system.



tm

 

[ScottyUK]

Aside: 'T' comes from the Latin word for 'earth', Terra.


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One day my ship will come in.
But with my luck, I'll be at the airport!

 

[itsmoked]

Astute point ScottyUK! I was just thinking why "T"!?!?

You are clairvoyant.