7EN02-0390-03

Residual current measurement

The meter can calculate or measure the residual current, depending on how the inputs are wired.

3 CT wiring

For a 3-phase 3-wire system, the meter calculates residual current for Ground.

For a 3-phase 4-wire system, the meter calculates residual current for Neutral.

For a 3-phase 3-wire system, the meter measures the residual current for Ground at I4.

For a 3-phase 4-wire system, the meter measures the residual current for Neutral at I4.

4 CT wiring

For a 3-phase 4-wire system, the meter calculates residual current for Ground.

For a 3-phase 4-wire system, the meter measures the residual current for Ground at I5.

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