Answer / carl_ellis

For fixed voltage, (assuming you mean ground-referenced), one DC line or one AC phase (or neutral) is connected to ground (AKA earth).

The output of a floating power supply is isolated from ground/earth.

A floating voltage is generally produced from the output of a transformer, a power supply or a battery, unless the circuit powered is tied to a ground reference.

A voltmeter will not detect a floating voltage when measuring between the floating point and ground.

Carl Ellis
Measure First

how can we measure the pressure in underground cooling water pipeline by using pressure transmitter?what about the tapping position?

2 Answers  

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how will do square root transmitter calibration

2 Answers   Roche,

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