A ground wire over a three-phase transmission circuit.

Ground Wire

A ground wire over a three-phase transmission circuit.

Grounded street railway circuit.

railway circuit

Grounded street railway circuit.

A series circuit service switch.

service switch

A series circuit service switch.

A three phase circuit and voltmeter ground detector.

three phase circuit

A three phase circuit and voltmeter ground detector.

Symmetrical arrangement of conductors; an example of a three-phase circuit.

Three-phase Conductors

Symmetrical arrangement of conductors; an example of a three-phase circuit.