Open circuit voltage

From GAWDAwiki

Open circuit voltage (OCV) describes the voltage between the terminals of the welding source when no current is flowing in the welding circuit.^[1] The voltage is impressed upon the circuit, however, so that when the circuit is completed, the current will flow immediately. For example, a welding machine that is turned on but not being used for welding at the moment will have an open circuit voltage applied to the cables attached to the output terminals of the welding machine.^[2]

References

1. http://www.weldguru.com/welding-terminology.html
2. http://www.millerwelds.com/interests/instructors/pdf/Glossary.pdf