PRIMARY RELAY
A class with identifier
http://staging4.data.posccaesar.org/iso/15926-4/rdl/RDS957104
| Definition | A <PRIMARY RELAY> is an <ELECTRICAL RELAY> that is directly energized by the current or voltage in a main circuit, without an intermediate instrument transformer or shunt or transducer. |
| ISO number | 3233 |
| RDS number | RDS957104 |
| Source | IEV 446-15-11 |
| Electrical |