Current Transformers
| Class | GEC/Astra | ABB | Associated | G.E. | Schlumberger |
|---|---|---|---|---|---|
| Miniature | TCW | CSF | HA-678 | JCR-0 | R6SA |
| Miniature | TCW | CSH | HA-781 | JCW-0 | R6S |
| Miniature-Bar | TAB | CBH | n/a | JCM-0 | R6B |
| Miniature-Bar | TCB | CBT | n/a | JCT-0 | |
| Intermediate | AB | CMF | WE0-601 | JAK-0 | |
| Large-Type I | AD | CLC/RLC | DEH-705 | JAD-0 | |
| Large-Type II | ACL | CLE | CEH-636 | JCD-0 | |
| Pad Mount | AP | CMV | GM-713 | JAB-0 |
Voltage Transformers
| Class | GEC/Astra | ABB | Associated | G.E. | Schlumberger |
|---|---|---|---|---|---|
| 500 Volt Amps | DB | PPM | CL-707 | JVA-0 | T6R |
| 300 Volt Amps | DF | PPW | n/a | n/a | T5R |