Brand: ABB
Category: Power Supplies
Document Type: Manual
Language: EN
Manual for GSec
Uploaded: April 20, 2026, 7:56 p.m.
Manual Publish Date: 2018-04
Warranty Information
Refer to your ABB representative for specific warranty details.
Switch-disconnector Operations:
- Closing from 'open' position: Fit lever into upper hole, turn clockwise to 'closed'.
- Opening from 'closed' position: Fit lever into upper hole, turn counter-clockwise to 'open'.
- Switching from 'open' to 'earthed': Fit lever into lower hole, turn clockwise to 'earthed'.
- Opening from 'earthed': Close cable compartment door.
Earthing Switch Operations: Operated in manual mode only.
General Precautions: Operations must be completed with the lever removed from the seat. Use dedicated lever, do not force interlocks. Ensure apparatus is in 'open' position with springs discharged before any operation.
Troubleshooting and error codes
| Problem | Action to be taken |
|---|---|
| All unit types | |
| Switch-disconnector cannot be closed. | Check that switch-disconnector is in the "open" position. Turn the operating lever clockwise. |
| Switch-disconnector cannot be opened. | Check that switch-disconnector is in the "closed" position. Turn the operating lever counter-clockwise. |
| Switch-disconnector cannot be moved to the "earthed" position. | Check that switch-disconnector is in the "open" position. Turn the operating lever clockwise. |
| Switch-disconnector cannot be moved from the "open" to the "earthed" position. | Check that the operating lever is connected to the earthing shaft. Check that switch-disconnector is in the "earthed" position. Turn the operating lever counter-clockwise. Check that the operating lever is connected to the earthing shaft. Check that switch-disconnector is in the "earthed" position. |
| Cable compartment door will not open or close. | Check that switch-disconnector is not in the "earthed" position. Check that the auxiliary power supply is connected. |
| Motor-operated switch-disconnector | |
| Switch-disconnector cannot be closed or opened. | Check to see whether a fuse has blown. Check that the lever is not in the operating hole. Check that the locking part is in the down position. Check that the fuse has been correctly fitted with the trip pin indicator pointing upwards. |
| Combined switch-fuse unit | |
| Combined switch-fuse unit will not close. | |
| Combined switch-fuse unit is impossible to operate even though a fuse has blown. | |
| Circuit-breaker unit | |
| The cable compartment door will not open. | Check that switch-disconnector is in the "earthed" position. Remove the key from the circuit-breaker before opening or closing the door. Make sure that the closing spring is fully loaded and that the interlocking coil is not energized. Check that the circuit-breaker key is in place and turned to the correct operating position. Check that the auxiliary voltage plug of the circuit-breaker is properly plugged into its socket. |
| The circuit-breaker will not close. | |
| Instrument transformers | |
| Secondary measurements from the current transformers are not possible. | Check that all short-circuiting connections on the secondary terminals of the current transformers have been removed. Check the connections. |