864-5091.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DB10 • Revision 06
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Operation
39.4
Emergency release of the interlock with solenoids
at the busbar earthing switch
To push the control gate from center position to right position:
➭ Remove the left-hand plastic split rivet.
➭ Insert the screwdriver through the left-hand opening and push the solenoid back.
➭ Push the control gate to the right.
✔ The left-hand solenoid is released again, blocking further movements.
Fig. 198: Pushing the control gate to the right position (basic scheme)
To push the control gate from center position to left position:
➭ Remove the right-hand dummy plug.
➭ Insert the screwdriver through the right-hand opening and push the solenoid back.
➭ Push the control gate to the left.
✔ The right-hand solenoid is released again, blocking further movements.
DANGER
If the interlocking of the control gate is eliminated, switching operations are possible that can
cause an arc fault which will endanger the life of the people present and damage the
switchgear.
➭ Do only eliminate the interlocking of the control gate to push the control gate to the center
position.
➭ Do not perform switching operations.
➭ Use a screwdriver that fits the hole diameter of the solenoid openings.