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Operation
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Fig. 180: Operating the three-position disconnector for the READY-TO-EARTH function
➭ Pre-select busbar system for switching operation.
Selector gate to the left: Busbar system 1. Selector gate to the right: Busbar system 2 .
➭ Push the left-hand control gate to the right.
✔ The opening for the READY-TO-EARTH function is free.
➭ Switch the three-position disconnector to READY-TO-EARTH position (insert the operating
lever for the READY-TO-EARTH function and turn 180° clockwise).
✔ The earthing switch is closed.
✔ The position indicator changes to READY-TO-EARTH position.
➭ Remove the operating lever for the READY-TO-EARTH function.
✔ The left-hand control gate returns to its initial position.
✔ The opening for the READY-TO-EARTH function is closed.
DANGER
Danger! High voltage! The earthing process is not completed until the circuit-breaker is closed.
➭ Close the circuit-breaker after having switched the three-position disconnector to READY-
TO-EARTH position.
➭ Close the circuit-breaker (see page 148, "Circuit-breaker operation").
Revision 06 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DB10 • 864-5091.9
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