Operating The Auxiliary Transformer Panel And Switch-Disconnector Panel - Siemens NXPLUS C Installation And Operating Instructions Manual

Operation
Precondition
Preparation
1
➭ Push the control gate to the left
and hold it.
✔ The actuating opening for
"spring charging" is free.
Precondition
Preparation
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30.8

Operating the auxiliary transformer panel and switch-disconnector panel

This chapter describes the manual operation of the following panel types:
• Ring-main panel
• Metering panel (gas-insulated)
The operations are shown using a ring-main panel as an example.
Connecting the feeder to the busbar
• Three-position switch-disconnector in OPEN position
• The feeder is isolated from supply (see page 207, "Verification of safe isolation from supply")
• "Spring charged" indicator shows "spring not charged".
• Check service readiness (see page 190, "Ready-for-service indicator")
2
➭ Insert the operating lever. Turn
clockwise as far as it will go.
✔ The "spring charged" indicator
shows "spring charged".
Disconnecting the feeder from the busbar
• Three-position switch-disconnector in the CLOSED position
• The feeder is isolated from supply (see page 207, "Verification of safe isolation from supply")
• "Spring charged" indicator shows "spring charged"
• Check service readiness (see page 190, "Ready-for-service indicator")
1
➭ Open the switch-disconnector to disconnect the feeder from the busbar.
✔ The switch-disconnector is in the OPEN position. "Spring charged" indicator shows "spring not charged".
The feeder is disconnected from the busbar.
Revision 02 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 806-9004.9
3
➭ Remove the operating lever.
✔ The control gate moves to its
initial position.
4
➭ Close the switch-disconnector
to connect the feeder to the
busbar.
✔ The switch-disconnector is in
the CLOSED position. The
feeder is connected to the
busbar.