Commissioning; Final Work - Siemens NXPLUS C Installation And Operating Instructions Manual

Medium-voltage switchgear, fixed-mounted circuit-breaker switchgear up to 24 kv, extendable, single busbar, metal-enclosed, gas-insulated
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Auxiliary transformer
panel
Closing the front cover
802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11
18

Commissioning

Hazardous voltage.
Will cause death, serious injury and property damage.
Always observe the Five Safety Rules:
➭ Isolate.
➭ Secure against reclosing.
➭ Verify safe isolation from supply.
➭ Earth and short-circuit.
➭ Cover or barrier adjacent live parts.
High speed moving mechanical parts
Can cause death, serious injury or property damage.
Mechanical components may move quickly, even remotely controlled.
➭ Do not remove any covers from switchgear put into operation.
➭ Do not reach into openings.
18.1

Final work

➭ Check the data on the rating plate and the auxiliary voltage of the control and end devices
as against the requirements.
➭ Check ready-for-service indicator (see page 189, "Ready-for-service indicator").
➭ Check switchgear fixing.
➭ Check the earthing connections.
➭ Check the bolted joints of the low-voltage equipment at random.
➭ Check all parts of the switchgear that have been disassembled and assembled again at site
during installation or that have been installed subsequently, in order to verify correct
assembly and completeness.
Do only put the auxiliary transformer panel into operation when the transformer is completely
mounted.
➭ Check whether the transformer and the connection cables are completely mounted and
connected.
➭ Check whether the transport angles of the transformer connection cables are removed.
Internal arcing hazard and explosion hazard
Will cause death, injury or considerable property damage.
If the front cover is not bolted tight, the switchgear is not arc-resistant.
➭ Bolt the front cover together with the switchgear frame. Use the bolts with cutting ring
supplied with the switchgear.
➭ Hook the front cover in.
➭ Fasten the front cover at the lower edge tight using 2 bolts with cutting ring M5 (tightening
torque: 7 Nm).
DANGER
WARNING
DANGER
Installation
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