Description; Features - Siemens NXPLUS C Installation And Operating Instructions Manual

Description

Typical uses
Insulating gas SF
Technology
Personal safety
Security of operation and
availability
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Description
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Features

Extendable fixed-mounted circuit-breaker switchgear NXPLUS C Wind, single busbar, is used,
above all, in wind turbines.
The panels are designed for rated voltages up to 36 kV, rated currents up to 1000 A, and a
rated short-time withstand current of 25 kA as a maximum.
Sulfur hexafluoride SF
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and against the earthed vessel wall. For panels with switch disconnector, SF
extinguishing the internal arc.
The switchgear is delivered ex works with SF
provided to last the total service life of the switchgear.
No gas work is required for installation on site and later extensions.
Filling quantity as per rating plate.
• Factory-assembled, type-tested and metal-enclosed switchgear for indoor installation
• Stainless-steel vessel welded gas-tight
• Switchgear vessel, gas-insulated
• Single-pole insulated: cable connection and busbar
• Installation and extension without SF
• Screened busbar system, insulated with silicone rubber
• Three-position switch-disconnector with load-break and make-proof earthing function
• Cable connection from front with cable plugs
• Maintenance-free
• Safe-to-touch due to metal enclosure of live parts
• Clear mimic diagram with mechanical position indicators
• Logical mechanical interlocking
• Capacitive voltage detecting system to verify safe isolation from supply
• Earthing of feeders by means of the earthing function of the three-position disconnector in
the disconnector panel, earthing of feeders by means of the earthing fuction of the three-
position disconnector in the ring-main panel and make-proof earthing through the three-
position disconnector and the circuit-breaker in the circuit-breaker panel
• Resistance to internal arcing
• Hermetically sealed primary enclosure independent of environmental effects such as
pollution, humidity and small animals
• Welded switchgear vessel, sealed for life
• Operating mechanisms of switching devices accessible outside the switchgear vessel
• Maloperation is practically excluded due to interlocks and logical arrangement of operating
elements.
• Ready-for-service indicator self-monitoring, easy to read, independent of temperature and
environmental pressure variations, with contactless measured-value acquisition and with
signaling contacts (option) 1NO + 1NC for telecommunication
• Minimum fire load
• Switchgear vessel designed as "sealed pressure system" according to IEC 62 271-200, i.e.
the insulating gas filling requires no maintenance
Revision 05 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C Wind • 802-9074.9
is used as insulating gas. SF
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filling, ready for service. The SF
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gas work
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insulates live parts between each other
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serves also for
filling is
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