Siemens NXAirS User Manual

NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV
5
NXAirS description
NXAirS description
5. Features
NXAirS Switch panel has the following features
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Factory-assemble, type-test, indoor installation, according to GB3906, IEC62271-200/VDE0671-200 standards.
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Degree of continuity: LSC 2B
Feature of person Safety
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All switching operations can only be performed with front door closed
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Degree of protection: IP4X, according to part 1 of GB4208, IEC60529 and VDE0470
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Passed the test of internal arcs, according to GB3906\IEC62271-200
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Degree of PM(Metal)
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Reliable interlocks protect against accidental contact with live parts
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Mechanical status indication of circuit-breaker can be recognized through the inspection window, the status of the earthing switch
indicated on the front door.
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Logical control Interlocks prevent wrong operation
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Option: Voltage detector. The status in the switchgear panel can be recognized by voltage detection.
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Earthing status of the feeders can be recognized by auxiliary switch.
Feature of Operation
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Operations of switch are from the front of the panel
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The operation handle holes and control units are clearly allocated beside the mechanical indicators
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There are mechanical indicators of switch on mimic diagram
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Manual/Motor-driven cassettee and earthing switch
Flexibility
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Panel can be wall mounted or not.
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Cable connection can be done from both front and rear of the panel
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Middle place, withdrawable panel
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Connection of all normally used types of cables
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Extension of existing switchgear at both ends without modification of panels
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Easy to install or remove of bushing-type current transformer from front of the panel
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Several optional secondary capacity of current transformer
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Withdrawable parts with same code can interchange completely
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Easy replacement of compartment by modular bolted construction
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Busbar voltage sensors are installed in a separate additional compartment with pressure-resident partition to the busbar compartment
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Every compartment has pressure relief channel
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Pressure relief upwards for each compartment
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Pressure-resistant floor cover
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Control cables are placed in metallic cable ducts
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With cable testing device, the cable can be tested through the open partition of the switching compartment without switch off the
busbar
Figure 1. Front view of the switchgear

Siemens NXAirS Specifications

General

Brand	Siemens
Model	NXAirS
Category	Switch
Language	English