Siemens Nxairs-12kV Air/gas Insulated Medium Voltage Electrical/power Distribution Panels/switchgear

Product Detail

SIEMENS NXAirS-12 kV Air Insulation Withdrawable Metal-clad medium-voltage Switchgear

1. Characteristics

· Mechanical dynamic position indicator

·The closing/opening status of disconnecting switch and grounding switch can be indicated respectively on mechanical dynamic position indicator.

·Operating handle socket and control elements are obviously set adjacent to closing/opening indicator of controlled switches.

· All the switch operations can be carried out when high-voltage compartment door closed.

· All the parts and components installation heights meet the requirements of human engineering.

· Options: Capacitive electric indicator can be used to detect feeder or power of busbar.

2. Electric Parameters

- Rated voltage	kV	7.2	12
- Rated frequency	Hz	50	50
-   Rated short-time power frequency withstand voltage (interphase, to-ground)	kV	32	42
- Rated lightning impulse withstand voltage   (interphase, to-ground)	kV	60	75
-   Rated short-circuit breaking current	MAX	kA	40*	40*
- Rated short-time withstand current, 4s	MAX	kA	40*	40*
- Rated short-circuit closing current	MAX	kA	100*	100*
- Rated peak withstand current	MAX	kA	100*	100*
- Rated bus current	MAX	A	4000	4000
- Feeder current1)	A
Circuit breaker cabinet	4000	4000
Contactor cabinet	250	160
Disconnecting handcart cabinet	4000	4000
Bus segment cabinet	4000	4000
Bus lifting cabinet	4000	4000

·  *: It is applicable to switchgears outside of contactor cabinet.

3. Overall Dimensions 

Width mm	Circuit breaker cabinet
≤630A	650
1250A~2500A	800
3150A~4000A	1000
Disconnecting handcart cabinet
≤2500A	800
3150A~4000A	1000
Transformer used in substation	1000
Bus segment cabinet
≤2500A	2×800
3150A	2×1000
Measuring cabinet	800,1000
Lifting cabinet	800,1000
Contactor cabinet	650
Height2) mm	≤31.5KA	2200
40 kA	2300
Switchgear used in substation	2500
Contactor cabinet	2200
Depth3) mm	assembled with ordinary circuit breaker
≤31.5 kA and bus current≤2500A	1350
≤31.5 kA and bus current≥3150A	1450
40 kA	1450
assembled with solid-closure circuit   breaker
≤31.5 kA and bus current≤2500A	1350
≤31.5 kA and bus current≥3150A	1500
40 kA	1500
Contactor cabinet	1350,1500
Weight kg	1250A/31.5 kA standard cabinet	About 850kg
3150A/40 kA standard cabinet	About 1300kg

Note 1) The rated current of switchgear under forced air cooling is up to 4000A;

          2) H1: the height from standard low-voltage compartment top to the ground is 2075mm;

         H2: the height from raising low-voltage compartment top to the ground is 2350mm;

         3) upper outgoing, or bus accessories, bus current ≤ 2500A,cabinet deepens 130mm;

        upper outgoing, or bus accessories, bus current>2500A,cabinet deepens 200mm;

        Backpack plans, rated current ≤2000A, the depth is 460mm;

        Backpack plans rated current >2000A, the depth is 620mm

XD HI-TECH, established in 2007, is one of the excellent manufacturers in China. Come and find siemens nxairs-12kv air/gas insulated medium voltage electrical/power distribution panels/switchgear distributors from our factory. With high precision and good performance, our custom products have a wide application field. Welcome to wholesale our quality products and the PDF display is also offered.