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Outdoor High Voltage Vacuum Breaker

Outdoor HV Vacuum Breaker 12kV

Outdoor HV Vacuum Breaker 12kV

Mostly purpose ZW10-12、ZW12-12、ZW27-12outdoor hv vacuum breaker are three-phase ac outdoor hv switching devices,the breaker is mainly used for distribution systems in country or city network,mines,railway and ports with 12kv level,rated current 630a,rated frequency 50hz,especially for outdoor......

Mostly purpose

ZW10-12、ZW12-12、ZW27-12outdoor hv vacuum breaker are three-phase ac outdoor hv switching devices,the breaker is mainly used for distribution systems in country or city network,mines,railway and ports with 12kv level,rated current 630a,rated frequency 50hz,especially for outdoor overhead line ,it switches on/off load current and over load or short current to switch and protect electic networks ,maching with a disconnecting switch,the preaker can be a combined switch,the disconnecting switch is installed on the side of the breaker body,combining with the breaker by the angle iron under frame.on the transmission shaft,the interlocking device is installed for matching with breaker’s mechanism,so it can prevent from incorrect manipulation.

Matching with a re closing controller or segmentation controller,the breaker becomes a recloser(or sectional)intelligent breaker,matching with a re closing controller and PT ,the breaker has three segment compound protection of switch on rush current control,over current protection and short quick break,and it has 1~3times of reclosing ,low current ground protection,wired supervisory control functions ,it can slso remote control under the pole ,and comtinuously regulate parameters of the breaker ,it os an ideal choice for spot switch and simple measurement switch outside country network workstation .

Normal working environment
1. ambient temperature:+40℃~-40℃;
2. altitude:≤2000M,it should be custom-made for >2000M
3. wind pressure: ≤ 700PA(equivalent to wind speed 34m/s)
4. relative humidity:day value ≤95%,month value≤90%
5. pollution class: Ⅳ
6. surrounding air id not pouted by corrosive gas or inflammable gas seriously;
7. no frequent excessive vibration.

Technician parameter 

ITEM

UNIT

PARAMETER

rated voltage

KV

12

rated current

A

630/1250

power frequency withstand voltage

KV

42/48

lightning impulse withstand voltage(peak value)

KV

75/85

rated short circuit breaking current

KA

12.5 16 20 / 20 25 31.5

rated short current switching current (peak value)

KA

31.5 40 50 / 50 63 80

rated short time withstand current

KA

12.5 16 20 / 20 25 31.5

rated peak value withstand current

KA

31.5 40 50 / 50 63 80

breaking current frequency under rated shout circuit

TIMES

30

mechanism life

TIMES

10000


Externality & Build in Dimension

图1.jpg

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