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Load Control Air Load Break Switch , High Voltage Load Break Switch Short Circuit Protection
Load Control Air Load Break Switch , High Voltage Load Break Switch Short Circuit Protection
Specifications
Place of Origin :
China
Brand Name :
Comking
Certification :
ISO9001,ISO14001,OHSAS18001
Model Number :
CKWZ
Packaging Details :
Wooden Packing
Delivery Time :
10-15 work days
MOQ :
1set
Price :
To be discussed later
Payment Terms :
L/C, T/T, Western Union
Rated Voltage :
12kV
Rated current :
630A
Rated frequency :
50Hz
Type :
Outdoor
Description

1. Description

CKWZ is a three-phase AC outdoor vacuum circuit breaker maximum up to 24kV rated voltage and 50Hz rated frequency.

2. Working Condition

2.1 Ambient air temperature: -45℃～+40℃,daily range of temperature: diurnal variation 25℃

2.2 Relative humidity: daily average data ≤95%, monthly average data ≤90%

2.3 Seismic capacity: ≤magnitude 8, horizontal acceleration ≤ 0.4g, vertical acceleration ≤ 0.2g

2.4 Altitude: ≤1000m

2.5 Pollution classification: IV.

2.6 Wind speed: ≤35m/s

2.7 Applicable in the places without fire, without explosion risk, and without violent vibration

(Exceeding above working condition is available as customized product)

3. Technical Data

Description Unit Parameter
Rated voltage kV 12 24
Rated frequency Hz 50 50
Rated current A 630 630
Rated short-time withstand current(4s) kA 20 20
Rated peak withstand current kA 50 50
Rated short-circuit making current(peak) kA 50 50
Rated short-circuit breaking current kA 20 20
Breaking times for rated short-circuit breaking current times 30 30
Mechanical life times 10000 10000
Power frequency withstand voltage(1min) kV 42/48 50/60
Lighting impulse withstand voltage kV 75/85 125/145
Clearance between open contacts mm 9±1 12±1
Withstand voltage for secondary circuit (1 min) V 2000 2000
Opening speed m/s 1.2±0.2 1.4±0.25
Closing speed m/s 0.8±0.2 0.8±0.2
Bounce time for contact’s closing ms ≤2 ≤2
Opening simultaneity for three-phase ms ≤2 ≤2
Loop resistance (without disconnector) μΩ <80 <80

4. Standard

---- GB1984-2003

---- GB/T11022-2011

---- GB/T11023-1989

---- GB311.1-1997

---- DL/T593-1996

---- DL/T402-1999

---- GB/T3309-1989

---- DL403-1999

---- IEC62271-100

Product tags

high voltage load break switch

,

medium voltage load break switch

,

12kv load break switch
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Load Control Air Load Break Switch , High Voltage Load Break Switch Short Circuit Protection

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Product Detail
Place of Origin :
China
Brand Name :
Comking
Certification :
ISO9001,ISO14001,OHSAS18001
Model Number :
CKWZ
Packaging Details :
Wooden Packing
Delivery Time :
10-15 work days
Contact Supplier
Load Control Air Load Break Switch , High Voltage Load Break Switch Short Circuit Protection

Zhuhai Comking Electric Co.,Ltd.

Active Member
6 Years
guangdong, zhuhai
Since 2006
Business Type :
Manufacturer
Main Products :
Power Distribution Switchgear, Solid Insulated Switchgear, Gas Insulated Switchgear
Employee Number :
300~500
Certification Level :
Active Member
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