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Three Phase AC Air Load Break Switch , Transformer Load Break Switch 12kV
Three Phase AC Air Load Break Switch , Transformer Load Break Switch 12kV
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,1250A
Rated frequency :
50Hz
Type :
Outdor
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

12 vac relay

,

transformer circuit breaker

,

transformer switch
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Three Phase AC Air Load Break Switch , Transformer Load Break Switch 12kV

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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
Three Phase AC Air Load Break Switch , Transformer Load Break Switch 12kV

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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