Click image to view full size image
Model Number: GYJ-0051-#6871
Brand Name: GAOYAN
Key Specifications/Special Features:
Supply 2017 new vacuum breaker from china LW24-40.5/72.5T, H.V.A.C. dead tank type SF6 gas Circuit Breakers is a new kind of circuit breaker with self-blast interrupter and spring operating mechanism, on the basis of technology of product imported from Mitsubishi, JapanThe latest achieve- arc extinguishing principle of gas-blast pressure adapting with breaking-current is employed, by which most of energy required for breaking rated for short-circuit current are acquired from arc itselfTherefore, the demand for operating power is reduced significantlyThe three pole interrupters are placed inside three metal enclosures respectivelyThe circuit breaker can be mechanically three-phase gang operatedBoth remote electrical control and local manual control can be realizedType CT20-Ⅱ spring operating mechanism, provided with the product, is a kind of mechanism with low operating power, minimum maintenance work needed and high reliability. The product reaches international advanced level in the respect of main technical performance
No.ITEM
UNIT
LW9-40.5
LW9-72.5/T
LW25-126/T
LW25-252/T
1
Rated Voltage
kV
40.5
72.5
123/145
252
2
Rated Frequency
Hz
50
50
50
50
3
Rated Normal Current
A
3150/4000
3150/4000
2000,3150,4000
4000
4
Rated Short-circuit Breaking Current
kA
50
31.5/40
31.5/40
40,50
5
Rated Short Circuit Making Current
kA
125
80/100
80/100
100,125
6
Rated Short-time Withstand Current and Duration
kA
50(3s)
31.5（4s）/40（4s）
31.5（4s）/40（4s）
40（4s）/50(4s)
7
Rated Peak Withstand Current
kA
125
80/100
80/100
100,125
8
Short-line Fault Breaking Current
kA
Le*90%
Le*75%
9
Rated out-of –phase Breaking current
kA
Le*25%
10
Creepage distance
cm/ kV
3.1
3.1
2.5,3.1
2.5,3.1
11
1 min Power Frequency Withstand Voltage
Dry Test
Across Open Breaks
kV
95+23.4
160+42
230+95
460+145
To Earth
kV
95
160
275
460
Wet Test
Across Open Breaks
kV
95
160+42
230+95
460+145
To Earth
kV
185+33
160
275
460
12
Rated Lightning Frequency Withstand Voltage
Across Open Breaks
kV
185
350+59
650+100
1050+200
To Earth
kV
350
650
1050
13
5 min Power Frequency Withstand Voltage Under Zero-gauge Pressure
kV
1.3*40.5*√3
1.3*72.5*√3
1.3*145*√3
1.3*252*√3
14
Closing Time
ms
≤150
≤150
≤150
≤100
95
Shipping Information:
- FOB Port: Shanghai, Tianjin
- Lead Time: 45 - 60 days
- Dimensions per Unit: 3 × 2.22 × 2.12 Meters
- Weight per Unit: 1600 Kilograms
- Units per Export Carton: 1
- Export Carton Dimensions L/W/H: 3.33 × 2.52 × 2.42 Meters
- Export Carton Weight: 1600 Kilograms
Main Export Markets:
- Asia
- Mid East/Africa