SF6 customized medium voltage gas insulated ring main unit switchgear
XGN15A-12 (SF6) customized medium voltage gas insulated ring main unit switchgear
Overview
XGN15A-12 (SF6) unit type AC metal enclosed ring network switchgear (hereinafter referred to as ring network cabinet) is a new generation that we have designed and developed successfully after introducing advanced foreign technology and in accordance with the requirements of domestic rural power and urban network transformation. High-voltage electrical products. All technical performance indicators are fully IEC62271-200:2003 and GB3906 standards.
The main switch, operating mechanism and components of the ring main unit adopt the original parts of ABB company or adopt the imported parts of SFL-12/24 type switchgear produced domestically. It can also be equipped with ABB company’s original HAD/US type SF6 according to user needs. Circuit breaker or VD4-S vacuum circuit breaker. Its operation mode is divided into two kinds of manual and electric.
Model meaning
MODEL:XGN15A-12 SF6 |
X: | Box type ring network cabinet |
G: | Fixed | |
N: | indoor | |
15A: | Design Number | |
12: | Rated voltage (kV) | |
SF6: | The main switch in the cabinet is SF6 switch |
Conditions of Use
• Ambient temperature: upper limit +40℃, lower limit -25℃;
• Altitude: The altitude does not exceed 2000m;
•Relative temperature: daily average is not more than 95%; monthly average is not more than 90%;
• Surrounding environment: the surrounding air is not significantly polluted by corrosive gas, flammable gas, water vapor, etc.;
• No frequent severe vibrations.
Specification
Description
|
Unit
|
LBS unit
|
Switch-fuse unit
|
VCB unit
|
|
Rated voltage
|
kV
|
24
|
24
|
24
|
|
Power frequency withstand voltage (1min)
|
Phase to phase/earth
|
kV
|
50
|
50
|
50
|
Across the isolating distance
|
kV
|
60
|
60
|
60
|
|
Impulse withstand voltage
|
Phase to phase/earth
|
kV
|
125
|
125
|
125
|
Across the isolating distance
|
kV
|
145
|
145
|
145
|
|
Rated frequency
|
Hz
|
50, 60
|
50, 60
|
50, 60
|
|
Rated current
|
A
|
630
|
125
|
630
|
|
Rated short circuit breaking current
|
kA
|
31.5
|
20
|
||
Rated short time withstand current
|
kA/s
|
20/3
|
20/3
|
||
Rated peak withstand current
|
kA
|
50
|
50
|
||
Rated short circuit making current
|
kA
|
50
|
80
|
50
|
|
Rated transfer current
|
A
|
1400
|
|||
Rated active load breaking current
|
A
|
630
|
|||
Rated closed loop breaking current
|
A
|
630
|
|||
Mechanical lifetime
|
Ops.
|
5000
|
5000
|
10000
|
|
Annual leakage rate
|
<0.02%
|