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%

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