Zhejiang Chuanxi Electric Complete Equipment Co., Ltd
XGN15-12 HV ring main unit ● Structure features
The cabinet is loaded by the busbar chamber and three stations switch Room (or circuit breaker room) Cable Room, operating mechanism, interlocking mechanism, low-voltage control room, measuring or metering circuit, etc.
For each compartment steel plate Separation can prevent the fault part from affecting the adjacent room.
XGN15-12 HV ring network cabinet ● Main technical parameters,
XGN15-12 HV ring network cabinet ★ See the following table for the rated parameters of load switch cabinet with load switch as the main switch
S/N Name Unit Data
1 Rated voltage kV 12
2 Rated current of main bus A 630
3 Rated current A 630
4 Rated frequency Hz 50
5 Rated short-time withstand current kA 20
6 Rated short circuit duration s 4
7 Rated peak withstand current kA 50
8 Rated short-circuit making current kA 50
9 Rated active load breaking current A 630
ten
Rated closed-loop breaking current A 630
11 Rated cable charging breaking current A 10
12 Rated short-time withstand current of grounding switch kA 20
13 Rated short circuit duration of grounding switch s 4
14 Rated peak withstand current of grounding switch kA 50
15 Rated absolute
Rated lightning impulse withstand voltage (peak value) at edge level Phase to phase, phase to ground kV 75
Fracture 85
1min power frequency withstand voltage (effective value) phase to phase, phase to ground 42
Fracture 48
16 Mechanical life (load switch) times 5000
Mechanical life (grounding switch) 2000
17 1min power frequency withstand voltage of auxiliary circuit kV 2
18 Rated pressure of SF6 gas (20 ℃ gauge pressure) MPa 0.04 ± 0.005
19 Annual leakage rate of SF6 gas ≤ 1%
20 Protection grade IP3X
XGN15-12 box type fixed indoor AC metal enclosed switchgear (SF6 ring network cabinet for short) is a new generation of ring network cabinet with SF6 load switch as the main switch. The cabinet is air insulated, compact and simple in structure, flexible in operation, convenient in installation, and has multiple interlocking functions. With Motor Structure, PT, CT UP S. FTU can be widely used in distribution network automation system. In addition to modern sensing technology and newer protection relays, with its advanced technical performance and lightweight and flexible assembly scheme, it can fully meet the changing needs of the market.
