HXGN17-12 SF6 Gas Insulated Ring Main Unit Electrical RMU 15KV 630A

Overview

HXGN17-12 AC metal ring network switchgear (vacuum load switch) (referred to as ring network cabinet) is a new type of high-voltage switchgear produced for the needs of urban power grid transformation and construction. In the power supply system, it is also used for breaking load current, short-circuit current and closing short-circuit current. This ring network cabinet is equipped with FZRN25. FZRN21 vacuum load switch. The operating mechanism is a spring mechanism. This mechanism can be operated manually or electrically. operating. Grounding switch and isolating knife are equipped with manual operating mechanism. The ring main unit has strong complete set, small size, no burning and explosion hazard, and reliable “five prevention” functions.
This ring main unit complies with the relevant regulations of GB3906 «3-35kV AC Metal-enclosed Switchgear” and IEC60420 “High Voltage AC Load Switch Fuse Combination Electrical Appliances” standards.

Model meaning

Model:HXGN17-12 □ R □

H: Ring network unit
X: Box structure
G: Fixed
N: indoor
17: Design Number
12: Rated voltage
□: Z: Vacuum load switch None: Pneumatic load switch
R: Fuse
□: Rated current (A)

Conditions of Use

•Ambient air temperature: -15°C~+40°C;
• Altitude: 1000m and below;
•Humidity conditions: the daily average value is not more than 95%, the daily average water vapor pressure does not exceed 2.2kPa; the monthly average value is not more than 90%, and the monthly average water vapor pressure does not exceed 1.8kPa;
•Earthquake intensity: no more than 8;
• There is no obvious pollution place such as corrosive or flammable gas.
Note: If the above conditions of use are exceeded, the user can negotiate with our company.

 

Type HXGNO-12 box type fixed metal closed switchgear (referred to as ring network cabinet) is a complete set of AC high voltage electrical equipment with rated voltage from 12kV to 35kV and rated frequency of 50Hz. It is mainly used in three-phase AC ring network, terminal distribution network and industrial electrical equipment for receiving and distributing electric energy. It is also suitable for loading into box type substation.

Serial number
Project
units
FN12-10
FZN25-12
1
Rated voltage
kV
12
2
1min power frequency withstand voltage
Ground and interphase 42; Isolation fracture 48
3
Lightning impulse voltage (peak value)
Ground and interphase 75; Isolation fracture 85
4
Rated frequency
Hz
50
5
Rated current of main bus
A
630
6
load
Rated current
630
7
switch
Lifetime at rated current
Times
Not less than 100
8
 
Breaking no-load transformer capacity
kVA
1250
9
 
Rated thermal stability current
kA/s
20/4;
Ground switch 20/2
10
 
Rated dynamic stability current (peak value)
kA
50
11
 
Rated short-circuit making current (peak value)
50
12
combination
Fuse rated current
A
100
13
Electrical appliances
Rated transfer current
1500
2000
14
 
Rated short-circuit breaking current
kA
31.5
15
 
Equipped with fuse model
 
SQLAJ-12(XRNTa-10)
16
Mechanical life
Times
2000
10000
17
Auxiliary circuit 1min power frequency withstand voltage
kV
2
18
Working voltage of electric operating mechanism
V
Ac/dc 220;110
19
Protection level
 
IP2X
20
Dimensions (width x depth x height)
mm
650(850)x900x2000(2200)