24kv GIS Ring Main Unit SF6 Gas Insulated Switchgear
GIS Insulated SF6 24kv Ring Main Unit Cabinet
Indoor switchgear
SF6 Metal Enclosed Ring Main Unit Cabinet
24KV 50/60Hz 630A
OEM & ODM require by email
ISO IEC standards
General
HXGN-10 type
(H-ring network cabinet; X-box type; G-fixed type; N-indoor) The cabinet structure is assembled by bending and welding steel plates, and the protection level is IP2X. The upper part of the cabinet is the busbar room, and the instrument room is located at the front of the busbar room, separated by steel plates. The middle of the cabinet is the load switch room, and an insulating partition is arranged between the load switch and other components. For the cable entry and exit cabinet, the bottom of the cabinet is equipped with a removable cover plate; for the overhead entry and exit cabinet, the top of the cabinet can be equipped with bus ducts or shielding racks.
HXGN-10 type
The HXGN-10 series air ring main unit has 15 schemes, of which scheme 01 is a load switch fuse cabinet; scheme 02 is a load switch cabinet, both of which are equipped with grounding switches; scheme 09 is a metering cabinet.
The shell of this series of ring network cabinets adopts steel plate bending and screw fastening assembly to form a metal fully enclosed structure. The cabinet is composed of 4 uprights, upper cover, lower bottom, front panel, back panel, side panel, etc. The front of the load switch cabinet has two upper and lower doors fixed with screws; the front of the load switch fuse cabinet has 3 door panels. There is an observation window on the door to observe the position of the load switch and the grounding switch; the busbar connection between the cabinet and the cabinet is in the form of plum contact plugging, and the busbar is equipped with an insulating sheath. An instrument box can be added to the top of the cabinet according to user requirements.
Service Environment
1. Air temperature: -35℃~+40℃
2. Humidity: Monthly average humidity 95%; Daily average humidity 90% .
3. Altitude2500m
4. Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
5. No frequent violent shake
Technical Date
No. |
Item |
Unit |
Parameter |
1 |
Rated voltage |
kV |
12 |
24 |
36 |
2 |
Rated frequency |
Hz |
50/60 |
3 |
Rated current |
A |
630(1250*) |
4 |
1min Power frequency
withstand voltage
|
wet |
kV |
38 |
50 |
70 |
dry |
kV |
48 |
60 |
85 |
5 |
Lightning impulse withstand voltage |
kV |
75 |
125/150 |
170 |
6 |
Rated short circuit breaking current (peak) |
kA |
80 |
63 |
63 |
7 |
Rated active load and close circuit breaking current |
A |
63 |
50 |
50 |
8 |
Rated transferring current |
A |
1700 |
1200 |
1200 |
9 |
Rated short circuit making current (peak) |
kA |
80 |
63 |
63 |
10 |
Rated cable(line) charging breaking current |
A |
50 and 10
50/10
|
11 |
Cable charge breaking current in earthing fault |
A |
20 |
20 |
20 |
12 |
Rated withstand current (peak) |
kA |
80 |
63 |
63 |
13 |
Short time withstand current (2s) |
kA |
25 |
20 |
20 |
14 |
Mechanism life |
times |
5000 |
2000 |
2000 |
Note: For short circuit breaking and peak current is based on Fuse plus combination