SF6 Gas Insulated Ring Main Unit 12 KV Metal - Enclosure Switchgear
Overview
HXGT6 (XGN58)-12 SF6 Ring Main Unit Switchgear (hereinafter referred to as “RMU”) is designed and developed by our company based on actual power supply situation of our nation. It is a new generation indoor 10kV MV electric appliance, and can be applied in city grid transformation and construction, the product is subjected to type test and commissioning examination, the performance indexes meet the requirements of IEC 298 “AC Metal Closed Switchgear”. It processes the advantages of small volume, low weight, simple operation, safe use, high reliability without influencing by environment and weather and maintenance-free.
The switchgear is a kind of composite apparatus which seals all main circuits in a metal enclosure and take SF6 gas as arc extinguishing and insulation medium. It is suitable for ring network power supply and double radiates power supply in 10kV MV power supply network. It is also used in terminal power supply. Due to the use of ring network power supply increases the reliability of power supply, it is specially used in mineral plants, residence area, schools, parks, and so on for power distribution and controlling. In addition, because of its convenient connection and installation, small volume, it is also used in the substation as high voltage equipment on primary side.
Service Condition
A. Altitude ≤1000m (above sea level);
B. Ambient temperature: -25ºC~+40ºC;
C. Wind speed ≤34m/s
D. The spot should have no regularly exquisite shake.
Basic Technical Parameters
| S/N |
Item |
Unit |
Parameters |
| 1 |
Rated Voltage |
kV |
12 |
| 2 |
Rated Frequency |
Hz |
50 |
| 3 |
Rated Load Switch Current |
A |
630 |
| 4 |
Rated Main Circuit Short-time Withstand Current (r.m.s) 3s |
kA |
20 |
| 5 |
Rated Main Circuit Dynamic Current (Peak) |
kA |
50 |
| 6 |
Rated Main Circuit Making Current(Peak) |
kA |
50 |
| 7 |
Rated Active Load Breaking Current |
A |
630 |
| 8 |
Rated Closed Loop Breaking Current |
A |
630 |
| 9 |
5% Rated Active Load Breaking Current |
A |
31.5 |
| 10 |
Rated Cable Charging Breaking Current |
A |
10 |
| 11 |
Rated Transformer No-load Breaking Current |
A |
1600kVA Transformer No-load Current |
| 12 |
Rated Fuse Breaking Current |
kA |
31.5 |
| 13 |
Rated Transfer Current |
A |
1500 |
| 14 |
Full Capacity Breaking Times |
Times |
100 |
| 15 |
Mechanical Life |
Times |
10000 |
| 16 |
1min Power Frequency Withstand Voltage to Earth, Between Phases/ Across the open gap |
kV |
42/48 |
| 17 |
Lightning Impulse Withstand Voltage to Earth, Between Phases/ Across the open gap |
kV |
75/85 |
| 18 |
SF6 Gas Rated Voltage (Gage Pressure is 20℃) |
Mpa |
0.04 |
| 19 |
SF6 Annual Gas Leakage Rate |
|
≤0.2％ |
| 20 |
Motor Operational Power Supply, Voltage |
V |
DC48, AC220, 110 |
| 21 |
Closing Motor Current |
A |
0.5 |
| 22 |
Opening Current |
A |
2.5 |
HV Fuse Technical Parameters
| S/N |
Rated Voltage |
Rated Fuse Current |
Rated Fusant Current |
Rated Breaking Current |
| XRNT |
12 |
40 |
6.3 10 16 20 25 31.5 40 |
31.5 |
| 100 |
50 63 71 80 100 |
31.5 |
| 125 |
125 |
31.5 |
Product Tags:
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Sf6 Gas Insulated Switchgear , Ring Main Unit 12 Kv Switchgear Metal - Enclosure Images
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