Sanhe Environment-friendly Climate Neutral gas RMU was used in China Grid projects. It is a switch-gear using Clean Air - an insulating gas exclusively consisting of natural elements of the ambient air.
The use of Environment-friendly Climate Neutral gas RMU ensures easy operation throughout the entire lifecycle. The gas-insulated load-break switch-gear with compact dimensions is environmentally friendly and maintenance-free for life, featuring a high level of operational reliability, person-al safety, and availability.
The hermetically sealed welded switchgear tank makes the parts carrying high voltage insensitive to ambient conditions, and prevents the ingress of foreign objects. Environment-friendly Climate Neutral gas RMU is a ring-main unit up to 12 kV, 20 kA and 630 A.
Feature:
Compact design
Maximum 6 loops could be accommodated in a single gas tank, space-saving, maintenance free
Environment-friendly structure
Hermetically tight gas tank make the parts of the primary circuit insensitive to certain aggressive ambient conditions, such as: Saline air,Air humidity, Dust And free from foreign objects etc
Maintenance-free design
Sealed pressure systems brings high reliability and safety.Finally,It is cost-saving.
Innovation system
Clear integration of secondary systems and combined protection and control units is well adapted to new system conditions.
Service life
The expected service life of gas-insulated switchgear is over 30 years. The product lifespan is 45 years
Specification
| Rated Voltage |
kV |
12 |
24 |
| Rated Frequency |
Hz |
50/60 |
|
| Power Frequency Withstand Voltage (1min)(Phase to Phase, Phase to Earth) |
kV |
42 |
50 |
| Power Frequency Withstand Voltage (1min)(Isolation Gap) |
kV |
48 |
60 |
| Lightning Impulse Withstand Voltage(Phase to Phase, Phase to Earth) |
kV |
75 |
125 |
| Lightning Impulse Withstand Voltage(Isolation Gap) |
kV |
85/95(optional) |
145 |
| Rated Current |
A |
630 |
630 |
| Rated Breaking Current for Cable Charging |
A |
25 |
25 |
| Rated Short Circuit Breaking Current |
kA |
25 |
25 |
| Rated Short Circuit Making Current(Peak) |
kA |
630 |
630 |
| Short Time Withstand Current (4s) |
kA |
25 |
25 |
| Rated Peak Withstand Current (Peak) |
kA |
63 |
63 |
| Mechanical Endurance |
Operating Cycles |
10000 |
10000 |
| climate netural gas Filling Pressure (Relative) |
MPa |
0.12 |
0.12 |
| Protection Degree |
IP67 for Gas Tank/ IP4X for Enclosureoutdoor enclosure IP54(optional) |
| Overall Dimensions(Width*Height*Depth) mm |
340*1458*780 |
Standards:
IEC 62271-103
IEC 62271-102
IEC 61869-11
IEC 61869-1 and -2
IEC 60044-8
IEC 62271-100
Audited Supplier 
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