Sf6 Gas Insulated Switchgear Gis Panel Ring Main Unit Rmu Switchboard Cabinet
GSM-12/24 SF6 RMU(refer to SM6 type) with SF6 load switch as main switch, the whole switchgear is suitable for electric distribution automation ,compact , expandable,economic.Features in its simple structure, flexible operation, reliable interlocking and convenient installation etc., which can provide the satisfactory technical projects both for different application occasions and users. With the adoption of sensor technology and the protection relay up to date, plus the advanced technology and flexible assembly project, GSM-12/24 SF6 RMU( SM6 type) can completely meet the requirement of continuously variable market. Operational methods for the main switch inside ring main unit can be either manual or electric power driven.
++++Service enviromenet
a) Air temperature: Maximum temperature: +40ºC; Minimum temperature:-5ºC
b) Humidity: Monthly average humidity 95%; Daily average humidity 90% .
c) Altitude above sea level: Maximum installation altitude: 2000m
d) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
e) No frequent violent shake
++++Units for all functions
1. Incoming unit with switch disconnector(Load break switch)
schemas With other extra components optional
2. Outgoing unit with Fuse-switch protection schemas
With other extra components optional
3.Incoming/outgoing circuit breaker protection schemas
With other extra components optional
4. MV metering schemas With other extra components optional
5. Casings (Bus bar Panel) schemas With other extra components optional
6. Others
++++Main technical specifications:
| Description |
Unit |
12kV |
24kV |
| power frequency withstand voltage(1min) phase to phase/earth |
kV |
42 |
50 |
| power frequency withstand voltage(1min) across the isolating distance |
kV |
48 |
64 |
| Impulse withstand voltage (phase to phase/earth) |
kV |
75 |
95 |
| Impulse withstand voltage (across the isolating distance) |
kV |
85 |
110 |
| Rated frequency |
Hz |
50,60 |
50,60 |
| Rated current |
A |
630 |
630 |
| Rated short circuit making current |
A |
50 |
50 |
| Mechanical lifetime |
Ops |
5000 |
5000 |
| Protection Degree |
|
IP4X |
IP4X |
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