Certification: | CCC, ISO9001 |
---|---|
Shell Material: | Epoxy Resin |
Voltage Level: | Medium Voltage |
Structure: | Floorstanding |
Current: | AC |
Rated Voltage: | 11/22kv,6.6kv,24kv |
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This type of SF6 gas insulated RMU is a compact metal sealing device that adopts a modular design, with perfect integration of fixed and flexible expansion, to meet the requirements of end users or network nodes, meet various switch distribution needs, and meet the needs of box type substations and cable branch boxes. The structure is compact, safe and reliable, with long service life, maintenance free, and so on.
Features:
Product Satisfaction
Item NO. | Name | Unit | Technical parameters | |||
GRM-C | GRM-F | GRM-V | ||||
1 | Rated Voltage Un | kV | 24 | 24 | ||
2 | Rated Frequency | Hz | 50 | 50 | ||
3 | Rated Current | A | 630 | 125 | 630 | |
4 | Rated Load Breaking Current | A | 630 | 125 | ||
5 | Rated Short Time Withstand Current(rms) | kA | 20 | 20 | ||
6 | Rated Short Time Duration | s | 3 | 3 | ||
7 | Rated Peak Withstand Current | kA | 50 | 50 | ||
8 | Rated Closed Switch - Off Current | A | 630 | |||
9 | Rated Cable Charging Breaking Current | A | 10 | 25 | ||
10 | Rated Active Load Breaking Current | A | 630 | |||
11 | Max. Transfer Current | A | 1750 | |||
12 | Expected Fuse Short-Circuit Breaking Current(rms) | kA | 50 | |||
13 | Earthing Switch 2s Short Time Withstand Current | kA | 20 | 20 | ||
14 | Rated Short-Circuit Current Making Times | Times | 2 | |||
15 | Rated Current Breaking Times | Times | 10 | |||
16 | Mechanical Endurance | Load Break Switch | Times | 5000 | ||
Earthing Switch | Times | 2000 | 2000 | |||
Disconnector | Times | 3000 | ||||
Circuit Breaker | Times | 10000 | ||||
17 | SF6 gas anual leakage rate | ≤1%/Y | ||||
18 | Rated Insulation Level | Unit | Technical parameters | |||
1min Power Frequency withstand voltage(rms) | On isolating distance | kV | 60 | |||
Phase to Phase | kV | 50 | ||||
Phase to Earth | kV | 50 | ||||
Lightning impulse withstand voltage(peak) | On isolating distance | kV | 145 | |||
Phase to Phase | kV | 125 | ||||
Phase to Earth | kV | 125 | ||||
21 | optional :Motorised Operating Mechanism- voltage | V | DC24,DC48,DC110,DC220,AC220 |
Working Environment
1.Altitude: Not exceed 2500m above sea level;
2.Ambient temperature:-25ºC ~ +45ºC, the highest temperature is not exceed25ºC;
3.Ambient humidity: Daily average RH ≤ 95%; Monthly average RH ≤ 90%
4.Earthquake intensity: ≤ 8°;
5.No flammable, explosive, no serious pollution, No chemical corrosion and severe vibration.
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