Certification: | CCC, ISO9001 |
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Shell Material: | Epoxy Resin |
Voltage Level: | Medium Voltage |
Current: | AC |
Rated Voltage: | 11/22kv,6.6kv,24kv |
Rated Current: | 630A |
Samples: |
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The GRM series completely sealed SF6-insulated ring main unit, manufactured by GRENO (XIAMEN) SWITCHGEAR CO., LTD.. This innovative product is specifically developed for medium voltage distribution networks.
All live components of this ring main unit are securely sealed in a durable stainless steel tank, ensuring optimal safety and reliability. The tank is filled with SF6 gas, further enhancing the unit's performance and insulation properties.
The main panel type available for this ring main unit is the load break switch cubicle. This panel type offers efficient and convenient load break switching capabilities, making it an ideal choice for various applications.
Features:
GRENO (XIAMEN) SWITCHGEAR CO., LTD. is a reputable company in the field of switchgear manufacturing.
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 |
At GRENO (XIAMEN) SWITCHGEAR CO., LTD., we offer flexible packaging options to meet our customers' requirements. Our standard packaging includes carton or wooden packaging.
Before delivering our products, each item undergoes strict testing to ensure its quality. We are committed to providing reliable shipping services, and we can assist with arranging air, express, or sea shipping.
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