RMR Series Solid Insulation Ring Main Unit (Core Mechanism & Ring Main Cabinet)
Key attributes
| Brand | ROCKWILL |
| Model NO. | RMR Series Solid Insulation Ring Main Unit (Core Mechanism & Ring Main Cabinet) |
| Rated voltage | 12kV |
| Rated normal current | 630A |
| Rated frequency | 50Hz |
| Series | RMR |
Product descriptions from the supplier
Description
Product Overview
The RMR-12 solid core switchgear and solid cabinet are a new generation of fluorine free and environmentally friendly ring network switchgear developed to replace traditional SF6 gas insulated ring network switchgear. They have the characteristics of small size, complete solutions, modularization, and serialization. The product is suitable for rated voltage 12kV and rated frequency 50Hz power supply systems, mainly used for ring network power supply or dual radiation power supply systems, and can also be used for terminal power supply, such as outdoor prefabricated box substations, as the control and protection of electrical energy; The product performance complies with the provisions of national standards and industry standards such as GB/T111022 "Common Technical Requirements for High Voltage Switchgear and Control Standards", GB1984 "High Voltage AC Circuit Breakers", GB1985 "High Voltage AC Isolation and Grounding Switches", GB3906 "3.6kV~40.5kV AC Metal Enclosed Switchgear and Control Equipment", IEC298, etc;
The RMR-12 solid core unit adopts a three-phase split structure, with the vacuum arc extinguishing chamber and conductor of the primary main circuit firmly sealed in epoxy resin. The isolation switch is located in a closed chamber formed by epoxy resin, which has strong insulation performance and high protection level; In view of the difficulties in local discharge control of epoxy resin insulated parts with complex structure, our company has carefully optimized the shape and internal structure of the pole. The vacuum interrupter is coated with high-quality liquid silica gel, the surface of the primary conductor is sandblasted and coated with special adhesive to achieve a good combination of different materials and epoxy resin. At the same time, vacuum mixing, APG pressure gel technology and strict and meticulous production process are used, Ensure that the density of the solid sealing pole material is high, the exhaust is thorough, there are no impurities or pores inside, the electric field distribution is uniform, and the partial discharge amount is low;
The RMR-12 solid state cabinet has the characteristics of complete primary scheme, strong adaptability, and high standardization. Among them, the upper isolation scheme meets the standardized design customization scheme of the 12kV ring network cabinet of the State Grid. The lower isolation and combination electrical scheme of the same series can also meet the needs of the majority of conventional expansion projects. Moreover, the upper and lower isolation and combination electrical scheme cabinet body dimensions are consistent, and can be used in any combination, in conjunction with PT, isolation, breaking, etc The comprehensive coverage of the 12kV solid insulation ring network cabinet can be achieved by upgrading and measuring units;
The basic external dimensions of RMR-12 solid cabinet are 420 wide × 875 deep × 1700 high, with a minimum cabinet width of 400mm.
Normative references
Solid insulation ring network switchgear involves many standards, and only the directly referenced standards are listed here. The indirectly referenced standards are no longer listed one by one. If the version number is not marked, it indicates that the product reference is the latest valid version.
- GB 1984 High Voltage AC Circuit Breakers
- GB 1985 High voltage AC disconnectors and grounding switches
- GB 3804 3.6–40.5kV High Voltage AC Load Switch
- GB 3906 Rated Voltage 3.6kV~40.5kV AC Metal Enclosed Switchgear and Control Equipment
- GB/T3309 Mechanical Testing of High Voltage Switchgear at Room Temperature
- GB 16926 AC High Voltage Load Switch Fuse Combination Electrical Appliances
- GB/T16927.1 High voltage testing techniques – Part 1: General testing techniques
- GB/T11022 Common Technical Conditions for High Voltage Switchgear and Control Equipment Standards
- DL/T158612KV Solid Insulated Metal Enclosed Switchgear and Control Equipment
- DL 404 Technical Conditions for Ordering AC High Voltage Indoor High Voltage Switchgear
- Altitude ≤ 3000M;
- Environmental temperature: minimum -25 °C; Up to 40 °C
- Environmental relative humidity: The daily average value shall not exceed 95%, and the monthly average value shall not exceed 90%;
- There should be no fire or explosion hazards in the environment, no chemical corrosive or combustible gases, water vapor, or other obvious serious pollution, and no frequent violent vibration;
- Seismic resistance: 8 degrees;
- When the usage conditions are different or there are special requirements, such as when the product is used in areas with an altitude of 2000M or above, the ordering party should negotiate with the manufacturer about the factory conditions, confirm the altitude correction coefficient, and require relevant factory inspection reports for verification; When the ambient temperature exceeds the applicable range of the product, the user should consider the impact of the rated current carrying capacity of the switchgear and take necessary measures to improve the ambient temperature.
DPSI-C-12/630-25 solid insulated vacuum load switch/DPSI-12C/630-25 solid insulated vacuum load switch cabinet
| No. | Item | Unit | Data |
|---|---|---|---|
| 1 | Rated Voltage | kV | 12 |
| 2 | Rated Frequency | Hz | 50 |
| 3 | Rated Current | A | 630 |
| 4 | Rated Active Load Breaking Current | A | 630 |
| 5 | Rated Closed-Loop Breaking Current of Distribution Line | A | 630 |
| 6 | Rated Cable Charging Breaking Current | A | 40 |
| 7 | Rated Line Charging Breaking Current | A | 1 |
| 8 | Rated Peak Short-Circuit Making Current | kA | 63 |
| 9 | Rated Earth Fault Breaking Current | kA | 31.5 |
| 10 | Cable Charging Breaking Current under Rated Ground Fault Condition | kA | 69.3 |
| 11 | Line Charging Breaking Current under Rated Ground Fault Condition | A | 1.73 |
| 12 | Duration of Rated Short-Time Withstand Current | s | 4 |
| 13 | Rated Short-Time Withstand Current | kA | 25 |
| 14 | Rated Peak Withstand Current | kA | 63 |
| 15 | Rated Short-Time Power Frequency Withstand Voltage (Phase to Phase, Phase to Ground) | kV | 42 |
| 16 | Rated Short-Time Power Frequency Withstand Voltage (Fracture) | kV | 48 |
| 17 | Peak Value of Rated Lightning Impulse Withstand Voltage (Phase to Phase and Ground) | kV | 95 |
| 18 | Rated Lightning Impulse Withstand Voltage Peak (Fracture) | kV | 110 |
| 19 | Partial Discharge Test (1.2 μs) | pC | ≤ 20 |
| 20 | Main Circuit Resistance | μΩ | ≤ 150 |
| 21 | Temperature Rise Test | — | 1.1 × 630A |
| 22 | Mechanical Life (Load Switch M2 / Disconnector M1 / Earthing Switch M1) | — | 1000 cycles (M2), 3000 cycles (M1) |
| 23 | Classification According to Electrical Life | — | E3 |
| 24 | Classification According to Mechanical Life | — | M2 |
| 25 | Rated Voltage of Opening and Closing Coils | V | DC48V / DC110V / DC220V / AC220V |
| 26 | Rated Current of Opening and Closing Coils | A | 1.5–2.6 |
Overall dimension
