3.3-36 kV
Air Insulated RMU
Product parameters:
- Air insulation ring main unit
- Indoor medium voltage distribution switchgear
- Rated voltage: 3.3kV, 6kV, 10kV, 11kV, 12.5kV, 13.8kV, 17kV, 22kV, 24kV
- Current up to: 1250A
- Floor standing
- Standard: IEC, ANSI, GB
- UN-XGN15
General
This medium voltage switchgear is used in 3.3kV, 6kV, 10kV, 11kV, 12.5kV and13.8kV power system, as control distribution unit.
It can be floor standing or wall mounted. by using withdrawable ACB up to 4000A. by use SF6 LBS, combind cabinets as RMU.
Compact structure with degree of protection cabinets, up to IP 4X.
High quality aluminium zinc-coated sheet, make cabinet strong and lighter.
Standard
All UNISUN transformers are in conformity with IEC standards, Transformers in conformity with specific country standards can also be supplied. (IEEE, GB)
Technical date
Rated voltage (kV) | 7.2 | 12 | 17.5 | 24 | |
Insulation level |
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50 Hz, 1 mn (kV rms) | Insulation | 20 | 28 | 38 | 50 |
Isolation | 23 | 32 | 45 | 60 | |
1.2/50μs (kV peak) | Insulation | 60 | 75* | 95 | 125 |
Isolation | 70 | 85 | 110 | 145 |
Breaking capacity
Transformer off load (A) | 16 | |
Cables off load (A) | 31.5 | |
Short-time withstand current (kA.1 s) | 25 | 630 – 1250 A |
20 | 630 – 1250 A | |
16 | 630 – 1250 A | |
12.5 | 400 – 630 – 1250 A |
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Our Production
The products are designed in strict accordance with IEC or ANSI standards, and the manufacturing steps meet the technological requirements
Wiring design
Standardized circuit design, high purity copper bar is used for primary circuit, and the design meets the current requirements of the project. Standard copper wire is available for the secondary circuit, and the circuit design is optimized according to the requirements of the project.
Production testing
Comprehensive production inspection, in accordance with the premise of electrical performance, to ensure that each electrical component can working efficiently.