DYXGN15-12(SF6)Sulfur Hexafluoride Series Ring Main Unit
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- Product Overview
- The XGN□-12 type AC high-voltage SF6 ring main unit (hereinafter referred to as the RMU) is widely used in industrial and mining enterprises, high-rise buildings, residential districts, schools, and other places for ring network power supply and terminal power distribution in 10KV power distribution systems. Equipped with an SF6 load switch or a combined electrical device of SF6 load switch and fuse, the RMU can close and open rated load current, close rated short-circuit current, and open no-load current of transformers. When the combined electrical device is equipped with a fuse, it can interrupt a 31.5kA short-circuit current in one operation, playing a role in control and protection in the power system.
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Normal Operating Conditions:
1、Altitude: Not exceeding 2500m
2、Ambient temperature: +40℃～-35℃
3、Relative humidity: Daily average not exceeding 95%, monthly average not exceeding 90%
4、Ambient air shall be free from obvious pollution by corrosive gases, flammable gases, water vapor, etc.
5、No frequent severe vibrations
If the operating conditions differ or additional requirements are needed, consultation with the manufacturer is required.Technical Parameters
Parameter Specification Rated voltage [kV] 12 Rated lightning impulse withstand voltage - Between poles and pole-to-ground [kV]: 75
- Between breaks [kV]: 851-minute power frequency withstand voltage - Between poles and pole-to-ground [kV]: 42
- Between breaks [kV]: 48Rated frequency [Hz] 50 Rated current - Main busbar [A]: 1250
- Branch busbar [A]: 630Rated short-time withstand current - Main circuit [kA]: 25
- Grounding circuit [kA]: 25Rated short-circuit duration [s] 2 Rated peak withstand current [kA] 63 Transfer current [A] 1500 Protection class IP3X Mechanical life of load switch [operations] 5000 Mechanical life of earthing switch [operations] 1000 Load switch cabinet - Width [mm]: 375, 500, 750
- Depth [mm]: 1000
- Height [mm]: 1400, 1600, 1850Low-voltage compartment - Height [mm]: 450 Circuit breaker cabinet - Width [mm]: 750
- Depth [mm]: 1000
- Height [mm]: 2150 Similar Products
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