NSRM-15 SF6 gas-insulated ring main unit

1. Extremely compact: The optimized internal electric field design enables the equipment to achieve extremely compact size at a voltage level of 15KV, effectively saving valuable installation space.

2. Excellent insulation: High performance SF6 gas insulation is used, with insulation strength 2-3 times that of air, ensuring stable and reliable operation at 15KV voltage.

3. Flexible modules: Provides various module structures such as unit type and common box type, which can be expanded and flexibly combined left and right according to actual needs, adapting to different wiring schemes.

4. Maintenance free design: A stainless steel welded gas box with excellent airtightness, with a protection level of up to IP67, can resist dust, moisture, and chemical corrosion, achieving true maintenance free.

5. Safe and reliable: A complete “five prevention” mechanical interlocking device to prevent misoperation; At the same time, it has a safe pressure relief channel to ensure the safety of operators.

The technical parameters of NSRM-15KV SF6 products fully meet the strict requirements of 15KV medium voltage distribution systems, with a rated voltage of 15KV, a power frequency withstand voltage of not less than 48KV, and a lightning impulse withstand voltage of up to 95KV, ensuring insulation safety under various voltage fluctuations. The rated current is available in two specifications: 630A and 1250A, with a short-term withstand current of up to 20kA to 25kA, and strong resistance to short-circuit impact. Its SF6 gas annual leakage rate is less than 0.25 ‰, and with IP67 level gas box and cabinet protection, it requires almost no maintenance. The entire device is designed to have a lifespan of over 30 years, making it an ideal choice for users pursuing long-term stable operation and low lifecycle costs.