The 32nd China International Exhibition on Electric Power Equipment and Technology
Shanghai International Energy Storage Technology Application Expo / Hydrogen Energy Expo
Shanghai New International Expo Center (Hall N1-N5 & W5), PR China 2025•11• 18 - 20

七星电气股份有限公司
Booth Number: Hall N2 - N2E31
Add EP Wechat for consultation
Share this page
Exhibitor E-invitation
Invitation / Product Poster
1250A Environmental Gas-Insulated Switchgear
1. Suitable for environmentally friendly gas-insulated ring main units with a rated voltage of 12 kV and a rated current of 1250 A; 2. Random sampling inspections meet State Grid requirements for temperature rise tests at 1.1 times the rated value, partial discharge tests, and other relevant tests; 3. Modular design ensures a compact structure, flexible operation, reliable interlocking, and convenient installation; 4. The gas compartment is filled with dry air, achieving "zero emissions" of greenhouse gases.
1250A SF6-insulated switchgear cabinet
1. Suitable for SF6 gas-insulated ring main units with a rated voltage of 12 kV and a rated current of 1250 A; 2. Random sampling of the product meets State Grid requirements for temperature rise tests at 1.1 times the rated value, partial discharge tests, and other relevant tests; 3. The circuit breaker mechanism has a mechanical endurance of ≥10,000 operations; 4. Modular design, compact structure, flexible operation, reliable interlocking, and easy installation.
Water-immersible ring main unit
1. Suitable for ring main units with a rated voltage of 12 kV (both environmentally friendly gas-insulated and SF6‑insulated), with the gas compartment, mechanism enclosure, and instrument cabinet all meeting an IP67 protection rating. 2. The operating mechanism of this cabinet type is routed via aviation connectors, resulting in a compact overall structure, small footprint, and convenient wiring. 3. Featuring a highly protective, fully sealed design and equipped with waterproof electrical components, it employs aviation connectors and waterproof joints for signal and power connections, thereby preventing mechanism corrosion or secondary circuit shorting that could impair normal opening and closing operations. 4. The submersible ring main unit can continue to operate reliably for an extended period even when fully submerged, ensuring uninterrupted power supply.
思源黑体预加载(勿删): 七星电气股份有限公司