SF6 Fully Sealed Ring Main Unit
HXGNP-12
A domestic first-of-its-kind product with IP67 protection for the entire unit, suitable for use in damp, harsh conditions and areas at risk of flooding, such as basements.
Product Description
A domestic first-of-its-kind product, the entire unit (including the secondary instrument compartment) achieves IP67 protection, completely resolving issues such as condensation and mechanism corrosion. It can operate temporarily in submerged environments, making it suitable for use in damp, harsh conditions and areas at risk of flooding, such as basements. It supports manual and electric operation, is equipped with automated protection functions, and features reliable interlocking in compliance with domestic safety operation regulations.
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Product Advantages
High Protection Capability
Capable of short-term submerged operation with IP67 protection.

High Reliability and Maintenance-Free
Completely resolves mechanism corrosion caused by humidity and condensation, with five-prevention hard interlocking and full functionality.

Comprehensive Operational Requirements
Manual, electric, remote, and local operation functions.

Complete Series
C/V/D/PT, common-box type, unit-expandable, standardized dimensions.

Comprehensive Design Solutions
Installation dimensions fully comply with State Grid / China Southern Grid specifications.

High Adaptability
Product supports common-box and top expansion configurations.

Primary and Secondary Integration
Compatible with standardized distributed DTU.

SF6 Fully Sealed Ring Main Unit
HXGNP-12
Technical Specifications
| Rated Voltage | 12kV |
| Arc Extinguishing Chamber Type | Vacuum |
| Rated Frequency | 50Hz |
| Rated Current | 630A |
| Rated Short-Time Withstand Current & Duration | 20kA/4s |
| Rated Peak Withstand Current | 50kA |
| Arcing Duration | ≥0.5s |
| Protection Rating | Gas Tank: IP67 |
| Secondary Compartment: IP67 | |
| Rated Gas Pressure (20°C Gauge) | 0.04MPa |
| Annual Gas Leakage Rate | 0.05% V/V |
