股票代码：603829
Meeting Chinese standards GB/T3906, GB/T11022, DL/T593 and DL/T404, etc. and international standards IEC62271-100 and IEC62271-200;
With SF6 gas insulation plus vacuum breaking solution, the advantageous combination brings high comprehensive performance;
The primary circuit is gas-sealed, and the high-pressure components are not affected by altitude, are completely maintenance-free, and are highly adaptable to the environment;
With small cabinet dimensions, the compact switchgear has low layout space requirements;
The product can be applied to power grids, industrial and mining enterprises, rail transportation, commercial buildings and other usage scenarios.
With modular gas tank structure, a corresponding switch configuration scheme can be selected according to function needs so as to ensure reliable and economic product;
The modular spring operating mechanism is adopted for the circuit breaker, and the main circuit is of solid-sealed pole structure, achieving a high degree of integration with a small number of components;
With double operation holes, the three-position switch has manual and electric operation modes;
The mechanical & electrical interlock is well-designed to effectively prevent misoperation and ensure the safety of operation and maintenance;
The bus connector is used between switchgear cabinets to achieve easy installation and flexible expansion, and no gas system processing is involved;
First-class manufacturing technology: Laser welding, CNC equipment, large stamping and helium leakage detection;
The high-quality production processes are strictly implemented to ensure safe and reliable operation of the switchgear.
| No. | Item Name | Technical Requirement | Unit |
| 1 | Rated voltage | 40.5 | kV |
| 2 | Power frequency withstanding voltage (phase-to-phase & phase-to-earth/fracture) | 95/118 | kV |
| 3 | Lightning impulse withstanding voltage | 185/215 | kV |
| 4 | Partial discharge test (whole cabinet/components) | ≤20/3 | pC |
| 5 | Rated frequency | 50 | Hz |
| 6 | Rated current of main bus | 1250/2500 | A |
| 7 | Rated current of branch bus | 1250/2500 | A |
| 8 | Rated short-circuit breaking current | 31.5 | kA |
| 9 | Rated short-circuit making current (peak) | 80 | kA |
| 10 | Rated short-time withstanding current/duration | 31.5/4 | kA/s |
| 11 | Rated peak withstanding current | 80 | kA |
| 12 | Single/back-to-back capacitor bank switching current | 630/400 | A |
| 13 | Grounding switch short-circuit making capacity | 5 | Times |
| 14 | Rated operation sequence | 0-0.3s-CO-3min-CO | |
| 15 | Rated filling pressure (abs, 20°C) | 0.13 | MPa |
| 16 | Alarm pressure (abs, 20°C) | 0.11 | MPa |
| 17 | Min. functional pressure (abs, 20°C) | 0.10 | MPa |
| 18 | Annual gas leakage rate | <0.05 | %/Y |
| 19 | Ingress protection rating (gas tank/whole cabinet) | IP67/IP4X | |
| 20 | Temperature rise performance | 1.1 times | A |
| 21 | Electrical life | E2 | Times |
| 22 | Mechanical life of circuit breaker | M2 | Times |
| 23 | Mechanical life of isolation/grounding switch | 3000 | Times |
| 24 | Internal arcing performance (switch bus compartment and cable compartment) | 31.5/0.5 | kA/s |
| 25 | Overall dimensions of cabinet | 600(800)X1800x2300 | |
