YSR6-12/24/70.5 SF6 Gas Insulated Metal Enclosed Switchgear
Our Catalogue
YSR6-12/24/40.5 series of SF6 Gas insulated Metal Enclosed switchgear (C-Gis) is independently developed by our company with sulfur hexafluoride gas as the insulating medium and can be applied in primary or secondary power distribution at a same time. It is a new-generation medium-voltage whole-set switchgear with vacuum arc extinguishing technology, APG solid sealed technology, gas insulation technology and interface insulation technology. The product has passed the type test verification and new product technology appraisal by China's national authoritative testing institution.
| Item | Unit | Parameter |
| Rated voltage | kV | 12 24 40.5 |
| Rated frequency | Hz | 50 |
| Rated current | A | 630/1250/2500/3150/4000/630/1250/2500 |
| Power frequency withstand voltage (phase-to-phase and phase-to-ground) | kV | 42 65 95 |
| Power frequency withstand voltage (insulation breaking) | kV | 48 79 118 |
| Lightning impulse withstand voltage (phase-to-phase and phase-to-ground) | kV | 75 125 185 |
| Lightning impulse withstand voltage (insulation breaking) | kV | 85 145 215 |
| Rated power frequency withstand voltage of auxiliary circuit | kV | 2 |
| Rated instantaneous withstand current | kA | 25/31.5/40 |
| Rated short-circuit period | s | 3 |
| Rated peak withstand current | kA | 63/80/100 63/80/100 50/63/80 |
| Rated short-circuit breaking current of circuit breaker | kA | 25/31.5/40 25/31.5/40 25/31.5 |
| Rated short-circuit closing current of circuit breaker (peak) | kA | 63/80/100 63/80/100 50/63/80 |
| Rated cable charge breaking current | A | 25 |
| Rated operating sequence | O-0.3s-CO-3min-CO | |
| Insulation gas | SF6 | |
| Mechanical life | Time | 10000 |
| Three-position switch | Time | 5000 |
| Rated charge pressure (abs, 20°C) | Mpa | 0.14 |
| Minimum charge pressure (abs, 20°C) | Mpa | 0.12 |
| Sealed enclosure | Grade | IP67 |
| Switch shell | Grade | UP4X |
| Annual relative leak rate of dry air | %/year | ≤0.1 |
| Rated power voltage of auxiliary circuit | V | DC48/110/220 AC220 |
- Based on intemational advanced concepts, with world-class production,testing methods,laser welding, laser cutting and helium
leak detection equipment;
- The primary components of the product are fully sealed in stainless-steel-plate-welded sealed gas tank, filled with SF6 gas at acertain pressure as the insulating medium, and its protection grade is lP67 to prevent any influence from external enyironmentsand climate to the switchgear cabinet; it can run reliably in basement, plateau, tundra, coastal, humid and other harshenvironments without maintenance.
- The product can be actuated manually or electrically, and the actuator is mature and reliable with complete mechanical andelectrical interlocks to effectively prevent personal injury and equipment damage due to any error in operation.
- The product is compact, compared with traditional air-insulated switchgear, it is significantly smaller and the floor area occupiedis less by 30%-70% to improve space utilization efficiency and effectively reduce comprehensive engineering cost.
- The protection and system technology based on microprocessor combines protection, control, metering, detection andcommunication functions to make the power distribution network automatic and digital without personnel on duty.
Product structure
The product has a modular assembly structure and is composed of independent functional modules (compartments), i.e., thecabinet bottom unit, combined chargeable unit, comprehensive protection and control unit, actuator room and pressure reliefchannel, etc, It's flexible and efficient to assemble and maintain the whole product.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.