GSR6-12/24/40.5 environmentally friendly gas-insulated metal-enclosed switchgear (C-GIS) is independently developed by our company and use dry air (Air) or nitrogen (N2) It is an environmentally friendly gas-insulated metal-enclosed switchgear with insulating medium.
Product Overview
GSR6-12/24/40.5 environmentally friendly gas-insulated metal-enclosed switchgear (C-GIS) is independently developed by our company and uses dry air (Air) Or environmentally friendly gas-insulated metal-enclosed switchgear with nitrogen (N2) as the insulating medium. The product technology level is domestically leading and internationally advanced. It is a new generation of medium-voltage complete switchgear that integrates vacuum arc extinguishing technology, APG sealing technology, gas insulation technology and interface insulation technology. The product has passed the formal test verification and new product technical appraisal by the national authoritative testing agency, obtained Duoxiang national invention patent and utility model patent, and has independent intellectual property rights. Products can be widely used in various important power distribution and transformation systems of the national economy, such as transmission and substation networks, urban power supply networks, large industrial and mining enterprises, petrochemical industry, metallurgy, urban rail transit and other fields.
The product adopts modular design and can be combined according to different design plans. The product adopts a sealed pressure system. All high-voltage live parts of the main circuit are sealed in a stainless steel gas box and are not affected by the environment. It has the characteristics of reliable operation, small space occupation, and maintenance-free.
Technical Parameters
| Item | Unit | Parameter | |||
| Rated voltage | kV | 12 | 24 | 40.5 | |
| Rated frequency | Hz | 50 | 50 | 50 | |
| Rated current | A | 1250/2500/3150/4000 | 1250/2500/3150/4000 | 1250/2500 | |
| Rated insulation level | Power frequency withstand voltage (phase to phase and ground) | kV | 42 | 65 | 95 |
| Power frequency withstand voltage (isolation fracture) | kV | 48 | 79 | 118 | |
| Lightning impulse withstand voltage (phase to phase and ground) | kV | 75 | 125 | 185 | |
| Lightning impulse withstand voltage (isolated fracture) | kV | 85 | 145 | 215 | |
| Rated power frequency withstand voltage of auxiliary circuit | kV | 2 | 2 | 2 | |
| Rated short-time withstand current | kA | 25/31.5/40 | |||
| Rated short circuit duration | s | 3 | 3 | 3 | |
| Rated peak withstand current | kA | 63/80/100 | 63/80/100 | 63/80 | |
| Rated short-circuit breaking current | kA | 25/31.5/40 | 25/31.5/40 | 25/31.5 | |
| Rated short-circuit making current (peak) | kA | 63/80/100 | 63/80/100 | 63/80 | |
| Rated cable charging breaking current | A | 25 | 31.5 | 50 | |
| Rated operating sequence | O-0.3s-CO-3min-CO | ||||
| Insulating gas | Dry air or nitrogen | ||||
| Mechanical life | Circuit breaker | times | 10000 | 10000 | 10000 |
| Three-position switch | 5000 | 5000 | 5000 | ||
| Dry air or nitrogen rated pressure (abs.20℃) | Rated inflation pressure (abs.20℃) | Mpa | 0.14 | 0.14 | 0.14 |
| Minimum inflation pressure (abs.20℃) | 0.12 | 0.12 | 0.12 | ||
| Protection level | Sealed box | Level | IP67 | IP67 | IP67 |
| Switchgear enclosure | IP4X | IP4X | IP4X | ||
| Dry air relative leakage rate | %/year | ≤0.1 | ≤0.1 | ≤0.1 | |
| Rated power supply voltage of auxiliary circuit | V | DC48/110/220 AC220 | |||
Product size
| Rated voltage | Rated current of main bus | Cabinet type | Width (mm) | Depth (mm) | Height (mm) | ||
| 12/24kV | 1250A | Incoming line, segmentation, isolation, outgoing line | 600 | 1500 | 2400 | ||
| Main device (PT) | 1000 | 1500 | 2400 | ||||
| Measuring cabinet | Air box type | 600/1000 | 1500 | 2400 | |||
| Air type | 600/1000 | 1500 | 2400 | ||||
| 2500/3150/4000A | Incoming line, segmentation, isolation, outgoing line, bus equipment (PT) | 1000 | 1850 | 2400 | |||
| 40.5kV | 1250A | Incoming line, segmentation, isolation, outgoing line | 900 | 2200 | 2400 | ||
| Master setting (PT) | 1000 | 2200 | 2400 | ||||
| 2500A | Incoming line, segmentation, isolation, outgoing line, bus equipment (PT) | 1000 | 2200 | 2400 | |||
Features
Adopting internationally advanced concepts, world-class production, testing methods, laser welding, laser cutting, helium leak detection and other equipment.
The primary component of the product adopts a fully sealed design, which is completely sealed in a sealed air box welded by stainless steel plates. It is filled with dry air or nitrogen of a certain pressure as the insulating medium. The protection level reaches IP67, which completely avoids the impact of the external environment and climate on the switch cabinet. It can operate reliably in harsh environments such as basements, plateaus, frozen soil, coastal areas, and humidity, and is maintenance-free.
The product can be operated manually or electrically. The operating mechanism is mature and reliable, and it has complete mechanical and electrical interlocking, which can effectively prevent personal injury and equipment damage that may be caused by misoperation. 3. The product can be operated manually or electrically. The operating mechanism is mature and reliable, and it has complete mechanical and electrical interlocking, which can effectively prevent personal injury and equipment damage that may be caused by misoperation.
The product design has a compact structure. Compared with the traditional air insulated switch cabinet, the volume is significantly reduced, and the floor area is reduced by 30%-70%, which improves space utilization and effectively reduces the comprehensive cost of the project.
Microprocessor-based protection and system technology integrates protection, control, measurement, detection, and communication functions to achieve distribution network automation and digitalization requirements, and can be completely unattended.
Product usage environment
Altitude: ≤5000m (when the equipment operating altitude exceeds 1000m, special instructions are required)
Ambient temperature: maximum temperature +50℃, minimum temperature -25℃, 24h average value ≤35℃
Ambient humidity : 24h average relative humidity ≤95% , the average monthly relative humidity is ≤90%
Electromagnetic interference: The amplitude of electromagnetic interference induced in the secondary system is ≤1.6kV
Installation environment : There are no explosive and corrosive gases in the surrounding air, and there is no frequent severe vibration or impact in the installation site.
Note: Use beyond the above Environmental conditions, please contact us
