Metal Enclosed High Voltage Switchgear
XGN1-40.5 series SF6 gas insulated metal enclosed high voltage switchgear
1.Overview of XGN1-40.5 series SF6 gas insulated metal enclosed high voltage switchgear
XGN1 series gas-insulated metal-enclosed high-voltage switchgear is divided into two specifications, XGN1-40.5/1250-31.5 and XGN1-40.5/2500-31.5. Xi'an Herong Switchgear Co., Ltd. digests advanced technology at home and abroad, combines power standards and independently A new generation of switchgear developed by the company.
This product integrates a complete set of devices such as a special circuit breaker for inflatable cabinets, a three-station isolation grounding switch and an operating mechanism driven by a stepping motor, which are designed and developed by Xi'an Herong Switch Co., Ltd., to provide a complete set of power equipment for our power equipment. Self-designed, self-produced, modular and integrated core product and sophisticated product of gas-insulated metal-enclosed high-voltage switchgear.
The air box plate is made of high-quality stainless steel plate, which is processed by laser precision cutting. The entire air box adopts advanced laser welding technology to clarify the requirements of good air tightness, high strength and small deformation of the product as a whole. High-voltage primary components are installed in a sealed box, and the main circuit insulation is not affected by environmental conditions. The high reliability of the components in the air chamber improves the safety and reliability of the overall product and reduces the maintenance workload.
This product is widely used in power supply, urban rail transit, metallurgy, chemical industry, petroleum, shipbuilding, offshore petroleum, buildings, power generation, nuclear power and other fields and high altitude, environmental pollution, humidity and other occasions.
2.Main features of XGN1-40.5 series SF6 gas insulated metal enclosed high voltage switchgear
- All primary components are fully sealed in the stainless steel box, free from the influence of weather and external environment. Suitable for harsh environments (locations with a lot of dust, humidity, and pests), with a long overhaul period, with little or no maintenance
- The vacuum interrupter is installed horizontally in the circuit breaker room
- The three-position isolating switch in the busbar room has three positions: current off state (opening), current on state (closed), grounding state (grounding)
- All operating mechanisms are installed outside the gas room for easy maintenance and wiring
- The mechanical interlocking meets the domestic five-proof standard of switchgear, ensuring the safety of operation
- Independent double air box structure based on the premise of realizing product economy and safety
- Direct-acting isolation grounding switch, installation and operation are more smooth and precise, and the temperature rise is easier to ensure
3.Technical Data of XGN1-40.5 series SF6 gas insulated metal enclosed high voltage switchgear
| Item | Unit | Numerical value | ||||
| 1250A | 2500A | |||||
| Rated voltage | kV | 40.5 | ||||
| Rated power frequency withstand voltage | Phase to earth, phase to phase and switch fracture | kV | 95 | |||
| Isolation fracture | kV | 118 | ||||
| Rated lightning impulse voltage | Phase to earth, phase to phase and switch fracture | kV | 185 | |||
| Isolation fracture | kV | 225 | ||||
| Rated frequency | Hz | 50 | ||||
| Rated breaking current of circuit breaker | kA | 31.5 | ||||
| Rated short-time withstand current 4s | kA | 31.5 | ||||
| Rated short-circuit making current | 80 | |||||
| Rated current | A | 1250 | 2500 | |||
| Rated inflation pressure | Mpa | 0.04 | ||||
| Insulating gas | SF6 | |||||
| Protection level | High pressure chamber | IP65 | ||||
| Low pressure chamber | IP4X | |||||
| Annual leakage rate | ≤ | 0.1% | ||||
| Ambient temperature | Highest value | ℃ | +40 | |||
| Lowest value | ℃ | -25 | ||||
| Overall dimensions of switch cabinet | width | mm | 600 | 800 | ||
| height | mm | 2400 | 2600 | |||
| Depth | mm | 1600 | 1800 | |||
4.Ordering instructions of XGN1-40.5 series SF6 gas insulated metal enclosed high voltage switchgear
The following information should be provided when ordering
- Main wiring plan number and single-line system diagram, arrangement diagram and its floor plan
- Quadratic schematic
- The switch cabinet should be put forward when ordering under special environmental conditions
If there are other special options, please specify when ordering
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