Exquisite Technology Makes Higher Quality
Tongwei Electric professional manufacturer of aluminum and steel shellmatched with GIS high voltage switch.
GIS High Voltage Switch Shell
GIS High Voltage Switch Shell
GIS High Voltage Switch Shell
Tongwei Electric Haian Co., Ltd., a subsidiary of Tongwei group, is located in the high- -tech zone of Haian County,Nantong, Jiangsu province. It is located next to the Qiyang highway, G204 and G328 national road. With 50 thousand tons sea terminal, airport and railway hub around the city.
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On October 17, 2018, Tongwei Electric Haian Co., Ltd. organized a new fixed X-ray flaw detection room project for Tongwei Electric Haian Co., Ltd. (formerly Tongwei Electric Haian Co., Ltd.) (period acceptance content is a new fixed X-ray flaw detection room, equipped with a real-time X-ray imaging detection device (model XYG-22508/3, Tube voltage 225 kV, tube current 8 mA) and one X-ray flaw detector (model XXH-1605, tube voltage 160 kV, tube current 5 mA). The materials of the Environmental Acceptance Meeting for the completion of the project are now published for the period from November 19, 2018 to 14, 2018 (20 working days).
Selection Principles of Welding Equipment
The selection of welding equipment is an important content in the formulation of welding technology, which involves many factors, but the following factors should be paid attention to. 1. Technical requirements for welded structures The technical requirements of the welded structure include material characteristics, structural characteristics, dimensions, accuracy requirements and service conditions of the welded structure. If the welding structure material is ordinary low carbon steel, the arc welding transformer can be used; if the welding structure requirements are high and low hydrogen electrode welding is required, the DC arc welding machine should be selected. If it is heavy welding, you can use electroslag welding machine; if it is bar butt welding, you can choose cold press welding machine and resistance butt welding machine. For active metals or alloys, heat-resistant alloys and corrosion-resistant alloys, inert gas shielded welding machine, plasma arc welding machine and electron beam welding machine can be selected according to specific conditions. Special welding machines can be used for welding structures with fixed structure and size in large quantities. 2. actual usage Different welding equipments can weld the same welding piece, so we should choose the more suitable welding equipment according to the actual use. If there is no overflow power source and gas source in field welding, arc welding generators such as diesel (steam) oil DC arc welding generators can only be selected as welding equipment. For precise weldments that are not allowed to be reprocessed or heat treated after welding, an electron beam welding machine with concentrated energy, no filler metal, less heat affected zone and high precision should be selected. 3. economic benefits When welding, the energy consumption of welding equipment is considerable. When choosing welding equipment, the welding equipment with less power consumption and high power factor should be selected as far as possible on the premise of meeting the technological requirements. Tongwei Electric Haian Co., Ltd. is an enterprise specialized in welding automation complete sets of equipment, which integrates R&D, design, manufacture and sales. Our company has rich practical experience in various welding machines. We have designed and manufactured a number of high-quality and practical welding machines for various industries (power pipeline, medical pipeline, construction machinery, high-voltage switch, bellows welding, etc.).
Selection of Wide Aluminum Plate Material for GIS High Voltage Switch Shell
GIS is the switching station that we can often see, also called high-voltage distribution device. The raw material of GIS high voltage switch is super wide alloy aluminium plate. Aluminum plates for high voltage switch in GIS are generally 5052 and 5083 alloy plates, while 1060, 3003 and 5754 aluminum plates are relatively few. High voltage power is an unavoidable environment in industrial production. Ensuring the safety of power consumption in the production environment is the basic condition for the good operation of enterprises and an important measure to ensure the safety of workers'lives and property. Therefore, high voltage switch is very important in the production environment. Ultra-wide aluminum plate is widely used in the field of high voltage switch production because of its excellent characteristics. Pan.
Factors to be Considered in Selecting GIS Shell Material
(1) The steel with higher mechanical strength (e.g. boiler steel) should be selected as far as possible for GIS shell under operating impact; (2) the eddy current loss of bus barrel with three-phase common box is smaller than that of single-phase bus barrel; (3) the welding performance of steel shell is better than that of aluminum shell; (4) the air tightness of cast aluminum shell is more difficult to control; (5) the design and fabrication of aluminum shell Generally, the cost is about 20% higher than that of the same function steel (or tailor welded stainless steel) shell. The dynamic sealing surface can be divided into rotating sealing surface and sliding sealing surface according to the action property. The rotating sealing surface is located on the transmission arm of the disconnector and the grounding knife gate. The rotating range of the sealing gasket on this kind of sealing surface is about 76 degrees. Three O-type sealing gaskets are used to strengthen the sealing. Seen from the situation of leakage detection in site installation, its sealing effect is satisfactory, but with the passage of time, the increase of operation times and the aging of rubber, the sealing condition of this kind of sealing surface needs to be noticed, especially the gasket on the disconnector or grounding knife gate with more operation times. The sliding sealing surface is located on the operating pull rod of the circuit breaker. Its sealing gasket section is "V" type, and the sealing surface is metal rod surface. It has four smooth "V" type sealing rings. The sealing is quite reliable and is not easy to leak. There are many problems found when static sealing surface is installed and leaked on site. There are two main reasons for leakage of static sealing surface: defect of sealing gasket itself and bad combination of sealing surface.