252kV pataforma na ƙarfin kwalba da barin daɗiƙa

Bar insulation na torsion ta 252kV platform engineering yana cikin muhimmiyar kompoonenti a 252kV gas insulated metal enclosed switchgear (GIS), ya fi shi a fage karkashin isolating switch da mechanism da aka amfani. Wannan zai taimaka a gaba da torque da insulation. Haka ne bayanai game da shi:
Abubuwa masu nuna: A cikin 252kV vertical isolation switch, karamin bar insulation na torsion yana fitowa a bearing, kuma karamin mafi yawan yana haɗa da gear na transmission. Gear na transmission yana mesh da rack na transmission, kuma moving contact yana fitowa a rack na transmission. Bar insulation na torsion, box na transmission, da crank arm na transmission shaft suna fitowa a haguji daya. Tun daga ƙarfi crank arm na transmission shaft, za su iya kawo box na transmission da bar insulation na torsion suka ƙwace, don haka zuwa samun ƙarin da moving contact ke yi a fage karfin opening da closing operation na isolation switch.
Zabuƙar abincin: Ana amfani da composite materials based on fiber reinforced epoxy resin. Don inganta wettability da interface compatibility bayan fibers da epoxy resin, da kuma kula ƙananan defects kamar gaps, reinforcing material yana iya zama mixed woven fabric of aramid fibers and polyester fibers, with epoxy resin as the matrix material, aramid fiber bundles used in the warp direction, and polyester fiber bundles used in the weft direction, mixed and woven into a two-dimensional fiber cloth.
Muhimmancin abin da za su iya ba da shi:
Electrical performance: Yana buƙatar da electrical insulation performance mai kyau don yanke da electric field effects na tsawon lokaci a voltage level of 252kV. Axial and radial electrical insulation strength of aramid insulated pull rods used in 252kV GIS reached 15.1kV/mm and 16.5kV/mm, respectively, with a dielectric loss of 0.005%. Ba a samu flashover ko discharge breakdown ba a ƙarfe 15 cycles of power frequency withstand voltage of 460kV/5min and lightning impulse of ± 1050kV (1.2/50 µ s), and the partial discharge at 175kV voltage was 0.08pc.
Mechanical performance: Saboda mechanical stress generated by the operation of GIS isolation switches, bar insulation na torsion yana buƙatar da high mechanical strength and good fatigue resistance. Misali, compression strength, bending strength, and shear strength of aramid insulated pull rods used in 252kV GIS are 182MPa, 267MPa, and 29MPa, respectively, and the failure tensile force can reach 176kN, which can meet the requirements of engineering use.
Manufacturing process: Generally, ana amfani da vacuum pressure impregnation molding process don wind the aramid/polyester fiber mixed woven fabric into a mold. Under the action of vacuum pressure, the woven fabric is impregnated with an epoxy resin system, and after high-temperature curing, an insulating torsion bar is produced. This process can make the internal structure of the tension bar dense, and the interface bonding between the resin and the fiber fabric is good and fully impregnated.

Note: Customization with drawings is available