【正文】
re release device to be used may be chosen according to following formula:鎖帽Lock nut 保護套 protective cover 導油裝置Oil equipment guide防雨帽Rain shield 排油管Drain line標示桿Indicator閥蓋Valve lid閥罩Valve cover接線盒Junction box螺釘 Screw安裝螺栓Mounting bolt閥座Valve seat放氣閥Air vent valve密封膠墊Sealing gasket蝶閥Butterfly valve螺母Nuts變壓器本體 排油管 Transformer body drain line 圖 一 Picture I (例如 .: YSF1655,70/130KKJT) 注:變壓器運行之前務必請將鎖帽卸下并將保護套帶上?。?!Notes: be sure to remove the lock nut and wear the protective cover before starting the transformer! ! ! (圖示為壓力釋放閥動作后的情形,動作前標示桿應在原位,防雨帽應與閥蓋接觸)(The picture shows what the pressure release valve looks like when running, the indicator should be in situ and the rain shield should be in contact with the valve lid before running.) 開啟壓力的選擇Selection of opening pressure首先計算關閉壓力的大小First calculate closing pressurePG=PJ+PE+PQ PG: 關閉壓力值(kPa)Closing pressurePJ: 壓力釋放閥承受靜壓值(kPa)PJ=H? r kPaStatic pressure stood by pressure release valve PJ=H? r kPaH: 最高油面至壓力釋放閥底面距離m Distance between Max. Oil level land bottom of pressure release valvesr: 10179。1. Application and performance Pressure release valves play a vital role in the protection of oilimmersed electrical equipments, such as transformers, high voltage switch gears, capacitor and on load tapchangers, etc. This device can prevent the oilimmersed electrical equipment from deformation or rupture. Should a fault occur in such electrical equipment, from deformation of rupture? Should a fault occurring in such electrical equipment, they are instantaneously vaporize the oil causing extremely rapid buildup of gaseous pressure? If mounting this type pressure release device on the oiltank, when the pressure reaches to its opening pressure, it opens automatically within 2ms and relieves the pressure.2. 型號、規(guī)格及基本參數(shù) Type, specification and technical parameters 型