A refrigerant mixture TJR02 was developed and the comparison experiment was performed on a singlestage vapor compression refrigeration system originally designed for R22.Experimental results show that TJR02 can be dir...A refrigerant mixture TJR02 was developed and the comparison experiment was performed on a singlestage vapor compression refrigeration system originally designed for R22.Experimental results show that TJR02 can be directly used in the system without modifying the original system or changing lubricant.By replacing R22 with TJR02,cooling rate gets faster and at least 20% of energy is saved.The actual detection in the standard test-bed verifies the experimental results and indicates that the adoption of TJR02 leads to greater efficiency and wider application.And the lower the refrigeratory temperature is,the more obvious the energy saving effects will be.展开更多
PCS-915AB与RCS-915AB型母差及失灵保护装置分别是南京南瑞继保电气有限公司的新老两代产品,其主变变高侧开关失灵判别功能存在差异,对应的失灵启动回路的设计也需有所变化。为此,结合旧式的RCS-915AB型母差兼失灵保护装置及新型的PCS-9...PCS-915AB与RCS-915AB型母差及失灵保护装置分别是南京南瑞继保电气有限公司的新老两代产品,其主变变高侧开关失灵判别功能存在差异,对应的失灵启动回路的设计也需有所变化。为此,结合旧式的RCS-915AB型母差兼失灵保护装置及新型的PCS-915AB型母差兼失灵保护装置的原理,探讨了220 k V主变变高侧失灵启动回路的设计方法。展开更多
基金Supported by the Key Technology R&D Program of Tianjin,China(No.11ZCKFGX21100)Tianjin New Coastal District "Ten Campaign" Major Science and Technology Project(No.2010-BK140009 and 2010-BK140002)+1 种基金National Basic Research Program of China("973" Program,No.2009CB219900)the Program for Changjiang Scholars and Innovative Research Team in University(No.IRT0936)
文摘A refrigerant mixture TJR02 was developed and the comparison experiment was performed on a singlestage vapor compression refrigeration system originally designed for R22.Experimental results show that TJR02 can be directly used in the system without modifying the original system or changing lubricant.By replacing R22 with TJR02,cooling rate gets faster and at least 20% of energy is saved.The actual detection in the standard test-bed verifies the experimental results and indicates that the adoption of TJR02 leads to greater efficiency and wider application.And the lower the refrigeratory temperature is,the more obvious the energy saving effects will be.
文摘PCS-915AB与RCS-915AB型母差及失灵保护装置分别是南京南瑞继保电气有限公司的新老两代产品,其主变变高侧开关失灵判别功能存在差异,对应的失灵启动回路的设计也需有所变化。为此,结合旧式的RCS-915AB型母差兼失灵保护装置及新型的PCS-915AB型母差兼失灵保护装置的原理,探讨了220 k V主变变高侧失灵启动回路的设计方法。
