1) main transformer backup protection
主变后备保护
1.
This paper expounds the requirements of some relevant regulations to main transformer backup protection,the real situations and features of our company’s facilities and the possible consequences.
通过阐述相关规程对主变后备保护配置要求和某公司主变后备保护的实际配置情况以及现有后备保护装置的特点,分析了会给黄化电网带来的严重危害,并提出相应的整改措施。
2) backup overcurrent protection for main transformer
主变后备过流保护
1.
This paper deals with the trip of backup overcurrent protection for main transformer in the Jizhou substation caused by the fault on the 10 kV outgoing line,analyzes the performance of relays and presents the reason of main transformer protection s trip.
针对鸡洲110kV变电站由于10kV出线故障,引起主变后备过流保护动作跳闸,对保护动作情况进行分析,指出导致主变保护动作的原因。
3) transformer backup protection
变压器后备保护
1.
Voltage loss closedown function in 220 kV side distance protection is imperfect,which is in the ABB 500 kV main transformer backup protection equipment REL511(V1.
ABB公司生产的500 kV变压器后备保护装置REL511(1。
4) back up protection
后备保护
1.
Being not only the back up protection of the transformer itself but also the back up protection of the adjacent elements,the Interphase back up protection plays a role that can t replace by the other protections.
变压器相间后备保护不仅是其本身的后备保护,还作为相邻元件的后备保护,起着其他保护不可替代的作用。
5) back-up protection
后备保护
1.
Configuration and setting research on back-up protection of turbine generator with self-shunt excitation;
自并励汽轮发电机相间短路后备保护配置与整定的探讨
2.
Study of back-up protection configuration schemes in power market environment;
市场环境下后备保护配置方法的选择
3.
Discussion on coordination of 220 kV substation main transformer back-up protection and the protection of 10 kV side
220kV变电站主变后备保护与10kV侧出线保护配合问题的探讨
6) reserve protection
后备保护
1.
It is important to optimize the reserve protection of 220 kV and over power system.
220kV及以上系统后备保护的优化配合势在必行。
补充资料：主动脉瓣退行性变
主动脉瓣退行性变
retrograde affection of aortic valve
主动脉瓣叶呈黏液样改变，组织菲薄和半透明状，不能耐受主动脉内舒张期压力而产生关闭不全。常见于梅毒性主动脉炎、马方综合征、主动脉中层坏死、老年性退行性改变和其他原因引起的升主动脉瘤中。临床表现同主动脉瓣关闭不全。应行主动脉瓣替换术。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条