发现及处理中压电容柜储能端子发热过程  

Detect and Deal with the Heating Process of the Storage Terminal of the Medium Voltage Capacitor Cabinet

作　　者：郭长青 Guo Chang-qing

机构地区：[1]中海石油化学股份有限公司,海南东方572600

出　　处：《化工设计通讯》2017年第9期244-244,共1页Chemical Engineering Design Communications

摘　　要：我厂一期总变是在2007年进行了改造,中压柜断路器采用了西门子3AH3真空断路器,3AH3断路器是1999年开发的新产品,具有极高的耐电弧能力和极小的弧压降。因此,在保证开断额定短路电流的前提下,灭弧室的体积可以具有较小的尺寸。这种断路器还具有截流值小的特点,因此,断路器在分合一些感性负载及电容器组时不会出现操作过电压和重燃过电压。断路器的储能机构可通过电动来实现,包括合闸线圈以替代手动操作机构,在通电及合闸弹簧储能量释放状态下,电动机自动启动储能并在储能结束后切断电源,消耗功率约为275W,在弹簧储能的部分时间中,电动机处于过负荷状态。I plant a total change is reformed in 2007,medium voltage switchgear interrupter using SIEMENS 3AH3 vacuum circuit breaker,3AH3 circuit breaker is a new product developed in 1999,has a high resistance to arc arc voltage drop and small capacity.Therefore,under the premise of ensuring the rated short-circuit current,the size of the arc extinguishing chamber can be of smaller size.The circuit breaker also has the characteristics of small cut-off value,so the circuit breaker does not appear to operate over voltage and over fire over-voltage when it is divided into some inductive load and capacitor bank.The circuit breaker energy storage mechanism can be realized by electric,including closing coil to replace the manual operation mechanism,the electricity and the closing spring energy storage release condition,the motor start automatically storage and in storage after cut off the power supply,the power consumption is about 275 W,the motor is in overload state in part time spring in.

关 键 词：中压电容柜 发热 退针 

分 类 号：TM774[电气工程—电力系统及自动化]