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4M~3电铲原采用的DN_3-10I型油断路器,在使用中由于结构复杂而调整麻烦,动、静触头拆、装困难,修复工时长,而且配套的手动操作机构的联锁装置不可靠,直接影响生产。现在,我们用湘潭雨湖电器厂生产的CG_4型(6KV、75A)高压油浸接触器取代了原DN_3-10I型油断路器,解决了上述问题,满足了生产要求。CG_4高压油浸接触器的特点是结构简单,外形正规(矩形),按纽操作,拆、装、换油方便,触头修理、制作容易。经使用证明运行
The DN_3-10I type oil circuit breaker originally used in the 4M~3 electric shovel has trouble adjusting the structure due to its complex structure in use, and it is difficult to disassemble and install the movable and static contacts. The repair time is long, and the interlocking device of the manual operation mechanism is matched. Unreliable, directly affecting production. Now, we replaced the original DN_3-10I type oil circuit breaker with CG_4 type (6KV, 75A) high-pressure oil-immersed contactor produced by Xiangtan Yuhu Electric Appliance Factory, which solved the above problems and satisfied the production requirements. CG_4 high-pressure oil immersion contactor is characterized by simple structure, regular appearance (rectangular), button operation, removal, installation, oil change, contact repair, easy to make. Proved to run