构建有竞争力的公司-武汉
武汉MOBIS 变速器经过短短4年多的发展生产了优秀的产品，因而在中国轿车零部件领域有着首屈一指的地位。
取得这种成果的理由是不仅拥有固有的先进技术而且也是因为重视人才的培养。
以〈信赖经营，现场经营，透明经营〉为经营方针；以〈勤勉，俭朴，亲爱〉为企业文化提倡人文文化，致力于个人及企业的共同发展。
而且公司内通过现场培训，海外总公司实习等各个方面的研修教育构成了创造性人才。
追求优越工作环境的同时构建有竞争力的公司，为了培养家族似的人才毫无保留的倾注着所有力量。
此资料是以现代MOBIS管理方式，经营方针为出发点展示了现代MOBIS变速器的新面貌，而且对公司各部门及业务进行了详细的叙述。
生产部门把在手动变速器工厂工作的人员必须知道的变速器组装零件现况和手动变速器变速构造及变速器的作用，对变速器的一般理论以及与生产有关的管理职及现场负责人们看到设备会提出的疑问以图解的形式进行了说明让人们更容易理解，而且是以现场管理中使用的样式、各级别基本遵守的业务内容为基准整理的。
保全部门拥有对运行率影响最大的非常重要的业务内容，因此以设备的一般管理理论和对设备故障的事前预防等业务为重点内容构成，今后通过对设备的准确诊断及评价能使材料对生产活动有所帮助而准备了这些材料。
品质管理部门是以变速器有可能发生的所有问题为基准，以品质管理的一般业务及变速器拥有的特点，齿轮加工的主要核心齿形开发及理论构成，而且通过制作齿轮的切削工具研磨理论可以接触到更完善的品质理论，因而由今后变速器品质不会发生误差的资料所构成。
本书的特点是使读者能对核心内容一目了然。这样能在最短的时间内对现代MOBIS变速器培训有所了解。
最近国家和企业都在迎接变革，这样的时期希望此书能带来一点帮助。
借此对编制此书时在原稿制作及监修付出心血给与帮助的变速器职员和使我能像初次入社时的心态迎接业务毫无保留的鼓励及支持我帮助我的总公司及总经理致谢。
根据‘稻子熟了会低头’这句格言希望此教材能像不张扬默默地照亮工作岗位的现代人一样把深远的意义传播出去。
最后祝愿学习此书的所有人借着知识的力量超越现代车继续发展为对全世界重要的技术人才。
Chapter VI CSC-120 Secondary Protectors for CSC-120 Series Digital Circuit Breaker
Secondary protectors for CSC-120 series digital circuit breaker are mainly applicable to various wiring patterns of circuit breaker from 220kV to 500kV, as for its protective functions, see Table 10.
Table10
Model
CSC-121A CSC-122A CSC-122B CSC-122T CSC-122D CSC-122M CSC-123A CSC-125A CSC-126A
Function Combined Recloser & Secondary Protection for Circuit Breaker Secondary Protection for Circuit Breaker Bar Coupling Protection Short-connect-line Failure Startup Over-voltage Protection
Wiring Pattern Available 3/2 Wiring Double Bus Bar Bar Coupling Transformer 110~220kV Electrified Railway Line Protection Device 66~220kV
Bar Coupling (three trips) 3/2 Wiring ≥220kV
Remote Trip and judge on site ≥220kV
Combined Recloser √ √
Failure Protection for Circuit Breaker √
Dead Zone Protection √
Charging Protection √ √ √ √ √
Three-Phase Inconsistent Protection √ √ √ √
Failure Protection √ √ √ √ √
Over-current Protection √ √ √ √ √
Zero-sequence Over-current Protection √ √
High Constant Value
Differential & Brake √
Low Constant Value Differential & Brake √
Simple Differential √
Judgment of Remote Trips √
Over-voltage Trip √
Over-voltage Signaling √ √
Close with Hand √
6.1 CSC-121A Digital Combined Recloser and Secondary Protection for Circuit Breaker
Function of Device
The device includes functional modules as combined recloser, failure protection, three phase inconsistent protection, charging protection and dead zone protection, etc.
Function & Principle
Protect Startup Component
Each functional module has different startup component. If any startup component of the module is started up, trip & close brake exit positive power supply of whole device will be turned on.
Current differential startup component: when any inter-phase current differential or zero-sequence current differential surpasses startup constant value for four times continuously, protection is started up.
Zero-sequence secondary startup component: zero-sequence secondary startup is mainly applied in functional module of failure protection.
Negative-sequence secondary startup component: negative-sequence secondary startup is mainly applied in functional module of failure protection, which is put into operation when failure function of negative-sequence startup generator transformer unit works.
Function of Combined Recloser
The device provides with four patterns including single phase recloser, three-phase recloser, combined recloser and recloser, being connected into startup recloser circuit on both sides of circuit breaker and satisfying requirement of middle circuit breaker of one and a half circuit breaker. Software and hardware for sidle circuit breaker and middle circuit breaker are the same.
2014.4.13