真空断路器 3AH Vacuum Circuit Breaker 3AH

Power Transmission and Distribution

真空断路器真空断路器真空断路器真空断路器 3AH

Vacuum Circuit Breaker 3AH上海西门子开关有限公司上海西门子开关有限公司上海西门子开关有限公司上海西门子开关有限公司 2002002002007777年年年年

Siemens Switchgear Ltd. Shanghai, 2007


西门子带来了针对

中国市场设计

的真空断路器

3AH3

3AH5

Siemens introduces high quality vacuum circuit

breaker designed specially for Chinese market.

3AH3

上海西门子开关有限公司生产的上海西门子开关有限公司生产的上海西门子开关有限公司生产的上海西门子开关有限公司生产的真空断路器真空断路器真空断路器真空断路器The VCBs manufactured at SSLS

3AH5


合资厂生产的断路器

Siemens joint venture makes two types of VCBs

3AH3 3AH5

针对大容量市场,如：开关开断容量较高(可达40kA,3150A),机械寿命更长

VCBs for high end market, i.e. VCBshigher breaking capacities ( up to 40kA) and longer mechanical life.

上海西门子开关有限公司生产的上海西门子开关有限公司生产的上海西门子开关有限公司生产的上海西门子开关有限公司生产的真空断路器真空断路器真空断路器真空断路器The VCBs manufactured at SSLS

针对小容量市场,如：开关开断容量较低

VCBs for low end market, i.e. VCBs lower breaking capacities


� 所有一次绝缘部件均采用大爬距结构 (20mm/kV), 完全满足国内电力系统的运行工况要求.所有型号断路器断口工频耐压均可达到48 kV.

� Big creeping distance(20mm/kV) of insulation parts, totally fulfil the operation requirements of local power system. The power frequency withstand voltage of all types can reach 48kV.

� 平均截流值水平小于3A,从而保证了极低的操作过电压

� The average chopping current is less than 3A to ensure low operation overvoltage.

� 在1万次合分操作循环内, 完全免维护, 无需对机构作进一步调整以及润滑,极大的降低了人工维护成本. 机电寿命可达20,000次和30,000次.

� Maintenance-free within 10000 operation cycles. None adjustment and lubricate to framework, thus greatly reduce the labor maintenance cost. The mechanical life/cycles can reach 20000 and 30000 times.

3AH3/5真空断路器的特点真空断路器的特点真空断路器的特点真空断路器的特点Features of Siemens 3AH3/5 VCBs made by SSLS


3AH3/5真空断路器的特点真空断路器的特点真空断路器的特点真空断路器的特点Features of Siemens 3AH3/5 VCBs made by SSLS

� 所有断路器在出厂前均完成不少于200次的机械磨合空载操作, 之后完成对断路器的最

后机械参数调整,确保了断路器出厂后的动态长期性能

� At least 200 times’ mechanical operations before leave the factory, then the final mechanical data adjustment ensure the long-term dynamical performance of breakers.

� 敞开式空气外绝缘保证了断路器绝缘水平的长期稳定性, 并且所有零部件易于接近, 维护清理及更换部件非常方便

� Open air-insulated construction guarantee the long term stability of breaker’s insulation level. All parts are easily to approach so that the cleaning and replacing of parts is very easy.

� 具有长期和广泛的国内可靠运行业绩, 并且由大量国内开关柜制造厂在西安高压电器研究所取得了型式试验的反复论证, 得到了国内用户的一致认同, 在行业内部享有极高的声誉.

� Long term and a wide range of domestic reliable operation achievements. The repeated type test in XIHARI by a large amount of domestic switchgear manufacturers makes 3AH win unanimous recognition of local users and enjoy high reputation on the industry.


� 3AH5真空断路器的机械机构设计目的是针对31.5kA及以下的断路器，机构部件数量

精，成本降低。� 3AH5 VCBs are designed to be very economical VCBs with minimum number of

parts, which also cause the cost reduced.

� 3AH3真空断路器的机械机构设计目的是高的开断能力（31.5kA以上）和高的机械寿命(30,000次)。

� 3AH3 VCBs have robust mechanism designed for higher breaking capacities and higher mechanical life.

� 断路器的选择应以实际需要为依据。西门子保证断路器能完成本身参数规定的开断，且有足够的安全裕度。用户设计时不须再考虑裕度。

� The selection of the breaker is decided by the application. Siemens breaker can fulfill all the listed specifications, and the safe margin has been considered. The customers needn’t consider the safe margin again when they design projects.

如何选择如何选择如何选择如何选择3AH3和和和和3AH5?How to select 3AH3, 3AH5?

如何选择如何选择如何选择如何选择3AH3和和和和3AH5?How to select 3AH3, 3AH5 ?


3AH5115-2 额定电流 Rated current 1250A 额定短路电流Rated short-circuit breaking current 31.5kA短路开断次数 Rated breaking times 100 次

3AH5 404-1/2 额定电流 Rated current 800A/1250 A额定短路电流Rated short-circuit breaking current 25kA短路开断次数 Rated breaking time 100 次

3AH5 真空断路器真空断路器真空断路器真空断路器技术数据技术数据技术数据技术数据Technical Data of the 3AH5 VCB

4sRated Short-Circuit Duration额定热稳定时间

42kVPower Frequency Withstand Voltage工频耐压

75kVLightning Impulse Withstand Voltage雷电冲击耐压

20, 000次Operating Cycles at Rated Current机电寿命

12kVRated Voltage额定电压

3AH5 VCB


带有合闸和分闸单元的现代操作机构，

部件数量非常少

Modern operating mechanism with

modules for closing and tripping

operation, only consisting of a few

parts.

3AH5真空断路器操动机构真空断路器操动机构真空断路器操动机构真空断路器操动机构3AH5 VCB operating mechansim


基本配置Basic equipment:� 机械连锁和操作计数器� Mechanical interlocking and operations counter

� 合闸线圈和一级分励线圈� Closing solenoid and 1st shunt release

� 电气防跳� Electrical antipumping

� 马达操作储能机构� motor operated stored energy mechanism

� 11常开＋11常闭辅助开关� auxiliary switch 11 NO + 11 NC

� 二次侧64芯接插件� terminal connection via 64 pole pin plug

可选择配置Optional equipment:

� 附加脱扣线圈（最多一个）� Additional shunt release

(Max. one)

� 端子排� Terminal strip connection

3AH5的二次设备的二次设备的二次设备的二次设备Secondary equipment of 3AH5 VCB


3AH3 115-2/3/4 3AH3 116-3/4 3AH3 116-6/7额定电流 1250/1600/2000A 1600/2000 A 2500/3150 A额定短路电流 31.5kA 40kA 40kA短路开断次数 100 次 50 次 50 次

Rated currentRated short-circuit breaking currentRated breaking times

3AH3 真空断路器真空断路器真空断路器真空断路器技术数据技术数据技术数据技术数据Technical Data of the 3AH3 VCB

4sRated Short-Circuit Duration额定热稳定时间

42kVPower Frequency Withstand Voltage工频耐压

75kVLightning Impulse Withstand Voltage雷电冲击耐压

30, 000次Operating Cycles at Rated Current机电寿命

12kVRated Voltage额定电压

3AH3 VCB


� 耐用且极可靠

� Rugged and extremely reliable

� 易于维护

� Very easy to maintain

� 部件少

� Fewer parts

� 长的使用寿命

� Long life

3AH3真空断路器操动机构真空断路器操动机构真空断路器操动机构真空断路器操动机构3AH3 VCB Operating mechanism


基本配置Basic equipment:� 机械连锁和操作计数器� Mechanical interlocking and operations counter

� 合闸线圈和一级分励线圈� Closing solenoid and 1st shunt release

� 电气防跳� Electrical antipumping

� 马达操作储能机构� motor operated stored energy mechanism

� 11常开＋11常闭辅助开关� auxiliary switch 11 NO + 11 NC

� 二次侧64芯接插件� terminal connection via 64 pole pin plug

可选择配置Optional equipment:

� 附加脱扣线圈（最多一个）� Additional shunt release

(Max. one)

� 端子排� Terminal strip connection

3AH3的二次设备的二次设备的二次设备的二次设备Secondary equipment of 3AH3 VCB


� 通过不断完善的自动化生产工艺以及独特的设计模式(例如:极少的机械调整点)保证了一贯的高品质.

� Continually improving the automation of the production process and the unique design patterns (for example : few mechanical adjustments points to ensure the consistent high quality.)

� 高要求的制造质量标准, 所有断路器都经过了完整的型式试验.

� High requirements on manufacturing quality standard. All breakers pass the complete type tests.

� 具有数百次机械磨合空载操作的计算机辅助出厂试验,确保了断路器出厂后的动态长期性能.

� CAD leave-factory test with hundreds of mechanical operations ensure the long-term dynamic performance of breakers.

� 出厂试验测试值与长期研究的经验数据进行比较 (电子指纹).

� The value of leave-factory test compare with the empirical data of long term research (electronic fingerprinting)

� 精确的公差配合, 高耐磨的材料, 决定了断路器的服务寿命, 确保了断路器在整个寿命期内免维护

� Fine tolerances and high-wear material determine the service life of breakers, thus guranteemaintenance-free of breakers within its service life.

高质量标准确保了断路器的高性能高质量标准确保了断路器的高性能高质量标准确保了断路器的高性能高质量标准确保了断路器的高性能High quality standard gurantee high performances of VCB


恒定的绝缘强度 / Constant dielectric� 紧闭的真空灭弧室排除了环境的影响 / Hermetically sealed vacuum interrupter keeps

out all environmental effects � 真空中没有气体分解物 / No gas decomposition products in vacuum

恒定的接触电阻 / Constant contact resistance� 真空中触头不会被氧化 / In vacuum, contacts cannot oxidize� 微小的接触电阻值终身保持不变 / The very small resistance is maintained throughout

the contact life

开断次数高 / High total interrupting operations� 触头烧损小，故额定电流的开断次数高达30000次，额定短路电流的切断次数可高达100

次(或更多) / Since contact erosion is small, rated normal current can be interrupted up to 30,000 times and rated short-circuit breaking current up to 100 times (and more)

经济优势 / Economic advantages� 真空灭弧室免维护 / Vacuum interrupters are maintenance-free� 西门子的真空断路器彻底免维护 / Modern vacuum circuit-breakers are also

maintenance-free, e.g. Siemens type 3AH

重要特点重要特点重要特点重要特点Features


免维护的免维护的免维护的免维护的3AH能够做到能够做到能够做到能够做到 / / / / The maintenance-free 3AH can perform:

� 无须润滑- without lubrication� 无须调整- without adjustment

� 在整个寿命期内，正常情况下能达到1万次合分操作循环或极其频繁操作，及长期无故障的操作.

� During the entire lifetime of the VCB under normal operation conditions up to 10,000 switching cycles according to IEC 694 (DIN VDE 0670, Teil 1000) and under frequent switching conditions as well as when switched after long no-fault periods

免维护功能通过下述措施实现免维护功能通过下述措施实现免维护功能通过下述措施实现免维护功能通过下述措施实现 / Maintenance-free operation is achieved through:� 采用低磨耗轴承 – bearings with low wear material pairings� 精密的公差配合 – fine tolerances, to avoid non-permissible play

� 可动部件采用防腐的永久润滑 – bearings and latches with permanent lubrication(corrosion protection)

服务服务服务服务？？？？不不不不，，，，谢谢谢谢谢谢谢谢！！！！Maintenance-free


主要部件主要部件主要部件主要部件 Main parts1. 连接法兰 Connecting Disc2. 屏蔽罩 Arcing Chamber3. 陶瓷外壳 Insulator4. 静触头 Fixed Contact5. 动触头 Moving Contact 6. 金属波纹管 Metal bellows7. 导向管 Guide8. 动触杆 Drive and terminal bolt

特征参数 Typical Data� 内部压力 10-6 毫巴

Inner pressure 10-6 mbar� 触头间隙6-20毫米

Contact gap 6 to 20 mm� 接触电阻约10 微欧

Resistance approx. 10 µOhm

1

2

43

5

6

7

8

3AH真真真真空断路器的核心部件空断路器的核心部件空断路器的核心部件空断路器的核心部件 ---- 真空泡截面示意图真空泡截面示意图真空泡截面示意图真空泡截面示意图Core parts of 3AH VCB – Structure map of vacuum


� 开发初期，真空灭弧室的开断能力虽然很好，但是截流值还是较大In the beginning of the development vacuum interrupters had a good breaking capacity, but not an acceptable chopping current

� 西门子公司在自己是实验室里进行了大量研究工作，研制出一种触头材料，以满足这些局部自相矛盾的要求Intensive investigations by Siemens in their own laboratories led to a material which fulfils the partly self-contradictory requirements of thecontact material

� CuCr50/50被认为是最理想的触头材料The optimal contact material was found as CuCr 50/50

触头材料触头材料触头材料触头材料Contact material


� 高介质强度 / High dielectric strength

� 高短路开断容量 / High short-circuit breaking capacity

� 强的抗电弧烧损的能力 / High resistance to arc erosion

� 低接触电阻 / Low contact resistance

� 低截流值,最大2－3 A, 无过电压产生 / Low chopping current, max. 2-3 A;

no overvoltage produced

� 触头熔焊在一起的可能性非常低 / Low tendency to contact welding

� 非常少的气体杂质 / Low gas content

A

0.4

00

0.1

1 2 3 4 5 6

0.2

0.3

0.5

0.6

P

Ia

P 相关的出现概率 / Relative frequencyof occurrence

Ia 截流值 / Chopping current

含铜铬各含铜铬各含铜铬各含铜铬各50％％％％的触头材料特性的触头材料特性的触头材料特性的触头材料特性Features of CuCr 50/50


开断性能主要由以下决定The switching behaviour is mainly determined by

触头材料Contact material

介质强度 Dielectric strength开断容量 Breaking capacity耐受力及抗腐蚀能力 Endurance & erosion载流容量 Current carrying capacity截流值 Chopping current电阻 (熔焊) Resistance to welding

开断容量 Breaking capacity触头系统电阻 Resistance of contact system

影响 / Influence on

真空开断技术的发展真空开断技术的发展真空开断技术的发展真空开断技术的发展Development of vacuum breaking technique

触头几何尺寸Contact geometry

影响 / Influence on


杯状触头Disc contact

纵向触头Axial magnetic

field (AMF) contact

横向触头Radial magnetic

field (RMF) contact

触头形状触头形状触头形状触头形状Contact type


电流过零前的扩散状电弧 ( i=2kA )Diffuse arc prior to current zero (i = 2 kA)

收缩状电弧 ( i=40kA)Constricted arc (i = 40 kA)

高速摄像(曝光时间13us)底部为阴极

High-speed photographs (exposure time 13µs) Cathode at bottom

横向磁场间电弧形成横向磁场间电弧形成横向磁场间电弧形成横向磁场间电弧形成Arc form between traverse magnetic field


电流过零前扩散状电弧(I=10kA)Diffuse arc prior to current zero (i = 10 kA)

大电流放电时的扩散装电弧Diffuse high-current discharge (i = 60 kA) (I=60kA)

横向磁场间电弧形成横向磁场间电弧形成横向磁场间电弧形成横向磁场间电弧形成Arc form between traverse magnetic field

高速摄像(曝光时间13us)底部为阴极

High-speed photographs (exposure time 13µs) Cathode at bottom


� 每一台断路器都要经过200台次无负荷操作

Each and every VCB manufactured is subjected to 200 no-load on-off cycles

� 出厂实验的必要参数都是经过计算机测试，且该记录被存储

The routine testing of necessary parameters is computerised and all records are stored.

� 柏林工厂有先进的实验室针对型式实验和产品的研究开发

Berlin factory has fully developed laboratory for Type Testing to assist R&D

测试和包装都有严格的标准测试和包装都有严格的标准测试和包装都有严格的标准测试和包装都有严格的标准Testing and Packing done as per strict norms


合资厂对产品的设计、制造、装配和质检都采用与德国相同的方法和工艺，从而使产品完全满足德国

质量标准。

The design, manufacturing, assembly and routine test are same as the process in Germany, which assure the high quality of the products.

真空断路器采用高技术的设计真空断路器采用高技术的设计真空断路器采用高技术的设计真空断路器采用高技术的设计、、、、制造及装配制造及装配制造及装配制造及装配High technology in design, manufacturing and assemb ly of VCBs


所有产品都经过先进、高自动化测试设备的检验，这也是质量控制中的一个重要环节。

Final products are tested using advanced & automatic testing equipments,again one important factor contributing quality.

产品出厂前，断路器的一切机械特性参数都是由电脑测试完成的，精度非常高。

The mechanism of the breakers are tested by computer, the results are very accurate.

合资厂的真空断路器采用高技术的质检设备合资厂的真空断路器采用高技术的质检设备合资厂的真空断路器采用高技术的质检设备合资厂的真空断路器采用高技术的质检设备High technology of testing for VCBs in SSLS


高质量断路器High Quality Breaker

制造经验

Manufacturing experience

型式试验经验

Type test experience

大量的断路器运行经验A lot of breaker used in the world

客户反馈Customer feed back

丰富的研发经验Profound R&D

对已使用过的断路器的研究

Examination of used breakers to get infor. about long-term

QA and behavior in service life.

应用在特殊场合的经验如：

发电机出口，电弧炉变Experience on special

application such as GVCB, Arc furnace VCB

经验是高质量的关键经验是高质量的关键经验是高质量的关键经验是高质量的关键Experience is the key factor of Good Quality

真空断路器 3AH Vacuum Circuit Breaker 3AH

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