2022年铁路真空断路器概要 .pdf

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1、铁路真空断路器概要内容提要简介.2描述.2断路器技术规格.5描述 .5 额定要求.5 真空泡.6 机构操作特性.6 辅助件技术参数.6 使用条件.7 Page 1 of 6 名师资料总结-精品资料欢迎下载-名师精心整理-第 1 页，共 7 页 -简介The vacuum circuit breaker GSR/GSH type is designed to cover a wide one-phase application range:Frequency range 频率范围:16 2/3 Hz or 50/60 Hz (50/60HZ)Nominal voltage 正常电压：from 2

2、4 kV up to 36 KV (27.5KV)Lightning impulse voltage 雷电冲击电压：from 125 kV up to 250 KV(185KV)Rated nominal current 额定电流：from 1250A up to 2000A(1250A)Rated short circuit current 额定短路开断电流：up to 31.5 KA(25KA)Fix mounted,truck or cassette mounted This is obtained by changing few components i.e.mainly Vacuum

3、 interrupter(真空泡)and insulators(绝缘子).描述The pole(脊柱)consists of one vacuum interrupter supported by light alloy upper and lower conducting parts and placed between two insulating plates.The upper part of the pole houses the moving contact mechanism which transmits the motion coming from the drive cab

4、inet(机构箱)by means of one insulated driving rod(绝缘驱动杆).The pole is fixed on the drive cabinet by means of two horizontal cast-resin insulators(环氧树脂支撑绝缘子)The upper(上铝块)respectively lower(下铝块)contact are fitted with either fix or withdrawable connections.Page 2 of 6 名师资料总结-精品资料欢迎下载-名师精心整理-第 2 页，共 7 页 -

5、The main circuit current between the terminals and the moving contacts of the vacuum interrupters is made by means of high-conductivity copper flexible conductors(软连接块).The mechanism is spring operated and of?energy storage,free open and close?type.During closing operation the excess the energy is t

6、ransferred to the opening spring(分闸弹簧)thus the opening spring is automatically tightened on closing and immediately ready to trip.The contact force is applied on the closed vacuum contacts by means of spring washers.The wear of the contact may be checked from the top of the drive cabinet.The differe

7、nt parts of the mechanism such as opening spring()分闸弹簧,motor(马达),closing spring(合闸弹簧),trip and closing coils(合、分闸线圈),auxiliary contacts(辅助接点)and locking devices are enclosed within a high resistance welded steel cabinet.Page 3of 6名师资料总结-精品资料欢迎下载-名师精心整理-第 3 页，共 7 页 -In the basic configuration the cir

8、cuit breaker in equipped with one opening-coil and one closing-coil.Additional standard or fast opening-coil may be added on request.In the basic configuration the circuit breaker is equipped with four auxiliary contacts per position.However the design is made in such a way that additional contacts

9、may be easily added on request.The breaker may be fix-mounted,truck-mounted or cassette-mounted.In standard arrangement for a fix or truck mounted breaker,a steel cover protects the Close and Open push buttons(手动合、分闸按钮).Operation counter(计数器),state of spring(合闸弹簧储能指示),state of the contact displays(触

10、头分、合指示)are displayed through the front panel.The frame is fitted with four fixing holes located on each corner.Spring-tightening manual operation may be performed from the front with a crank.Page 4 of 6 名师资料总结-精品资料欢迎下载-名师精心整理-第 4 页，共 7 页 -The breakers truck is a rigid steel construction including:Tw

11、o 2,5 mm thickness steel columns rigidly braced Four wheels Space and fixing holes for current transformer Fixed earthing terminals Handle to push-in and pull-out the truck The final arrangement is performed according to end-user s requirements(auxiliary contacts,interlocks,etc.)断路器技术规格额定要求Rated fre

12、quency 额定频率Hz 16 2/316 2/350/60 50/60 Rated operation voltage 最高工作电压(rms,phase to earth)kV 17.5 17.5 27.5 27.5 Rated continuous current 额定持续电流A 2000 2500 2000 2000Rated power-frequency withstand voltage(50 Hz,one minute,rms,phase to earth)额定工频耐受电压(相对地)kV 50 70 95 95 Rated power-frequency withstand v

13、oltage(50 Hz,one minute,rms,across open contacts)额定工频耐受电压(相对相)kV 70 70 95 95 Rated lightning impulse withstand voltage (1.2/50 s,peak,phase to earth)额定雷电冲击耐受电压(相对地)kV 125 170 185 250 Rated lightning impulse withstand voltage(1.2/50 s,peak,across open contacts)额定雷电冲击耐受电压(相对相)kV 170 170 200 250 Rated

14、short-circuit breaking current(rms,at rated operation voltage)额定短路开断电流kA 63 31.5 25 25 Rated short circuit closing current(peak,at rated operation voltage)额定短路关合电流、峰值kA 63 80 63 63 Page 5 of 6 名师资料总结-精品资料欢迎下载-名师精心整理-第 5 页，共 7 页 -Rated withstand current(peak,at rated operation voltage)额定动稳定电流、峰值kA 63

15、 80 63 63 Rated short time withstand current(rms,duration 3.0 s)额地短时耐受电流(3.0s)kA 25 31.5(*)25 25 Rated operating sequence额定操作顺序O-0.3 s-CO-180s CORated opening time(standard coil)额定分闸时间(标准线圈)ms 40 40 40 40 Rated opening time(optional fast coil)额定分闸时间(快速线圈)ms 17 17 25 25 Rated closing time 额定合闸时间ms 10

16、0 100 100 100 Standard applied 选用标准IEC 56/JB 6463 真空泡Rated frequency 额定频率16 2/3 Hz Type 50/60 HzType Storage life 受命 20 years 20 years Vacuum degree 真空泡真空度 10-4 Pa 10-4 Pa Number of mechanical operations 机械寿命1000010000Number of operating cycles 操作次数(额定电流条件下)(at rated current)1000010000Number of oper

17、ating cycles 操作次数(额定短路开断电流条件下)(at rated short circuit breaking current)50 50 机构操作特性弹跳时间 3 ms Page 6 of 6 名师资料总结-精品资料欢迎下载-名师精心整理-第 6 页，共 7 页 -机械机构免维护10000辅助件技术参数Service operating voltage standard range 60 V,110 V and 220 V DC/220 V AC1)Motor type Universal Power consumption 250 WPower consumption sta

18、ndard opening coil 150 W during opening time(线圈功率)4 NO-4 NC 1)Rated current 二次额定电流3 A at 220 V DCPower frequency withstand voltage test on the二次回路耐压2 kV AClow voltage circuit terminals and control circuit Service conditions使用条件Operating temperature range 工作温度范围-10 C/+45 C Storage temperature range存放温度范围-20 C/+45 C Altitude 海拔高度 1000 m 名师资料总结-精品资料欢迎下载-名师精心整理-第 7 页，共 7 页 -