1) Centrifugal Switch
离心开关
1.
Transient Rotate Speed Meter of Motor for the Centrifugal Switch s Breaking Away;
电机离心开关断开瞬时转速测量仪
2.
A New Type of Meter for Measuring Switching-off Speed of Motor s Centrifugal Switch;
一种新型的电动机离心开关断开转速测量仪
3.
When the motor is started up to a fairly higher speed,the centrifugal switch will automatically make the rotor winding to be short circuit so as to be operate normally.
将转子绕组分为两段,并进行绕组移相改接,即可达到减小起动电流与增大起动转矩的目的,通过离心开关自动地将转子绕组短接后便可进入正常运行。
2) centrifugal switch
离心式开关
3) centrifugal starting switch
离心式起动开关(电机的)
4) isolator
['aisəleitə]
隔离开关
1.
Overvoltage incident due to500kV isolator operation in Shanghe substation;
上河变电所500kV隔离开关操作中感应过电压事故分析
2.
Through a practical overhaul case of high voltage circuit breaker and isolator, the paper expounds the faults caused by difficulties of the circuit breaker in closing and makes corresponding measures.
通过高压断路器和隔离开关的实际检修工作 ,论述了导致断路器合闸困难的缺陷成因以及相应的处理方法。
3.
The effect of isolator operation on the selectivity of medium inpedence and digital bus-bar protections are analysed.
详细分析了操作隔离开关对中阻抗及微机母线保护选择性的影响 ,指出在进行隔离开关合、分闸操作过程中 ,若母线发生故障 ,存在导致扩大故障范围和造成人身伤亡的可能性 ,最后给出一些意见和设
5) disconnector
隔离开关
1.
Improvement on suppression of birds harm for GW5 disconnectors;
GW5隔离开关防鸟害方案
2.
Analysis of Abnormal Phenomenon in Operation and Overhaul for GW4 Series Switch - disconnector;
对GW4系列隔离开关运行检修中异常现象的分析
3.
Analysis of the operation of disconnector in Shandong Power Grid;
山东电网高压隔离开关运行分析
6) disconnecting switch
隔离开关
1.
In the process of switching operation of 220kV primary equipment,the switch of motor power source tripped suddenly,and then electric arc occurred between the moving contact and stationary contact of disconnecting switch.
对一起因220kV一次设备在倒闸操作过程中,电动机电源开关突然跳闸,致使隔离开关动、静触头之间产生电弧,危及电网和设备安全的这一危险情况进行了分析,找出危险根源,强调执行反事故措施的重要性。
2.
After comparing the operation condition of the improved high-voltage disconnecting switch of 110 kV and above with that of the initial one,the defects of the improved switch found in the operation of Sichuan power grid are pointed out,and the improvement suggestions are proposed.
通过对110 kV及以上高压隔离开关完善化前后运行状况的分析,指出了完善化后产品在四川电网运行中发现的缺陷并提出了改进建议。
3.
Concerning the faults frequently occurred during the operation of disconnecting switches,the factors affecting the safe and reliable operation of HV disconnecting switches were analyzed,and ways to strengthen the operation management of HV disconnecting switches and measures to improve equipment reliability were put forward.
针对隔离开关在运行中的常见故障,分析了影响高压隔离开关运行可靠性的原因,提出了加强高压隔离开关的运行管理及提高其运行可靠性的对策。
补充资料:离心机速率区带离心法
速率区带离心法是在离心前于离心管内先装入密度梯度介质(如蔗糖、甘油、KBr、CsCl等),待分离的样品铺在梯度液的顶部、离心管底部或梯度层中间,同梯度液一起离心。离心后在近旋转轴处(X1)的介质密度最小,离旋转轴最远处(X2)介质的密度最大,但最大介质密度必须小于样品中粒子的最小密度,即ρP>ρm。这种方法是根据分离的粒子在梯度液中沉降速度的不同,使具有不同沉降速度的粒子处于不同的密度梯度层内分成一系列区带,达到彼此分离的目的。梯度液在离心过程中以及离心完毕后,取样时起着支持介质和稳定剂的作用,避免因机械振动而引起已分层的粒子再混合。
由于ρP>ρm可知S>0,因此该离心法的离心时间要严格控制,既有足够的时间使各种粒子在介质梯度中形成区带,又要控制在任一粒子达到沉淀前。如果离心时间过长,所有的样品可全部到达离心管底部;离心时间不足,样品还没有分离。由于此法是一种不完全的沉降,沉降受物质本身大小的影响较大,一般是应用在物质大小相异而密度相同的情况。常用的梯度液有Ficoll、Percoll及蔗糖。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条