文中介绍了两个工程设计、运行的应用实例，以及变压器容量及起动电压水平的计算方法。
Two engineering design projects, practical operation and the calculation method of transformer capacity and start voltage were introduced.
对基于电压源换流器(vsc)的直流输电(VSC - HVDC)系统的起动过程控制策略进行了研究。
The control strategy of start-up process of HVDC based on voltage source converter (VSC-HVDC) is discussed.
电动机起动时的母线电压降不得超过10%。
A bus bar voltage dip during motor starting, shall not exceed 10%.
本装置配有过流保护、负序电流保护、零序电路保护、起动时间过长保护、低电压保护。
Over current protection, negative current protection, zero sequence current protection, over time of start protection and low voltage protection is configured in the device.
它采用大功率的SCR组成电压调节电路，这样交流电动机就可以低压起动。
It adopts SCR with large power to establish the voltage adjustment circuit, so the AC motor can be started with low voltage.
本文对铁磁实体转子隐极同步电动机异步起动时的转矩与电压关系进行了研究。
This paper studied the relationship between torque and voltage, when the solid rotor synchronous motor involving non salient pole started asynchronously.
介绍了一种利用晶闸管两端电压信号来确定软起动结束点的方法。
A method of identifying the end of soft starting process based on the voltage across the non-conducting thyristor is introduced.
在工程实际中，电动机起动时引起的母线电压下降不能超过规定值。
In practical projects, while an asynchronous motor starting, the drop of voltage on the bus bar must be within the limits which is stipulated by the national standard.
本文研究了三相感应电动机软起动器，主电路由三组反并联的晶闸管构成。通过控制晶闸管的触发角，可降低三相感应电动机定子电压，从而达到抑制起动电流冲击的目的。
The principle of the soft starter is reducing the voltage applied to the stator of the induction motor by control the triggering angle of the thyristors in order to limit the starting current surge.
本系统为确保可靠工作和安全运行，设置了软起动、过电压、过电流和过热等保护环节。
To insure reliable operation and safe motion, the soft start, the overvoltage, overcurrent, and overheating protection are installed at the system.
所研究的软起动器具备四种起动方式：电压斜坡起动、限流起动、转速斜坡起动和分级变频起动。
It has four start mode: the ramp voltage start, the limit current start, the ramp speed start and the discrete frequency start.
低电压软启动器以体积小，转矩可以调节、起动平滑、冲击小并具有软停机功能等优点得到了越来越多的应用。
The low-voltage soft starter has been applied increasingly due to its advantages such as small size, adjustable torque, smooth starting, low impact and soft-stop function.
即IC611。电动机允许在额定电压和额定频率下直接起动。
The motor is permitted to directly start in conditions of rated voltage and rated frequency.
对电动机在不同性质的负载下，恒电流起动过程中起动时间与电压率、起动电流倍数的关系进行了理论分析。
The paper analyses the relation of the starting-time and the multiple of starting current and voltage in the current-limited starting process of motor with different character load .
同时，母线电压跌落也可能不能满足电动机起动要求。
And the voltage drop of medium voltage busbar also maybe not satisfies the requirement of biggest motor start-up.
研究了环境温度，过量空气系数，蓄电池电压，点火提前角对单循环冷起动时，起动转速和排放的影响。
The effects of environment temperature, excess air ratio, storage battery voltage on start speed and emissions are studied.
ZX17系列不锈钢电阻器适用于交流50HZ电压至1140v及直流电压至1000v的电路，主要作为电动机起动、制动与调速用，额定功率为5.6KW。
ZX17 series stainless steel resistor is applied to AC 50hz, 1140v and DC voltage 1000v circuit, main of starting, braking and controlling motor. The rated power is 5.6kw.
柜内还装有电流表、电压表、自动空气开关、指示灯、交流接触器、工频变频转换开关及起动、停止按钮等。
Inside is arranged ammeter, voltmeter, air circuit breaker, indicator, ac contactor, conversion switch, and buttons for starting or stopping.
本文针对此问题分析研究了一种一键式起动系统控制的方案，该方案不需对起动机的控制进行安全监控，同时能有效解决低电压起动困难问题，在不改动低端EMS平台的硬件的前提下，实现一键式起动功能。
The current ECU based on low-end EMS platform can not realize the one-button start function on economy car as it is lack of the related monitoring controller and the starter driving circuit.
本文讨论了双电压单相电容起动异步电动机的设计特点，着重分析了该电机起动时的等效电路。
The paper points out the characteristics of the design and calculation of double voltage single-phase induction moter with capacitance starting, and analyses the circuit model of the machine.
在此基础上，根据电梯起停频繁的特点，利用直流母线电压变化率推导出起动时刻理想初始参数和在输入功率变化时的前馈调节量，提高了系统的快速性。
On this foundation, in view of features that the elevator starts and stops frequently, the ideal starting time parameter and the value of feed forward adjustment when input power .
研究表明，采用ISG技术后，当蓄电池的电压为36～60V时，均可将柴油机拖至目标转速，满足起动要求。
The results showed that with the ISG technology, the diesel engine can be dragged to meet the requirement speed on the battery voltage of 36~60V.
本文通过一起动力站过电压事故原因的调查，得出了两种以上有争议的相近结论。
The paper concludes two disputed conclusions through probing into an overvoltage accident in power station.
利用MATLAB搭建了高压异步电动机软起动控制的仿真模型，对限流和电压斜坡软起动控制方式分别进行仿真。
The simulation model of high voltage induction motors soft starting control is created by MATLAB. The soft starting control model of the current-limit start and the voltage-slope start are simulated.
为什么电容起动马达副绕阻中的电容两端电压一般会大于额定输入电压？
Why will the capacitors in the auxiliary winding of motor usually be rated higher than the rated input voltage?
为什么电容起动马达副绕阻中的电容两端电压一般会大于额定输入电压？
Why will the capacitors in the auxiliary winding of motor usually be rated higher than the rated input voltage?
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