介绍了用于电压继电器动作特性测试的可程控交流电源。
A programmable power supply which tests action characteristic of voltage relay is presented.
设计了测量继电器动作时间与释放时间的自动测试系统。
The automatic test system which can measure action time and release time of the relay is designed.
采用CAXA实体设计软件作动画演示，模拟继电器动作过程。
It makes animation demonstration using CAXA entity design software, and it simulates the relay operation process.
过电流继电器是继电保护装置的一种，当负载电流超过整定值时，继电器动作。
An "Overcurrent relay" is a type of protective relay which operates when the load current exceeds a preset value.
当继电器动作时，一个或多个接触器动作且给断路器的脱扣线圈通电，从而将断路器断开。
When the relay operates, one or more contacts will operate and energize a trip coil in a Circuit Breaker and trip (open) the Circuit Breaker.
雕塑和装置-艺术家可以创作有机材料或无机材料的作品，也可以用声，光，视频和机械或电器动作。
Sculpture and installation - whichever organic or inorganic material. In the works you can use sounds, lights, videos, mechanical or electrical movements.
该装置通过接近开关来产生脉冲信号，由单片机进行计数，按实际要求做出相应的继电器动作输出和模拟量输出。
The device produces pulse signals by a proximity switch and count by the processor, corresponding relay operation output and analog quantity output are done according to real requirements.
本项目是某预研项目的子课题，该子课题要求研制一种测试固体温度继电器动作温度和回复温度的自动测控系统。
This project is a sub-project from an academic institution, where an automatic measurement and control system is required to test active temperature and revertive temperature.
介绍了一种由微机控制的对DL、DY-20c系列电流、电压电磁继电器动作时间及抖动时间自动检测的方法。
This paper introduced the method of the automatic measurement of DL (DY) - 20c series current (voltage) electromagnetic relay movement time and vibration time controlled by computer.
在这种情况过载继电器不应过早动作。
The overload relay should not trip too soon on this condition.
按设计的整定值，检验继电器实际动作值。
Check actual operation value of the relay according to set value.
检查电磁式继电器的动作、返回值及返回系数应符合产品技术要求。
Check Electromagnetic relay operation, return value and return coefficient shall comply with product technology requirement.
继电器内部应清洁、接线牢固、各部件完好，动作灵活、可靠。
The relay inner part shall be clean, connection solid, all part is perfect, flexible and liable.
为了确保磁保持继电器可靠动作，施加到线圈上的激励电压须达到额定值，且脉冲宽度设置须达到动作时间的3倍以上。
Ln order to ensure the reliability of relay coil voltage, must reaeh value, the pulse width must be 3 times more time.
在交流电路中常采用空气阻尼型时间继电器，它是利用空气通过小孔节流的原理来获得延时动作的。
Often in ac circuit by air damping model time relay, it is to use the principle of air through orifices throttling to obtain delay action.
电流互感器（CT）饱和时，电流继电器能不能正确动作，一直存在二种载然不同的观点。
There are two different points of view on whether current relay operates correctly or not, when CT saturates.
由于零差保护的特殊性，零差继电器本身就是一只灵敏电流继电器或动作功率很小的电压继电器。
Due to the specialty, REF relay is a current relay with very high sensitivity or a voltage relay with very low acting power.
早期在交流电路中常采用空气阻尼型时间继电器，它是利用空气通过小孔节流的原理来获得延时动作的。
Early in the circuit often USES air damping model time relay, it is to use the principle of air through orifices throttling to obtain delay action.
当电器元件的动作时间可能影响控制线路动作程序时，必须考虑元件的动作时间及配合方法。
Operation time of equipment components and cooperative methods must be considered if the operation time of the components will influence motion process of control circuit.
目前最常用的为大规模集成电路型成的时间继电器，它是利用阻容原理来实现延时动作。
The most commonly used for large scale integrated circuit of the time relay into, it is to use resistance to achieve delay action let principle.
提出了一种通用的动作边界可自定义的继电器模型。
Construct a universal relay model that the action boundary can be self-defined.
文中论述了利用因果网技术进行故障定位的方法，因果网描述了故障元件、继电器、开关之间内在的动作关系；
This paper discusses the fault locating method based on causality network technology, and the inherent operating relationship between the faulty element, protective relays and circuit breakers.
电磁继电器静态吸反力特性的配合技术是保证电磁继电器可靠性动作的关键技术。
The cooperation of static electromagnetic attractive force and spring force characteristics is important to ensure the electromagnetic relay can operate reliably.
同时，继电器不存在动作的“电压死区”，具有明确的方向性。
There is no operative"voltage dead zone", and the definite directionality exists.
复核继电器的动作值。
配合SD - LJD (LXK)系类零序电流互感器和动作继电器即组成完整的零序(接地)保护系统。
Used together with SD-LJD (LXK) series ZCT and executing relay to form a complete zero sequence (ground) protection system.
提出了一种基于负序电压极化的自适应接地阻抗继电器方案，并对其动作特性进行了分析。
An adaptive impedance relay based on negative sequence voltage polarization is proposed, and its operating characteristic is analyzed.
极化磁系统具有体积小、重量轻、功耗低、灵敏度高、动作速度快等一系列优点，被广泛应用于军用与民用电磁继电器产品中。
With the advantages of small size, light weight, low power dissipation and fast action, polarized magnetic system has been widely applied to military and civil electromagnetic relay.
通过对该方法的研究，揭示了目前常用的基于故障分量的距离继电器的通用表达式与动作特性，对比了这几类距离继电器在可靠性与灵敏性上的差异。
By the research, the paper explains the essence and the character of several types of common-used fault-component based distance relay, compares their difference in the reliability and sensitivity.
分析了微机ul P失磁继电器的准确动作方程及整定计算方法，弥补了某些文献的不妥或不足之处。
Accurate operation equation and setting calculation on microprocessor based UL-P loss of excitation relay are analyzed in this paper which has supplied a deficiency in some works or papers.
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