连接的电气元件有断路器、隔离开关与接地开关、电流互感器、电压互感器、避雷器、母线等。
The electrical elements connected include circuit breaker disconnector and earthing switch current transformer voltage transformer lightning arrester bus etc.
在额定控制电源电压低于35%时，欠电压脱扣器应防止断路器合闸。
At rated control supply voltage less than 35% under-voltage should prevent breaker from closing.
敬告：欠电压脱扣器必须先通电，断路器才能再扣及合闸。否则将损坏断路器！
Caution: under-voltage release must be electricity, circuit breaker can be closed, otherwise will damage circuit breaker!
放大器输入为电压信号，与光敏二极管产生的光电流信号成比例。调制光柱以断路器同样的频率照射光敏二极管。
The amplifier input is a voltage proportional to the photocurrent signal produced by a photodiode, which is irradiated by a modulated light beam at the same chopper frequency.
断路器在输电电压下的快速开断对输电系统是明显有利的。
Faster interruption of circuit breakers in the transmission voltage offers significant advantage to the transmission system.
在额定控制电源电压的35%～70%时，欠电压脱扣器应可靠使断路器脱扣；
Under the voltage of 35% ~ 70% of the rated voltage, the under-voltage release should make the breaker trip correctly.
在额定控制电源电压低于35%时，欠电压脱扣器应防止断路器合闸。
In case of the operation voltage less than 35% of the rated voltage, the under-voltage should prevent the breaker from closing.
断路器电容器不仅具有改善断路器各断口电压分布的作用，而且还能降低断路器断口恢复电压上升率。
The circuit-breaker capacitor can not only improve the voltage distribution along arc-quenching chambers connected in series, but also reduce the rise rate of the recovery voltage.
变电站包括各类设备：变压器、断路器、负荷开关、母线、电流互感器、电压互感器等。
Transformer substation including each kind of equipment: transformer, circuit breaker, load switch, generatrix, current transformer, voltage transformer and so on.
结果表明，相控真空断路器动作分散性小，可以有效地完成电容器组的同步关合，大幅度降低系统暂态过电压、减小涌流。
The experimental results show that the operation is stable and may be used to complete the synchronized-closing of capacitor banks in order to limit the transient over-voltage and inrush current.
手车有断路器手车、电压互感器手车、电压互感器避雷器手车、所有变压器手车、隔离手车及接地手车七种。
There are circuit breaker handcart, voltage transformer handcart, voltage transformer arrester handcart, all transformers handcart, isolation and earthing trolley hand trolley.
概述了在轨道交通系统中选用直流熔断器的目的及选用方法，包括额定电压、额定电流的选择，与断路器的配合工作。
The object of using DC fuse in tunnels and way of selection were expounded, including the selection of rated voltage and current, and the coordination of circuit breakers.
切除空载变压器是真空断路器操作过电压问题最严重的情况。
Interrupting no load transformer is the most serious case in vacuum circuit breaker switching overvoltage.
合成试验方法在断路器开断能力考核中得到了广泛应用，但就额定电压下的合成关合来说其研究和应用相对较少。
Although synthetic test method has been widely applied in breaking test of circuit-breaker, as synthetic making test under full voltage, it has been relatively less studied and applied.
本文采用光电测试系统，观察到在低压限流断路器开断过程中的电弧电压跌落现象。
Based on optoelectronic measuring system, arc voltage drops are observed in arc running process of current limiting circuit breaker.
同时还研究了断路器合闸相位角分布规律、MOA的额定电压、线路绝缘水平等因素的影响。
These factors including distribution of circuit breakers closing Angle, rated voltage of MOA and the insulation level of transmission line are considered.
分析了4极断路器非正常跳闸的原因，提出采用施加外接辅助电源电压的解决措施。
The cause of the improper trip of 4 pole circuit breaker was analyzed. A subsidiary power voltage is applied to solve the problem.
通过对真空断路器操作过电压成因的阐述，探讨小水电领域内常用的过电压保护设备。
This paper presents the reasons leading to switch overvoltage for vacuum circuit breaker, and then discusses the usual overvoltage protection device in the small hydropower station.
电压浪涌发生时，就会激活浪涌电压保护器中的断路器，从而保护计算机系统。
When avoltage surge occurs , it activates a circuit breaker in the surge protector , protecting the computer system.
欠电压脱扣器在万能式断路器上是十分常见的一件电压保护装置，该装置的失效直接影响到断路器的正常运行。
An undervoltage tripper is a very popular electrical protection device for universal breaker, which will directly affect the normal operation of a breaker if it breaks down.
本文分析了在断路器断口间并联电容对开断近区故障瞬恢复电压的影响。
This paper deals with the TRV produced by breaking a kilomitre fault with a circuit breaker on condition that some condensers are connceted with the breaks in parallel.
最终的目标是从真空断路器机械特性方面入手，降低操作并联电容器组时的重燃率、并减小操作过电压危害。
The aim is to reduce the reignition rate and over-voltage damage from the perspective of the mechanical characteristics of the vacuum breaker switching shunt capacitor Banks.
电网发生故障时，根据断路器跳闸信息和母线电压信息，采用BFS(广度优先搜索)的方法搜索出故障区域。
When a fault occurs in a power system, fault area is located using Broad First Search (BFS) method by breakers and bus voltage message.
真空断路器的操作过电压严重威胁电力系统和设备的安全。
The switching-surge overvoltage of the vacuum circuit breaker can seriously imperil safety of electric system and equipment.
这就要求并列合闸时断路器两侧电压的幅值差、频率差和相角差都足够小。
This means the difference of magnitude, frequency and phase of the voltages between the two sides of breaker must be small enough.
断路器电容器可并联于工频交流断路器的断口上，使各断口间的电压在开断时达到均匀。
The circuit-breaker capacitors are shunted to the break of AC breaker to equalize while closing(or breaking) a circuit.
目前随着更高工作电压的使用，由于断路器分闸、合闸操作所引起的电压暂态过程或过电压．已成为主要考虑的方面。
With the much higher operating voltages now in use the projected voltage transients or surges due to switching i. e. the opening and closing of circuit breakers, have become the major consideration.
选用四星型MOA作为限制真空断路器操作过电压的主保护器，效果十分明显。
The effect was obvious to select four-star connection MOA was a main protector to limit overvoltage in operation of a vacuum disconnector.
最后简要分析了真空断路器开断电容器组过电压的形成原因及为减少重燃的电极老炼措施。
At last, vacuum circuit breaker switching capacitance group overvoltage formative causes and electrode refining for lessening reignition are discuss.
常见的电气故障主要有电源电压不正常、组接地、组短路、组断路和缺相运行等。
Familiar electric failures include voltage is abnormal, the winding is landing, the winding is short, the winding break the road and running lack of phase etc.
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