IEEE 继电保护代码中英文对照（51-75）

基于IEEE Std C37.2™-2008标准和《电气工程名词》进行翻译校准

红日初升，其道大光  —— 梁启超

3.1.51 Device number 51—ac inverse time overcurrent relay

A device that functions when the ac input current exceeds a predetermined value, and in which the nput current and operating time are inversely related through a substantial portion of the performance range.

51-交流时限过流继电器

当交流回路中电流超过定值时动作的继电器，具有定时或反时限特性。

3.1.52 Device number 52—ac circuit breaker

A device that is used to close and interrupt an ac power circuit under normal conditions or to interrupt this circuit under fault or emergency conditions.

52-交流断路器

在正常情况下闭合和断开交流电源电路，或在故障或紧急情况下中断交流电源电路的一种设备 

3.1.53 Device number 53—field excitation relay

A device that forces the dc machine field excitation to build up during starting or that functions when the machine voltage has built up to a given value.

53-励磁机或直流发电机继电器

一种迫使直流电机在起动时建立励磁或在电机电压达到定值时动作的继电器。

3.1.54 Device number 54—turning gear engaging device

A device either electrically operated, controlled, or monitored that functions to cause the turning gear to engage (or disengage) the machine shaft.

54-盘车装置啮合元件

一种电动的、控制的或监控的装置，其作用是使盘车装置与电机轴啮合或脱开。

3.1.55 Device number 55—power factor relay

A device that operates when the power factor in an ac circuit rises above or falls below a predetermined value.

55-功率因数继电器

当交流回路中，功率因数上升到定值以上或下降到定值以下动作的继电器。

3.1.56 Device number 56—field application relay

A device that automatically controls the application of the field excitation to a synchronous ac motor at some predetermined point in the slip cycle.

56-励磁继电器

是在滑差曲线某一预定点上自动控制交流电机励磁器的电机。

3.1.57 Device number 57—short-circuiting or grounding device

A device that functions to short-circuit or ground a circuit in response to automatic or manual means.

57-短路或接地元件

是 以自动或手动方式将一电路短路或接地的一次回路切换装置。

3.1.58 Device number 58—rectification failure relay

A device that functions if a power rectifier (diode) fails to conduct or block properly.

58-整流故障继电器

是一种电源整流器不能正常触发导通或闭锁时动作的元件。

3.1.59 Device number 59—overvoltage relay

A device that operates when its input voltage exceeds a predetermined value.

59-过电压继电器

当其输入电压超过定值时动作的一种设备。

  3.1.60 Device number 60—voltage or current balance relay

A device that operates on a given difference in voltage, or current input or output, of two circuits.

60-电压或电流平衡继电器

3.1.61 Device number 61—density switch or sensor

A device that operates at a given density value or at a given rate of change of density.

61-密度开关或探头

一种按给定密度值或给定密度变化率工作的装置。

3.1.62 Device number 62—time-delay stopping or opening relay

A device that imposes a time delay in conjunction with the device that initiates the shutdown, stopping, or opening operation in an automatic sequence. Example: 62BF = breaker failure function (with no current monitoring).

62-延时停机或开机继电器

一种装置，它与按自动顺序启动关机、停止或打开操作的装置一起施加一个时间延迟。 例如:62BF =断路器故障功能(没有电流监控)。

3.1.63 Device number 63—pressure switch

A device that operates at a given pressure value or at a given rate of change of pressure.

63-压力开关

在设定压力或设定压力变化率下动作的继电器。

3.1.64 Device number 64—ground detector relay

A device that operates upon the insulation failure of a machine or other apparatus to ground .

NOTE—This function is not applied to a device connected in the secondary circuit of current transformers in a normally grounded power system where other overcurrent device numbers with the suffix G or N should be used;for example, 51N for an ac time overcurrent relay connected in the secondary neutral of the current transformers.

64-接地保护继电器

当电机或其他设备对地绝缘失效时动作的装置。

注：本功能只适用于检测电机外壳、闭合容器、接合装置结构、不接地绕组或电路的对地漏电电流。本功能不适用于中性点接地的电力系统中与电流互感器二次回路连接的元件。（此时可用过流元件加上后缀G或N表示，比如51N代表位于电流互感器二次中性点的交流时限过流继电器）

3.1.65 Device number 65—governor

A device consisting of an assembly of fluid, electrical, or mechanical control equipment used for regulating the flow of water, steam, or other media to the prime mover for such purposes as starting, holding speed or load, or stopping.

65-调速器

一种由流体、电气或机械操作方式组合的控制设备，用于调节进入原动机的水、蒸汽或其它介质的流量，以达到起动、定速、负载或停机的目的。

3.1.66 Device number 66—notching or jogging device

A device that functions to allow only a specified number of operations of a given device or piece of equipment, or a specified number of successive operations within a given time of each other. It is also a device that functions to energize a circuit periodically or for fractions of specified time intervals, or that is used to permit intermittent acceleration or jogging of a machine at low speeds for mechanical positioning.

66-多级式启动元件

其功能是只准某一装置，或设备动作至规定的次数，或在某一设定的时间内，连续相互动作至规定的次数。它也开业用来定期的给电路通电，或将规定的时间间隔分开，或用来间歇加速，或为机械定位在低速下，分次推动一下机器。

3.1.67 Device number 67—ac directional overcurrent relay

A device that functions at a desired value of ac overcurrent flowing in a predetermined direction.

67-交流方向过流继电器

是一种对在一定值，且按预定方向流动的交流过电流起作用的继电器。

3.1.68 Device number 68—blocking or “out-of-step” relay

A device that initiates a pilot signal for blocking of tripping on external faults in a transmission line or in other apparatus under predetermined conditions, or cooperates with other devices to block tripping or reclosing on an out-of-step condition or on power swings.

68-闭锁继电器

是当输电线路发生外部故障或其它设备在预设条件以下时，发出跳闸指令，或在失步条件下发生功率振荡摇摆时，配合其他元件对跳闸和重合闸回路进行闭锁的继电器。

3.1.69 Device number 69—permissive control device

A device with two positions that, in one position permits the closing of a circuit breaker, or the placing of a piece of equipment into operation, and in the other position, prevents the circuit breaker or the equipment from being operated.

69-许可式控制元件

通常是有两个位置的手动开关，在一个位置上允许闭合断路器，或将设备投入运转，而在另一位置则阻止断路器或设备动作。

3.1.70 Device number 70—rheostat

用在电路中的可变电阻转账给，它由电气操作或带有诸如辅助开关、位置开关、限位开关一类的电气附件。

70-变阻器

3.1.71 Device number 71—liquid level switch

A device that operates at a given level value, or on a given rate of change of level of a liquid.

71-液位开关

当液位或液位变化率达到定值时动作的装置。

3.1.72 Device number 72—dc circuit breaker

A device that is used to close and interrupt a dc power circuit under normal conditions or to interrupt this circuit under fault or emergency conditions.

72-直流断路器

在正常情况下用作直流电源回路的开合闸，或在紧急情况下断开此回路。

3.1.73 Device number 73—load-resistor contactor

A device that is used to shunt or insert a step of load limiting, shifting, or indicating resistance in a power circuit; to switch a space heater in circuit; or to switch a light or regenerative load resistor of a power rectifier or other machine in and out of circuit.

73-负载电阻接触器

在电力中作旁路或串入电阻，作负载限制、转移、指示用的，或关闭线路中的空间加热器、指示灯、功率整流器的再生负载电阻、电路内外其他电机的再生负载电阻。

3.1.74 Device number 74—alarm relay

A device other than an annunciator, as covered under device function 30, that is used to operate, or that operates in connection with, a visual or audible alarm.

74-警报继电器

与30号信号继电器不同，而是用来动作声、光警报器，或其动作接通此报警器。

3.1.75 Device number 75—position changing mechanism

A device that is used for moving a main device from one position to another in equipment; for example, shifting a removable circuit breaker unit to and from the connected, disconnected, and test positions.

75-变位机构

用来将一组装置，从设备中的一个位置，移到另一个位置的机构。例如，将一个可移动式的断路器来回移动至断开、接通或试验位置。

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