由于长期使用继电器触点上接触不良。
The touch points are not firmly connected due to long time usage of relay.
控制器的一个重要功能是提供报警继电器触点。
An essential function of the controller is to provide alarm relay contacts.
每行还通过继电器触点的漏泄电阻和电容耦合到每一列。
Each row is also coupled to each column through the relay contact leakage resistance and capacitance.
电磁继电器触点的磨损和老化是影响继电器可靠性的重要因素之一。
The wear abrasion and ageing of contact is one of the important factors which affect the electromagnetic relay reliability.
即使对于电阻性负载，屏蔽电缆的电容也可能会导致继电器触点焊接。
Even with resistive loads, the capacitance of a shielded connecting cable may cause relay welding.
继电器触点和线圈之间应该屏蔽，以使继电器电源引起的感应噪声最小。
Relay contacts should be shielded from the coil to minimize induced noise from the relay power supply.
介绍了造成继电器触点动熔焊的电弧类型，指出闭合短电弧是动熔焊的直接原因。
The arc types that make the relay contact dynamic welding occur were introduced. It was pointed out that the closing short arc is direct reason of dynamic welding.
经查是与四通阀线圈串联的控制继电器触点接触不良，电阻增大，致使电压降低。
The check is in the series of coil and four-way reversing valve control relay contact resistance increases, the bad, the contacts the voltage reduced.
介绍了造成继电器触点动熔焊的电弧类型，指出闭合短电弧是动熔焊的直接原因。
It was pointed out that the closing short arc is direct reason of dynamic welding.
电磁继电器触点的碰撞接触及所引起的回跳是影响继电器可靠性与电寿命的重要因素。
The collision of electromagnetic relay contacts and corresponding bounce have a strong influence on relay reliability and electrical life.
大多数开关主机都可通过触发输入进行外部触发，并且在继电器触点稳定之后可输出一个触发脉冲。
Most switch mainframes can be triggered externally via the trigger input and can send an output trigger pulse when the relay contacts have settled.
预测继电器触点接触电阻的研究对于预测其接触可靠性，乃至预测其整体可靠性均具有非常重要的意义。
The prediction study on the contact resistance of relays is very significant to that on the contact reliability of relays, even to the whole reliability.
如果负载电阻被直接连接到伏特计的输入端子，通过继电器触点的电流会产生电压降，测得的电池电压将存在误差。
If the load resistor was connected directly across the voltmeter input terminals, the current through the relay contacts would cause a voltage drop and the measured cell voltage would be in error.
机械力造成的刺激继电器触点的操作原则的工作。在一个或多个绕组对磁芯或核心，因此，长期的机电式继电器通过电流流动产生的机械力。
The mechanical force is generated through current flow in one or more windings on a magnetic core or cores , hence the term electromechanical relay.
当利用这一配置测量漏流时，通过每个继电器的常闭触点同时向所有的二极管施加偏压。
When measuring the leakage current with this setup, the voltage bias is applied to all the diodes simultaneously through the normally closed contact of each relay.
对于相对较大的继电器，为了确保触点良好闭合，也可能必须采用热切换。
With relatively large relays, it is even possible that hot switching must be used to ensure good contact closure.
继电器还需要具有卓越的“触点-线圈”屏蔽效应。
The relays should also have excellent contact-to-coil shielding action.
这种电荷转移是由于触点的机械释放或闭合、“触点-线圈”电容以及信号和继电器驱动线路之间的寄生电容引起的。
This charge transfer is due to the mechanical release or closure of the contacts, the contact-to-coil capacitance, and the stray capacitance between signal and relay drive lines.
切换电流是指继电器在开路和闭合触点时能可靠处理的最大电流。
Switched current is the maximum current that can be handled reliably while opening and closing contacts.
继电器的接触点就可以执行控制功能。
The contacts of this relay can be used for control functions.
在明确了实际触点对继电器寿命的重要性后，大量的工作就是寻找和选择一种“好”触点材料。
Given the importance of the actual contact to the life of the relay, much effort has gone into finding and choosing "good" contact materials.
继电器是保护系统的逻辑元件，它感知故障，并使断路器解扣电路带电和断路器打开触点。
Relays are the logic elements of a protection system which sense the fault and cause the circuit-breaker trip circuits to be energized and the breakers to open their contacts.
触点熔焊是继电器最为严重的故障形式之一。
Welding is one of the worst faults for an electromagnetic relay.
载流是指继电器在触点闭合后能够承受的最大电流。
Carry current is the maximum current the relay can tolerate once the contacts have been closed.
系统控制核心采用AT 89 C 2051单片机，信号输出为音响和多组继电器开、闭触点。
The system takes the monolithic computer AT89C2051 as the control kernel, and the tone and contacts of relay as the signal output.
用动态接触电阻测量系统进行了电磁继电器失效检测试验，检测了其触点闭合过程的接触压降。
The contact voltage-drop of counterpart contacts in the closing course of electromagnetism relay is observed and recorded in its failure test using dynamic contact resistance measurement system.
用动态接触电阻测量系统进行了电磁继电器失效检测试验，监测了其触点闭合过程的接触压降。
The contacts voltage of counterpart contacts in the close course of electromagnetic relay is observed and recorded in its failure tests using dynamic contact resistance measurement system.
触点熔焊是汽车继电器最为严重的故障，它可能导致汽车事故。
Contact welding of automotive relay is the worst failure and may result in serious car accident.
触点熔焊是汽车继电器最为严重的故障，它可能导致汽车事故。
Contact welding of automotive relay is the worst failure and may result in serious car accident.
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