如果在继电器中发现可燃气体,这说明有内部故障,比如过热或者电弧作用;而继电器内的空气只说明油位低或者有漏油。
Flammable gas found in the relay indicates some internal fault such as overheating or arcing, whereas air found in the relay may only indicate low oil level or a leak.
作为安全装置,布赫继电器对于设备内的电介质故障是非常敏感的。
The Buchholz Relay is used as a protective device sensitive to the effects of dielectric failure inside the equipment.
一种现代保护继电器能提供多达600条高分辨率的信息与故障记录。
A modern protection relay offers up to 600 information and fault records with high resolution.
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.
频率转换继电器故障,不能转换频率。
The frequency changing relay is out of order. It can not change frequencies.
介绍采用PLC替代传统的继电器逻辑控制对钢管热镀锌的生产实现自动运行及故障处理。
The PLC is applicated in the steel tube galvanization process replace of traditional relay logic control to realize the automatic operation and fault treatment.
对于后备保护装置防止高阻抗接地故障,将配置一只双极方向过电流继电器,同瞬时跳闸附件的时间成反比。
For backup protection against high resistive ground faults, there will be a dual polarized directional overcurrent relay, inverse time with instantaneous trip attachment.
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.
通过对静态继电器整定用数字拨盘开关接点转换示意图和易发生的故障介绍,初步探讨了静态继电器的测试点的合理选择方法。
The article discusses about the proper selection of static relay test points through introducing the contactor sketch of rectifying static relays with digital dial switches and easy-happening faults.
该电阻器的阻值要保证被测装置发生故障时的短路电流不会超过开关卡上任一组继电器的最大电流指标。
The value of this resistor is chosen such that, in the event of device failure, the short circuit current will not exceed the maximum current specification of the relays on either set of switch cards.
从理论上分析了同杆并架双回线跨线不接地故障时距离继电器测量阻抗的变化规律。
This paper analyses the rule of variations measuring impedance of distance relay when phase to phase fault occurs between two lines on double circuit line on the same pole (DLSP).
WJJL1智能过流继电器是典型的电子、电器技术相结合的产品。具有过电流、短路、缺相、过欠压、欠电流、相失衡及启动故障等保护功能。
WJJL1 intelligence over current relay is a typical electronic apparatus which has over current, short circuit, over voltage, under curent, phase faults and starting failure protective functions.
从后得到的保护继电器命令断路器,只有断开故障因素。
The circuit breaker after getting command from the protective relay, disconnects only the faulted element.
对JSBXC- 850型时间继电器稳压部分故障进行了分析,提出故检测及措施。
The troubles of JSBXC-850 time relay steady voltage unit, Analyzed and measures of trouble inspection were provided.
介绍宇通客车电涡流缓速器手控开关、速度控制开关、气压控制开关、继电器盒等故障的检测方法。
The authors introduce the troubles inspection methods of the manual control switch, speed control switch, gas-pressure control switch and relay box of electromagnetic retarders used in Yutong coaches.
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.
使用者可将继电器接地故障跳闸电流设置为高于最高值几毫安,以准确测量系统充电。
User is able to set the ground fault trip current of the relay just milliamps above the highest level, to accurately measure the system charging.
电耗大,一旦控制系统发生断电等故障,继电器的状态无法维持,电器的开关状态就会自动改变。
Because the electricity wastage is heavy, once the controlling system take places malfunctions as electricity cut, the state of the relay can't last, then the switch state will be self-changed.
最后根据轻微故障的特点提出对变压器比率差动继电器通用特性选择的建议,供同仁参考。
According to the calculation result and features of low percentage interturn fault, the general characteristic selection for percentage differential relay of transformer is suggested.
后备继电系统将设置第一、第二与第三区方向距离继电器,以防相位故障与接地故障。
The backup relaying system will have first, second, and third zone directional distance relays for protection against phase and ground faults.
绞线机、合绳机电气控制设备中的时间继电器故障率较高,是影响这类设备正常运行的主要原因。
Higher fault rate of time relay in the electricity control apparatus of strander and closer is the main reason causing this kind of equipment to work off normal.
利用微型继电器接点切换检测法等方法研制了镉镍蓄电池故障检测仪,对直流系统实施在线检测。
Making use of micro-relay contacts transfer detection, technique we developed a cadmium-nickel storage batter fault detector.
本文将机车继电器控制电路等效为数字组合逻辑电路,建立了它的固定故障等效模型。
The electric locomotive bang-bang circuit is converted into an equivalent digitalcombinational logic circuit for setting up its stuck-at fault model.
故障诊断系统依据保护继电器和断路器的采样信息估计电力系统中故障段的位置。
The diagnostic system can be applicable to power system control center for fault section estimation using information of relays and circuit breakers.
老式龙门刨床的电控部份采用继电器逻辑控制,线路复杂,故障率高,查找故障困难。
Relay logic control is used in old planer, and its circuitry is complicated, so the malfunction rate is high, and it is difficult to find the malfunction out.
KA5为跳闸报警继电器。当设备产生偏励磁、可控硅故障、过电流等故障时,KA5吸合,断路器分励线圈得电跳闸,切断主电源。
When there are bias excitation, controllable silicon failure, over current and other failures, KA5 gets absorbed and breaker loop trips by powered on so as for switching off main power supply.
此类继电器能够增加系统安全性,并对三相交流接地电阻或接地配电系统进行可靠的低级接地故障检测。
They provide system security and immediate reliable low level ground fault detection on three-phase AC resistance grounded or grounded electrical distribution systems.
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.
为此对故障原因进行了分析,同时针对继电器搭接的汽轮机保护装置的设计缺陷进行了详细的分析并提供了解决方案。
This paper analyzed the failure and the designed defects of protection units lapped with relays, it also provided a solution scheme.
应用推荐