This paper introduces the reform concept and realization method based on S7-200 PLC on trip fault and the wavy pressure behind engine in the process of compressing.
针对煤气加压机在加压过程中经常跳闸和煤气管网压力波动较大导致机后压力不稳定的情况,介绍了采用S 7-200 PLC对该系统进行变频器改造的原理和实现方法。
Through the cause analysis on the trip fault of AC filter breaker of Jiangling Converter Station, the hidden risk in GIS equipment was discovered. The tentative resolving measure was raised.
通过对江陵换流站交流滤波器开关跳闸故障原因的分析,发现GIS组合电器存在的重大隐患,提出了初步解决办法。
This ensures that the only protective device to trip is the one nearest to the fault.
还可以确保惟一跳闸的保护装置就是离故障点最近的装置。
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.
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。
This paper analyzed the reason of trip for over current and overload in VVVF. And introduced how to determine on these fault.
本文对变频器的过电流跳闸和过载跳闸的故障原因进行了分析,并介绍了如何判断的具体方法。
The protective relay is a sensing device, which senses the fault, determines its location and then send command to the proper circuit breaker by closing its trip coil.
保护继电器是一个传感装置,感官的过错,确定其位置,然后发送命令关闭其旅行线圈到正确的断路器。
You don't need to have a guilt trip about your break-up, it's not your fault.
你不需要在分手这件事情上感到内疚,这不是你的错。
If a fault occurs, the fuse ruptures diverting all the fault current through the trip coil, tripping the breaker.
如有故障发生,熔断器会断开,使所有故障电流流经跳闸线圈,将断路器断开。
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.
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。
The setting schemes of the resistance coefficient and the least trip differential current for the current differential protection based on sampled values using fault component are discussed.
论文根据上述分析设计了基于故障分量采样值差动保护、故障分量相量差动保护、常规电流差动保护和零序电流差动保护自适应的保护方案。
When a fault occurs in power system, the relevant relay will operate and send out trip order to clear the faulted transmission line or other parts.
当电力系统发生故障时,系统中的保护装置动作,将故障线路或元件切除。
The lab experiments showed that under the single phase fault status, the system could be accurate and reliable to detect the fault line and to drive the trip.
经实验室试验证明该系统在单相故障状态下能准确可靠地检测出故障线路并驱动跳闸。
It is of great significance to decrease fault-trip times, assure reliable operation and lessen inspection workload for distribution systems.
该方法对降低配网事故跳闸次数、保证配网连续可靠运行和减少配网线路故障巡查的工作量都具有重要的意义。
HV and EHV transmission lines are equipped with split-phase breaker. If a longer reclosing time is setting in a heavy load line, the system may swing after the trip without fault of remote breaker.
高压、超高压输电线路的开关为分相开关,当对侧开关单相偷跳后,在线路负荷比较重、同时重合闸动作时间比较长的情况下可能引发系统振荡。
The fault trip of AC filter overload protection in Gezhouba converter station leaded to the out of service of all HP11/13 low-pass AC filters.
根据葛洲坝换流站一次双极停运事故的现象,指出过负荷保护误动作是这次事故的主要原因。
The fault trip of AC filter overload protection in Gezhouba converter station leaded to the out of service of all HP11/13 low-pass AC filters.
根据葛洲坝换流站一次双极停运事故的现象,指出过负荷保护误动作是这次事故的主要原因。
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