查询词典 relay

In these cases, the mode of singlepole reclosing was set, and when single phase grounded fault occurred at the transmission line, all of protection relay operated correctly, and three phases of one breaker directly tripped at one time, and this breaker was not reclosed.

详细介绍了华中某500kV变电站两起典型的重合闸不正确动作事故，即在单重模式下，输电线路发生单相接地故障，保护装置均正确出口情况下，其中一个线路断路器直接三跳，未重合。

"Photocells are used in control systems, where interrupting a Beam of light opens a circuit, actuating a relay that supplies power to a mechanism to Bring about a desired operation, such as opening a door or setting off a Burglar alarm."

光电管用于控制系统中，在遮断光束时，系统就打开电路，从而开启继电器，为所需要的动作提供动力。

"Photocells are used in control systems, where interrupt ing a beam of light opens a circuit, actuating a relay that supplies power to a mechanism to bring about a desired operation, such as opening a door or setting off a burglar alarm."

光电管用于控制系统中，在遮断光束时，系统就打开电路，从而开启继电器，为所需要的动作提供动力。

Present Situation and Developing Prospect of Artificial Intelligence and Fuzzy Control in Power System Protection Relay.

人工智能与模糊控制在电力系统继电保护应用的研究现状及前景

Finally is carries on relay protection of power system and the automatic device disposition to entire power plant equipment.

最后是对全电厂的设备进行继电保护和自动装置的配置。

His paper also makes some proposals on protecition relay setting in power system and on manufacturer.

文章最后对电力系统的运行保护设定和制造厂的制造提出了建议。

Has a switch to ground to control a power relay, For possible initialization of other equipment.

有一个开关研控制力量中转，以方便可能需要的其它设备的初始化。

Power system ; protective relay ; expert system

电力系统；继电保护；专家系统

So it is not enough to relay on power cut test. The on-line monitoring is quite needed.

因此，对MOA性能的判断仅仅依赖停电试验是不够的，研究MOA在线检测技术十分必要。

The power system relay protection course must be tightly combined with the practice of the modern power system.

现代电力系统是高度数字化、信息化和自动化的超大区域网络结构，电力系统继电保护是对其安全稳定运行至关重要的一门技术。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。