文中提出两种新型保护回路。
控制和保护回路模拟信号的电压都低于24V直流。
The voltage of the analog signals in control and protection circuits are all below DC 24V.
介绍了在母线不停电情况下，利用负荷电流模拟母线故障检查保护回路存在的问题。
Here introducing the way that when the bus energral to use the load current to simulate the busbar fault so as to check the problem of circuit and to correct and solve it.
主要原因是锅炉安全阀二次保护回路设计有缺陷，再加上安全阀起跳和回座的整定值与运行额定值相重叠造成的。
The main reasons were due to the defect in the design of safety valve secondary circuit and the overlap of the service rating and the setting for safety valve popping and reseating.
第三章详细介绍了软起动控制器的硬件设计，包括主电路、控制电路、驱动保护回路和辅助开关电源电路的分析和设计。
The third chapter mainly introduces the hardware design of soft starter, including the main circuit, control circuit, drive circuit, and protect circuit and auxiliary switched power design.
每个测试都起到质量反馈回路的作用，给那些想修改产品代码的人创建了一个安全保护网，以及一份可以执行的文档。
Each test will serve as a quality feedback loop, creating both a safety net and an executable form of documentation for anyone who wants to change the production code.
这样做以后，断路器失灵的可能性高于保护和跳闸回路失灵的可能性。
The possibility that a circuit breaker may fail to perform its function, when instructed to do so, is higher than for protection and trip circuit.
应该为任何管道提供过压保护，包括液体产品可能被隔离阀堵在里面的蒸发器回路、止回阀或其它系统组件。
Overpressure protection should be provided on any lines, including the vaporizer circuit, in which liquid product can be trapped by isolation valves, check valves, or other system components.
空气处理单元APU，集干燥器、卸载阀、多回路保护阀的功能于一体，使整车管路简洁可靠；
Integrating the dryer, unloading valve and multi-circuit protective valve, the air processing unit (APU) makes the pipeline more compact and reliable.
这种很严重的状况，如果水侧暴露至城市系统，则必须通过设计避免，因为收集器回路最终会用水充满，且所有冻结保护都失去。
This disastrous situation must be avoided by design if the water side is exposed to the city water system because the collector loop eventually fills with water, and all freeze protection is lost.
差动保护电流回路接线是否正确，可通过相量分析法和带负荷检验法进行判断。
The wiring correctness of differential protection current loop can be verified using phasor analyzing method and on load testing method.
最后确定相关的保护方案和二次回路方案。
Finalization of the relevant programs and Protection of the secondary circuit program.
在变压器模型回路方程的基础上，应用等效瞬时漏电感，提出了一种新型变压器保护原理。
A novel principle of transformer protection using equivalent instantaneous leakage inductance, based on the transformer model loop equation, is proposed.
文章主要讨论了锅炉汽包水位高低保护系统逻辑判断回路的自动切换。
The paper mainly discusses the automatic switching of the logic estimation circuit of the drum boiler's water level protection system.
本文提出了一种利用微机软件实现的变压器差动保护电流回路断线闭锁方案。
A blocking scheme for current circuit break in differential protection system of transformers performed by software of micro-computer is proposed in this paper.
引用实例分析了PT二次回路对继电保护和计量的影响，并提出了改进措施。
The effects of PT secondary circuit on relay protection and measurement were analyzed by an example and the improving measures were set forward.
因此，本组态软件提供的这样一个平台，让控制工程师能集中精力于控制回路及逻辑保护（包含电气逻辑）的构成，而不必拘泥于一些具体而烦琐的程序操作。
So the configuration software offer a flat that control engineer can attend to the structure of control loop and logic protect(include Electric logic), not but to handle complicated program.
分析了轴电压吸收回路以及接地碳刷与大轴间接触电阻对发电机转子接地保护的影响，并分别提出了相应的对策和注意事项。
This paper analyzes the influences of shaft voltage absorbing circuit and brush touching resistance on the performance of generator rotor earth fault protection.
回路中有了检测保护电路就可以使整个系统运行的可靠性有了保障。
With detection circuit in the protection circuit can make the whole system running with the reliability of protection.
差动保护电流回路接线是否正确，可通过相量分析法和带负荷测六角图检验法进行判断。简要介绍这两种方法，并介绍了利用潮流方向验证六角图的方法。
The wiring correctness of differential protection current loop can be verified by using phasor analyzing method and on load test method. These two methods were described.
控制回路由启动、频率跟踪、驱动信号、缺水保护电路组成。
The controlling loop includes start-up circuit, frequency tracking circuit, driving signal circuit, and water lack protecting circuit.
采用优质电子元件组装，主回路设有多重保护；照明开关、喷漆、升温喷漆、烤漆温度、时间设定、故障指示灯。
Control system: lighting switch, spray paint, spray paint of temperature, drying temperature and time setting, emergency stop, limit the warm, failure alarm.
进而提出了基于多回路-有限元耦合数学模型的同步发电机定子单相接地故障三次谐波电压保护方案校验方法。
Furthermore, a checkout method for the third harmonic voltage based protection scheme of stator ground fault in generators is presented based on the verified MLM-FEM coupled model.
保护器的工作电源应与电动机的控制回路电源相同。
The working power supply of the potector shoud be same with the control circuit power supply of the motor.
分析影响复杂控制回路安全的因素，并阐述如何利用软件功能来实现对复杂控制回路的安全保护。
Analyzes the factors influencing the safety of complex control loop, and elaborates how to utilize software function to achieve safety protection of the complex control loop.
由于电弧回路结构不同，双丝间接电弧气体保护焊的焊接过程比单丝焊更加稳定。
Because of the difference of arc circuit, the welding process of twin-wire indirect arc gas shielded welding is more stable than single wire welding.
本文针对换热过程中需要实现高温高压保护和热汇温度控制的问题，提出了一种自保护控温回路重力热管。
A new kind of gravity loop heat pipe which is self-protected and can realize the function of temperature control is presented and studied in this work.
对电动机保护与控制回路电气设计中的有关问题进行了分析。
The problems related to electrical design of motor protection and control loop are analyzed.
该电路具有过热保护、短路保护功能和电流、电压闭环控制回路功能。
The circuit has the function of thermal shutdown, current limiting and closed control loop of current and voltage.
该电路具有过热保护、短路保护功能和电流、电压闭环控制回路功能。
The circuit has the function of thermal shutdown, current limiting and closed control loop of current and voltage.
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