The protection logic assistant analyzing unit distills and opens wave file to reproduce protection logic action process in the fault by analyzing wave time-sequence graph.
数字化保护逻辑分析单元包含保护逻辑记录单元和保护逻辑辅助分析单元。
Protection of business logic assets by shielding from low-level technology change.
通过屏蔽底层技术变更来保护业务逻辑资产。
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。
Compared to conventional software design based on flow chart, the protection software is developed based on relay function module, which leads to the separation of time sequence and logic.
该方法摒弃了传统的基于流程图的设计思路，将软件的时序与逻辑分离，模块性好，结构清晰，软件的开发、维护方便。
The paper mainly discusses the automatic switching of the logic estimation circuit of the drum boiler's water level protection system.
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 introduces some relevant contents about failure protection in regulations and countermeasures, analyzes the startup logic of line failure protection and transformer failure protection.
介绍了有关规程和反措对失灵保护的要求，分析了线路失灵保护和变压器失灵保护的起动逻辑。
The paper adopts the fractal theory to judge the fault types and then USES the microcomputer logic judgement to realize selectivity of protection.
利用分形理论判断故障类型，再利用微机逻辑判断实现保护的选择性。
The article also indicated the structure and feature of the safety logic system from the view of factory-safety protection.
从工厂安全保护的角度分析了安全逻辑系统的结构和特点。
For the accelerator magnet power supply, usually the Programmable logic controller (PLC) is used to server as the controller for logic protection and control.
加速器磁铁电源的逻辑保护和控制一般通过可编程逻辑控制器PLC实现。
A zero-sequence differential protection for transformer is discussed in scheme design and protective logic.
从保护方案设计和保护逻辑两方面详细论述了一种新型的变压器零序差动保护方案。
This paper analysed the causes and proposed a two-grade protection measure. The working program flow chart and logic circuit are designed.
本文分析了原因，提出二级保护的方案，设计了工作程序流程图及逻辑电路。
The CMOS integrated circuit is applied to form the main control logic units. The links of protection realization are expounded in the light of the running characteristics of man-riders.
采用CMOS集成电路完成主控逻辑单元，结合斜井人车的运行特点，对实现保护的各环节进行了综合阐述。
This paper introduces two common ways to implement protection system of steam turbine, one is to fulfil it in Distrubuted Control system and the other is to use Programmable Logic Controller.
介绍了汽轮机保护系统常见的两种实现方式，一是在分散控制系统中实现汽轮机保护系统，二是运用可编程控制器实现汽轮机保护系统。
This paper also introduced the constitution loss of excitation protection, the exportation logic as well as the disposition plan.
文中还介绍了失磁保护的构成、出口逻辑以及配置方案。
To guarantee the hoist safety running, several logic judgment and control methods are used in PLC software, besides hardware protection.
在硬件上除采用各种措施使系统能可靠工作外，在软件上也采用多种逻辑判断和控制的方法，以保证起升的安全。
As for the above-mentioned problems, the research puts forward to turn all circuit protection into negative logic control and has carried out theory analysis and practice.
针对数控设备的限位保护功能有些欠缺，容易发生超程故障等问题，提出采用把所有限位保护电路改为负逻辑控制，并对这一方案进行了理论分析和实践。
To achieve the safe and reliable operation of high power supply in HL-2A Tokamak, an logic control and protection system based on Siemens PLC is applied.
给出了大功率电源控制系统的控制要求、功能和工作原理以及系统PLC硬件构成图和软件流程框图，总结了系统研制中一些实际问题的解决办法。
To achieve the safe and reliable operation of high power supply in HL-2A Tokamak, an logic control and protection system based on Siemens PLC is applied.
给出了大功率电源控制系统的控制要求、功能和工作原理以及系统PLC硬件构成图和软件流程框图，总结了系统研制中一些实际问题的解决办法。
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