翻译（英语） 220KV电网继电保护

220 KV electrified wire nettings succeed electricity protection Being studying protects the main body of a book about that 220 KV electrified wire nettings succeed an electricity. By the knowledge designing that electric system succeeds the relevance special field theory that the electricity protects originally time grasping and firming,know well that electric system succeeds the design step that the electricity protects and designs a technical ability, according to the technical code , choose the ability applying the ability , ability to innovate and autonomous working in deploying the project choosing the type correctness and cultivating self in practice that the electricity protects then and expound and prove. Design the graduation practice being that the two-year college graduate graduates demanding but is on the march according to Chongqing water conservancy electric power occupation Tec originally time. The content being that 220 KV electrified wire nettings succeed allocation and adjusting that the electricity protects , designing that includes the main content designing that this time: The first chapter introductions; Every component main part is parametric among second chapter calculation system; TA , choice and neuter that TV unexpected turn of events is compared to count grounded choice third chapter power lines on the way; Fourth chapter power network short-circuit current calculation; Fifth chapter power network alternates from when then, electricity protection way chooses and adjusting secretly schemes against; Sixth chapter power networks zero order succeeds an electricity protecting way choice and adjusting secretly scheming against; Seventh chapters highly value the choice switching in voluntarily. That the electricity protects the ability that the operation adapting to electric system changes all is limited then since various , the composition protecting the adjusting scheme to succeeding an electricity is unlike protection effect that can have no equal to as a result, how to ascertains a optimum adjusting scheme , will be to be engaged in the go into problem giving the engineers and technicians who protects a job an electric shock then. In short ,succeed electricity protection now that the adjusting having oneself artifice problem, there be the problem succeeding an electricity protecting allocation and choosing a type, to still have the electric system structure and to run a problem. 220 KV high-tension lines mark of each other voltaic differential protection throws the scene experiment transporting front especially , with regard to in the main body of a book , is always to perplex a problem of technician , restrict since circuit both ends is at a distance of, the scene experiment can not go to the lavatory like laboratory.

【标准翻译后的结果】

In this paper, is the relay on the 220KV grid. Through the design of the master and the consolidation of power system relay protection of the relevant theoretical knowledge, be familiar with the design of relay protection of power system design steps and skills, according to technical specifications, select the configuration of relay protection and demonstration of the correctness of selection and training works in practice in their own capabilities, innovation and the ability to work independently.
The design is based on the Chongqing Water Conservancy and Electric Power Vocational Technology College students of the graduation requirements of the design. The main elements of the design of 220KV power system relay protection configuration and tuning, design elements include: Introduction Chapter; computing systems in the second chapter of the main parameters of the various components; power lines on the road in Chapter III TA, TV changed over the choice and the choice of neutral grounding; Chapter IV grid short-circuit current calculation; section of chapter V of electricity network selection phase distance relay with the setting; Chapter VI of zero-sequence power network relay protection options and setting; Chapter VII the choice of automatic reclosing.
Relay to adapt to a variety of changes in the power system's ability to run is limited, therefore, for the relay setting program will be different with different protective effects, how to determine the best setting of a program, it will be engaged in relay protection engineering research. In short, the relay setting both their own skills as well as relay configuration and selection of problems, but also the power system structure and functioning of the problem. In particular, for this article 220KV high-voltage line current differential protection phase put into operation at the scene prior to testing, and technical personnel has been a problem, because lines at both ends of the distance restrictions, on-site laboratory tests can not be as easy as.

Keywords: relay coordination program with the power system structure and operation of

In this paper, is the relay on the 220KV grid. Through the design of the master and the consolidation of power system relay protection of the relevant theoretical knowledge, be familiar with the design of relay protection of power system design steps and skills, according to technical specifications, select the configuration of relay protection and demonstration of the correctness of selection and training works in practice in their own capabilities, innovation and the ability to work independently.
The design is based on the Chongqing Water Conservancy and Electric Power Vocational Technology College students of the graduation requirements of the design. The main elements of the design of 220KV power system relay protection configuration and tuning, design elements include: Introduction Chapter; computing systems in the second chapter of the main parameters of the various components; power lines on the road in Chapter III TA, TV changed over the choice and the choice of neutral grounding; Chapter IV grid short-circuit current calculation; section of chapter V of electricity network selection phase distance relay with the setting; Chapter VI of zero-sequence power network relay protection options and setting; Chapter VII the choice of automatic reclosing.
Relay to adapt to a variety of changes in the power system's ability to run is limited, therefore, for the relay setting program will be different with different protective effects, how to determine the best setting of a program, it will be engaged in relay protection engineering research. In short, the relay setting both their own skills as well as relay configuration and selection of problems, but also the power system structure and functioning of the problem. In particular, for this article 220KV high-voltage line current differential protection phase put into operation at the scene prior to testing, and technical personnel has been a problem, because lines at both ends of the distance restrictions, on-site laboratory tests can not be as easy as.