电气主接线.ppt
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当满足指定的操作顺序的情况下，隔离开关能够承受正常的负 荷电流和一定时间内的短路电流。
Disconnector (working definition )device without onload making and breaking capacity.
隔离开关装置没有关合容量和开断容量。
母线的功能
Literal Symbol 文字符号
Graphic Symbol 图形符号
Circuit breakers 断路器
Disconnects or Isolator
隔离开关
Buses 母线
Terminations for lines or transformers
负载或变压器
断路器的功能
Circuit Breaker’s Function
Syllabus 大纲
目的 Aims :
•Understand the use of buses as a means of conveyance of energy. 母线的功能就是传输电能的作用；
•Learn tools for the analysis of buses arrangement. 学会如何分析电气主接线；
•Understand the purpose and application of elements of plants. 理解发电厂中各种电气设备的功能与作用；
•Be able to learn to know what different kinds of buses arrangement’ advantages and disadvantages.
Concept of Bus
In actual substations, the buses are made of aluminum or copper bars or pipes and can be several meters long.
在变电站中，母线是用作成条或棒的铝或铜制成的，一 般有几米或十几米长。
隔离开关是为了维护和检修电器设备造成最小中断而设置的。
A mechanical switching device which, when open complies with the requirements specified for the isolating function. This device can carry currents in normal ci来自百度文库cuit conditions as well as currents in abnormal conditions for a specified duration。
要求掌握各种不同主接线间的优缺点。
•Understand the developing of buses arrangement, etc. 了解不同主接线的发展过程。
The Glance of Substations (1) 变电站一瞥
The Glance of Substations (2) 变电站一瞥
The types of Bus Arrangements
主接线 Bus Arrangements
无母线接线形式 Non Bus Arrangements
有母线接线形式 Bus Arrangements
单元接线 Block Connection
桥形接线 Bridge Scheme
角形接线 Angle
A circuit breaker's function is, like a fuse, to break a circuit path when a predetermined amount of current is passed.
断路器的功能象一个熔断器，当流过预先整定的电流时， 会断开电路。
The glance of substations (3) 变电站一瞥
对主接线的一般要求
The Demands of Bus Arrangements
技术性
Reliability 可靠性 Security 安全性 Flexibility 灵活性
经济性
Economics 经济
主接线的类型基本形式
A circuit breaker is a circuit protection device that will stop current in the circuit if there is a direct short, excessive current, or excessive heat. Unlike a fuse, a circuit breaker is reusable. The circuit breaker does not have to be replaced after it has opened or broken the circuit.
断路器是电路的保护装置，当电路发生直接短路、过流、 过热时会断开电路。不象熔断器，断路器是可以重复使用的。 当断路器断开或切断电路时，不需要重新替换
隔离开关的功能
Disconnect’ Function
Disconnector in order to allow for maintenance and repair with a minimum of interruption.
Information Engineering school of Nanchang University
Chapter 2 第四章
Electrical Main Connection
Of Elements of Power Plants
电气主接线
By Liu Aiguo
Electrical Power System and Its Automation
Connection
其它 Others
单母线接线 Single bus scheme
双母线接线 Double Bus Scheme
一个半断路器线接线 Breaker and a Half Bus scheme
其它 Others
电气主接线的主要元件
Main elements of the main connection
Disconnector (working definition )device without onload making and breaking capacity.
隔离开关装置没有关合容量和开断容量。
母线的功能
Literal Symbol 文字符号
Graphic Symbol 图形符号
Circuit breakers 断路器
Disconnects or Isolator
隔离开关
Buses 母线
Terminations for lines or transformers
负载或变压器
断路器的功能
Circuit Breaker’s Function
Syllabus 大纲
目的 Aims :
•Understand the use of buses as a means of conveyance of energy. 母线的功能就是传输电能的作用；
•Learn tools for the analysis of buses arrangement. 学会如何分析电气主接线；
•Understand the purpose and application of elements of plants. 理解发电厂中各种电气设备的功能与作用；
•Be able to learn to know what different kinds of buses arrangement’ advantages and disadvantages.
Concept of Bus
In actual substations, the buses are made of aluminum or copper bars or pipes and can be several meters long.
在变电站中，母线是用作成条或棒的铝或铜制成的，一 般有几米或十几米长。
隔离开关是为了维护和检修电器设备造成最小中断而设置的。
A mechanical switching device which, when open complies with the requirements specified for the isolating function. This device can carry currents in normal ci来自百度文库cuit conditions as well as currents in abnormal conditions for a specified duration。
要求掌握各种不同主接线间的优缺点。
•Understand the developing of buses arrangement, etc. 了解不同主接线的发展过程。
The Glance of Substations (1) 变电站一瞥
The Glance of Substations (2) 变电站一瞥
The types of Bus Arrangements
主接线 Bus Arrangements
无母线接线形式 Non Bus Arrangements
有母线接线形式 Bus Arrangements
单元接线 Block Connection
桥形接线 Bridge Scheme
角形接线 Angle
A circuit breaker's function is, like a fuse, to break a circuit path when a predetermined amount of current is passed.
断路器的功能象一个熔断器，当流过预先整定的电流时， 会断开电路。
The glance of substations (3) 变电站一瞥
对主接线的一般要求
The Demands of Bus Arrangements
技术性
Reliability 可靠性 Security 安全性 Flexibility 灵活性
经济性
Economics 经济
主接线的类型基本形式
A circuit breaker is a circuit protection device that will stop current in the circuit if there is a direct short, excessive current, or excessive heat. Unlike a fuse, a circuit breaker is reusable. The circuit breaker does not have to be replaced after it has opened or broken the circuit.
断路器是电路的保护装置，当电路发生直接短路、过流、 过热时会断开电路。不象熔断器，断路器是可以重复使用的。 当断路器断开或切断电路时，不需要重新替换
隔离开关的功能
Disconnect’ Function
Disconnector in order to allow for maintenance and repair with a minimum of interruption.
Information Engineering school of Nanchang University
Chapter 2 第四章
Electrical Main Connection
Of Elements of Power Plants
电气主接线
By Liu Aiguo
Electrical Power System and Its Automation
Connection
其它 Others
单母线接线 Single bus scheme
双母线接线 Double Bus Scheme
一个半断路器线接线 Breaker and a Half Bus scheme
其它 Others
电气主接线的主要元件
Main elements of the main connection