Description: 这个程序用在电力设备保护上面,是个小电流接地的设备程序,-the procedures used in electrical equipment protection above, is a small current grounding equipment procedures, Platform: |
Size: 252594 |
Author:luyu |
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Description: 这个程序用在电力设备保护上面,是个数字消谐的设备程序,用在通信上面-the procedures used in electrical equipment protection above is a digital elimination of equipment procedures, Communication with the above Platform: |
Size: 252430 |
Author:luyu |
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Description: 这个程序用在电力设备保护上面,是个小电流接地的设备程序,-the procedures used in electrical equipment protection above, is a small current grounding equipment procedures, Platform: |
Size: 251904 |
Author:luyu |
Hits:
Description: 这个程序用在电力设备保护上面,是个数字消谐的设备程序,用在通信上面-the procedures used in electrical equipment protection above is a digital elimination of equipment procedures, Communication with the above Platform: |
Size: 251904 |
Author:luyu |
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Description: 增量旋转编码器选型有哪些注意事项？
应注意三方面的参数：
1． 械安装尺寸，包括定位止口，轴径，安装孔位；电缆出线方式；安装空间体积；工作环
境防护等级是否满足要求。
2． 分辨率，即编码器工作时每圈输出的脉冲数，是否满足设计使用精度要求。
3．电气接口，编码器输出方式常见有推拉输出（F 型HTL 格式），电压输出（E），集电极开路（C，常见C 为NPN 型管输出，C2 为PNP 型管输出），长线驱动器输出。其输出方式应和其控制系统的接口电路相匹配。如何使用增量编码器？-Selection of incremental rotary encoder which note? Should pay attention to three parameters: 1. Armed installation size, including positioning the mouth only, shaft diameter, mounting hole bit cable round way installation space volume work environment meets the requirements of protection rating. 2. Resolution, that is, the work of each encoder output pulse a few laps, whether the use of precision to meet the design requirements. 3. Electrical interface, encoder output has push-pull output common (F-type HTL format), voltage output (E), open collector (C, common C for the NPN-tube output, C2 for the PNP-tube output), long-term drive output. The output should be and its control system interface circuit match. How to use the incremental encoder? Platform: |
Size: 190464 |
Author:hongwei |
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Description: 微机机电保护软件，通过和电脑主机连接可以很好的检测机电设备-Electrical protection of computer software and computer can be a good host connectivity testing electrical and mechanical equipment Platform: |
Size: 4268032 |
Author:DIC |
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Description: 各种防雷的电路，可用在不同电器的电源等部分，进行防雷保护。-A variety of lightning protection circuit which can be used in different parts of electrical power, such as, for lightning protection. Platform: |
Size: 156672 |
Author:胡栋 |
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Description: 关于RS485通信保护的设计论文，包括防雷电部分的设计分析-RS485 communication on the protection of the design papers, including mine electrical part of the design and analysis Platform: |
Size: 15360 |
Author:jiang |
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Description: • To study the overspeed-protection furling mechanism
of the Bergey Wind Turbine and
– Model the furling mechanism (for real-time)
– Effect of aerodynamics, generator, electrical side
• Build a simulation package
• To design an active yaw mechanism for larger
turbines (and improve performance)
– Control Objectives
– Control Laws and Algorithms-• To study the overspeed-protection furling mechanism
of the Bergey Wind Turbine and
– Model the furling mechanism (for real-time)
– Effect of aerodynamics, generator, electrical side
• Build a simulation package
• To design an active yaw mechanism for larger
turbines (and improve performance)
– Control Objectives
– Control Laws and Algorithms Platform: |
Size: 2420736 |
Author:proust |
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Description: 本书在简要介绍时基电路555 ( 556 )工作原理、电路特点的基础上，分二十一大类介绍了Ic555在波形产生、变换、调制、定时、计t、检侧、电源变换、继电保护、保安、游戏机、各种家电、日用电子、医疗、照明、节电节水、公共交通、农刚业应用、除虫害、声光报普、遥控遥侧、通信、工业自动控制、徽机接口技术等多方面的应用技术。全书约800个应用实例，每个图例均配有简要说明和分析。
本书是从事电子技术工程设计人员、家电维修人员、电子爱好者、大中专及职业高中师生的良好工具书。-This book in brief time base circuit 555 (556) works, on the basis of the characteristics of the circuit, sub-categories described Ic555 twenty-one in waveform generation, transformation, modulation, timing, namely, t, inspection side, power transformation, following the electrical protection, security, games, a variety of home appliances, household electronics, medical, lighting, saving water, public transport, agriculture industry, has just applied, in addition to pests, sound and light general newspaper, remote control away from the side, communications, industrial automation , emblem machine interface technology, and many other application technology. Book is about 800 application instances, each equipped with a brief description and analysis of the legend.
This book is engaged in electronics engineering staff, maintenance staff, home appliances, electronics enthusiasts, college and vocational school teachers and students a good tool. Platform: |
Size: 20953088 |
Author:老夏 |
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Description: The controller is typically of the proportional–integral (PI) type that outputs
the desired susceptance signal within the preset limits, as discussed in Chapter
4. A linearizer block converts the susceptance signal into a firing-angle signal.
An operation-mode selector unit is generally used for TCSC protection.
During short-circuit conditions, at which time the current through the metaloxide
varistor (MOV) exceeds a threshold, the TCSC is made to switch to the
bypassed-thyristor mode or the thyristor-switched reactor (TSR) mode. In this
mode, the thyristors conduct fully (j c 1808), reducing both the TCSC voltage
and the current substantially and thereby reducing the stress on the MOV.
During the clearance of faults, the “waiting mode” is implemented when the
capacitors are brought back into the circuit, a dc-voltage offset builds up that
is discharged into this waiting mode.
The steady-state control characteristic-The controller is typically of the proportional–integral (PI) type that outputs
the desired susceptance signal within the preset limits, as discussed in Chapter
4. A linearizer block converts the susceptance signal into a firing-angle signal.
An operation-mode selector unit is generally used for TCSC protection.
During short-circuit conditions, at which time the current through the metaloxide
varistor (MOV) exceeds a threshold, the TCSC is made to switch to the
bypassed-thyristor mode or the thyristor-switched reactor (TSR) mode. In this
mode, the thyristors conduct fully (j c 1808), reducing both the TCSC voltage
and the current substantially and thereby reducing the stress on the MOV.
During the clearance of faults, the “waiting mode” is implemented when the
capacitors are brought back into the circuit, a dc-voltage offset builds up that
is discharged into this waiting mode.
The steady-state control characteristic Platform: |
Size: 3620864 |
Author:iris |
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Description: 仿真纵联差动保护，有一定的学习意义。模拟输电线路的闭锁式距离纵联保护建立 SIMULINK 仿真模型。加深我们对电气工程和 MATLAB 仿真的理解和认识。(The simulation longitudinal differential protection has certain learning significance. The SIMULINK simulation model is established to simulate the closed range longitudinal protection of transmission lines. Deepen our understanding and understanding of electrical engineering and MATLAB simulation.) Platform: |
Size: 49152 |
Author:圈圈- |
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