Simulation of an electro magnetic (EM) drive for a fast opening circuit breaker contact

Author(s):  
B. Roodenburg
2013 ◽  
Vol 457-458 ◽  
pp. 1623-1626
Author(s):  
Jing Bo Zhu ◽  
Yong Hua Zhang

In order to solve the problem that the management of water-supply operation is still backward and the phenomenon of water resources wasting is exceedingly serious, this paper introduce some advanced technologies such as computer, frequency transformer, programmable logical controller (PLC) and so on into water-supply network, the constant pressure water supply system is devised to achieve the variable-frequency speed control by making use of the electric controlling system composed of S7-200PLC, MM440 frequency transformer, miniature circuit breaker, AC contactor, thermal relay, DC power supply, miniature electro-magnetic relay, sorts of indicator lights and host command devices.


2010 ◽  
Vol 670 ◽  
pp. 381-390
Author(s):  
Jong Ho Kang ◽  
Hyun Kyo Jung

The motor-spring and hydraulic actuators have long constituted as a mechanism for HGCB, regardless of the fatal disadvantages of the malfunction. Although many attempts have been made to cope with them, there is no alternative to replace this mechanism. This paper presents a new type of the electric actuator, electro-magnetic force driving actuator (EMFA) for high-voltage gas circuit breaker (HGCB) and describes the principle of the optimal design. Auto-Tuning Niching Genetic Algorithm combined with deterministic method (Pattern Search Method) is developed to reduce the number of object function calls and used for the optimal design. Fabrication and experiment were performed in order to prove the applicability for HGCB overall class. In comparing the experiment with simulated data, it is confirmed that analysis of the dynamic characteristics of EMFA is appropriate for design.


2021 ◽  
Vol 2107 (1) ◽  
pp. 012015
Author(s):  
L H Quan ◽  
M Z Hasan ◽  
N S Khalid

Abstract Miniature Circuit Breaker (MCB) is an electro-magnetic device designed to cut off the circuit when an overcurrent occurs. This MCB system is essential in many fields that involved with electric and commonly found in industry, it will protect the electric component in the circuit from short circuit. The Internet of Things (IoT) technology is a new profound technology which will lead to a better and easy lifestyle world. One of the benefits of IoT system is the worker can monitor their work from home. With this new and promising technology, most of the work can be done at home by using mobile phone or a computer. As the title of the project presented, the project developed a microcontroller to monitor the MCB using the technology of the Blynk as the IoT platform. The system will send a message to the user to inform about the trips through a mobile phone by the Blynk application. At the same time, the alternating current (AC) of the MCB is record and graph at the mobile application.


1988 ◽  
Vol 135 (3) ◽  
pp. 219
Author(s):  
G. Bernard ◽  
G. Perrissin ◽  
J. Marzocca

2009 ◽  
Vol 129 (12) ◽  
pp. 915-921 ◽  
Author(s):  
Hideki Ueno ◽  
Takashi Nagamachi ◽  
Masaki Nakamura ◽  
Hiroshi Nakayama ◽  
Kunihiko Kakihana

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