scholarly journals Mathematical Analysis of Voltage Dip propagation in CIGRE Low Voltage Distribution Test Network

Whenever a fault occurs at any stage of the power system, the magnitude of voltage and phase angle both are changed. In the distribution system, there are sensitive loads such as digital computers; motor drives, etc are connected with a system. Due to fault conditions, unbalancing in voltage may occur. So it may cause of damage to equipment. Fault in the distribution system may lead to a voltage dip in the system; it is the big problem of power quality. So it more important to understand the power quality and it is also important to analyze voltage dip propagation when different types of faults occur in the system. This research paper summarizes the results from a number of different voltage dips investigations and their verification of mathematical calculations. These investigations involve characterizing the voltage dips performance.

2019 ◽  
Vol 15 (2) ◽  
pp. 40-49
Author(s):  
Ibrahim Al-Kharsan ◽  
Ali Marhoon ◽  
Jawad Mahmood

The power quality nowadays of the low voltage distribution system is vital for the utility and the consumer at the same time. One disturbing issue affected the quality conditions in the radial distribution system is load balancing. This survey paper is looking most the articles that deal with the phase nodal and lateral phase swapping because it is the efficient and direct method to maintain the current and voltage in balance situation, lead to a suitable reduction in the losses and preventing the wrong tripping of the protective relays.


Author(s):  
Giuseppe Carbone ◽  
Marco Ceccarelli ◽  
Christopher Fabrizi ◽  
Pietro Varilone ◽  
Paola Verde

This paper addresses the effects of electric power quality on robotics operation. A general overview is reported to highlight the main characteristics of electric power quality and their effects on a powered system by considering an end-users viewpoint. Then, authors outline the influence of voltage dip effects by focusing at robotic grasping applications. A specific case of study is reported as referring to LARM Hand IV, a three-fingers robotic hand, which has been designed and built at LARM in Cassino. A dedicated test rig has been settled up for generating predefined voltage dips. Experimental tests are carried out for evaluating the effects of different types of voltage dips on the grasping of objects.


2013 ◽  
Vol 133 (4) ◽  
pp. 343-349
Author(s):  
Shunsuke Kawano ◽  
Yasuhiro Hayashi ◽  
Nobuhiko Itaya ◽  
Tomihiro Takano ◽  
Tetsufumi Ono

2014 ◽  
Vol 8 (1) ◽  
pp. 404-411 ◽  
Author(s):  
Guo Rongyan ◽  
Zhang Honghui

As an important electrical safety protection device in low voltage distribution system, residual current protection device is to protect the insulation line leakage fault; the electric shock of the people plays an important role in fault. From the protection characteristics of residual current protective device to points, those can be divided into, residual current protection device for residual pulsating direct current and residual dc, according to the residual sinusoidal alternating current.


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