scholarly journals 2D NUMERICAL SIMULATION OF MAGNETIC FIELD IN LOW-VOLTAGE CIRCUIT BREAKER

2020 ◽  
Vol 20 (4) ◽  
pp. 1049-1060
Author(s):  
ELENA OTILIA VIRJOGHE ◽  
MIHAIL FLORIN STAN ◽  
COSMIN COBIANU ◽  
NICOLAE FIDEL
Keyword(s):  
Magnetic Field ◽  
Power Distribution ◽  
Low Voltage ◽  
Physical Phenomenon ◽  
Circuit Breaker ◽  
Ferromagnetic Material ◽  
Electric Arc ◽  
The Finite Element Method ◽  
Splitter Plates ◽  
And Control

Low Voltage Circuit Breakers is used for the switching process in power distribution and control system. This process is accompanied by the occurrence of the electric arc between the fixed and mobile contact pieces of the apparatus. The electric arc is introduced into the quenching chamber formed of ferromagnetic iron splitter plates, divided into short arcs and then the arc may extinguish after passing the current through zero. Behavior of the electric arc in the extinguishing chamber influences the performance of these devices, the ferromagnetic material leading to the improvement of these performances. This article presents the calculation of the magnetic field components in the extinguishing chamber of the low-voltage circuit breaker of the 2000 A, 690 V manufactured by Schneider Electric and to describe the physical phenomenon and mathematical calculation of the electric arc in LVCB. The Ansys Multiphysics program is used to determine the spectrum of magnetic field components. This program is based on the finite element method for solving Maxwell equations.

scholarly journals Design and Testing of a Low Voltage Solid-State Circuit Breaker for a DC Distribution System

Energies ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 338
Author(s):  
Leslie Tracy ◽  
Praveen Kumar Sekhar
Keyword(s):  
Solid State ◽  
Power Distribution ◽  
Distribution System ◽  
Distribution Systems ◽  
Low Voltage ◽  
Circuit Breaker ◽  
Solid State Circuit ◽  
Dc Distribution ◽  
High Side ◽  
Solid State Circuit Breaker

In this study, a low voltage solid-state circuit breaker (SSCB) was implemented for a DC distribution system using commercially available components. The design process of the high-side static switch was enabled through a voltage bias. Detailed functional testing of the current sensor, high-side switch, thermal ratings, analog to digital conversion (ADC) techniques, and response times of the SSCB was evaluated. The designed SSCB was capable of low-end lighting protection applications and tested at 50 V. A 15 A continuous current rating was obtained, and the minimum response time of the SSCB was nearly 290 times faster than that of conventional AC protection methods. The SSCB was implemented to fill the gap where traditional AC protection schemes have failed. DC distribution systems are capable of extreme faults that can destroy sensitive power electronic equipment. However, continued research and development of the SSCB is helping to revolutionize the power industry and change the current power distribution methods to better utilize clean renewable energy systems.

Low-Voltage Electric Arc Reconstruction From Magnetic Field Measurements

2020 ◽  
Vol 69 (6) ◽  
pp. 3750-3760
Author(s):  
Jinlong Dong ◽  
Luca Di Rienzo ◽  
Guogang Zhang ◽  
Youdang Xu ◽  
Yingsan Geng ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Low Voltage ◽  
Field Measurements ◽  
Electric Arc ◽  
Magnetic Field Measurements

scholarly journals Automatic Fault Localization and Isolation in Power Distribution Network by Decision Support Method

2021 ◽  
Vol 18 (4) ◽  
Author(s):  
Satya PRAKASH ◽  
Manoj HANS ◽  
Vikas THORAT
Keyword(s):  
Electricity Market ◽  
Power Distribution ◽  
Low Voltage ◽  
Distribution Network ◽  
Distribution Networks ◽  
Distribution Automation ◽  
Power Distribution Network ◽  
Medium Voltage ◽  
Time Observation ◽  
And Control

The power distribution network has grown complex and vulnerable as it increases its demand. The system's reliability has become a prominent factor for the end-users, although the continuity of supply in the distribution network still remains a challenge. In order to achieve the same distribution, automation came into the picture. The term “Distribution Automation” usually refers to an advanced switching system, which works as a subsystem of the existing network. The purpose of the subsystem is to offer real-time observation and control in distribution networks and electricity market operations. Consequently, the development of an autonomous system for isolating failures and restoring power for the distribution of LV (low voltage)/MV (medium voltage) can be an attractive solution for improving energy facilities' reliability. Advanced management techniques are devices and algorithms used to analyze, diagnose, and predict conditions in a distribution network, as well as to identify and take appropriate corrective actions to eliminate, mitigate, and prevent power outages and power quality problems. To demonstrate the model, we used a PIC16F877, CT microcontroller, and a power supply unit.

scholarly journals Towards an Efficient Arc Simulation Framework

2017 ◽  
Vol 4 (1) ◽  
pp. 79-82 ◽  
Author(s):  
R. Fuchs ◽  
M. Mürmann ◽  
H. Nordborg
Keyword(s):  
Reference Data ◽  
Low Voltage ◽  
Circuit Breaker ◽  
Test Case ◽  
Simulation Framework ◽  
Root Model ◽  
Coupled Solution ◽  
And Control ◽  
Arc Root

Arc simulations require a coupled solution of the flow and electromagnetic equations. Despite of industrial interest, there is no established simulation framework available yet. We assess the usability of STAR-CCM+ for low voltage circuit breaker simulations using a test case of a model arc chamber, since this toolkit allows to define and control the simulation in a single environment. In spite of a partially implemented arc root model, the results agree well with reference data of previous publications.

scholarly journals Experimental Temperature Measurements in Miniature Circuit Breaker

2017 ◽  
Vol 4 (3) ◽  
pp. 265-268
Author(s):  
D. Simek ◽  
D. Pecek
Keyword(s):  
Spectral Data ◽  
Main Part ◽  
Low Voltage ◽  
Circuit Breaker ◽  
Electric Arc ◽  
Experimental Temperature ◽  
Radiation Spectra ◽  
Data Source ◽  
Atomic Lines ◽  
Voltage Switching

Low voltage switching apparatuses efficiency depends on the speed of movement of the switching arc from the contacts to the quenching chamber. The paper is focused on investigation of this movement of an arc. Measurement of radiation spectra of the electric arc burning inside miniature circuit breaker and moving to quenching chamber are presented. Measured radiation spectra contain suitable atomic spectra lines for calculation purposes. The problems connected with the measurements are discussed. The main part of the paper deals with a calculation of temperature of the investigated plasma of the arc. Atomic lines database of National Institute of Standards and Technology was used as a spectral data source for the calculations.

Three-dimensional modelling of electric-arc development in a low-voltage circuit-breaker

2008 ◽  
Vol 51 (19-20) ◽  
pp. 4973-4984 ◽  
Author(s):  
L. Piqueras ◽  
D. Henry ◽  
D. Jeandel ◽  
J. Scott ◽  
J. Wild
Keyword(s):  
Low Voltage ◽  
Circuit Breaker ◽  
Three Dimensional ◽  
Electric Arc
Sign in / Sign up

Export Citation Format

Share Document