circuit breaker 2016 IEEE PAPER
Password Based Circuit Breaker
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Abstract-The electric line man safety system make use of a new concept of password. It is found that fatal electrical accidents to the line man are increasing during the electric line repair due to the lack of communication and coordination between the maintenance staff
Mechanical Characteristics of Vacuum Circuit Breaker: A Simulation Based Experimental Study
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Abstract Electrical industry is with the rapid development. Vacuum circuit breaker, with advantages of good arc resistance, suitable for frequent operation, long electrical service life, high reliability, long maintenance cycle, has been widely used in many applications.
Circuit Breaker Based Feeder Pillar
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Abstract This paper presents a research embodies the design, construction and simulation of a feeder pillar (415V AC) with over current, overload and earth-fault protection. The major reason for this research study is to prevent the constant changing of fuses. It also provides
Breaking Capacity Test of 126kV/2500A/40kA Double Breaks Vacuum Circuit Breaker
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Abstract High-voltage vacuum circuit breakers are intended for breaking the short-circuit current, and the breaking capacity is the major performance indicator. In the paper, the Weil synthetic circuit was built, and by using unit testing method and referring to standard GB/T
Synchronous Control Technology of Vacuum Circuit Breaker: An Exploratory Study
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Abstract Permanent magnetic actuator, for its various advantages such as high motion reliability and time accuracy, lays the foundation for the development of the synchronous control technology of circuit breaker. This paper designs a synchronous controller for the
Transient Recovery Voltages at the Main 132kV Line Bay GIS Circuit Breakerin a Windfarm
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Abstract:This paper presents the results of investigations of the Transient Recovery Voltage (TRV) across the terminals of the main 132kV Line Bay GIS circuit breaker (GIS CB) for Walney 2, second phase of the Walney Offshore Wind Farm. Several simulations were
A Modular Bi-Directional Hybrid Circuit Breaker for Medium and High Voltage DC Networks
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Abstract The development of dc transmission and distribution technologies are gaining traction. With renewable energy being fed to the grid constantly increasing, there is growing interest in development of dc grids. A major hindrance for their development is attributed
High-Voltage Circuit-Breaker Fault Diagnosis Based on Mechanical Vibration Signals
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Abstract In order to guarantee the operation stability of high-voltage circuit-breaker, this paper extracts eigenvector of vibration signals based on mining of characteristic entropy of the wavelet packet obtained under the state of circuit breaker. Besides, the eigenvector of
Trip Coil Signature Measurement and Analysis Techniques for Circuit Breaker
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Abstract:The Condition Based Maintenance (CBM) is a maintenance strategy that uses the actual condition of the asset to decide what maintenance needs to be done. The trip coil signature analysis for circuit breaker offers a cost-effective methodology in fulfilling the
The model of a vacuum circuit breaker in MATLAB software for the analysis of overvoltages and overcurrents in capacitive electrical circuits
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Computational Investigation of Arc Behavior in an Auto-Expansion Circuit Breaker with Gases of SF6 and N2
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Abstract:An electric arc behavior in a full-scale 245 kV auto-expansion circuit breaker with a moving contact has been carried out for two filling materials, SF6 and N2. The computer simulation involves the simultaneous solution of the three conservation equations (mass,
Design and implementation of programmable ultrafast circuit breaker with solid state relay
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Abstract The concept of electronic circuit breaker came into focus realizing that conventional circuit breakers such as MCBs take longer time to trip. Therefore, for sensitive loads it is very important to activate the tripping mechanism at the shortest possible time, preferably
AN OPTICAL STUDY OF CONTACT EROSION IN A HIGH VOLTAGE CIRCUIT BREAKER USING A CHROMATIC METHOD
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ABSTRACT Electrical contacts erosion in high voltage circuit breakers (HVCBs) is one of the factors that adversely affect the interruption performance of the breakers and also their electrical service life [1]. The arc behaviour and the contact erosion caused by the arc
Thermal Recovery Characteristics of a CO2 Mixture Gas Circuit Breaker
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Abstract–Interruption tests were conducted using the same circuit breaker for an initial pressure of SF6 0.5 MPa (gauge pressure) and CO2 mixture 1.0 MPa, 0.8 MPa, and 0.6 MPa. The pressure-rises in the compression and thermal expansion chambers were
INTELLECTUAL CONGESTION CONTROL FRAMEWORK AND STOLEN AUTOMOBILE DETECTION USING CIRCUIT BREAKER FOR TRAFFIC CONTROL
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Abstract:This paper focusing an intellectual traffic control system to allow the vehicle efficiently. Each unique vehicle is equipped with inimitable radio frequency identification (RFID) tag placed at a designed position, which is unfeasible to demolish. Using an RFID
ROLE OF VACUUM GENERATOR CIRCUIT BREAKER IN IMPROVING THE PLANT EFFICIENCYPROTECTING THE GENERATORS UP TO 450 MVA
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ABSTRACT Vacuum interruption technology is the leading technology for the medium voltage range up to 52 kV especially in the distribution circuits. Over the decades, the interrupting capability of the Vacuum Circuit Breakers (VCB) has increased significantly
Study and Application of On-site AC Withstand Voltage Test System to 750kVCircuit Breaker
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Abstract: The standard and time sequence of on-site AC withstand voltage test of 750kV breaker is presented in the paper. Based on series resonant principle, test method and parameters of each equipment in the test system are analyzed. On the basis of that, a
Vacuum circuit breaker
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The aim of the paper is to describe what vacuumcircuit breakeris. It is a high voltage switch in which vacuum is used to extinguish the electric arc. The vacuum switch is designed for
420kV AIS circuit-breaker performance comparison for shunt reactor application
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SUMMARY Circuit-breaker manufacturers develop and produce in general only one circuit- breaker model that is supposed to meet the IEC requirements for all types of applications (line, cable, transformer, capacitor bank, SVC, shunt reactor and short-circuit capability up
A Fault Diagnosis Method of High Voltage Circuit Breaker Based on Moving Contact Motion Trajectory and ELM
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In order to avoid the deficiencies of conventional high voltage circuit breaker mechanical properties detection methods, a new algorithm based on image block matching with diamond search strategy is presented in this paper. The motion of auxiliary mark on the
EFFECT OF BRAKING RESISTOR AND FAULT CURRENT LIMITER ON CIRCUIT BREAKER OPERATION
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ABSTRACT This paper presents a study of Transient Recovery Voltage (TRV) of a Circuit Breaker (CB) connected to transmission line with presence of Braking Resistor (BR). In order to effectively control the transient stability of the synchronous generator during the
Evaluation of High-Voltage Circuit Breaker Performance with Modified Schavemaker Arc Model
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Abstract:High Voltage Circuit Breaker's working base is the electric arc that appears between their contacts when establishing or interrupting the electric current in the circuit. This electric arc is a complex phenomenon where lots of physic interactions take place in
LOW-VOLTAGE CIRCUIT BREAKER SELECTIVITY STUDIES
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Abstract. The article is devoted to the research of low-voltage circuit breaker (CB) series selectivity dependence on short circuit current and the manufacturer. The short circuit experimental tests were provided for three most widely used manufacturers' circuit
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A vacuum circuit breaker with permanent magnetic actuator and electronic control
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ABSTRACT Vacuum circuit-breakers have obtained a high level of performance, reliability and safety. This is mostly owed to the advantages of current interruption in vacuum. However, the design of the mechanical drive, which has already been applied eg in
Modelling of the diffuse arc in a vacuum circuit-breaker
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This Wor'k forms a pwrt. of a research pTogram on vacuum circuit orea'kersHogeschool Eindhoven, op gezag van de rectorProf.dr.ir.PCTvan der LaanTHE DIFFUSE VACUUM ARC General description of the vacuum arc 2. 2 The vacuum arc in the absence of an
Real-time monitoring and assessment of circuit breaker operations for diagnostics and control applications
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Abstract Circuit breakers (CBs) are very important elements in the power system. They are used to switch other equipment in and out of service. Circuit breakers need to be reliable since their incorrect operation can cause major issues with power system protection and
SF6 generator circuit breaker modeling
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Abstract-Generator circuit breakers are located between generators and step-up transformers in power networks and their ratings usually range from 100MVA to 1300MVA. Owing to the potentially high asymmetrical fault levels at relatively low voltage near the
Switching three-phase distribution transformers with a vacuum circuit breaker: Analysis of overvoltages and the protection of the equipment
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I l L L l I l I r it i 6. 7. 8. 9. 10. De boogweerstand in de vacuilimschakelaar is nauwelijks van invloed op de transiénte wederkerende spanning die ontstaat na het afschakelen van kleine inductieve stromen. In the transformer complicated physical processes occur and therefore the
Numerical arc model parameter extraction for SF6 circuit breaker simulations
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Abstract–In recent years some work has been conducted in the area of circuit breakers modeling in order to improve the capability of high voltage circuit breakers through simulations. Most of the research has been concentrated in describing the circuit breaker
The property tax circuit breaker: An introduction and survey of current programs
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Many individuals and families who pay a high share of their income in property taxes are eligible for property tax circuit breakers refunds provided by the state government to those whose property tax payments are deemed too great. Some 18 states deliver roughly
New Control Strategy of Inrush Transient During Transformer Energization at Toulnustouc Hydropower Plant Using a Double-Break 330-kV Circuit Breaker
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Abstract–This paper summarizes the results of an exhaustive investigation of inrush transients during the energization of generator step-up transformer (GSUT) at the Toulnustouc hydropower plant using a double-break 330-kV circuit breaker. The effect of
Prespective Generator Circuit Breaker
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ABSTRACT This paper deals with the essential function of generator circuit breaker in power plant. The aim of the paper is to analyse very demanding current and voltage conditions which are directly influencing the reliability of energy generating process. The
Security-based circuit breaker maintenance management
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Abstract:Circuit breakers play a vital role in maintaining system security since their malfunctioning could result in further component outages and may lead to the insecure operating conditions. This paper proposes a new approach for identifying the most risky
Circuit Breaker Model using Serially Connected 3 Arc Models for EMTP Simulation
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Abstract--This paper shows the simulation of SLF interrupting performance for SF6 gas circuit breaker. From the measurements on 300kV-SF6 gas model circuit breaker, it was shown that the extinction peak voltages were varying with arcing times. But, the current
Study of superconducting fault current limiter model with AC circuit-breaker
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The 2G HTS tape with a critical current 270 A is used as a superconducting nonlinear resistor whereas the high-speed vacuum circuit-breaker is used as a switching device. To study current limiting properties of the HTS tape, the test has been carried out in ac circuit
Risk based maintenance optimization using probabilistic maintenance quantification models of circuit breaker
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New maintenance techniques for circuit breakers are studied in this dissertation by proposing a probabilistic maintenance model and a new methodology to assess circuit breaker condition utilizing its control circuit data. A risk-based decision approach is
Short-circuit capability of generator circuit breaker
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ABSTRACT This paper deals with the essential function of generator circuit breaker in power plant. The aim of the paper is to analyse very demanding current and voltage required capabilities concerned with the short-circuit current which a generator circuit breaker can
A new approach for circuit breaker status identification in generalized state estimation
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Abstract–This paper presents a method for detailed modeling and identification of breaker statuses in generalized state estimation. For each breaker its active and reactive power flows and its status (open or closed) are added as extra continuous state variables. Each
Fast transients overvoltages produced by switching distribution transformers with a vacuum circuit breaker: simulation and testing
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1. Abstract Worldwide many transformer insulation failures have been reported caused by switching operations, while those transformers had previously passed all the standard tests and complied to all quality requirements [1, 2]. These phenomena can occur in both
Circuit breaker operator signature analysis
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SUMMARY Over the years utilities have experienced problems with slow operation, failure to trip or failure to close of circuit breakers. In recent years many of these problems have been traced to faulty lubrication of the circuit breaker operating mechanisms. While
Analysis of modern high voltage circuit breaker failure during shunt reactor switching operations and corrective measures
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ABSTRACT Powerlink Queensland recently experienced a circuit breaker failure during shunt reactor switching operations in the 275kV network. The circuit breaker failed to clear the current, and this resulted in internal destruction of a pole. After internal visual
Reduce the number of outage by introducing circuit breaker in the distribution network, dream or reality
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The use of CBs in the loop, yesterday economically not possible can be now considered because:-current available offers are more adapted to the strict requirements of secondary distribution needs-modern protection relays allow now an adaptation of the existing
On-line condition monitoring system for in-service circuit breaker
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Summary-This work describes the experience obtained in the Circuit Breaker System Monitoring project executed for two Brazilian electric utilities, one of transmission and another of distribution. The project had as main characteristic the use of market available
Circuit breaker switching transients at arc furnace installation
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Abstract:Large number of vacuum circuit breaker switchings in installations supplying arc furnace transformers make these systems especially susceptible to overvoltage transients. This paper studies the role of a vacuum circuit breaker in a local arc furnace installation
Improving the quality of supply in MV distribution network applying modern shuntcircuit-breaker
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ABSTRACT This paper describes the development of the modern phase earthing system. target was reducing the harmful short interruptions to the customers and electricity producers with phase-to-earth faults of an MV system. Neutral isolated MV systems were
Interruption of a dry-type transformer in no-load by a vacuum circuit-breaker
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Abstract This paper describes an investigation of the overvoltages generated during interruption of a dry-type delta-star connected transformer in no-load by a vacuum breaker. Attention is paid to the experimental set-up and the data acquisition system. Only
Stabilizing Exchange Rates with a Tobin-cum-Circuit-Breaker Tax
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The paper deals with the efficacy of a small currency transaction tax (CTT) to curb speculation. It shows that a small transaction tax is sufficient to deter what could be called ordinary speculation providing that the exchange rate remains stable. When speculators
An experience in circuit breaker on-line condition monitoring system design
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Abstract-The experience achieved in the circuit breaker on-line condition monitoring design for one transmission and one distribution Brazilian energy utilities is described. The project's core feature is the use of off-the-shelf monitoring equipments and standard
A chemical puffer circuit breaker without SF6
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ABSTRACT. Conventional power circuit breakers have used the insulating gas sulphur hexafluoride (SF6) at elevated pressures (6 bar and higher) to extinguish fault current arcing. However, SF6 is a known greenhouse gas with a potency many orders of
Impact of new generator circuit-breaker technologies on power plant availability and profitability
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ABSTRACT Today, the use of generator circuit-breakers for the switching of generators at their terminal voltage is widespread because they offer many advantages when compared to the unit connection such as lower first costs, simplified operational procedures and better
Simulation of the 500 kV SF6 circuit breaker cutoff process during the unsuccessful three-phase autoreclosing
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Abstract--The paper presents a study on the electromagnetic transients in 500 kV transmission line equipped with shunt reactors. Conditions of unsuccessful three-phase autoreclosing are discussed in the case when the DC component in current flowing
Vacuum circuit breaker model: application case to motors switching
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Abstract-- In an industrial plant equipped with HV motors, several severe stator failures occurred in spite of the installation of surge arresters. All of these motors were switched with vacuum circuit breakers. The purpose of this paper is to demonstrate the necessity of complementary
Numerical Simulation of an Explosively Driven HVDC Circuit Breaker
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High Voltage Direct Current (HVDC) circuit breakers have to suppress high values of currents at high voltages in absence of current-zero points. This makes the arc interruption more severe than the case of conventional AC networks. For circuit breaking in HVDC
End of the circuit breaker: smart power makes its mark
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One of the newest of these developments involves solidstate power control technology otherwise known as SSPC. This approach to aircraft systems integration replaces circuit breakers and provides much data for load-management functions such as load shedding,
Experimental Considerations for the Dielectric Characteristics of Inhomogeneous High Temperature SF~ 6 Gas in a Gas Circuit Breaker
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The purpose of the present paper is to show the dielectric characteristics of inhomogeneous hot SF6 gas in a dead-tank-type gas circuit breaker (GCB) experimentally. High-temperature and low-density SF6 gas generated during a heavy current interruption is distributed
Analysis of voltage distribution in transformer windings during circuit breakerprestrike
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Abstract-In this work, the circuit breaker prestrike effect that occurs during energizing a distribution transformer is investigated. An experimental test setup that consists of a supply transformer, a vacuum circuit breaker (VCB), a cable and a test transformer is built, and
Comparison of universal circuit breaker arc representation with EMTP built-in model
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Abstract–A preliminary description of a new arc representa-tion has been introduced in [1]. In which, the Modified Mayr (P-t model) arc equations are solved in the Transient Analysis Control System (TACS) field of the Electromagnetic Transient Program (EMTP) and
Transient recovery voltage investigation in the application of 15kV circuit breaker failure
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A bstract Circuit breakers can fail to interrupt fault current when the power system has transient recovery voltage (TRV) characteristics that exceed the rating of the circuit breaker. There were two incidents of failures of outdoor switchgear at a power plant substation. The
Still in search for answers: a critical survey on the circuit breaker regulation
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Abstract Following the 1987 stock market crash, there has been much discussion in policy circles about the use of circuit breakers in financial markets. Proponents argue that circuit breakers reduce overreactions, while skeptics suggest that it harms the price discovery
Numerical study of the arc behavior in an air DC circuit breaker considering turbulence
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Abstract-Arc plasma behavior plays an important role on the performance of the low voltage air DC circuit breakers (DCCB). A 3-D arc model considering the turbulence effect for a large arc chamber of an air DCCB is built. The arc evolution is described in detail by the
Oil circuit breaker diagnostics
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Abstract: Although considered old technology there is still a significant number of oil circuit breakers in operation. Because their operation is critical to the power system, maintenance of these components is crucial. Diagnostic evaluation of oil samples gives valuable
High Voltage Circuit breaker testing with a focus on three phases in one enclosure gas insulated type breakers
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The use of the Epa-method as a means for a quantitative analysis of the arc-circuitinteraction interval seems more appropriate than other methods such as the resistance at current zero
Transients due to multiple prestrike phenomenon when energizing capacitor banks with a vacuum circuit-breaker
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I. INTRODUCTION n utilities it is common the use of shunt capacitor banks to provide voltage support due to the lack of an adequate power transmission system. The size and location of this capacitor banks are usually based on load flow studies, and sometimes the CSE PROJECTS