The phenomenon of ferroresonance is of particular concern during capacitor voltage transformer (CVT) or coupling capacitor voltage transformer (CCVT) transients, and can cause noticeable deviation of
Investigation of resonance phenomena in power lines supplying powerful rectifier plants Svetlana Molot1,*, Vasilina Kovalenko, Elena Pylskaya,
Simulation results show that the study analyzes the key influencing factors of ferromagnetic resonance and provides a theoretical basis for the prevention and inhibition of ferromagnetic resonance faults.
Ferroresonance Causing Sustained High Voltage at A De-energized 138 kV Bus: A Case Study Yunfei Wang Ryan Cui Xiaodong Liang A. Jafari I. R. Pordanjani Colin Clark Engineering,
This is known as the harmonic resonance phenomenon that may cause the burning out of a transformer or other devices. So far, harmonic
This paper is discussed about overvoltage phenomenon including causes and effects of overvoltage and overvoltage protection towards power
As a result, the current in the circuit reaches to a very high value. This frequency is known as the resonant frequency of that RLC circuit. The
Abstract. Ferroresonance phenomena lead to damage to electromagnetic measuring voltage transformers and nearby equipment. Damping devices and antiresonance transformers, which are
In view of the 10 kV power grid network, this thesis initially establishes a mathematical model of PT. Then, the ferromagnetic resonance simulation model of PT is established.
Ferroresonant circuits exhibit a highly distorted waveform, and voltage and current at transitions in and out of the saturated mode typically show discontinuities or first-order singularities.
Sensitivity of resonance to voltage supply and load can be determined from the bifurcation diagram. The performance of MOV arresters exposed to
The results show that when eliminating the single-phase ground fault, it is easy to cause the frequency division resonance of the system, and the use of these two measures can effectively
The ferroresonant voltage waveform (VM) oscillates at the same frequency as the driving voltage (VS), which is also one of its components. The wave form''s positive and negative half cycles are generally
The objective of this paper is to provide an overview of ferroresonance phenomena, its modeling aspects, and practical experience in recognizing,
Ferroresonance phenomena in distributing networks with an insulated neutral caused by electromagnetic measuring voltage transformers and connecting cables are studied.
Ferroresonance phenomena are the high amplitude current or voltage waves that occur in energy transmission lines. These high amplitude
Based on this, a ferroresonance model in 10kV isolated neutral electrical system is established, and simulation is completed in ATP-EMTP and carried out simulation experiments. The
Ferroresonance has traditionally been regarded as a “phenomenon” due its unpredictability, our lack of overall understanding, and our inability to precisely
This could a large industrial facility where multiple low voltage substations inject harmonic current in to the medium voltage facility bus. A
Download Citation | Field testing, modelling and analysis of ferroresonance in a high-voltage power system | Catastrophic equipment failures continue to occur today due to
F erroresonance or nonlinear resonance is a type of resonance in electric circuits which occurs when a circuit containing a non-linear inductance is fed from a source with series and parallel capacitance,
Bjørn Gustavsen, Senior Member, IEEE Abstract—Power transformers can fail from dielectric stresses caused by electromagnetic transients. In this paper, we focus on a special phenomenon where
This study conducts a simulated analysis of the ferromagnetic resonance of an ordinary PT and a low magnetic flux density-type PT to provide certain theoretical guidance for the analysis of PT
The investigation of ferroresonance in the radial distribution system and the effect of integrating Distributed Generation (DG) into the distribution
The voltage levels resulted from ferroresonance phenomenon are extremely high. The abnormal switching action and the unexpected conductor
Request PDF | Investigation of Ferroresonance Causing Sustained High Voltage at A De-energized 138 kV Bus: A Case Study | Ferroresonance causes overvoltage and excessive current
Also, Fig. 1 shows the difference between the equivalent resonant and ferroresonance circuits. The ferroresonance circuit incorporate
Ferroresonance causes overvoltage and excessive current flow on potential transformers (PT), which can cause substantial damage to PTs and interrupt power system normal operation. In this paper, a
Contact us for competitive quotes and expert technical support
Get a Quote