Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

What is Arc Interruption Theory?Arc Interruption Theory DefinitionArc interruption theory is defined as the process of stopping electrical arcs that occur when circuit contacts open.Methods of Arc InterruptionThere are two main methods: the high resistance method, which increases resistance to zero current, and the low resistance method, which uses the natural zero point of AC current.Restriking VoltageRestriking voltage is the voltage across breaker contacts at the moment an arc is extinguished

What is the Ferranti Effect?Ferranti Effect DefinitionThe Ferranti effect is defined as the increase in voltage at the receiving end of a long transmission line compared to the sending end. This effect is more noticeable when the load is very small or there is no load (open circuit). It can be described as a factor or a percentage increase.In general practice, current flows from higher potential to lower potential to balance the electrical potential difference. Usually, the sending end voltage i

What are ABCD Parameters ?ABCD Parameters DefinitionABCD parameters are used to model transmission lines in a two-port network, linking input and output voltages and currents.ABCD parameters (also known as chain or transmission line parameters) are generalized circuit constants used to help model transmission lines. More specifically, ABCD parameters are used in the two port network representation of a transmission line. The circuit of such a two-port network is shown below:ABCD Parameters of a

What is Admittance?Admittance DefinedAdmittance measures how easily current flows through a circuit and is measured in siemens.Impedance RelationAdmittance is the inverse of impedance, demonstrating opposite functionality in allowing current flow.Admittance is also a complex number as impedance which is having a real part, Conductance (G) and imaginary part, Susceptance (B).(it is negative for capacitive susceptance and positive for inductive susceptance)Admittance ComponentsIt includes conducta

What is Electrical Power System?Power System DefinitionAn electric power system is a network designed to efficiently generate, transmit, and distribute electricity to consumers.An electric power system is defined as a network of electrical components used to supply, transfer, and consume electric power. The supply is done through some form of generation (e.g. a power plant), the transfer is done through a transmission (via a transmission line) and distribution system, and the consumption can be

What is Distortion?Distortion definitionDistortion refers to changes in the signal during transmission, processing or storage that are inconsistent with the original signal.Distortion classificationLinear distortion Amplitude distortion: The amplitude ratio of different frequency components in the signal changes. For example, in audio systems, the amplitude of the high-frequency components is attenuated, which can cause the sound to become dull. Phase distortion: The phase relationship of differ

What is Short Circuit Protection?Short circuit protection definitionShort circuit protection is an important safety measure to prevent damage or fire caused by short circuit in the circuit. Short circuit protection is usually achieved through protective devices in the circuit that are able to quickly cut off the current when a short circuit is detected to protect other components and personnel in the circuit.Working principleThe working principle of short-circuit protection is based on the conce

What is PWM?PWM pulse width modulation definitionPWM pulse width modulation (PWM) is a method to digitally encode analog signal levels. By modulating the width of a series of pulses, the desired analog signal is obtained equivalent.Working principleThe basic principle of PWM technology is to use the digital output of the microprocessor to control the analog circuit. A square wave with a fixed frequency is used as the carrier signal, and the average voltage of the output signal is controlled by c

The development direction of charging pileAs an important supporting facility for new energy vehicles, the development direction of charging piles is directly related to the future development of the new energy automobile industry. According to the latest search results, the development direction of charging piles mainly includes the following aspects:High power fast charge technologyIn order to meet the needs of the market, charging pile technology is also constantly developing in the direction

What is a Charging Pile?Definition of charging pileElectric vehicles (EVs) provide charging services to supplement the battery power of electric vehicles.Charging modeAc charging: Suitable for most electric vehicles, the charging power is relatively low, suitable for long-term charging.Dc charging: The charging power is higher, which can charge electric vehicles faster, and is suitable for quick replenishment of electricity during long distance travel.Main purpose classification of charging pile