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

Connecting two polarized capacitors (typically electrolytic capacitors) together requires careful attention to their polarity to ensure they operate correctly and avoid damage. Polarized capacitors have distinct positive and negative terminals, and incorrect connections can lead to damage or even explosions. Here are some guidelines on how to properly connect polarized capacitors:Parallel Connection (Parallel Connection)If you want to connect two polarized capacitors in parallel to increase the

Capacitors of different voltage levels can be used in parallel under certain conditions, but some key factors need to be noted to ensure safe and efficient operation. Here are some details about parallel capacitors with different voltage levels:Parallel possibility Voltage matching: First, the rated voltage of the capacitor should be lower than or equal to the rated voltage of the circuit, especially the direct current container. If the voltage difference is too large, it may cause the capacitor

How to convert single-phase electricity to three-phase electricityTo convert single-phase electricity to three-phase electricity, a frequency converter is usually used to achieve this. The inverter uses electronic devices (such as MOSFET tubes, IGBT, etc.) to achieve the conversion between DC and AC, and outputs different phases or frequencies according to needs to achieve single-phase and three-phase conversion, the process is as follows: Rectifier: The single-phase power supply is first rectif

The number of electrons per second flowing through a wire in a circuit can be calculated from a known current value. Current is measured in amperes (Ampere, A), defined as 1 Coulomb (C) of charge flowing through a cross section of a wire per second. We know that the charge of 1 coulomb is equal to about 6.242 x 10^18 electrons.Calculation formula Current (I) : Current is measured in amperes (A) and represents the amount of charge passing through a cross section of a wire per unit time. Number of

Causes of inability to transmit power using direct current (DC)There are some key differences between direct current (DC) and alternating current (AC) in power transmission, and these differences make DC not suitable for power transmission in some cases. Here are a few main reasons: Lack of voltage conversion capability: Transformers are the core components of alternating current systems, which allow power to be converted between different voltage levels. Because the current direction of direct

The reaction of the capacitor when the inductor leads the voltageWhen the rate of voltage change on the inductor is higher than the rate of current change, the inductor is inductive, and the voltage is ahead of the current. Under such conditions, we discuss the reaction of the capacitor.The phase relationship between voltage and currentIn circuitry, the phase relationship between voltage and current refers to the time difference and Angle difference between them. In an AC circuit, the phase rela

Classified by power supply type Alternating current voltage Dc voltageClassification by waveform Sine wave voltage Square-wave voltage Triangular wave voltage Sawtooth voltageClassification by voltage level Low pressure Medium voltage High tensionClassified by application field Industrial voltage Medical voltage Consumer electronic voltage Military voltageClassification by use Power voltage Illumination voltage Signal voltage Heating voltageClassified by stability or not Stabilized voltage Unreg

Series Capacitors are widely used in power systems, especially in transmission lines to improve the transmission capacity of the system, improve voltage regulation and reduce losses. However, there are several key issues to note when designing and calculating series capacitors:Voltage distribution problemDescriptionWhen multiple capacitors are connected in series, the voltages on each capacitor are not necessarily equal, but are distributed proportionally according to their respective capacitanc

Reading the electrical rating of an electronic device is an important step in understanding the electrical characteristics of the device, which is essential for proper use and safe operation of the device. Electrical ratings usually include rated voltage, rated current, rated power and other parameters. Here's how to read these electrical ratings:View the device label or nameplateMost electronic devices will have an electrical rating labeled on their housing, usually on a label or nameplate on t

For DC Circuits (Using Power and Voltage)In a direct - current (DC) circuit, the power P (in watts), voltage V (in volts), and current (in amperes) are related by the formula P=VIIf we know the power P and voltage V, we can calculate the current using the formula I=P/V. For example, if a DC device has a power rating of 100 watts and is connected to a 20- volt source, then the current I=100/20=5 amperese.In an alternating - current (AC) circuit, we deal with apparent power S (in volt - amperes),