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

What is a Polyester Capacitor?A polyester capacitor, also known as a film capacitor or PET capacitor (Polyethylene Terephthalate Capacitor), is a type of capacitor that uses polyester material as its dielectric. Polyester capacitors are renowned for their excellent electrical performance, stable temperature characteristics, and long lifespan, making them widely used in various electronic devices.Working Principle of Polyester CapacitorsThe basic structure of a polyester capacitor includes two me

What is a Wet Electrolytic Capacitor?A wet electrolytic capacitor (Wet Electrolytic Capacitor) is a type of capacitor that uses a liquid electrolyte as its dielectric medium. Unlike dry capacitors, wet electrolytic capacitors contain a liquid electrolyte, typically composed of an aqueous solution or organic solvent. This electrolyte not only serves as the dielectric but also participates in electrochemical reactions, enhancing the performance of the capacitor. Wet electrolytic capacitors are wid

The Impact of Adding Filter Capacitors on Voltage Ripple in AC/DC ConvertersIn AC/DC converters, adding filter capacitors has a significant impact on voltage ripple. The primary role of filter capacitors is to smooth the pulsating DC voltage after rectification, reducing the AC components (i.e., ripple) in the output voltage and providing a more stable DC voltage. Below is a detailed explanation:1. What is Voltage Ripple?Voltage Ripple refers to the alternating current (AC) components that remai

The Role of Capacitors in Power TransformersIn power transformers, capacitors (also known as power factor correction capacitors or reactive power compensators) play a crucial role in improving system power factor, enhancing voltage quality, and stabilizing system operation. Below are the specific functions and working principles of capacitors in power transformer systems:1. Improving Power Factor What is Power Factor? Power factor is the ratio of actual consumed active power (kW) to apparent pow

Schematic diagram of circuit breaker blurting operationA:Contact pointB:Lock hookC:haspD:shaftE:Overcurrent releaseF:Connecting rodG\I:upper armatureH:Undervoltage releaseJ:bimetallic stripK:thermal resistance wireL\N:spring

How to Calculate Transformer CapacityCalculating the capacity of a transformer (typically measured in kilovolt-amperes, kVA) is an important task in electrical engineering. The capacity of a transformer determines the maximum power it can transmit, so correctly calculating the capacity is crucial for ensuring the safety and efficiency of the system. Below are the detailed steps and formulas for calculating transformer capacity.1. Determine Basic Parameters of the TransformerRated Voltage (V): Th

Circuit breaker structure diagram

The reason why the size of sparks changes when using different electrodes mainly involves several aspects:1. Material PropertiesElectrodes made of different materials have different electrical conductivity and thermal conductivity. For example, materials such as copper, platinum, and tungsten have different electrical conductivity and thermal conductivity, which can affect the formation and maintenance of the arc, thereby changing the size of the spark.2. Electrode ShapeThe shape of the electrod

How to Maximize the Lifespan of Electrical PanelsExtending the lifespan of electrical panels is crucial for ensuring the stability and safety of power systems. Below are some effective strategies and maintenance practices that can help maximize the lifespan of electrical panels:1. Regular Maintenance and Inspections Preventive Maintenance: Regular preventive maintenance is key to extending the life of electrical panels. It is advisable to develop a detailed maintenance schedule based on the manu

Introduction to High-Voltage Isolators Difference Between High-Voltage Circuit Breakers and Earthing SwitchesHigh-Voltage Circuit Breaker (Circuit Breaker) and Earthing Switch are two different mechanical switching devices, each playing a crucial role in power systems. High-Voltage Circuit Breaker: It is primarily used to indicate whether a circuit is open or closed. The circuit breaker has the capability to interrupt current, allowing it to cut off large currents under live conditions and maint