Industry News
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Dry capacitors and Oil capacitors
Most of the customers who buy power capacitors in the industry now choose dry capacitors. The reason for such a situation is inseparable from the advantages of dry capacitors themselves. Compared with oil capacitors, they have many advantages in terms of product performance, environmental protect...Read more -
Introduction to one of the raw material in film capacitors – base film（polypropylene film）
With the continuous expansion of new energy demand, it is expected that China’s film capacitor market will enter a high growth period again in the next few years. Polypropylene film, the core material of film capacitors, is continuing to expand its supply and demand gap due to the rapid expansion...Read more -
Introduction to the difference between active and reactive power in AC circuits
In an AC circuit, there are two types of electrical power supplied to the load from the power supply: one is active power and the other is reactive power. When the load is resistive load, the power consumed is active power, when the load is capacitive or inductive load, the consumption is reactiv...Read more -
Analysis of film capacitors instead of electrolytic capacitors in DC-Link capacitors（2）
This week we continue with last week’s article. 1.2 Electrolytic capacitors The dielectric used in electrolytic capacitors is aluminum oxide formed by corrosion of aluminum, with a dielectric constant of 8 to 8.5 and a working dielectric strength of about 0.07V/A (1µm=10000A). However, it...Read more -
Analysis of film capacitors instead of electrolytic capacitors in DC-Link capacitors（1）
This week we’re going to analyze the use of film capacitors instead of electrolytic capacitors in DC-link capacitors. This article will be divided into two parts. With the development of new energy industry, variable current technology is commonly used accordingly, and DC-Link capacitors a...Read more -
Winding Technics and Key Technologies of the Film Capacitors（2）
In the week before, we introduced the winding process of film capacitors, and this week I would like to talk about the key technology of film capacitors. 1. Constant tension control technology Due to the need of work efficency, winding is usually at a higher height generally in a few micro...Read more -
Winding Technics and Key Technologies of the Film Capacitors（1）
This week, we’ll have an introduction to the metallized film capacitor winding technics. This article introduces the relevant processes involved in film capacitor winding equipment, and gives a detailed description of the key technologies involved, such as tension control technology, winding cont...Read more -
A Brief Introduction to the Self-healing of Metalized Film Capacitors (2)
In the previous article we focused on one of the two different mechanisms of self-healing in metalised film capacitors: discharge self-healing, also known as high-voltage self-healing. In this article we will look at the other type of self-healing, electrochemical self-healing, also often referre...Read more -
A Brief Introduction to the Self-healing of Metalized Film Capacitors (1)
The biggest benefit of organometallic film capacitors is that they are self-healing, which makes these capacitors one of the fastest growing capacitors today. There are two different mechanisms for self-healing of metalized film capacitors: one is discharge self-healing; the other is electrochemi...Read more -
What is the absorption coefficient of film capacitors? Why is the smaller it is, the better?
What does the absorption coefficient of film capacitors refer to? Is the smaller it is, the better? Before introducing the absorption coefficient of film capacitors, let’s take a look at what is a dielectric, the polarization of a dielectric and the absorption phenomenon of a capacitor. ...Read more -
Notes on the use of metallized film capacitors
A) Metalized film capacitors have electrical characteristics that change depending on the environmental conditions in which they are placed, and the degree of capacity change varies depending on the material of the inductor and the construction of the outer material. B) Noise problem: The noise...Read more -
CRE film Capacitors Used in Power converters
CRE custom-design film capacitors for applying in DC-Link, IGBT snubber, High-Voltage resonance, AC filter, etc.; which is widely used in power electronics, railway signal systems, transport automation system, solar and wind power generator, E-vehicle inverter, power supply converter, welding and...Read more
