Overview of common organic capacitor materials
1 Paper dielectric capacitor The dielectric constant of capacitor paper is about 2.2. Since it is made of plant cellulose, it is porous and generally contains 20%~35% (volume fraction) [...]
Aluminum electrolytic capacitor voltage and leakage current
1 Voltage and Aluminum Electrolytic Capacitors The voltage indicators of aluminum electrolytic capacitor mainly include: rated DC voltage, rated surge voltage, transient overvoltage and reverse voltage, etc., which will [...]
Principle of aluminum electrolytic capacitors and production
1 Principle of aluminum electrolytic capacitors and implementation method of large capacitance When converting AC into DC, capacitor filtering is usually required to smooth the rectified DC, and a capacitor [...]
AC/DC filter and shunt capacitor device test
The filter and shunt capacitor device test is a project that needs to be carried out after the equipment is newly installed or after the equipment is powered off. [...]
AC and DC filters and shunt capacitor operation
1 Operation of AC filters and parallel capacitors 1.1 Manual switching of filters AC filters and parallel capacitors are the main capacitive reactive compensation equipment in the converter station. [...]
Analysis of capacitor circuit breaker operation overvoltage
1 Circuit breaker operation overvoltage and inrush current The task of the capacitor circuit breaker is to close and close the load current and break the short-circuit fault current to [...]
Analysis of filter capacitor overvoltage protection
1 Analysis of filter capacitor overvoltage protection characteristics The overvoltage research and insulation coordination of AC and DC filters have certain particularities, mainly because a large-capacity capacitor is installed in [...]
Filter and shunt capacitor overvoltage analysis
1 Filters and parallel capacitor overvoltage analysis question During the operation of the DC transmission system, the DC power will change. The DC transmission system can adjust the transmission power at [...]
Capacitor filter protection and fault handling strategies
1 Small group capacitor filter circuit breaker failure protection 1.1 Purpose of protection The purpose of this protection is to trip the "upper level" circuit breaker if the small group [...]
AC filter and shunt capacitor device protection
This article introduces the converter stations with relatively new technology that have been in operation in China. For different DC converter stations, the protection related values and some principles may [...]