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 [...]
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 [...]
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 [...]
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 [...]
Filter and parallel capacitor fault and protection configuration AC and DC filters and shunt capacitors are one of the important equipment of the DC transmission system of the converter station. [...]
From the previous chapter, we know that the condition maintenance of equipment is based on safety, reliability, environment, cost, etc. Through equipment status evaluation, risk assessment, and maintenance decision-making, it [...]
1.General Principles of Evaluation for shunt Capacitor Device The basic score, test score, family defect score, and defect score of each device in the AC and DC filters and shunt [...]
1.Introduction to parallel capacitor status evaluation 1.1 Parallel capacitor status evaluation background Before 2008, the AC and DC filters and shunt capacitors of DC converter stations had been inspected once [...]
1.Aging of insulating media and causes of capacitor damage (1) Aging of liquid dielectric insulation. The main manifestations of aging: increased loss, usually accompanied by an increase in trace moisture, [...]
In the DC transmission system, AC filters and shunt capacitors provide reactive power for the DC system and filter out harmonics. DC filters are used to filter out harmonics on [...]