This paper presents design and development of a power module used in a low voltage DC
hybrid circuit breaker (HCB). The novel power module is rated for 125 A/380 V and can …

Electrical lifespan prediction is one of the key problems for the designers of switching
apparatus. It is of great necessity to develop empirical correlations between the design …

Contact erosion due to an arc discharge is a critical problem particularly for a DC switch or a
DC circuit breaker. Longer duration arc causes higher degradation of their reliability and …

Contact erosion and dielectric strength reduction due to arc discharge are critical problems,
particularly for dc switches and circuit breakers. Long-duration arcs not only cause serious …

This paper presents results of experiments carried out in order to determine surge voltage
withstand of vacuum reed relay which is not given in the catalogue notes. Three MV vacuum …

A high-speed earthing switch (HSES) of a gas-insulated switchgear (GIS) performs a
secondary role in protecting the power system in the event of an accident. After being …

This paper presents the analysis of bidirectional Transient Voltage Suppressor (TVS)
application for limitation of the electric arc energy in a low voltage circuit. The study employs …

This paper presents a hybrid switches based on semiconductors and mechanical switches.
Devices are dedicated to limitation of adverse effect of capacitive type loads start-up …

This paper presents results from performed research on a mitigation of an electric arc in a LV
switch through an application of a time‐controlled separation of contacts of the tested switch …

2 차 아크 전류는 송전선로에서 발생되는 1 차 사고 전류 (혹은 1 차 아크 전류) 차단 이후에
추가적으로 발생되는 사고 전류를 의미한다. 2 차 아크 전류는 주로 1 상 지락 사고 시 …