With the deregulation of the electrical power industry, utilities and service companies are
operating in a changing business environment. High voltage circuit breakers are extremely …

Moving and fixed main and arc contacts used in circuit breakers (CBs) are prone to erosion
with time and usage. Static resistance measurement and dynamic resistance measurement …

High-voltage circuit breakers (CBs) are extremely important components for the function of
power supply system. The need to predict proper function of CB has increased over the …

This paper presents a methodology capable of measuring, processing, and extracting
contact resistance parameters that enable the identification of the contact degradation level …

Dynamic contact resistance measurement (DRM) is an effective technique to evaluate the
contact conditions of high voltage SF 6 circuit breaker. However, the relations between DRM …

Throughout its lifetime, high‐voltage circuit breaker (HVCB) contacts suffer from inevitable
degradation processes, especially during the formation of electric arcs. Highly degraded …

Maintenance and repair of circuit breakers (CBs) due to their protective role in the power
systems is the centre of attention and assessing their condition is tremendously important …

This paper presents the parameters that are required in the monitoring and diagnostic of the
circuit breakers and aspects concerning the dynamic contact resistance. Also, it is presented …

The presence of an electrical contact on a current path always highlights an additional
electrical resistance, called contact resistance R c. The paper shows a method of measuring …

Circuit Breakers (CBs) are critical components in power system for reliability and protection.
To assure their accurate performance, a comprehensive condition assessment is of an …