Results 11 to 20 of about 818 (219)
Energies, 2020 Vacuum circuit breakers are increasingly used as switching apparatus in electric power systems. The vacuum circuit breakers (VCBs) have very good operating properties. VCBs are characterized by specific physical phenomena that affect overvoltage exposure
Marek Florkowski +3 more
doaj +4 more sources
The applications of anisotropic electrodes in vacuum circuit breakers to increase the switching life [PDF]
E3S Web of Conferences, 2021 The article analyzes the disadvantages of the vacuum circuit breaker, the transients that occur during switching, as well as the processes that lead to a decrease in the contact system resource. The simulation of the vacuum circuit breaker electrodes was
Samofalov Yuri +2 more
doaj +2 more sources
Electrical engineering & Electromechanics, 2020 Introduction. Currently, for switching medium voltage circuits, vacuum circuit breakers are widely used, which have good arcing properties and high breaking capacity.
E. I. Baida +4 more
doaj +3 more sources
INVESTIGATION OF MECHANICAL STRESSES IN THE DRIVE SHAFT OF MV VACUUM CIRCUIT BREAKER
Electrical engineering & Electromechanics, 2017 Introduction. In the last 10-15 years a dominant position in the market of medium voltage circuit breakers, vacuum circuit breakers have taken in which as an actuator mono- or bistable actuators with permanent magnets are used.
E. I. Baida, B. V. Klymenko
doaj +4 more sources
Pressure estimation in vacuum circuit breakers [PDF]
IEEE Transactions on Dielectrics and Electrical Insulation, 1995 The pressure of vacuum switching elements after production is checked normally by Penning or magnetron methods (combined electrical and magnetic field). Vacuum in the range of 10-1 to 10-4 Pa can be measured in this way. After assembly into circuit breakers however, these methods are not applicable. HF interruption performance during the make operation
Damstra, G.C. +2 more
openaire +2 more sources
Methods for estimation of the vacuum status in vacuum circuit breakers [PDF]
IEEE Transactions on Dielectrics and Electrical Insulation, 1999 In this paper several methods are described for the estimation of the pressure inside vacuum interrupters which have been in operation for many years. The methods are applicable without demounting the interrupters and use only electrical measuring techniques.
Merck, W.F.H. +3 more
openaire +3 more sources
Analytical multi-body approach for component selection and timing analysis in spring-actuated vacuum circuit breakers [PDF]
Scientific ReportsA vacuum circuit breaker (VCB) operates with a mechanical mechanism that ensures rapid arc quenching, reliable protection, and current interruption in high-voltage electrical systems.
Amir Arsalan Baniasadi +2 more
doaj +2 more sources
AIP AdvancesAiming at the reliability requirements of the permanent magnet repulsion mechanism for vacuum circuit breakers, the finite element numerical analysis model of the electromagnetic force of the permanent magnet repulsion mechanism for the vacuum circuit ...
Yuntao Wang +5 more
doaj +2 more sources
Environmental Compatible Circuit Breaker Technologies [PDF]
, 2021 Recent research and development in the field of high-current circuit breaker technology are devoted to meeting two challenges: the environmental compatibility and new demands on electrical grids caused by the increasing use of renewable energies ...
core +1 more source
AIP Advances, 2023 The DC vacuum circuit breaker plays an important role in the quench protection system of the Comprehensive Research Facility for Fusion Technology (CRAFT) project.
Xingguang Hu +5 more
doaj +1 more source