A Valve Magnetic System with Increased Operational Sensitivity of Overcurrent Release

—Electromagnetic overcurrent releases have become widespread among electromagnetic devices in control systems and electrical energy distribution when protecting against negative effects of short-circuit currents. They should provide a high speed when the electrical circuit us broken in the emergency...

Full description

Saved in:
Bibliographic Details
Published inRussian electrical engineering Vol. 90; no. 8; pp. 549 - 552
Main Authors Zaitsev, N. Yu, Maksimov, V. M., Petrov, V. N., Svintsov, G. P., Sorokin, N. N.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.08.2019
Springer Nature B.V
Subjects
Air gaps
Approximation
Circuits
Electrical resistivity
Electromagnetic forces
Energy distribution
Engineering
Ferromagnetism
Machines
Magnetic flux
Manufacturing
Overcurrent
Processes
Short circuit currents
overcurrent release
short circuit
modified method of probable magnetic flux path
magnetic systems
circuit breaker
Online AccessGet full text

Cover

More Information
Summary:—Electromagnetic overcurrent releases have become widespread among electromagnetic devices in control systems and electrical energy distribution when protecting against negative effects of short-circuit currents. They should provide a high speed when the electrical circuit us broken in the emergency mode. This can be achieved with a small mass of a moving element and significant values of electromagnetic force. For the purpose of approximate determination of the characteristics, the methods of the theory of circuits are still widely used. By simplifying the structure of the magnetic field model, the conductivity of air gaps between ferromagnetic elements of the magnetic system can be determined with reasonable accuracy using a modified probable magnetic flux path method.
ISSN:1068-3712
1934-8010
DOI:10.3103/S1068371219080108