Abstracts
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| Datum: | 2007 |
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| Sprache: | English |
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Інститут технічних проблем магнетизму НАН України
2007
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| Schriftenreihe: | Електротехніка і електромеханіка |
| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/142948 |
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| Zitieren: | Abstracts // Електротехніка і електромеханіка. — 2007. — № 6. — С. 78-79. — англ. |
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irk-123456789-1429482018-10-20T01:23:10Z Abstracts 2007 Article Abstracts // Електротехніка і електромеханіка. — 2007. — № 6. — С. 78-79. — англ. 2074-272X http://dspace.nbuv.gov.ua/handle/123456789/142948 en Електротехніка і електромеханіка Інститут технічних проблем магнетизму НАН України |
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Abstracts Електротехніка і електромеханіка |
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Abstracts |
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Abstracts |
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Інститут технічних проблем магнетизму НАН України |
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Abstracts // Електротехніка і електромеханіка. — 2007. — № 6. — С. 78-79. — англ. |
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Електротехніка і електромеханіка |
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2025-07-10T16:07:04Z |
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2025-07-10T16:07:04Z |
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1837276730070401024 |
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78 Електротехніка і Електромеханіка. 2007. №6
Abstracts
Electrical Mashines and Apparatus
Baida E.I. 5
Modeling of short-circuit current
interruption by current-limiting circuit
breakers
The article considers problems of modeling of
short-circuit current interruption by a current-
limiting automatic circuit breaker with an
electrodynamic unit using a mathematical model
developed on the basis of theoretical and
experimental research. It allows modeling electric
circuit opening, calculating Joule integral taking
into account voltaic arc duration, determining the
breaker opening time, and significantly decreasing
volume of full-scale experiments.
Key words – short-circuit current
interruption, current-limiting automatic circuit
breaker, modeling.
Bolyukh V.F., Bolyukh E.G. 9
An inductive-dynamic type striking
electromechanical converter with an
accelerated inductor and an immovable
speedup winding
A concept of an inductive-dynamic type
striking electromechanical converter with an
accelerated inductor and an immovable speedup
winding is presented. A mathematical model of the
converter describing its electromechanical
processes is worked out. Correlations between
geometric parameters of the accelerated armature
and the immovable speedup winding are
determined. It is shown that the introduced
electromechanical converter is characterized by
increased operating efficiency in comparison with
the regular design of the conventional structure.
Key words – inductive-dynamic type
striking electromechanical converter,
mathematical model, electromechanical
processes, geometric parameters.
Vyrovets S.V., Chepelyuk A.A. 15
Design of an electromagnetic system with a
single-position magnetic catch on the basis of
high-coercitivity permanent magnets for
The paper presents results of FEM
computation of an electromagnetic system with a
single-position magnetic catch based on high-
coercitivity permanent magnets. Operability of the
electromagnet is experimentally verified.
Reasonable accuracy of the computations testifies to
acceptability of the computation model.
Key words – electromagnetic system with a
single-position magnetic catch, high-coercitivity
permanent magnets, FEM computation,
experimental verification.
Grishchuk Ju.S., Kuznecov A.I., Grishchuk
A.Ju., Rzevskij A.N. 20
To thermal design of composite-filler fuses
An analytical expression of heat-transfer
factor from the external surface of a fuse-element
is derived to allow determination of the equivalent
heat-transfer factor. Empirical dependence for the
fuse-element module resistance adjusted for pinch-
in resistance is obtained. A thermal design
technique for a quick-break fuse with composite
blowout filler is introduced.
Key words – quick-break composite-filler
fuse, heat-transfer factor, thermal design
technique.
Gurevich V.I. 24
A problem of output relays used in
microprocessor-based protective devices: what
to do?
It is the author’s second publication on
nonconformance of parameters of subminiature
output relays used in microprocessor-based
protective devices to actual operation conditions
and standards. The article suggests adjustment of
the standards and presents specific engineering
solutions to this problem.
Key words – microprocessor relay,
protective relays, switching capacity, inductive
load, arc protection.
Zagirnyak M.V., Usatyuk V.M., Podorozhniy S.V. 30
Calculation of a new separator design for
metallurgical slag processing
A new design of metallurgical slag processing
electromagnetic separator on the basis of a
cylindrical extracting electromagnet is presented.
Its optimum design technique based on 3D field
distribution calculation by means of a space
integral equation method using Radia® modulus is
introduced.
Key words – electromagnetic separator, 3D
field distribution calculation, optimum design.
Klimenko B.V. 35
International Electrical Vocabulary –
Ukrainian prospects
Publication of selected translation from
section 441 - Switchgear, controlgear and fuses –
of International Electrical Dictionary (IED) into
Ukrainian finishes. The Ukrainian for the last part
of this section, namely, section 441-18 – Fuses, is
introduced.
Key words – International Electrical
Dictionary, section 441-18 – Fuses, terms and
definitions, translation into Ukrainian.
Klimenko B.V., Grechko A.M., Eres’ko A.V. 40
An electromagnetic drive with a two-
position magnetic catch for medium-voltage
vacuum circuit breakers
Principle of operation and structural features
of a patented design of an electromagnetic drive
with a two-position magnetic catch for medium-
voltage vacuum circuit breakers is considered.
Key words – medium-voltage vacuum
circuit breaker, electromagnetic drive, two-
position magnetic catch, principle of operation.
Електротехніка і Електромеханіка. 2007. №6 79
Korol E.G. 44
Analysis of methods used at modeling of
the hysteretic loop in ferromagnetic materials
Available methods of analytical description of
hysteretic loop are considered. Advantages and
shortcomings of every method are analyzed.
Choice of the method application of which may
increase accuracy of the hysteretic loop modeling
is substantiated.
Key words – ferromagnetic materials,
hysteretic loop, modeling, analysis.
Lebedev V.A. 48
Estimation of energy consumption at
mechanized consumable-electrode arc welding
The paper considers a number of questions
concerning solving energy-saving problems at
mechanized arc welding and deposition. As
energy-saving technologies, pulsed processes with
specific characteristics are advised to utilize
aiming at obtaining controlled transfer of electrode
metal. It is shown that at controlled transfer of
electrode metal with specific parameters,
electricity consumption can be 20…30 % as little
as that at conventional processes.
Key words – electricity consumption,
energy-saving technologies, controlled transfer
of electrode metal, mechanized arc welding.
Pavlenko T.P. 52
Analysis of cathode surface state on the
basis of statistical solid-state theory
The paper considers the mechanism of lattice
structural components interaction under influence
of electric and magnetic fields, temperature,
thermodynamic processes that specify vacancies
and dislocations creation using the statistical solid-
state theory and taking into account new contact
material features, namely, thermal emission
activity during manufacturing and in actual
operating conditions.
Key words – contact material, lattice
structural components, interaction mechanism,
statistical solid-state theory, analysis.
Tereshin V.N., Bogdanova L.E 56
On operating time of automatic circuit
breakers in case of overload currents
Operating time of automatic breakers in case
of low overload currents is analyzed under
influence of mass brought to the controlling lead
of the thermocouple in a thermal bimetallic tripper
of elements acting according to a particular
mechanism of disconnection.
Key words – automatic breaker, thermal
bimetallic tripping device, thermocouple,
overload current, accelerating force, operating
time.
Electrical Engineering: Theory
Baranov M.I. 59
Heuristic determination of the maximum
number of de Broglie electronic half-waves in a
metallic conductor with conduction current
An approximate relationship based on atomic
and quantum physics laws is introduced to allow
calculating possible maximum number of de
Broglie electronic half-waves in a thin metallic
conductor with direct and alternating (pulse)
conduction current.
Key words – metallic conductor, de Broglie
electronic half-waves, conduction current,
calculation.
Zhemerov G.G., Ilina O.V. 63
Fryze power theory and modern power
theories
Principal disadvantages of Fryze power
theory that appear in transient operation of a
power-supply system are considered in this paper.
Modification of Fryze power theory is given to
allow regarding it as a particular case of a modern
cross-vector power theory.
Key words – instantaneous active power,
instantaneous reactive power, Fryze power
theory, cross vector theory.
High Electrical and Magnetic Field Engineering
Bondarenko A.U., Serikov G.S., Chaplygin E.A. 66
A low-voltage current pulse generator with
a wide frequency range for physical simulation
The circuit schematic and the principle of
operation of a developed low-voltage current pulse
generator are described. The generator is designed
for experimental investigations of inductor systems
intended for manufacturing operations at
magnetic-impulse material processing within a
wide frequency range (1 – 50 kHz).
Key words – low-voltage current pulse
generator, power pack, synchronization
module, operating mode, discharge rate
frequency, matching transformer, shunt,
inductor.
Kravchenko V.I., Petkov A.A. 70
Parametrical synthesis of high-voltage
pulse test devices with capacitive energy storage
In the work, general principles of
parametrical synthesis of high-voltage pulse test
devices and their realization are considered at
selection of discharge circuits elements parameters
with capacitive energy storage.
Key words – high-voltage pulse test devices,
discharge circuit, energy capacitive storage.
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