RU2013144353A - DEVICE FOR COMPENSATION OF CAPACITIVE CURRENTS WITH SINGLE PHASE CIRCUIT TO THE GROUND IN ELECTRIC NETWORKS WITH INSULATED NEUTRAL - Google Patents
DEVICE FOR COMPENSATION OF CAPACITIVE CURRENTS WITH SINGLE PHASE CIRCUIT TO THE GROUND IN ELECTRIC NETWORKS WITH INSULATED NEUTRAL Download PDFInfo
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- RU2013144353A RU2013144353A RU2013144353/07A RU2013144353A RU2013144353A RU 2013144353 A RU2013144353 A RU 2013144353A RU 2013144353/07 A RU2013144353/07 A RU 2013144353/07A RU 2013144353 A RU2013144353 A RU 2013144353A RU 2013144353 A RU2013144353 A RU 2013144353A
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- coil
- capacitive currents
- earth faults
- phase earth
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Abstract
1. Устройство для компенсации емкостных токов при однофазных замыканиях на землю в электрических сетях с изолированной нейтралью, содержащее три обмотки, каждая из которых размещена на отдельном стержне из магнитного материала, соединенные по схеме «звезда» или «зигзаг», входы которых соединены каждый с соответствующим своим фазным проводником электрической сети, а нейтральная точка соединена со входом четвертой обмотки с переменной индуктивностью, размещенной на четвертом стержне из магнитного материала с воздушными зазорами, выход четвертой обмотки соединен с землей, все четыре стержня соединены ярмами с одной и с другой стороны, отличающееся тем, что ярма, соединяющие стержни первых трех обмоток, состыкованы в виде двух симметричных трехлучевых звезд под углом 120 градусов относительно друг друга, и четвертый стержень соединяет места стыковки ярм.2. Устройство для компенсации емкостных токов при однофазных замыканиях на землю в электрических сетях с изолированной нейтралью по п.1, отличающееся тем, что параллельно четвертой катушке подключено переменное активно-реактивное (индуктивное или емкостное) сопротивление.3. Устройство для компенсации емкостных токов при однофазных замыканиях на землю в электрических сетях с изолированной нейтралью по п.2, отличающееся тем, что четвертая катушка выполнена с отводами, и переменное активно-реактивное сопротивление через коммутационный аппарат подключается параллельно части витков четвертой катушки.4. Устройство для компенсации емкостных токов при однофазных замыканиях на землю в электрических сетях с изолированной нейтралью по п.2, отличающееся тем, что на1. A device for compensating capacitive currents during single-phase earth faults in electrical networks with insulated neutral, containing three windings, each of which is placed on a separate rod of magnetic material, connected by a star or zigzag circuit, the inputs of which are connected each to corresponding to its phase conductor of the electrical network, and the neutral point is connected to the input of the fourth winding with variable inductance, located on the fourth rod of magnetic material with air gaps, output the fourth winding is connected to the ground, all four rods are connected by yokes on one and the other hand, characterized in that the yokes connecting the rods of the first three windings are docked in the form of two symmetric three-beam stars at an angle of 120 degrees relative to each other, and the fourth rod connects the places docking yokes. 2. A device for compensating capacitive currents during single-phase earth faults in electrical networks with an isolated neutral according to claim 1, characterized in that an alternating active-reactive (inductive or capacitive) resistance is connected in parallel with the fourth coil. A device for compensating capacitive currents during single-phase earth faults in electric networks with isolated neutral according to claim 2, characterized in that the fourth coil is made with taps, and the variable active-reactive resistance is connected through a switching device in parallel with part of the turns of the fourth coil. 4. A device for compensating capacitive currents for single-phase earth faults in electrical networks with isolated neutral according to claim 2, characterized in that
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU2013144353/07A RU2549974C2 (en) | 2013-10-02 | 2013-10-02 | Device for compensation of capacitor currents of single-phase short circuits to earth in electric networks with insulated neutral line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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RU2013144353/07A RU2549974C2 (en) | 2013-10-02 | 2013-10-02 | Device for compensation of capacitor currents of single-phase short circuits to earth in electric networks with insulated neutral line |
Publications (2)
Publication Number | Publication Date |
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RU2013144353A true RU2013144353A (en) | 2015-04-10 |
RU2549974C2 RU2549974C2 (en) | 2015-05-10 |
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RU2013144353/07A RU2549974C2 (en) | 2013-10-02 | 2013-10-02 | Device for compensation of capacitor currents of single-phase short circuits to earth in electric networks with insulated neutral line |
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RU (1) | RU2549974C2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2618519C1 (en) * | 2015-12-30 | 2017-05-04 | федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский университет "МЭИ" (ФГБОУ ВО "НИУ "МЭИ") | Method of automatic adjusting compensation of arc suppression reactors controlled by magnifying |
RU2653510C1 (en) * | 2016-12-26 | 2018-05-10 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" | Method for compensation of single-phase short-circuit current |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2911169A1 (en) * | 1979-03-22 | 1980-10-02 | Licentia Gmbh | Multiple network earth compensating system - has earthing coils connected by voltage monitoring circuits and selector to central control unit |
UA67276C2 (en) * | 2003-08-18 | 2006-01-16 | Tetiana Ivanivna Yefimenko | Device for compensating phase capacitive short-circuit currents and limiting internal overvoltages in a high-voltage electric network |
RU127536U1 (en) * | 2012-11-21 | 2013-04-27 | Общество с ограниченной ответственностью "НПП Бреслер" (ООО "НПП Бреслер") | DEVICE FOR AUTOMATIC ADJUSTMENT OF COMPENSATION OF CAPACITIVE CIRCUIT CURRENT CIRCUITS TO EARTH |
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2013
- 2013-10-02 RU RU2013144353/07A patent/RU2549974C2/en active
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