DE347621C - Inductive resistance with variable inductance to reduce the earth fault current in electrical distribution systems - Google Patents

Inductive resistance with variable inductance to reduce the earth fault current in electrical distribution systems

Info

Publication number
DE347621C
DE347621C DENDAT347621D DE347621DD DE347621C DE 347621 C DE347621 C DE 347621C DE NDAT347621 D DENDAT347621 D DE NDAT347621D DE 347621D D DE347621D D DE 347621DD DE 347621 C DE347621 C DE 347621C
Authority
DE
Germany
Prior art keywords
induction regulator
fault current
winding
distribution systems
electrical distribution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DENDAT347621D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
Publication date
Application granted granted Critical
Publication of DE347621C publication Critical patent/DE347621C/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/08—Limitation or suppression of earth fault currents, e.g. Petersen coil

Landscapes

  • General Induction Heating (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Control Of Electrical Variables (AREA)

Description

Es ist bekannt, die Induktivität von Drosselspulen dadurch zu regeln, daß man einen in ihren Eisenkreis eingeschalteten Luftspalt seiner Größe nach verändert, oder dadurch, S daß man ihrer Wicklung Windungen zu- oder abschaltet. Eine weitere Art der Regelung, die insbesondere für Drosselspulen zur Verminderung des Erdschlußstromes in elektrischen Verteilungsanlagen praktische VorteileIt is known to regulate the inductance of reactors by having a The size of the air gap inserted in its iron circle is changed, or as a result, S that turns their winding turns on or off. Another type of regulation, in particular for inductors to reduce the earth fault current in electrical Distribution systems practical advantages

ίο bietet, wird durch die Erfindung ermöglicht. Diese besteht darin, daß man in Reihe mit der Erdungsdrosselspule die induzierte Wicklung eines Induktionsreglers schaltet. Je nach der gegenseitigen Stellung von Erreger-ίο offers is made possible by the invention. This consists in placing the induced winding in series with the grounding reactor an induction regulator switches. Depending on the mutual position of the pathogen

wicklung und induzierter Wicklung· des Induktionsreglers ändert sich die Spannung an den Klemmen der Drosselspule und damit die Gesamtinduktivität des aus Drosselspule und Induktionsregler gebildeten induktiven Wider-Standes. winding and induced winding · of the induction regulator the voltage at the terminals of the choke coil changes and thus the total inductance of the choke coil and Induction regulator formed inductive resistance.

Die Schaltung kann praktisch auf verschiedene Weise ausgeführt werden. Beispielsweise kann gemäß Abb. 1 die Erregerwicklung b des Induktionsreglers zur Drosselspule α und der mit dieser in Reihenschaltung liegenden induzierten Wicklung c parallel geschaltet sein. Die Erregerwicklung b kann auch gemäß Abb. ia zur Drosselspule α allein parallel geschaltet sein, oder die Erregerwicklung b kann gemäß Abb. 2 als Reihenwicklung in der Erdleitung liegen, während die Drosselspule α an der induzierten Wicklung c liegt.The circuit can be practically implemented in several ways. For example, according to FIG. 1, the field winding b of the induction regulator can be connected in parallel to the choke coil α and the induced winding c connected in series with it. The excitation winding B can also shown in Fig. IA α to the choke coil may be connected in parallel alone, or the field winding B, according to Fig. 2 as a series winding in the ground line are located, while the choke coil is α c on the induced winding.

Die Einstellung- des Induktionsreglers zwecks Veränderung der Induktivität kann entweder von Hand oder selbsttätig vorgenommen werden. Die selbsttätige Einstellung des Induktionsreglers kann in Abhängigkeit von irgendwelchen Konstanten des Netzes, beispielsweise der Netzkapazität, erfolgen. The setting of the induction regulator for the purpose of changing the inductance can can be done either manually or automatically. The automatic adjustment of the induction regulator can take place as a function of any constants of the network, for example the network capacitance.

Claims (6)

Patent-Ansprüche:Patent Claims: 1. Induktiver Widerstand mit veränderlicher Induktivität zur Verminderung des Erdschlußstromes in elektrischen Verteilungsanlagen, dadurch gekennzeichnet, daß die induzierte Wicklung (c) eines Induktionsreglers und eine Drosselspule (α·) in Reihe geschaltet sind.1. Inductive resistance with variable inductance for reduction of the earth fault current in electrical distribution systems, characterized in that that the induced winding (c) of an induction regulator and a choke coil (α ·) are connected in series. 2. Induktiver Widerstand nach Anspruch i, dadurch gekennzeichnet, daß die Erregerwicklung (&) des Induktionsreglers zur Drosselspule (α) parallel geschaltet ist.2. Inductive resistor according to claim i, characterized in that the The excitation winding (&) of the induction regulator is connected in parallel to the choke coil (α) is. 3. Induktiver Widerstand nach Anspruch i, dadurch gekennzeichnet, daß die Erregerwicklung (b) des Induktionsreglers zum ganzen induktiven Widerstand (c + a) parallel geschaltet ist.3. Inductive resistor according to claim i, characterized in that the excitation winding (b) of the induction regulator is connected in parallel to the whole inductive resistor (c + a). 4. Induktiver Widerstand nach Anspruch i, dadurch gekennzeichnet, daß die Erregerwicklung^) des Induktionsreglers in die Erdleitung eingeschaltet und die induzierte Wicklung (c) an die Drosselspule (a) gelegt ist.4. Inductive resistor according to claim i, characterized in that the excitation winding ^) of the induction regulator switched into the ground line and the induced winding (c) is placed on the choke coil (a) . 5. Induktiver Widerstand nach Anspruch ι oder folgenden, dadurch gekennzeichnet, daß die Einstellung des Induktionsreglers zwecks Veränderung der Induktivität des Widerstandes selbsttätig erfolgt.5. Inductive resistor according to claim ι or the following, characterized in that that the setting of the induction regulator for the purpose of changing the inductance of the resistance takes place automatically. 6. Induktiver Widerstand nach Anspruch 5, ,dadurch gekennzeichnet, daß die Einstellung des Induktionsreglers selbsttätig in Abhängigkeit von der Änderung der Netzkapazität erfolgt.6. Inductive resistor according to claim 5, characterized in that the The induction regulator is set automatically depending on the change in the network capacity. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT347621D Inductive resistance with variable inductance to reduce the earth fault current in electrical distribution systems Expired DE347621C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE347621T

Publications (1)

Publication Number Publication Date
DE347621C true DE347621C (en) 1922-01-23

Family

ID=6256427

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT347621D Expired DE347621C (en) Inductive resistance with variable inductance to reduce the earth fault current in electrical distribution systems

Country Status (1)

Country Link
DE (1) DE347621C (en)

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