DE425556C - Arrangement for measuring high voltages on support or suspension insulators - Google Patents

Arrangement for measuring high voltages on support or suspension insulators

Info

Publication number
DE425556C
DE425556C DEV19983D DEV0019983D DE425556C DE 425556 C DE425556 C DE 425556C DE V19983 D DEV19983 D DE V19983D DE V0019983 D DEV0019983 D DE V0019983D DE 425556 C DE425556 C DE 425556C
Authority
DE
Germany
Prior art keywords
arrangement
high voltages
support
measuring high
suspension insulators
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
DEV19983D
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.)
Voigt and Haeffner AG
Original Assignee
Voigt and Haeffner AG
Publication date
Priority to DEV19983D priority Critical patent/DE425556C/en
Application granted granted Critical
Publication of DE425556C publication Critical patent/DE425556C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Insulators (AREA)

Description

Anordnung zur Messung hoher Spannungen an Stütz- oder Hängeisolatoren. Zur Messung hoher Spannungen an Stütz-oder Hängeisolatoren benutzt man in bekannter Weise, falls die Isolatoren aus mehreren Gliedern bestehen, die Kapazität zwischen zwei Gliedern, oder man verwendet bei nichtunterteilten Isolatoren die mit dem geerdeten Fuß und einem ringförmigen Belag auf der Oberfläche gebildete Kapazität. Diese Anordnung hat den Nachteil, daß die zu Meßzwecken zur Verfügung stehende Energie, z. B. zur Betätigung von Spanntmgswandlern, sehr gering ist. Ferner wird bei unterteilten Isolatoren durch die Anbringung des Spannungsanzeigers der elektrische Sicherheitsgrad stark herabgesetzt, den man zwar durch Hinzufügung eines weiteren Gliedes ausgleichen kann, wodurch aber die Baulänge wesentlich. größer wird. Um nun diese Nachteile zu beseitigen, wird nach vorliegender Erfindung die Fußplatte des Isolators vergrößert und gegen Erde isoliert, so daß sie mit der Erde einen Kondensator bildet. Dieser besitzt, da die Fußplatte zu einer großen Fläche ausgebildet werden kann und ihr Abstand von der Erde gering gewählt wird, eine entsprechend große Kapazität, so daß man trotz verhältnismäßig niedriger Spannung, bedingt durch die Entfernungen von den Hochspannung führenden Teilen, eine ausreichend große Energie zur Spannungsmessung erhält. Die Bauhöhe wird durch diese Anordnung nur unwesentlich geändert, während der Sicherheitsgrad der gleiche bleibt.Arrangement for measuring high voltages on post or suspension insulators. To measure high voltages on support or suspension insulators one uses known Way, if the insulators consist of several members, the capacitance between two links, or with insulators that are not subdivided, the one with the earthed one is used Foot and a ring-shaped coating on the surface formed capacity. This arrangement has the disadvantage that the energy available for measurement purposes, e.g. B. to Actuation of voltage converters, is very low. Furthermore, with subdivided Isolators by attaching the voltage indicator to the electrical safety level greatly reduced, which can be compensated for by adding a further link can, which, however, significantly reduces the overall length. gets bigger. To now these disadvantages To eliminate, the base plate of the insulator is enlarged according to the present invention and isolated from earth so that it forms a capacitor with earth. This possesses, since the base plate can be formed into a large area and you Distance from the earth is chosen to be small, a correspondingly large capacity, so that despite the relatively low tension, due to the distances from the high-voltage parts, sufficient energy for voltage measurement receives. The overall height is only slightly changed by this arrangement, while the level of security remains the same.

Um eine Beeinflussung der auf der isolierten Fußplatte erzeugten kapazitiven Spannung durch die Leitungen der benachbarten Phasen zu verhindern, wird die, Fußplatte mit einem Schutzmantel in Form .einer geerdeten Metallkappe umgeben.In order to influence the capacitive generated on the insulated base plate To prevent tension through the lines of the neighboring phases, the, footplate surrounded by a protective jacket in the form of a grounded metal cap.

Die Abbildung zeigt diese Neuerung. a ist der Stützisolator, b die vergrößerte Fußplatte, die mit der Erde c einen Kondensator darstellt; d ist die Schutzkappe, e das Meßinstrument.The illustration shows this innovation. a is the post insulator, b the enlarged base plate, which represents a capacitor with earth c; d is the protective cap, e the measuring instrument.

Claims (1)

PATENTANSPRÜCHE: i. Anordnung zur Messung hoher Spannungen an Stütz- oder Hängeisolatoren, dadurch gekennzeichnet, daß die Fußplatte des Isolators vergrößert rund gegen Erde isoliert ist, so daß der so gebildete Kondensater eine für Meßzwecke brauchbare Energie ergibt. a. Anordnung nach Ansprach i, dadurch gekennzeichnet, daß die isoliert befestigte Grundplatte des Isolators von einer geerdeten Metallkappe umgeben ist. PATENT CLAIMS: i. Arrangement for measuring high voltages on support or suspension insulators, characterized in that the base plate of the insulator is enlarged around and insulated from earth, so that the condenser thus formed yields an energy which can be used for measurement purposes. a. Arrangement according to spoke i, characterized in that the insulated fixed base plate of the insulator is surrounded by a grounded metal cap.
DEV19983D Arrangement for measuring high voltages on support or suspension insulators Expired DE425556C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV19983D DE425556C (en) Arrangement for measuring high voltages on support or suspension insulators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV19983D DE425556C (en) Arrangement for measuring high voltages on support or suspension insulators

Publications (1)

Publication Number Publication Date
DE425556C true DE425556C (en) 1926-02-20

Family

ID=7578225

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV19983D Expired DE425556C (en) Arrangement for measuring high voltages on support or suspension insulators

Country Status (1)

Country Link
DE (1) DE425556C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3610742A1 (en) * 1986-03-29 1987-10-08 Bbc Brown Boveri & Cie Supporting insulator
DE4010373A1 (en) * 1990-03-30 1991-10-02 Jordan Gmbh Georg Voltage testing arrangement for conducting rails - is for medium to high voltage switching systems and contacts insulator between rail and earth with coupling electrode and rail clamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3610742A1 (en) * 1986-03-29 1987-10-08 Bbc Brown Boveri & Cie Supporting insulator
DE4010373A1 (en) * 1990-03-30 1991-10-02 Jordan Gmbh Georg Voltage testing arrangement for conducting rails - is for medium to high voltage switching systems and contacts insulator between rail and earth with coupling electrode and rail clamp

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