DE425628C - Arrangement for measuring high voltages - Google Patents

Arrangement for measuring high voltages

Info

Publication number
DE425628C
DE425628C DEV19958D DEV0019958D DE425628C DE 425628 C DE425628 C DE 425628C DE V19958 D DEV19958 D DE V19958D DE V0019958 D DEV0019958 D DE V0019958D DE 425628 C DE425628 C DE 425628C
Authority
DE
Germany
Prior art keywords
arrangement
high voltages
measuring high
measuring
bushing
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
DEV19958D
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 DEV19958D priority Critical patent/DE425628C/en
Application granted granted Critical
Publication of DE425628C publication Critical patent/DE425628C/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
    • G01R15/16—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using capacitive devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Transformers For Measuring Instruments (AREA)

Description

Anordnung zur 1VIessung hoher Spannungen. Für die Messung hoher Spannungen an Durchführungsisolatoren sind Anordnungen bekannt, bei denen durch isolierte Befestigung eines Metallzylinders zwischen Isolator und Befestigungsflansch eine kapazitive Spannung erzeugt wird. Diese Anordnung hat aber den Nachteil, daß die erzeugte Spannung für Meßzwecke wenig geeignet ist, da der so entstandene Kondensator stets ein Dielektrikum mit hoher Dielektrizitätskonstante besitzt, also eine geringere Spannung erzeugt. Wendet man dagegen nach vorliegender Erfindung Durchführungsisolatoren an, die an der Befestigungsstelle geteilt sind, und ordnet man den isolierten Metallzylinder, der als der eine Belag des Kondensators anzusehen ist, im Innern des Isolators an, während der zum längeren Zylinder ausgebildete Befestigungsflansch den anderen Belag des Kondensators bildet, so entsteht dadurch eine verhältnismäßig große Kapazität. Ferner ist es möglich, den isolierten Zylinder bis zu einem gewissen Abstand dem Durchführungsbolzen zu nähern, so daß man dadurch auch noch eine höhere Spannung erhält und so die für Meßzwecke zur Verfügung stehende Energie größer wird. Verstärkt wird die kapazitive Spannung dadurch, daß man zwischen den Platten ein Dielektrikum wählt, dessen Konstante kleiner ist als das der Ausgußmasse. Zur Spannungsmessung wird das Instrument, wenn nötig, unter Zwischenschaltuug eines Spannungswandlers an -den isolierten Zylinder und den geerdeten Flansch oder an den ebenso isolierten Innenzylinder einer anderen Durchführung gelegt.Arrangement for measuring high voltages. For measuring high voltages arrangements are known on bushing insulators in which by means of insulated fastening of a metal cylinder between the insulator and the mounting flange, a capacitive one Tension is generated. However, this arrangement has the disadvantage that the voltage generated is not very suitable for measuring purposes, since the resulting capacitor is always a dielectric with a high dielectric constant, i.e. it generates a lower voltage. If, on the other hand, according to the present invention, bushing insulators are used that the fastening point are divided, and one arranges the insulated metal cylinder, which is to be regarded as the one layer of the capacitor, inside the insulator, while the mounting flange, which is designed as a longer cylinder, is the other covering of the capacitor, this creates a relatively large capacitance. It is also possible to use the isolated cylinder up to a certain distance Approach bushing bolts, so that you get a higher tension and so the energy available for measurement purposes is greater. Reinforced the capacitive voltage is created by placing a dielectric between the plates selects whose constant is smaller than that of the pouring compound. For voltage measurement If necessary, the instrument is connected to a voltage converter to the insulated cylinder and the earthed flange or to the equally insulated Inner cylinder placed another implementation.

Diese Anordnung zeigt die Abbildung. a und b sind die Teile des Isolatorgehäuses, c ist der Befestigungsflansch, der a und b - zusammenhält und gleichzeitig als Kondensatorbelag dient. d ist der im Innern des Isolators angeordnete isolierte Metallzylinder, e ist der Durchführungsbolzen, f das Meßinstrument.The illustration shows this arrangement. a and b are the parts of the insulator housing, c is the mounting flange that holds a and b - together and at the same time serves as a capacitor plate. d is the insulated metal cylinder arranged inside the insulator, e is the lead-through bolt, f the measuring instrument.

Claims (1)

PATENT-ANSPRÜcHE: i. Anordnung zur Messung hoher Spannungen bei ausgegossenen, an der Befestigungsstelle geteilten Durchführungen, dadurch gekennzeichnet, daß der zu einem längeren Zylinder ausgebildete, geerdete Befestigungsflansch mit einem im Innern der Durchführung konzentrisch zum Durchführungsbolzen isoliert angeordneten zweiten Metallzylinder eine für Meßzwecke `brauchbare Metallzylinder Spannung .erzeugt. z. Anordnung nach Anspruch r, dadurch gekennzeichnet, daß sich zwischen den beiden Metallzylindern ein Dielektrikum befindet, das eine kleinere Dielektrizitätskonstante besitzt als die Ausgußmasse. PATENT CLAIMS: i. Arrangement for measuring high voltages with poured bushings divided at the fastening point, characterized in that the earthed fastening flange, which is formed into a longer cylinder, and a second metal cylinder arranged in the interior of the bushing and isolated concentrically to the bushing bolt, generates a voltage which can be used for measuring purposes. z. Arrangement according to Claim r, characterized in that there is a dielectric between the two metal cylinders which has a lower dielectric constant than the pouring compound.
DEV19958D Arrangement for measuring high voltages Expired DE425628C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV19958D DE425628C (en) Arrangement for measuring high voltages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV19958D DE425628C (en) Arrangement for measuring high voltages

Publications (1)

Publication Number Publication Date
DE425628C true DE425628C (en) 1926-02-27

Family

ID=7578203

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV19958D Expired DE425628C (en) Arrangement for measuring high voltages

Country Status (1)

Country Link
DE (1) DE425628C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS477612U (en) * 1971-02-19 1972-09-28
DE2155398A1 (en) * 1971-10-22 1973-04-26 Bbc Brown Boveri & Cie METAL ENCLOSED, INSULATING GAS FILLED HIGH VOLTAGE SWITCHGEAR
JPS4964820A (en) * 1973-09-14 1974-06-24
DE2325441A1 (en) * 1973-05-17 1974-11-21 Siemens Ag MEASURING TRANSDUCER FOR INSTALLATION IN A METAL CAPSULE OF A SWITCHGEAR
JPS5116814Y1 (en) * 1973-08-17 1976-05-07
DE3145255A1 (en) * 1981-11-14 1983-05-19 Brown, Boveri & Cie Ag, 6800 Mannheim Voltage measuring device for insulating-material-encapsulated areas in medium-voltage switchgear

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS477612U (en) * 1971-02-19 1972-09-28
DE2155398A1 (en) * 1971-10-22 1973-04-26 Bbc Brown Boveri & Cie METAL ENCLOSED, INSULATING GAS FILLED HIGH VOLTAGE SWITCHGEAR
DE2325441A1 (en) * 1973-05-17 1974-11-21 Siemens Ag MEASURING TRANSDUCER FOR INSTALLATION IN A METAL CAPSULE OF A SWITCHGEAR
JPS5116814Y1 (en) * 1973-08-17 1976-05-07
JPS4964820A (en) * 1973-09-14 1974-06-24
DE3145255A1 (en) * 1981-11-14 1983-05-19 Brown, Boveri & Cie Ag, 6800 Mannheim Voltage measuring device for insulating-material-encapsulated areas in medium-voltage switchgear

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