US3763378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage transformer for fully insulated, metal-clad high voltage switching installations
Assignee: Siemens AG
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Filing: 1972-05-16
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Granted: 1973-10-02
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Expires: 1992-05-16
Abstract
Abstract A voltage transformer for fully insulated, metal-clad high voltage switching installations is disclosed comprised of a high and low potential capacitor. The high potential capacitor is composed of a first laminar electrode on the inside of the metallic outer tube of the high voltage switching installation, and a second electrode formed from the high voltage conductor of the installation. A low potential capacitor is connected to the high potential capacitor and has an amplifier connected across the low potential capacitor and terminates in a load. The laminar electrode is preferably formed of a tube which, together with the high voltage conductor, forms a cylindrical capacitor.
Inventors
- 👤 W Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:32
CPC Classifications
H; H01; H01G; H01G2/00; G; G01; G01R; G01R15/00; G01R15/14; G01R15/16
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
93 words
A voltage transformer for fully insulated metal-clad high voltage switching installations comprising a high voltage conductor, an outer tube surrounding said high voltage conductor, a high potential capacitor comprising a first electrode diposed within the interior of said outer tube having an intermediate layer of insulating material between it and the outer tube and a second electrode formed by the high voltage conductor, a low potential capacitor connected between the first electrode of the high potential capacitor and ground, and an amplifier connectd across said low potential capacitor having a load connected thereto.
Claim 2
Dependent Claim
93 words
A voltage transformer for fully insulated metal-clad high voltage switching installations comprising a high voltage conductor, an outer tube surrounding said high voltage conductor, a high potential capacitor comprising a first electrode diposed within the interior of said outer tube having an intermediate layer of insulating material between it and the outer tube and a second electrode formed by the high voltage conductor, a low potential capacitor connected between the first electrode of the high potential capacitor and ground, and an amplifier connectd across said low potential capacitor having a load connected thereto.
Claim 3
Dependent Claim
41 words
A voltage transformer in accordance with claim 1 wherein the first electrode of the high voltage capacitor comprises a tubular electrode disposed within the outer tube and separated therefrom by insulation to form a cylindrical capacitor with the high voltage conductor.
Claim 4
Dependent Claim
34 words
A voltage transformer in accordance with claim 2 wherein the tubular electrode has a pair of guard ring electrodes disposed at the ends of said tubular electrode between saiD electrode and said outer tube.
Claim 5
Dependent Claim
107 words
A voltage transformer for fully insulated metal-clad high voltage switching installations comprising a high voltage conductor, an outer tube surrounding said high voltage conductor to form the high voltage switching station, a current tranformer disposed within the outer tube of the switching station, a high potential capacitor, the first electrode of which is comprised of conductive coatings applied to the inside surface of said current transformer, and said second electrode is formed by the high voltage conductor, a low potential capacitor connected between the first electrode of the high potential capacitor and ground, and an amplifier connected across said low potential capacitor having a load connected thereto.
Claim 6
Dependent Claim
107 words
A voltage transformer for fully insulated metal-clad high voltage switching installations comprising a high voltage conductor, an outer tube surrounding said high voltage conductor to form the high voltage switching station, a current tranformer disposed within the outer tube of the switching station, a high potential capacitor, the first electrode of which is comprised of conductive coatings applied to the inside surface of said current transformer, and said second electrode is formed by the high voltage conductor, a low potential capacitor connected between the first electrode of the high potential capacitor and ground, and an amplifier connected across said low potential capacitor having a load connected thereto.
Claim 7
Dependent Claim
36 words
A voltage tranformer in accordance with claim 1 wherein the low potential capacitor and the amplifier are externally connected to the switching installation to maintain the capacitor and the amplifier at about the same ambient temperature.
Claim 8
Dependent Claim
30 words
A voltage transformer in accordance with claim 1 wherein the amplifier has a high input impedance with negative feedback stabilization of the gain of said amplifier to provide constant gain.
References Cited (Backward Citations)
US3101443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |