Voltmeter suitable for medium/high-voltage installations, with a surface wave device

US6104181A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Ansgar Müller · Stuttgart, DE
• Reinhard Maier · Herzogenaurach, DE
• Wolf-Eckhart Bulst · Munich, DE
• Thomas Ostertag · Ulm, DE

Key dates

• Filing date: Jun 11, 1998
• Grant date: Aug 15, 2000
• Expiry date: Jun 11, 2018

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R15/26
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Voltmeter for medium/high-voltage devices, which has a surface-wave device (21) as the voltmeter element proper. This surface-wave device is incorporated into an impedance voltage divider (5, 6), of a type known in principle, in such a way that both electrical high-voltage insulation is ensured and power supply problems of the voltmeter element which is at high potential are ruled out.