Method for detecting breakdowns in an electrostatic filter

US4433281A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Helmut Herklotz · Neu-Isenburg, DE
• Gunter Mehler · Frankfurt am Main, DE
• Franz Neulinger · Langen (Hessen), DE
• Helmut Schummer · Heusenstamm, DE
• Horst Daar · Erlangen, DE
• Walter Schmidt · Bellikon, CH
• Heinrich Winkler · Nuremberg, DE

Key dates

• Filing date: Dec 4, 1980
• Grant date: Feb 21, 1984
• Expiry date: Dec 4, 2000

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S323/903
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method for detecting breakdowns in an electrostatic filter in which single measured values of equal phase of successive half waves of the filter voltage and crest values of successive half waves of the primary current are compared with one another and in which the differences of the measured values at which a breakdown signal is delivered are made dependent on the existing filter voltage or the primary current.