Patent · US Active

Methods for detecting an interruption of an active conductor in an ungrounded direct-voltage power supply system

US10530149B2 · kind B2 · utility

0Cited by

13References

18Claims

0Family size

Assignee

Bender GmbH & Co. KG · DE

Inventors

Dieter Hackl · Albach, DE
Burkhard Macht · Hungen, DE

Key dates

Filing date	Jan 3, 2017
Grant date	Jan 7, 2020
Priority date	—
Expiry date	Apr 20, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH02H7/226
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a method for detecting an interruption of an active conductor in an ungrounded direct-voltage power supply system. Five alternative methods are introduced, which are based on determining a current load current, a current total insulation resistance, a current displacement voltage, a current total capacitance or a current total impedance. Each of these methods minimizes the hazard related to accidental touching of two active conductors in an ungrounded direct-voltage power supply system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.