Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10530149 | Methods for detecting an interruption of an active conductor in an ungrounded direct-voltage power supply system | Burkhard Macht | 2020-01-07 |
| 10340680 | Method and device for shutting down an installation part exhibiting an insulation fault in an ungrounded power supply system | Oliver Schaefer | 2019-07-02 |
| 10288664 | Methods and devices for detecting a disconnection of a protective conductor connection | Harald Sellner | 2019-05-14 |
| 10151790 | Insulation fault locating system using branch-selective feeding, and selective insulation fault monitoring system and method for determining a cross-connection impedance between two subsystems | — | 2018-12-11 |
| 10126345 | Device and method for insulation monitoring in a power supply system including a high-resistance grounded neutral point | Eckhard Broeckmann, Burkhard Macht | 2018-11-13 |
| 10067517 | Method and devices for extended insulation-fault search using a multifunctional test current | Oliver Schaefer | 2018-09-04 |
| 9929558 | Electrical protective device and method for selective disconnection of a subsystem in case of a second fault in an IT power supply system | — | 2018-03-27 |
| 9632131 | Method for monitoring and measuring an insulation resistance with interference-resistant measuring signal | Eckhard Broeckmann, Burkhard Macht | 2017-04-25 |
| 9157944 | Method and a device for impressing a measuring-signal voltage on a power supply network | Burkhard Macht | 2015-10-13 |
| 9134345 | Method and device for AC/DC sensitive current measurement | — | 2015-09-15 |
| 6392422 | Monitoring insulation and fault current in an A/C current network to provide load shutoff whenever differential current exceeds a certain response value | Michael Kammer, Karl-Hans Kaul | 2002-05-21 |