DK0706054T3 - phase comparator - Google Patents

phase comparator

Info

Publication number
DK0706054T3
DK0706054T3 DK95115746T DK95115746T DK0706054T3 DK 0706054 T3 DK0706054 T3 DK 0706054T3 DK 95115746 T DK95115746 T DK 95115746T DK 95115746 T DK95115746 T DK 95115746T DK 0706054 T3 DK0706054 T3 DK 0706054T3
Authority
DK
Denmark
Prior art keywords
voltages
voltage
indicating
zero
threshold
Prior art date
Application number
DK95115746T
Other languages
Danish (da)
Inventor
Werner Hachmann
Stefan Hachmann
Original Assignee
Werner Hachmann
Stefan Hachmann
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6530228&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK0706054(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Werner Hachmann, Stefan Hachmann filed Critical Werner Hachmann
Application granted granted Critical
Publication of DK0706054T3 publication Critical patent/DK0706054T3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
    • G01R25/005—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller, or for passing one of the input signals as output signal

Abstract

The comparator determines the phase angle between a pair of AC voltages in the voltage range between 1 and 52 kV, using a clock generator (60) and a zero transition switch (36,50) indicating at least three zero transitions of the AC voltages relative to the reference clock. The corresponding phase positions of the AC voltages relative to the reference clock are obtained from the zero transitions and used to determine the phase difference between the voltages. A threshold switch (38,52) is operated by each AC voltage, with the time interval for which the threshold is exceeded compared with a reference value for indicating that the voltage is present.
DK95115746T 1994-10-07 1995-10-06 phase comparator DK0706054T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4435905A DE4435905A1 (en) 1994-10-07 1994-10-07 Phase comparator

Publications (1)

Publication Number Publication Date
DK0706054T3 true DK0706054T3 (en) 1999-08-30

Family

ID=6530228

Family Applications (1)

Application Number Title Priority Date Filing Date
DK95115746T DK0706054T3 (en) 1994-10-07 1995-10-06 phase comparator

Country Status (4)

Country Link
EP (1) EP0706054B1 (en)
AT (1) ATE175278T1 (en)
DE (2) DE4435905A1 (en)
DK (1) DK0706054T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2618371A (en) * 2022-05-05 2023-11-08 Tdk Lambda Uk Ltd Switch controller circuit and method for controlling switching

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735250A (en) * 1970-07-08 1973-05-22 Shibaura Electric Comp Fault detecting apparatus for a capacitor type potential divider having an amplifier
US3836854A (en) * 1973-07-02 1974-09-17 Lorain Prod Corp Alarm circuit for monitoring the amplitude of a-c voltages
DE2727800B2 (en) * 1977-06-21 1979-08-02 Vogel & Halke, 2000 Hamburg Circuit arrangement for operation and function error monitoring for LED displays
SU779903A1 (en) * 1978-04-04 1980-11-15 Омский Институт Инженеров Железнодорожного Транспорта Digital phase meter
DE3348056C2 (en) * 1982-10-06 1987-10-29 Takeda Riken Kogyo K.K., Tokio/Tokyo, Jp
DE3407311A1 (en) * 1984-02-24 1985-08-29 Siemens AG, 1000 Berlin und 8000 München CIRCUIT FOR MONITORING A VOLTAGE
DE3502638A1 (en) * 1985-01-26 1986-07-31 MWB Messwandler-Bau AG, 8600 Bamberg METHOD, CIRCUIT AND DEVICE FOR ELIMINATING THE DC VOLTAGE COMPONENT OF A CAPACITIVE AC VOLTAGE DIVIDER
DE4221202A1 (en) * 1992-06-27 1994-01-05 Hermann Berger Optically displaying measured values - using coloured LED arrays with presetting facility for colour and intensity controlled by timing pulse generator
US5378979A (en) * 1992-11-25 1995-01-03 Allen-Bradley Company, Inc. Method and apparatus for efficiently computing symmetric sequence signals in a three phase power system

Also Published As

Publication number Publication date
EP0706054B1 (en) 1998-12-30
EP0706054A2 (en) 1996-04-10
EP0706054A3 (en) 1997-01-29
DE4435905A1 (en) 1996-04-11
ATE175278T1 (en) 1999-01-15
DE59504675D1 (en) 1999-02-11

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