FI932940A - SKYDDSANORDNING FOER SKYDDNING AV AVEKTRISKA FOER OEVERSPAENNINGAR I STROEMTILLFOERSELNAET - Google Patents

SKYDDSANORDNING FOER SKYDDNING AV AVEKTRISKA FOER OEVERSPAENNINGAR I STROEMTILLFOERSELNAET Download PDF

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Publication number
FI932940A
FI932940A FI932940A FI932940A FI932940A FI 932940 A FI932940 A FI 932940A FI 932940 A FI932940 A FI 932940A FI 932940 A FI932940 A FI 932940A FI 932940 A FI932940 A FI 932940A
Authority
FI
Finland
Prior art keywords
dissipation
foer
power supply
alternating current
protection arrangement
Prior art date
Application number
FI932940A
Other languages
Finnish (fi)
Other versions
FI932940A0 (en
Inventor
Walter Bosshard
Albert Kaelin
Original Assignee
Meteolabor Ag
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
Application filed by Meteolabor Ag filed Critical Meteolabor Ag
Publication of FI932940A0 publication Critical patent/FI932940A0/en
Publication of FI932940A publication Critical patent/FI932940A/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/025—Disconnection after limiting, e.g. when limiting is not sufficient or for facilitating disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0066—Constructional details of transient suppressor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Cable Accessories (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

The protection arrangement contains (in a known manner) voltage-dependent dissipation elements (5 to 8), preferably metal-oxide varistors, a dissipation element being connected to each line (L1, L2, L3, N) of the power supply network. In the case of the present protection arrangement, the dissipation alternating current is intended to be monitored and a signal is intended to be triggered, in order to disconnect the device (1), which is to be protected, from the power supply network in the event of a limit value being exceeded. For this purpose, the protection arrangement has a measurement transformer (11) for detecting the dissipation alternating current (IA) flowing through the dissipation elements (5 to 8) in total. In addition, an evaluation apparatus (16) is provided which supplies a disconnection signal, which is dependent on the measured variable (IA), when the dissipation alternating current flowing through the dissipation elements after a dissipation surge current caused by an overvoltage has not fallen below a specific limit value. In this way, it is possible for the power supply to be disconnected only when the dissipation elements have become damaged as a result of overloading. <IMAGE>
FI932940A 1992-06-23 1993-06-24 SKYDDSANORDNING FOER SKYDDNING AV AVEKTRISKA FOER OEVERSPAENNINGAR I STROEMTILLFOERSELNAET FI932940A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4220259A DE4220259C2 (en) 1992-06-23 1992-06-23 Protective arrangement for protecting electrical equipment against overvoltages on the power supply network

Publications (2)

Publication Number Publication Date
FI932940A0 FI932940A0 (en) 1993-06-24
FI932940A true FI932940A (en) 1993-12-27

Family

ID=6461471

Family Applications (1)

Application Number Title Priority Date Filing Date
FI932940A FI932940A (en) 1992-06-23 1993-06-24 SKYDDSANORDNING FOER SKYDDNING AV AVEKTRISKA FOER OEVERSPAENNINGAR I STROEMTILLFOERSELNAET

Country Status (4)

Country Link
EP (1) EP0576395B1 (en)
AT (1) ATE136169T1 (en)
DE (2) DE4220259C2 (en)
FI (1) FI932940A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19534273A1 (en) * 1995-09-15 1997-03-20 Schupa Elektro Gmbh & Co Kg Protection device for surge arresters
DE19751482C2 (en) * 1997-11-20 2002-01-17 Phoenix Contact Gmbh & Co Überspannungsableiterschaltung
DE19817971A1 (en) * 1998-04-22 1999-10-28 Armin Weigl Error current protection circuit
DE102010047244A1 (en) 2010-10-04 2012-04-05 Phoenix Contact Gmbh & Co. Kg Surge protector
CN107769175B (en) * 2017-11-29 2024-03-29 西安华桑科技发展有限公司 Method and device for judging overvoltage in power grid
US10886728B2 (en) 2018-07-12 2021-01-05 Ovh Circuit implementing an AC smart fuse for a power distribution unit
DE102018218461B4 (en) * 2018-10-29 2021-03-18 Phoenix Contact Gmbh & Co. Kg Protective ensemble

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1116512A (en) * 1954-12-03 1956-05-08 Const Electr R S Improvements made to current transformers and to assemblies comprising such transformers
FR1460049A (en) * 1965-10-14 1966-06-17 Comp Generale Electricite Surge protection device
FR2549309B1 (en) * 1983-07-13 1985-10-25 Claude Sa PROTECTION DEVICE AGAINST OVERVOLTAGES FOR DOMESTIC OR INDUSTRIAL USE
AT391571B (en) * 1988-07-06 1990-10-25 Biegelmeier Gottfried DISCONNECTING DEVICE FOR OVERVOLTAGE ARRESTERS (ARRESTER DISCONNECTORS, AT-SWITCHES)
CH682526A5 (en) * 1990-10-27 1993-09-30 Abb Patent Gmbh Diverter isolating switch between mains conductors and earth

Also Published As

Publication number Publication date
ATE136169T1 (en) 1996-04-15
DE59302023D1 (en) 1996-05-02
EP0576395A1 (en) 1993-12-29
DE4220259C2 (en) 1994-06-23
EP0576395B1 (en) 1996-03-27
DE4220259A1 (en) 1994-01-05
FI932940A0 (en) 1993-06-24

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