ES350010A1 - Improvements relating to Capacitive Voltage Transformers - Google Patents

Improvements relating to Capacitive Voltage Transformers

Info

Publication number
ES350010A1
ES350010A1 ES350010A ES350010A ES350010A1 ES 350010 A1 ES350010 A1 ES 350010A1 ES 350010 A ES350010 A ES 350010A ES 350010 A ES350010 A ES 350010A ES 350010 A1 ES350010 A1 ES 350010A1
Authority
ES
Spain
Prior art keywords
oscillations
capacitive voltage
improvements relating
voltage transformers
switch
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES350010A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Micafil AG
Original Assignee
Micafil 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 Micafil AG filed Critical Micafil AG
Publication of ES350010A1 publication Critical patent/ES350010A1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02H9/005—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection avoiding undesired transient conditions
    • H02H9/007—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection avoiding undesired transient conditions avoiding or damping oscillations, e.g. fenoresonance or travelling waves

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

Ferroresonant oscillations in a capacitive voltage transformer 1 are suppressed by the circuit arrangement shown, in which the occurrence of such oscillations triggers a bi-directional semi-conductor switch 4 to connect a damping burden 3 across the intermediate voltage transformer 2, the triggering being effected by a relaxation oscillator which supplies a train of firing pulses to ensure that the switch 4 conducts for the duration of the oscillations. The oscillator comprises capacitors 5, 7, resistors 6, 9 and a voltage-dependent (Shockley) diode 8, the capacitor 5 being connected to a control voltage source 10 for charging when unwanted oscillations occur.
ES350010A 1967-02-06 1968-01-03 Improvements relating to Capacitive Voltage Transformers Expired ES350010A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT111067 1967-02-06

Publications (1)

Publication Number Publication Date
ES350010A1 true ES350010A1 (en) 1970-04-16

Family

ID=3506793

Family Applications (1)

Application Number Title Priority Date Filing Date
ES350010A Expired ES350010A1 (en) 1967-02-06 1968-01-03 Improvements relating to Capacitive Voltage Transformers

Country Status (6)

Country Link
BE (1) BE710262A (en)
CH (1) CH474175A (en)
ES (1) ES350010A1 (en)
FR (1) FR1566342A (en)
GB (1) GB1150865A (en)
NL (1) NL6801636A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL203206B1 (en) * 2003-07-17 2009-09-30 Abb Spo & Lstrok Ka Z Ogranicz Protection system for the medium tension voltage transformers
EP2128950B1 (en) * 2008-05-29 2013-01-16 ABB Research Ltd. Protection system for voltage transformers

Also Published As

Publication number Publication date
GB1150865A (en) 1969-05-07
FR1566342A (en) 1969-05-09
CH474175A (en) 1969-06-15
BE710262A (en) 1968-06-17
NL6801636A (en) 1968-08-07

Similar Documents

Publication Publication Date Title
GB1119993A (en) Improvements in radar camouflage nets
GB997199A (en) Semiconductor switching circuits
ES350010A1 (en) Improvements relating to Capacitive Voltage Transformers
GB1315636A (en) Circuit arrangements for generating a high-voltage spark
GB1046728A (en) Power supply circuits
ES337365A1 (en) Protective system for capacitive voltage transformers
GB908829A (en) Transistor blocking oscillator arrangements
GB1020590A (en) Improvements relating to turn-off arrangements for direct current switching circuits
ES324531A1 (en) Spark ignition systems
GB1074695A (en) An electric welding system
GB1123799A (en) Overvoltage protection devices
GB886497A (en) Improvements in or relating to transistor circuits
GB1079830A (en) Welding control circuit
GB1210372A (en) Improved electric fence installation
SU146391A1 (en) Device for automatic regulation of synchronous generator voltage
GB987192A (en) An arrangement for connecting and disconnecting a load circuit
GB1240481A (en) Electric high tension sources
GB948020A (en) Improvements relating to protective apparatus for pulse electrical discharge devices
ES361058A1 (en) A device suitable for charging a storage battery from an alternating power source
GB939272A (en) Retentive memory circuit
SU383214A1 (en) Ferroresonance DECAD DISTRIBUTOR
GB990069A (en) Improvements in or relating to time delay circuits
ES265809A1 (en) Improvements in or relating to direct voltage stabilisation circuits
GB1089797A (en) Improvements in or relating to electrical pulse generating arrangements
GB880158A (en) Electronic control circuit