GB1198460A - A System for Producing a Signal Dependent upon the Asymmetry of a 3-Phase System - Google Patents

A System for Producing a Signal Dependent upon the Asymmetry of a 3-Phase System

Info

Publication number
GB1198460A
GB1198460A GB4591767A GB4591767A GB1198460A GB 1198460 A GB1198460 A GB 1198460A GB 4591767 A GB4591767 A GB 4591767A GB 4591767 A GB4591767 A GB 4591767A GB 1198460 A GB1198460 A GB 1198460A
Authority
GB
United Kingdom
Prior art keywords
asymmetry
pulses
signal dependent
producing
oct
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
GB4591767A
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.)
Glowny Instytut Gornictwa
Original Assignee
Glowny Instytut Gornictwa
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
Priority claimed from PL116867A external-priority patent/PL55132B1/pl
Application filed by Glowny Instytut Gornictwa filed Critical Glowny Instytut Gornictwa
Publication of GB1198460A publication Critical patent/GB1198460A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/16—Measuring asymmetry of polyphase networks
    • 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
    • H02H3/265—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 responsive to phase angle between voltages or between currents
    • 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
    • H02H3/34—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 of a three-phase system
    • H02H3/343—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 of a three-phase system using phase sequence analysers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/153—Arrangements in which a pulse is delivered at the instant when a predetermined characteristic of an input signal is present or at a fixed time interval after this instant

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

1,198,460. Protective arrangements. GLOWNY INSTYTUT GORNICTWA. 6 Oct., 1967 [13 Oct., 1966], No. 45917/61. Heading H2K. For protective or measurement purposes a signal dependent on the percentage asymmetry of a three-phase system is produced by converting the waveforms of the individual phases to rectangular pulses of equal magnitude and of a duration substantially equal to but not greater than one sixth of a cycle so that under symmetrical conditions the pulses do not overlap and no output signal is produced. Under asymmetrical conditions, the output signal is in the form of rectangular pulses having a duration determined by the extent to which the pulses overlap.
GB4591767A 1966-10-13 1967-10-06 A System for Producing a Signal Dependent upon the Asymmetry of a 3-Phase System Expired GB1198460A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL116867A PL55132B1 (en) 1966-10-13

Publications (1)

Publication Number Publication Date
GB1198460A true GB1198460A (en) 1970-07-15

Family

ID=19949540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4591767A Expired GB1198460A (en) 1966-10-13 1967-10-06 A System for Producing a Signal Dependent upon the Asymmetry of a 3-Phase System

Country Status (3)

Country Link
CH (1) CH467457A (en)
FR (1) FR1584219A (en)
GB (1) GB1198460A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3140313A1 (en) * 1981-10-10 1983-04-28 Robert Bosch Gmbh, 7000 Stuttgart METHOD AND DEVICE FOR MONITORING AN ON-LINE NETWORK SYSTEM

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3140313A1 (en) * 1981-10-10 1983-04-28 Robert Bosch Gmbh, 7000 Stuttgart METHOD AND DEVICE FOR MONITORING AN ON-LINE NETWORK SYSTEM

Also Published As

Publication number Publication date
CH467457A (en) 1969-01-15
FR1584219A (en) 1969-12-19

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees