WO2003105304A1 - Protection de consommateurs d'energie electrique contre les tremblements de terre - Google Patents

Protection de consommateurs d'energie electrique contre les tremblements de terre Download PDF

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Publication number
WO2003105304A1
WO2003105304A1 PCT/GR2003/000017 GR0300017W WO03105304A1 WO 2003105304 A1 WO2003105304 A1 WO 2003105304A1 GR 0300017 W GR0300017 W GR 0300017W WO 03105304 A1 WO03105304 A1 WO 03105304A1
Authority
WO
WIPO (PCT)
Prior art keywords
relay
shock
sensor
earthquake
shock sensor
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.)
Ceased
Application number
PCT/GR2003/000017
Other languages
English (en)
Inventor
Haralampos Gourgiotis
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.)
Individual
Original Assignee
Individual
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 GR20020100264A external-priority patent/GR1004151B/el
Priority claimed from GR20030100125A external-priority patent/GR1004548B/el
Application filed by Individual filed Critical Individual
Priority to AU2003227993A priority Critical patent/AU2003227993A1/en
Publication of WO2003105304A1 publication Critical patent/WO2003105304A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • 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
    • H02H3/334—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 with means to produce an artificial imbalance for other protection or monitoring reasons or remote control

Definitions

  • the present invention could fill the gap of the protection of electric energy consumers from the above mentioned dangers.
  • This invention is referred to protective relay, which in collaboration with a shock sensor places the electric circuit (that it protects), instantly out of operation, in case of a seismic vibration.
  • the protective relay is a device commercially available from various companies of electric material production and could be found under different names: " earth leakage circuit breaker, current operated " or " automatic differential switch “ or “ differential switch against electric shock” or “differential relay”.
  • the relay is placed in the wall panel of the electric installation, protecting from current leakage and electrocution.
  • the shock sensor has two contacts that are linked instantly in case of a vibration. There can be various types of shock sensors depending on the way or the means by which the instant connection of the two contacts occurs.
  • a) a sensor with a constant and an oscillating contact b) a mercury type sensor, c) a sensor with a metal bowl (small metal ball).
  • a mercury type sensor for example: a) a sensor with a constant and an oscillating contact, b) a mercury type sensor, c) a sensor with a metal bowl (small metal ball).
  • a sensor with a constant and an oscillating contact for example: a mercury type sensor, c) a sensor with a metal bowl (small metal ball).
  • shock element K. ⁇ .
  • the novelty of this invention lies in the utilization of a shock sensor which connected with the relay, attributes to the latter earthquake sensitivity.
  • the invention concerns three cases:
  • shock element K. ⁇ .
  • R electric resistance
  • a single device called earthquake sensitive relay This will substantially be a new relay, which in the same wrapping (in its interior), it will also contain a shock sensor that is suitably connected to the auxiliary circuit of the relay, lending to it attributes of earthquake sensitivity, so that the relay provides also protection in case of vibration.
  • C. A relay which in the exterior plastic wrapping has two apertures (female terminals). In order to provide it with attributes of quake sensitivity as well, we place next to it a shock element that has two male terminals in corresponding place, in order that these can adjoin with the female lugs of the relay (P. ⁇ .E.) and thus collaborate for seismic sensitivity.
  • the protective relay constitutes of a magnetic-core ( ⁇ ), two primary windings (Ti) and (Ti'), one secondary winding (T 2 ) that is connected with the electromagnet coil (C).
  • the supply here is single-phase with a voltage of 230 N between phase (L) and neutral ( ⁇ ).
  • the provided electric intensity (I) is finally controlled by the bipolar switch ( ⁇ ). Using a bold line, I have drawn the main circuit (power circuit) through which the intensity (I), required by the consumer of electric power, flows.
  • the thin line denotes the auxiliary circuit of the (P. ⁇ .E.), to which the button TEST is connected as well as the resistance (R) in series.
  • the resistance is placed in series in order that the magnitude of leakage current does not reach high value-levels at the pressing of the button.
  • the required current (I) for the consumer enters coil (Ti) and after it flows from the consumer comes out from coil (Tj ⁇ ).
  • Coil (Ti) causes a magnetic field at the magnetic core (S), equal and opposite with that caused by coil (Ti ') so that finally the magnetic core (S) is not passed by magnetic lines, in conditions of regular operation.
  • the electromagnet (C) is actuated placing the switch ( ⁇ ) out of operation and consequently the consumer without voltage.
  • P. ⁇ .E. the commercially available protective relay
  • the electrocution is accidental current leakage.
  • TEST I connect with two contacts
  • the shock sensor If a seismic vibration happens the sensor will connect (bridge) instantly its contacts. This acts precisely as if we were pressing the button (TEST) so that the switch ( ⁇ ) of the P. ⁇ .E. is put out of operation and the line without voltage.
  • the P. ⁇ .E. has also the attribute of earthquake sensitivity, consequently protecting the appliances against earthquake.
  • the switch ( ⁇ ) that it has been placed in series to the circuit of the shock sensor is found in the facade of P. ⁇ .E. providing the consumer the choice of protection from seismic vibrations or not.
  • the operation of the three-phase P. ⁇ .E. (polar voltage 400 V) is also based on the same principle, with the sensitivity of electromagnet (C) being 30 mA.
  • the three-phase P. ⁇ .E. appears in (fig 2). Here the phases are three (L i, L 2 , L 3 ) and a neutral (N).
  • the total of coil windings (T ⁇ , T 2 , T 3 ) of the three phases on the iron core (S) is equal to the coil winding (T) of the neutral, in order that under regular conditions of operation (without current leakage) the magnetic core ( ⁇ ) is not crossed by magnetic lines. This occurs because the current total of the three phases that enters the consumption is equal to the current that comes out through the neutral. Consequently the magnetic fields at the core are equal and opposite and cancel each other out. Further description is exactly similar with the case of the single-phase P. ⁇ .E. and is not considered necessary to be mentioned. Placing the shock sensor between any phase (from L i, L 2 , L 3 ) and the neutral (N) and in parallel to the button TEST, provides the three phase P. ⁇ .E. also attributes of seismic sensitivity.
  • shock element constitutes a separate (independent) unit, with an exterior button for the switch ( ⁇ ), containing a shock sensor and in series to it, a resistance (R).
  • This device is placed (clicks) in a rail of the electric panel and connected externally, with the P. ⁇ .E., providing seismic sensitivity, in the way that has already been described. Therefore in case of a strong seismic vibration, the contacts of the shock sensor connect instantly and a controlled current leakage is caused from phase (L) (in the entry of the P. ⁇ .E.), to neutral (N) (in the exit of the P. ⁇ .E.), through the shock sensor.
  • I ⁇ 30 mA.
  • I remind that I ⁇ is the minimal leakage current that actuates the differential relay and cuts off power supply.
  • the device of the mercury type shock element (K. ⁇ .) is depicted in its actual dimensions in the attached drawings (fig.5a, fig.5b, fig.6, fig.7).
  • fig. 5a the side aspect of an overcurrent protective breaker is shown, in its actual dimensions, from which the flame proof has been replaced by the resistance (R) and the mercury type vibration sensor (Hg).
  • the sensor has a small inclination (angle ⁇ ) with respect to the horizontal axis.
  • angle ⁇ the angle ⁇ becomes, the more sensitive the sensor is.
  • A In position (A) is found the mechanism of interruption and reconnection of switch (S), of the overcurrent protective breaker.
  • the only difference lies in that, internally there is a mercurial sensor connected in parallel with the button TEST (single- and three- phase P. ⁇ .E.).
  • they will potentially exist two or three shock elements (K. ⁇ ) connected with one end respectively to each one of the three phases (Lj, L 2 , L 3 ), while the other ends will be connected to the neutral.
  • K. ⁇ shock elements
  • the P. ⁇ .E. constitutes one unit and the shock sensor another. These two devices are placed in a rail of the electric panel side by side so that they collaborate proving the P. ⁇ .E. with quake sensitivity, and is manufactured as follows:
  • the P. ⁇ .E. in its left side has two female terminals (apertures) that are internally connected in parallel with the button TEST.
  • the shock sensor has externally, in the right side, two male terminals; so as to be connected to the female terminals of the P. ⁇ .E.
  • the male terminals are internally connected to the ends of the sensor (shock sensor). Due to their connection, the P. ⁇ .E. acquires earthquake-sensitivity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

La présente invention concerne un dispositif appelé élément anti-décharge électrique (K. S.), dont l'apparence extérieure est celle d'un interrupteur de protection contre la surintensité conventionnel (table), contenant un détecteur de décharge électrique et une résistance (R) (fig. 5a, fig. 5b, fig. 6). Ledit dispositif est mis en place dans le panneau électrique et est connecté au relais anti-décharge électrique (fig. 2) de sorte que, au cas où elle serait mise hors de fonctionnement en raison d'un tremblement de terre, l'installation électrique est protégée du feu ou de l'explosion. En plus du dispositif décrit ci-dessus capable de coopérer avec des relais disponibles dans le commerce, l'invention a aussi pour objet: a) le remplacement du relais existant par un nouveau qui comprend un (ou plusieurs) détecteur(s) de décharge électrique ayant des attributs supplémentaires de sensibilité aux tremblements de terre; ou b) la collaboration de deux dispositifs, c'est-à-dire un nouveau relais et un détecteur de décharge électrique, qui rend possible une connexion latérale, donnant ainsi au relais l'attribut de sensibilité électrique. Les avantages principaux de cette invention sont la fiabilité, les coûts limités, et la facilité d'installation.
PCT/GR2003/000017 2002-06-05 2003-05-29 Protection de consommateurs d'energie electrique contre les tremblements de terre Ceased WO2003105304A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003227993A AU2003227993A1 (en) 2002-06-05 2003-05-29 Protection of electric energy consumers against earthquakes

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GR20020100264 2002-06-05
GR20020100264A GR1004151B (el) 2002-06-05 2002-06-05 Μεθοδος προστασιας καταναλωτων ηλεκτρικης ενεργειας εναντι σεισμου, με κραδασμικο στοιχειο και ρελε διαφυγης εντασης ή με σεισμοευαισθητο ρελε διαφυγης εντασης
GR20030100125A GR1004548B (el) 2003-03-14 2003-03-14 Διαταξεις προστασιας καταναλωτων ηλεκτρικης ενεργειας εναντι σεισμου, με κραδασμικο στοιχειο και διαφορικο ρελε (ρελε διαφυγης εντασης) ή με σεισμοευαισθητο διαφορικο ρελε
GR20030100125 2003-03-14

Publications (1)

Publication Number Publication Date
WO2003105304A1 true WO2003105304A1 (fr) 2003-12-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GR2003/000017 Ceased WO2003105304A1 (fr) 2002-06-05 2003-05-29 Protection de consommateurs d'energie electrique contre les tremblements de terre

Country Status (2)

Country Link
AU (1) AU2003227993A1 (fr)
WO (1) WO2003105304A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018130017A (ja) * 2018-02-19 2018-08-16 テンパール工業株式会社 差込接続ユニット
JP2019134680A (ja) * 2019-05-16 2019-08-08 テンパール工業株式会社 差込接続ユニット

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4493066A (en) * 1983-06-10 1985-01-08 Susumu Ubukata Seismosensitive device
US5173831A (en) * 1991-08-19 1992-12-22 Sammartano Arthur J Neutral line circuit interrupter
JPH09247846A (ja) * 1996-03-05 1997-09-19 Osaka City 地震感知式電源遮断装置
JPH09327119A (ja) * 1996-06-07 1997-12-16 Nitto Kogyo Kk 異常時の電流遮断装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4493066A (en) * 1983-06-10 1985-01-08 Susumu Ubukata Seismosensitive device
US5173831A (en) * 1991-08-19 1992-12-22 Sammartano Arthur J Neutral line circuit interrupter
JPH09247846A (ja) * 1996-03-05 1997-09-19 Osaka City 地震感知式電源遮断装置
JPH09327119A (ja) * 1996-06-07 1997-12-16 Nitto Kogyo Kk 異常時の電流遮断装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 01 30 January 1998 (1998-01-30) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 04 31 March 1998 (1998-03-31) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018130017A (ja) * 2018-02-19 2018-08-16 テンパール工業株式会社 差込接続ユニット
JP2019134680A (ja) * 2019-05-16 2019-08-08 テンパール工業株式会社 差込接続ユニット

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