EP0966688B1 - Installation de commutation h.t. dotee d'un dispositif de transfert de signaux - Google Patents

Installation de commutation h.t. dotee d'un dispositif de transfert de signaux Download PDF

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Publication number
EP0966688B1
EP0966688B1 EP98925409A EP98925409A EP0966688B1 EP 0966688 B1 EP0966688 B1 EP 0966688B1 EP 98925409 A EP98925409 A EP 98925409A EP 98925409 A EP98925409 A EP 98925409A EP 0966688 B1 EP0966688 B1 EP 0966688B1
Authority
EP
European Patent Office
Prior art keywords
voltage system
conical antenna
cone
encapsulating housing
voltage
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 - Lifetime
Application number
EP98925409A
Other languages
German (de)
English (en)
Other versions
EP0966688A2 (fr
Inventor
Jörg Gorablenkow
Thomas Ostertag
Gerd Scholl
Harald Dalichau
Christian Korden
Klaus Lange
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0966688A2 publication Critical patent/EP0966688A2/fr
Application granted granted Critical
Publication of EP0966688B1 publication Critical patent/EP0966688B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/40—Element having extended radiating surface
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles

Definitions

  • the invention relates to a high-voltage system a metallic encapsulation housing that at least one High voltage conductor encloses and with a device for Transmission of electromagnetic signals, in particular for communication and / or for monitoring the high-voltage system, the one arranged in the interior of the encapsulation housing Has probe.
  • Such a high-voltage system is, for example, from the Technical article "PD Signal Propagation in GIS Considering Frequencies up to GHz ", 8th Int. Symp. High Voltage Eng., Yokohama, Japan, page 93ff and from the article "A Continous UHF Monitor for Gas-insulated Substations ", IEEE Trans. El. Vol. 26-3, June 1991, pp. 469ff, as well as from the Article “Broadband Couplers for UHF detection of partial discharge in gas-insulated substations ", IEE Proc. Meas. Technol., Vol. 142, No. 3, May 1995, page 237ff.
  • DE 31 30 643 A1 discloses a coupling arrangement for coupling from carrier frequency communication systems to high voltage potential known.
  • EP 0 134 187 A2 describes a probe for the detection of Partial discharges known a plate-shaped sensor which is insulated from the encapsulation housing, with a between the plate and the encapsulation housing annular slot antenna is formed. On the Interior of the encapsulation system facing away from the plate there is a cone-shaped body to adjust the wave resistance provided to a measuring line.
  • a similar partial discharge measuring device is known from EP 0 730 160 A2 known with a sensor plate, which is also in the Interact with the wall of the encapsulation housing an annular Slot antenna forms, also on the Interior of the encapsulation system facing away from the plate a body for adjusting the wave resistance is provided is.
  • the present invention is therefore based on the object a high-voltage system of the type mentioned with a Device for the transmission of electromagnetic signals to create with a probe that is as broadband as possible.
  • the Probe has a cone antenna, the base of which is the high-voltage conductor facing and the cone tip of the inner wall facing the encapsulation housing.
  • the conical body forms inside the encapsulation housing a cone antenna known per se, with which of this known broadband frequency characteristic. It deals (see Meinke Grundlach, “Taschenbuch der Hochfrequenztechnik", Springer-Verlag, 5th edition, chapter 4, Page N 15, 1992) around an asymmetrically excited cone lead, so that for connection to a coaxial line, the outer conductor is grounded, no balun is required.
  • the geometric radiation pattern of the cone antenna favors radiation through the conical surface, d. H. if necessary along the encapsulation housing walls. Is the Cone antenna within a cylindrical tubular encapsulation housing arranged, so the spread of signals emitted by the cone antenna predominantly in Axial direction of the tube instead. Spreading in this direction Signals from other sources are through the cone antenna with high broadband and high sensitivity added.
  • Capacitive voltage tap (Operation as a capacitive voltage divider) and Antenna operation can be alternative depending on the wiring or take place simultaneously.
  • cone antenna to communicate signals to send or receive, so that communication within the encapsulation housing over great distances of, for example, a few hundred meters is.
  • the query of surface wave elements by means of Signals emitted by the cone antenna are conceivable.
  • an arrangement can also be advantageous in which the cone axis the cone antenna parallel to the plane of the encapsulation housing wall and thus perpendicular to the direction of the Housing socket is arranged.
  • An advantageous embodiment of the invention provides that the conical body has a cone opening angle of approximately 90 °.
  • a cone opening angle of approx. 90 ° leads to a base resistance in the range of 50 ohms, which is then the characteristic impedance corresponds to the commonly used coaxial line. This results in a lossless coupling of the cone antenna to a coaxial line possible.
  • Another embodiment of the invention provides that the conical body in a radial bulge of the encapsulation housing is arranged so that the base of the conical body in the imaginary continuation of the inner contour regions of the encapsulation housing adjacent to the bulge is fitted.
  • This embodiment of the invention enables the radiation and the reception of electromagnetic signals in the radial direction with respect to the cone antenna without the cone Body protrudes too far into the interior of the encapsulation housing. This reduces the risk of an electrical flashover reduced from the high voltage conductor to the cone antenna.
  • the conical body can, for example, in a connection piece of the encapsulation housing. The facilitates both the maintenance of the cone antenna and the gastight passage of the coaxial cable.
  • the conical Body is rounded at the circumference of its base.
  • a further advantageous embodiment of the invention provides before that the conical body by several insulation supports is supported in the area of its lateral surface.
  • This construction ensures a secure attachment of the conical Body possible without the radiation pattern to affect. Secure attachment is necessary than in transportation or in the event of an earthquake or strong shocks to the high-voltage system during a switching operation can work.
  • the body can also be a one-piece, hollow casting be formed in which the base area is left open is. This allows inexpensive production.
  • Such a fastening of the conical body represents one particularly low construction and assembly costs.
  • the cone tip of the conical body can be advantageous directly connected to the inner conductor of a coaxial line his.
  • the Base 5 faces the high-voltage conductor 3 while the tip 6 of the encapsulation housing wall 7 faces.
  • the encapsulation housing 1 has a bulge 8, in which the conical body 4 is arranged such that its base 5 roughly in the continued, dashed inner contour 9 of the encapsulation housing 1 shown is fitted.
  • the conical body 4 is on the circumference of it Base area 5 for reasons of field design and rollover security rounded.
  • the encapsulation housing wall 7 all around 45 °.
  • the cone angle 11 of the conical body 4 is about 90 °.
  • the geometrical radiation characteristic is shown in FIG of the conical body 4 forming a cone antenna the wave fronts 12, 13, 14, 15 indicated. These wave fronts spread out some distance from the cone antenna in the axial direction of the cylindrical encapsulation housing 1 off.
  • the wavefronts shown during a transmission operation of the antenna are the Wavefronts shown during a transmission operation of the antenna.
  • you can use the cone antenna as well propagating electromagnetic signals are received, that, for example, of partial discharges in a distant Insulating material supports 16 can be sent out if for example, a particle 17 is deposited on its surface Has.
  • the resulting TE signals then generated are exemplified by the wave fronts 18. These are from the cone antenna 4 with high sensitivity demonstrated.
  • FIG. 2 shows that the conical body 4 divided into an upper part 19 and a lower part 20 is.
  • the lower part 20 is on by means of insulating supports 21, 22 the encapsulating housing wall 1 is supported and fastened.
  • the lower Part 20 of the conical body 4 is for this purpose Screws 23 screwed to the insulating supports 21, 22.
  • the upper part 19 of the conical body 4 for example by means of a press fit or a screw connection put on and fixed.
  • the top 6 of the conical body 4 runs out in a pin 24 which in a corresponding receptacle 25 in a bushing the encapsulation housing wall 1 is held.
  • the characteristic impedance of this coaxial line 26 is 50 ohms.
  • the detection electronics are connected to this coaxial line 26 for partial discharge measurement signals to be received or the transmitter and receiver electronics for system communication to connect the high-voltage system.

Landscapes

  • Arrangements For Transmission Of Measured Signals (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Testing Relating To Insulation (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)

Claims (8)

  1. Installation (2) à haute tension comprenant un boítier (1) métallique d'encapsulation enfermant au moins un conducteur (3) de haute tension et comprenant un dispositif de transmission de signaux électromagnétiques, notamment de communication et/ou de contrôle de l'installation de haute tension, qui a une sonde disposée à l'intérieur du boítier (1) d'encapsulation,
       caractérisée en ce que la sonde a une antenne (4) conique dont la surface (5) de base est tournée vers le conducteur (3) de haute tension et dont la pointe (6) du cône est tournée vers la paroi (7) intérieure du boítier (1) d'encapsulation.
  2. Installation de haute tension suivant la revendication 1, caractérisée en ce que l'antenne (4) conique a un angle (11) d'ouverture du cône de 90° environ.
  3. Installation de haute tension suivant la revendication 1 ou 2, caractérisée en ce que l'antenne (4) conique est disposée dans un renfoncement (8) radial du boítier (1) d'encapsulation de façon que la surface (5) de base de l'antenne (4) conique s'adapte dans le prolongement imaginaire du contour (9) intérieur des parties du boítier (1) d'encapsulation qui sont voisines du renfoncement.
  4. Installation de haute tension suivant la revendication 1 ou l'une des précédentes, caractérisée en ce que l'antenne (4) conique est arrondie sur le pourtour de sa surface (5) de base.
  5. Installation de haute tension suivant la revendication 1 ou l'une des précédentes, caractérisée en ce que l'antenne (4) conique s'appuie par plusieurs appuis (21, 22) isolants dans la partie de sa surface (10) latérale sur la paroi (7) intérieure du boítier (1) d'encapsulation.
  6. Installation de haute tension suivant la revendication 1 ou l'une des précédentes, caractérisée en ce que l'antenne (4) conique est creuse et peut être subdivisée parallèlement à sa surface (5) de base.
  7. Installation de haute tension suivant la revendication 1 ou l'une des précédentes, caractérisée en ce que l'antenne (4) conique est prise dans la partie de sa pointe (6) de cône dans une pièce (27) isolante fixée au boítier (1) d'encapsulation.
  8. Installation de haute tension suivant la revendication 1 ou l'une des précédentes, caractérisée en ce que la pointe du cône de l'antenne conique est reliée directement au conducteur inférieur d'une ligne (26) coaxiale.
EP98925409A 1997-03-14 1998-03-13 Installation de commutation h.t. dotee d'un dispositif de transfert de signaux Expired - Lifetime EP0966688B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19711990A DE19711990C2 (de) 1997-03-14 1997-03-14 Hochspannungsanlage mit einer Vorrichtung zur Übertragung von Signalen
DE19711990 1997-03-14
PCT/DE1998/000807 WO1998040753A2 (fr) 1997-03-14 1998-03-13 Installation de commutation h.t. dotee d'un dispositif de transfert de signaux

Publications (2)

Publication Number Publication Date
EP0966688A2 EP0966688A2 (fr) 1999-12-29
EP0966688B1 true EP0966688B1 (fr) 2002-06-05

Family

ID=7824234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98925409A Expired - Lifetime EP0966688B1 (fr) 1997-03-14 1998-03-13 Installation de commutation h.t. dotee d'un dispositif de transfert de signaux

Country Status (5)

Country Link
US (1) US6307381B1 (fr)
EP (1) EP0966688B1 (fr)
JP (1) JP2001516449A (fr)
DE (2) DE19711990C2 (fr)
WO (1) WO1998040753A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005269626A (ja) * 2004-02-18 2005-09-29 Ricoh Co Ltd アンテナ
US8184060B2 (en) * 2008-10-07 2012-05-22 Pctel, Inc. Low profile antenna
FR2947053B1 (fr) * 2009-06-19 2011-12-23 Areva T & D Ag Dispositif de surveillance d'un poste electrique haute tension isole au gaz par mesure de decharges partielles et poste electrique haute tension isole au gaz mettant en oeuvre ce dispositif
US9329221B2 (en) 2011-04-06 2016-05-03 Mitsubishi Electric Corporation Partial discharge sensor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6016163B2 (ja) * 1978-02-03 1985-04-24 株式会社日立製作所 ガス絶縁電気機器およびその部分放電検出方法
DE3130643A1 (de) * 1981-07-28 1983-02-24 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Hochspannungs- traegerfrequenz- kopplungsanordnung
DE3327917A1 (de) * 1983-07-29 1985-02-07 Siemens AG, 1000 Berlin und 8000 München Messvorrichtung zur feststellung von teilentladungen innerhalb metallgekapselter, druckgasisolierter hochspannungsschaltanlagen
ATE93326T1 (de) 1989-03-22 1993-09-15 Siemens Ag Messeinrichtung mit einer hilfselektrode fuer eine gasisolierte gekapselte hochspannungsanlage.
JPH0750147B2 (ja) * 1989-06-14 1995-05-31 株式会社日立製作所 ガス絶縁電気機器の異常位置標定方法および装置
JP2641588B2 (ja) * 1990-03-09 1997-08-13 株式会社日立製作所 電力機器およびその異常標定方法
CA2188305C (fr) * 1994-04-25 1999-11-16 Richard M. Wiesman Detecteur auto-alimente pour lignes electriques
DE19507032A1 (de) * 1995-03-01 1996-09-05 Abb Management Ag Teilentladungsmeßvorrichtung
CN1210628A (zh) 1996-01-31 1999-03-10 西门子公司 带金属外壳的开关设备

Also Published As

Publication number Publication date
WO1998040753A3 (fr) 1998-12-10
DE19711990C2 (de) 1999-02-11
DE59804318D1 (de) 2002-07-11
DE19711990A1 (de) 1998-09-24
JP2001516449A (ja) 2001-09-25
WO1998040753A2 (fr) 1998-09-17
US6307381B1 (en) 2001-10-23
EP0966688A2 (fr) 1999-12-29

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