EP0966688B1 - Hochspannungsanlage mit einer vorrichtung zur übertragung von signalen - Google Patents
Hochspannungsanlage mit einer vorrichtung zur übertragung von signalen Download PDFInfo
- 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
Links
Images
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)
- Testing Relating To Insulation (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Description
Claims (8)
- Hochspannungsanlage (2) mit einem metallischen Kapselungsgehäuse (1), das wenigstens einen Hochspannungsleiter (3) umschließt und mit einer Vorrichtung zur Übertragung von elektromagnetischen Signalen, insbesondere zur Kommunikation und/oder zur Überwachung der Hochspannungsanlage, die eine im Innenraum des Kapselungsgehäuses (1) angeordnete Sonde aufweist,
dadurch gekennzeichnet, daß
die Sonde eine Kegelantenne (4) aufweist, deren Grundfläche (5) dem Hochspannungsleiter (3) zugewandt und deren Kegelspitze (6) der Innenwand (7) des Kapselungsgehäuses (1) zugewandt ist. - Hochspannungsanlage nach Anspruch 1,
dadurch gekennzeichnet, daß
die Kegelantenne (4) einen Kegelöffnungswinkel (11) von etwa 90° aufweist. - Hochspannungsanlage nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß
die Kegelantenne (4) in einer radialen Ausbuchtung (8) des Kapselungsgehäuses (1) derart angeordnet ist, daß die Grundfläche (5) der Kegelantenne (4) in die gedachte Fortsetzung der Innenkontur (9)der der Ausbuchtung benachbarten Bereiche des Kapselungsgehäuses (1) eingepaßt ist. - Hochspannungsanlage nach Anspruch 1 oder einem der vorhergehenden,
dadurch gekennzeichnet, daß
die Kegelantenne (4) am Umfang ihrer Grundfläche (5) abgerundet ist. - Hochspannungsanlage nach Anspruch 1 oder einem der vorhergehenden,
dadurch gekennzeichnet, daß
die Kegelantenne (4) durch mehrere Isolierstützer (21, 22) im Bereich ihrer Mantelfläche (10) an der Innenwand (7) des Kapselungsgehäuses (1) abgestützt ist. - Hochspannungsanlage nach Anspruch 1 oder einem der vorhergehenden,
dadurch gekennzeichnet, daß die Kegelantenne (4) hohl und parallel zu ihrer Grundfläche (5) teilbar ausgebildet ist. - Hochspannungsanlage nach Anspruch 1 oder einem der vorhergehenden
dadurch gekennzeichnet, daß
die Kegelantenne (4) im Bereich ihrer Kegelspitze (6) in einem an dem Kapselungsgehäuse (1) befestigten Isolierkörper (27) gefaßt ist. - Hochspannungsanlage nach Anspruch 1 oder einem der vorhergehenden,
dadurch gekennzeichnet, daß
die Kegelspitze der Kegelantenne unmittelbar mit dem Innenleiter einer Koaxialleitung (26) verbunden ist.
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 (de) | 1997-03-14 | 1998-03-13 | Hochspannungsanlage mit einer vorrichtung zur übertragung von signalen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0966688A2 EP0966688A2 (de) | 1999-12-29 |
EP0966688B1 true EP0966688B1 (de) | 2002-06-05 |
Family
ID=7824234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98925409A Expired - Lifetime EP0966688B1 (de) | 1997-03-14 | 1998-03-13 | Hochspannungsanlage mit einer vorrichtung zur übertragung von signalen |
Country Status (5)
Country | Link |
---|---|
US (1) | US6307381B1 (de) |
EP (1) | EP0966688B1 (de) |
JP (1) | JP2001516449A (de) |
DE (2) | DE19711990C2 (de) |
WO (1) | WO1998040753A2 (de) |
Families Citing this family (4)
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 |
GB2503112B (en) | 2011-04-06 | 2016-03-09 | Mitsubishi Electric Corp | Partial discharge sensor |
Family Cites Families (9)
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 |
WO1990011530A1 (de) | 1989-03-22 | 1990-10-04 | Siemens Aktiengesellschaft | Messeinrichtung mit einer hilfselektrode für 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 |
WO1995029553A1 (en) * | 1994-04-25 | 1995-11-02 | Foster-Miller Inc. | Self-powered powerline sensor |
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 |
-
1997
- 1997-03-14 DE DE19711990A patent/DE19711990C2/de not_active Expired - Fee Related
-
1998
- 1998-03-13 US US09/381,022 patent/US6307381B1/en not_active Expired - Lifetime
- 1998-03-13 EP EP98925409A patent/EP0966688B1/de not_active Expired - Lifetime
- 1998-03-13 WO PCT/DE1998/000807 patent/WO1998040753A2/de active IP Right Grant
- 1998-03-13 DE DE59804318T patent/DE59804318D1/de not_active Expired - Lifetime
- 1998-03-13 JP JP53909698A patent/JP2001516449A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
WO1998040753A3 (de) | 1998-12-10 |
DE19711990A1 (de) | 1998-09-24 |
WO1998040753A2 (de) | 1998-09-17 |
JP2001516449A (ja) | 2001-09-25 |
DE59804318D1 (de) | 2002-07-11 |
EP0966688A2 (de) | 1999-12-29 |
DE19711990C2 (de) | 1999-02-11 |
US6307381B1 (en) | 2001-10-23 |
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