WO2006018371A1 - Elektroenergieübertragungseinrichtung mit einem phasenleiter und einem mantelleiter - Google Patents
Elektroenergieübertragungseinrichtung mit einem phasenleiter und einem mantelleiter Download PDFInfo
- Publication number
- WO2006018371A1 WO2006018371A1 PCT/EP2005/053712 EP2005053712W WO2006018371A1 WO 2006018371 A1 WO2006018371 A1 WO 2006018371A1 EP 2005053712 W EP2005053712 W EP 2005053712W WO 2006018371 A1 WO2006018371 A1 WO 2006018371A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- conductor
- conductors
- sheath
- power transmission
- transmission device
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
- H02G5/063—Totally-enclosed installations, e.g. in metal casings filled with oil or gas
Definitions
- Electric power transmission device with a phase conductor and a sheath conductor
- the invention relates to a Elektroenergyübertra ⁇ restriction device ter with a phase conductor and an encasing, wherein the phase conductors of the transmission is a elektri ⁇ 's energy flow.
- Such an electric power transmission device is spielmik known from the patent US 5,530,200.
- the local electric power transmission device is designed as a gas-insulated electrical line.
- Each of the phase conductors is surrounded by a tubular sheath conductor in each case.
- the inside of the sheath conductors is filled with an insulating gas under elevated pressure.
- Gas-insulated lines have a very high current carrying capacity due to their construction. Since the sheath conductors must be pressure-gas-tight and tight, they are made thick-walled. This makes it possible to guide large backflows through the sheathed conductor. Due to the comparatively low impedance of a gas-insulated line and the high current carrying capacity, large short-circuit currents can occur in meshed networks. Switching devices such. B. high voltage
- Circuit breakers can no longer control these in part. In the typical application of gas-insulated lines for the transmission of larger amounts of electrical energy into existing network arrangements, there is therefore the danger of overloading of switching devices.
- the invention has the object to provide a power transmission device such einer ⁇ configure that in simple way, the rise of a short-circuit current is limited.
- the object is at a Elektroenergieübertragungseinrich- of the type mentioned processing according to the invention thereby solves ge ⁇ that the external conductor is separable by means of a switching device.
- SHORT- is inserted in a sheath conductors, as usual in gas-insulated lines, occurs due to transitions Indutationsvor ⁇ a return current.
- the return current is directed in magnitude and phase so that the magnetic fields which emanate from the phase current flowing in the phase conductor and from the return current flowing in the sheath conductor approximately neutralize themselves.
- the flow of the return current in the sheath conductor is interrupted in certain sections.
- the magnetic fields of the phase current and the return current can no longer be neutralized.
- a magnetic field is also occurs outside the sheathed conductor, a magnetic field. This results in an increased inductance of the Monanord ⁇ tion.
- short-circuit currents are to be limited, it is advantageous ⁇ way, to carry out the switching device, for example, as a power switch or power ⁇ electronic components, such as thyristors.
- the sheathed conductor allows the sheathed conductor to be interrupted rapidly, thereby increasing the inductance of the electrical power transmission device. Due to the increased Indukt foundedsbelages a short-circuit current is limited.
- a further advantageous embodiment can provide that between an input and an output of the electrical energy Transmission device of the sheath conductor is separable into a larger An ⁇ number of sections than the phase conductor.
- a fine gradation of the influence of a short-circuit current can be provided.
- a more or less strong limitation can be achieved.
- the risk of overcompensation in a separation is reduced to large sections of the sheathed conductor.
- An operational separation of the sheathed conductor provides leis ⁇ tet it roenergieübertragungsleaned even during a power transmission over the Elekt ⁇ to rea ⁇ lust on network operations quickly. Targeted individual sections of the sheathed conductor can be switched on or off.
- sheath conductor is separable by means of a repeatedly switchable switching device.
- Switchable switching devices such as switch-disconnectors, load switches or circuit breakers
- the individual switching devices can be matched with one another in terms of their switching behavior, so that, for example, a cascade-like connection or disconnection of individual shroud conductor sections takes place.
- a further advantageous embodiment may provide that at least one, in particular each of the sections of the man ⁇ telleiters is electrically grounded.
- At least one low-impedance grounding of the sheathed conductor it is possible to flow in the jacket flowing back currents to earth from ⁇ .
- return currents can forcibly ⁇ flow over certain grounding points.
- the magnetic flux which also occurs outside of the sheath conductor during a separation of the sheath conductors is bundled. Due to the bundling, the inductive effect is additionally reinforced. In ei ⁇ ner reinforcement of the inductance of the Elektroenergyschreibtra ⁇ supply device in the event of a short circuit circuit current greater impact on the short ⁇ , that is, the short-circuit current ⁇ is also influenced by amplitude and phase angle. In order to ensure as uniform as possible act on all Pha ⁇ senleiter and any external conductor, it is advantageous to arrange the ferromagnetic body in each case between adjacent casing conductors.
- two ferromagnetic bodies for example, can be arranged in each case between the outer phase conductors / sheathed conductors and the inner phase conductor / sheathed conductor.
- a plurality of phase conductors and a plurality of sheath conductors run parallel to one another and sections of different sheath conductors can be electrically outcrossed.
- the Indukt organisationssbelages not only ei ⁇ ne limit occurring short-circuit currents is possible. Furthermore, by changing the impedance of an electrical energy transmission device, the direction of an energy flow within a network can be influenced. Thus, targeted overloading of individual transmission lines can be prevented by passing the energy flow through alternative paths by means of an impedance change.
- at least one ferromagnetic body influencing the magnetic field of the electric power transmission device is arranged between the individual sheathed conductors.
- a sheathed conductor may be further provided that a certain sections surrounding the phase conductors, in particular ⁇ sondere is arranged coaxially with respect to the phase conductor.
- phase conductor By enclosing the phase conductor with the sheath conductor, the phase conductor is protected against external mechanical influences.
- a uniform induction of a reverse current in the sheath conductor can be produced.
- a further advantageous embodiment can provide that the sheath conductor is at least partially formed from a pressure-resistant tube.
- this tube can also be used as encapsulating a gas ⁇ insulated line use.
- the pressure-resistant tube can then be used both for mechanical stabilization of the electrical energy transmission device, as well as for the gas-tight sheathing of the phase conductor.
- Figure 1 shows a gas-insulated line with switchable Man ⁇ telleiter with switched-over conductor
- FIG. 2 shows the gas-insulated line with broken conductor
- FIG. 3 shows a gas-insulated cable with a binding crosswise ⁇ cash shell conductor sections
- Figure 4 shows a laying of several phase conductors and a plurality of sheath conductors in a plane and the
- FIG. 5 shows a laying of several phase conductors and a plurality of sheath conductors in a triangular arrangement.
- a gas-insulated electrical line is shown schematically in section.
- the gas-insulated electrical ⁇ cal line has a first phase conductor Ia.
- the first phase conductor Ia is surrounded by a first sheath conductor 2a.
- the sheath conductor 2a is divisible via a first switch 3a into a first section 2a 'and a second section 2a''.
- Parallel to the first phase conductor Ia and the first sheath conductor 2a, a second phase conductor Ib and a third phase conductor Ic and a second sheath conductor 2b and a third sheath conductor 2c are arranged.
- the three Pha ⁇ senleiter Ia, Ib, Ic and the three external conductor 2a, 2b, 2c are of identical construction, so that the second Man ⁇ telleiter 2b and the third external conductor 2c by means of a second switch 3b and a third switch 3c each in a first section 2b ', 2c' and a second section 2b '' and 2c '' are divisible.
- the three phase conductors Ia, Ib, Ic, and the three sheath conductors 2a, 2b, 2c serve to transmit an electrical energy flow within a three-phase AC voltage system.
- a feeding electric power supply network 4 is arranged on the input side of the gas-insulated electrical line acting as an electric power transmission device.
- the electrical energy supply network 4 has, for example, a plurality of generators or also feed-in points from adjacent electric energy supply networks.
- the Elektroenergychucksnet ⁇ zes 4 grounding points are for example provided in the individual phases of the three-phase alternating voltage systems ⁇ at substations.
- an electrical pickup 5 is arranged at the output of the gas-insulated electrical conductor.
- the buyer 5 is for example an industrial plant with a
- a gas-insulated line is constructed of a phase conductor Ia, Ib, Ic, which is surrounded by a sheath conductor 2a, 2b, 2c.
- the sheath conductor 2a, 2b, 2c is formed in the form of a thick-walled tube, which consists of electrically lei ⁇ tendem material.
- the sheath conductor 2a, 2b, 2c is arranged in a gastight manner around the phase conductor 1a, 1b, 1c.
- the sheath conductors 2a, 2b, 2c are each connected to a ground potential. This makes it possible to lay the gas-insulated electrical lines directly in the ground, or it may be on the provision of a contact Protective device for the jacket conductor 2a, 2b, 2c are dispensed with.
- the switches 3a, 3b, 3c are closed, so that the sheath conductors 2a, 2b, 2c are continuously electrically conductive.
- the phase current flows to the acceptor 5. Due to electromagnetic induction, a so-called reverse current is induced in the shell conductors 2a, 2b, 2c.
- the return current has approximately the same amplitude as the phase current in the phase conductors Ia, Ib, Ic. However, a phase angle offset by 180 ° is recorded.
- the egg ⁇ ing induction of the electric power transmission device is almost exclusively determined by the arrangement of the sheath conductors 2a, 2b, 2c and the phase conductors Ia, Ib, Ic.
- the magnetic field is very low outside the sheath conductors 2a, 2b, 2c.
- the short circuit is supplied from the electrical power supply network 4 via the gas-insulated line.
- the gas-insulated electrical line is quite in the Able to carry the short-circuit current.
- the height of the short-circuit current to be controlled is essentially limited by the circuit breakers used, which are provided for switching off such a short-circuit current.
- a short-circuit current is detected, an opening of the switches 3a, 3b, 3c and thus an interruption of the Man ⁇ telleiter 2a, 2b, 2c respectively in a first section 2a ', 2b', 2c 'and a second section 2a'', 2b '', 2c '' (see Figure 2).
- the triggering of the switch can be effected, for example, by monitoring the reverse current flowing in the sheath conductor 2a, 2b, 2c, or the switches 3a, 3b, 3c can be activated by protective devices which monitor the phase current in the phase conductors 1a, 1b, 1c.
- the earth connection of the conductor conductors 2a, 2b, 2c is separated at the output end of the gas-insulated electrical line. Due to the division into several sections, the flow of a return current over the entire of the sheathed conductor 2a, 2b, 2c is no longer possible. As a result, the overall system is brought into an asymmetrical position and the magnetic field also extends outside of the
- Sheath conductors 2a, 2b, 2c This results in an increased inductance of the arrangement formed from phase conductors and sheath conductors.
- the increased inductive component increases the overall impedance of the gas-insulated electrical line (between the input side and the output side).
- the Incr ⁇ te impedance causes circuit current limiting of the current flowing Kurz ⁇ . If the increase in the impedance are tertungs addition un ⁇ , there is still the possibility ferromagnetic body between the encasing conductors 2a, 2b, 2c or outside the external conductor 2a, 2b, 2c to ⁇ order (see FIG. 4 and 5) ,
- the ferromagnetic bodies act to bundle the outside of the sheath conductor 2a, 2b, 2c occurring magnetic field.
- the ferromagnetic body acts as an iron core.
- FIG. 4 shows a laying arrangement of a gas-insulated electrical line, in which the three phase conductors Ia, Ib, Ic belonging to an energy transmission system for three phase alternating current and the three arranged coaxially with the three phase conductors Ia, Ib, Ic Sheath conductors 2a, 2b, 2c lie in one plane. Between the sheath conductors 2a, 2b, 2c, a first ferromagnetic body 8 and a second ferromagnetic body 9 are arranged. The ferromagnetic bodies 8, 9 are used for bundling the magnetic field in the case of the separation or "cross-bonding" of sheathed conductors 2a, 2b, 2c.
- FIG. 1 shows a laying arrangement of a gas-insulated electrical line, in which the three phase conductors Ia, Ib, Ic belonging to an energy transmission system for three phase alternating current and the three arranged coaxially with the three phase conductors Ia, Ib, Ic Sheath conductor
- a third ferromagnetic body 10 is arranged, which in the case of an uneven loading of phase conductors Ia, Ib, Ic and associated sheath conductors 2a, 2b, 2c then becomes the thinner
- the ferromagnetic bodies can be made in different shapes and materials, such as stratified bodies, etc.
- the arrangement of the ferromagnetic bodies can also be used take place at further in Figs. 4 and 5, not shown Posi ⁇ .
- the ferromagnetic bodies can thus also be arranged laterally or above or below the sheath conductors 2a, 2b, 2c.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05767961A EP1776747A1 (de) | 2004-08-13 | 2005-07-29 | Elektroenergieübertragungseinrichtung mit einem phasenleiter und einem mantelleiter |
US11/660,236 US7514822B2 (en) | 2004-08-13 | 2005-07-29 | Electrical power transmission device having a phase conductor and an encasing conductor |
CN2005800276326A CN101006628B (zh) | 2004-08-13 | 2005-07-29 | 具有相线导体和护套导体的电能传输装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004040246.9 | 2004-08-13 | ||
DE102004040246A DE102004040246A1 (de) | 2004-08-13 | 2004-08-13 | Elektroenergieübertragungseinrichtung mit einem Phasenleiter und einem Mantelleiter |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006018371A1 true WO2006018371A1 (de) | 2006-02-23 |
Family
ID=35197720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/053712 WO2006018371A1 (de) | 2004-08-13 | 2005-07-29 | Elektroenergieübertragungseinrichtung mit einem phasenleiter und einem mantelleiter |
Country Status (5)
Country | Link |
---|---|
US (1) | US7514822B2 (de) |
EP (1) | EP1776747A1 (de) |
CN (1) | CN101006628B (de) |
DE (1) | DE102004040246A1 (de) |
WO (1) | WO2006018371A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005022180A1 (de) * | 2005-05-09 | 2006-11-23 | Siemens Ag | Verfahren zur Ermittlung des Zustandes eines räumlich ausgedehnten Körpers |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1512444A (en) | 1924-10-21 | Best available copy | ||
US3046422A (en) * | 1959-10-05 | 1962-07-24 | Ite Circuit Breaker Ltd | Coaxial metal enclosed isolated phase bus |
US3795820A (en) * | 1972-01-18 | 1974-03-05 | Bbc Brown Boveri & Cie | Cross-connection arrangement between phase-isolated metal enclosures of insulating-gas-filled high-voltage conductors |
US5530200A (en) | 1992-06-03 | 1996-06-25 | Gec Alsthom T & D Sa | Three-phase metal-clad electricity line, and method of manufacture |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1028189A (de) * | 1900-01-01 | |||
BE649468A (de) * | 1963-07-04 | 1964-12-18 | ||
CN85106061B (zh) * | 1985-08-10 | 1988-10-26 | 株式会社日立制作所 | 气体绝缘开关装置的连接系统 |
DE10016216C2 (de) * | 2000-03-31 | 2002-03-21 | Abb Hochspannungstechnik Ag Zu | Verfahren zum Reduzieren von elektrischen Verlusten in einer Hochspannungsübertragungsleitung und Leitungsabschnitt einer Hochspannungsübertragungsleitung |
-
2004
- 2004-08-13 DE DE102004040246A patent/DE102004040246A1/de not_active Withdrawn
-
2005
- 2005-07-29 CN CN2005800276326A patent/CN101006628B/zh not_active Expired - Fee Related
- 2005-07-29 US US11/660,236 patent/US7514822B2/en not_active Expired - Fee Related
- 2005-07-29 WO PCT/EP2005/053712 patent/WO2006018371A1/de active Application Filing
- 2005-07-29 EP EP05767961A patent/EP1776747A1/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1512444A (en) | 1924-10-21 | Best available copy | ||
US3046422A (en) * | 1959-10-05 | 1962-07-24 | Ite Circuit Breaker Ltd | Coaxial metal enclosed isolated phase bus |
US3795820A (en) * | 1972-01-18 | 1974-03-05 | Bbc Brown Boveri & Cie | Cross-connection arrangement between phase-isolated metal enclosures of insulating-gas-filled high-voltage conductors |
US5530200A (en) | 1992-06-03 | 1996-06-25 | Gec Alsthom T & D Sa | Three-phase metal-clad electricity line, and method of manufacture |
Also Published As
Publication number | Publication date |
---|---|
US20070252443A1 (en) | 2007-11-01 |
EP1776747A1 (de) | 2007-04-25 |
CN101006628A (zh) | 2007-07-25 |
US7514822B2 (en) | 2009-04-07 |
DE102004040246A1 (de) | 2006-02-23 |
CN101006628B (zh) | 2010-12-08 |
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