EP1690276A1 - Schaltgerät für den mittel- und hochspannungsbereich - Google Patents
Schaltgerät für den mittel- und hochspannungsbereichInfo
- Publication number
- EP1690276A1 EP1690276A1 EP04820595A EP04820595A EP1690276A1 EP 1690276 A1 EP1690276 A1 EP 1690276A1 EP 04820595 A EP04820595 A EP 04820595A EP 04820595 A EP04820595 A EP 04820595A EP 1690276 A1 EP1690276 A1 EP 1690276A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switches
- switching device
- switching
- voltage range
- time window
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
Definitions
- the invention relates to a switching device for the medium and high voltage range according to
- the subject area concerns medium-voltage switchgear, but does not exclude high-voltage switchgear, in particular a vacuum circuit-breaker, which is suitable for the frequent switching of capacitor banks.
- Either SF 6 -filled and vacuum circuit breakers are known, which can also switch off short-circuit currents in addition to the capacitive current, or special capacitor switching devices that can only handle the capacitive current.
- capacitor charging current When the capacitor charging current is switched off, high return voltages occur in the network, which involve the risk of reignition over the switching path. The resulting overvoltages can damage the capacitors or wetting agents.
- the IEC 62271-100 which has been in force since 2001, takes these options more into account than before and classifies circuit breakers according to the low and very low re-ignition frequency. None in the corresponding type tests
- the idea now is to connect two vacuum chambers in series per phase. This primarily divides the voltage between the switching sections and takes advantage of the root dependency.
- the vacuum breakdown is a very fast process, which sometimes requires longer lead times. The likelihood that a breakdown process will occur in the second switching path during the first discharge is very small. Since only a parasitic capacitance can discharge in the event of a partial breakdown of a section, the probability is high that the section will solidify again before a complete breakdown occurs.
- the drives of the switches are mechanically coupled. This enables good switching synchronization.
- a suitable synchronization can also take place in that the drives of the switches are electrically coupled.
- the time window dt can be varied with setting means.
- an optimal time window dt of less than or equal to 3 milliseconds results.
- the switches connected in series are structurally identical. This is a further advantageous measure for the described symmetrization of the voltage distribution in the switching case.
- the two switches are vacuum circuit breakers.
- the two switches are arranged on a base plate and the connections to a busbar and / or
- Cable plugs and / or transducers are arranged within a gas-tight housing which is filled with SF 6 or N 2 or air as the insulating gas. In this way, the switching principle that can be achieved according to the invention can be integrated into conventional switching device types.
- Fig. 1 Switchgear with only the two vacuum circuit breakers per phase.
- Fig. 2 Equivalent circuit
- circuit breakers 1 of type VD4X which is also used for outgoing and infeed panels, one above the other on a common base plate 2.
- the base plate is placed gas-tight in front of a pressure-proof housing.
- the connections to the busbar or to cable plugs and transducers are made within the gas-tight space in a known manner.
- the publication provides an example of use in a gas-insulated ZX1.2 or ZX2 system.
- the winding and unwinding for electrical actuation of the drives are either connected in series or in parallel. Since the time accuracy of switching on is not of great importance, the coils are only electrically coupled. If one of the switches does not turn on, a fault message is generated. The switch can then be turned off again without danger.
- the switch-off on the other hand, has to happen almost simultaneously in order to ensure that the voltage is divided between the two vacuum chambers. Due to the steepness of the recurring voltage after the current has been deleted, synchronism of less than 3 ms is required. On the one hand, this is achieved by using similar types
- Switch (1) and by a mechanical coupling (2) of the switch-off shafts (3) The rigid coupling between the two shafts is adjustable and enables the switch-off times to be adjusted. A synchronization of less than 3 ms, preferably 1 ms, is thus achieved.
- An electrode (4) can be positioned to even out the voltage distribution between the switching sections.
- the electrode increases the coupling between the two vacuum chambers.
- the location and shape of such electrodes is determined by the position of the switching chambers, especially their capacitance to earth or to the high-voltage potential.
- FIG. 2 shows an equivalent circuit diagram for the entire switching path, representative of all three phases.
- a disconnector 10 is arranged at the outlet from L1 and is designed as a three-position switch with grounding position 11.
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Gas-Insulated Switchgears (AREA)
- Details Of Aerials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003155568 DE10355568B4 (de) | 2003-11-27 | 2003-11-27 | Schaltgerät für den Mittel- und Hochspannungsbereich |
| PCT/EP2004/013100 WO2005062327A1 (de) | 2003-11-27 | 2004-11-18 | Schaltgerät für den mittel- und hochspannungsbereich |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1690276A1 true EP1690276A1 (de) | 2006-08-16 |
| EP1690276B1 EP1690276B1 (de) | 2014-06-04 |
Family
ID=34625326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04820595.9A Revoked EP1690276B1 (de) | 2003-11-27 | 2004-11-18 | Schaltgerät für den mittel- und hochspannungsbereich |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1690276B1 (de) |
| CN (1) | CN1894762B (de) |
| DE (1) | DE10355568B4 (de) |
| ES (1) | ES2495441T3 (de) |
| WO (1) | WO2005062327A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3813605A (en) | 1970-11-30 | 1974-05-28 | Massachusetts Inst Technology | Bistable optical device |
| US3708638A (en) | 1970-12-14 | 1973-01-02 | Gen Electric | Vacuum type electric circuit breaker |
| US3813506A (en) * | 1973-04-12 | 1974-05-28 | Gen Electric | Vacuum-type circuit breaker with improved ability to interrupt capacitance currents |
| US3839612A (en) | 1973-08-08 | 1974-10-01 | Gen Electric | Vacuum-type circuit breaker comprising series-connected vacuum interrupters within a grounded tank |
| DE3300979A1 (de) * | 1983-01-12 | 1984-07-12 | Siemens AG, 1000 Berlin und 8000 München | Vakuumschalter mit zwei in reihe geschalteten schaltroehren je pol |
| DE3901712A1 (de) * | 1989-01-21 | 1990-08-02 | Sachsenwerk Ag | Vakuumschalter |
| FR2682807B1 (fr) * | 1991-10-17 | 1997-01-24 | Merlin Gerin | Disjoncteur electrique a deux cartouches a vide en serie. |
| DE19958646C2 (de) * | 1999-12-06 | 2001-12-06 | Abb T & D Tech Ltd | Hybridleistungsschalter |
| DE10157140B4 (de) * | 2001-11-21 | 2011-02-24 | Abb Ag | Hybridschalter |
-
2003
- 2003-11-27 DE DE2003155568 patent/DE10355568B4/de not_active Expired - Lifetime
-
2004
- 2004-11-18 ES ES04820595.9T patent/ES2495441T3/es not_active Expired - Lifetime
- 2004-11-18 EP EP04820595.9A patent/EP1690276B1/de not_active Revoked
- 2004-11-18 CN CN200480037506.4A patent/CN1894762B/zh not_active Expired - Lifetime
- 2004-11-18 WO PCT/EP2004/013100 patent/WO2005062327A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005062327A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1894762A (zh) | 2007-01-10 |
| DE10355568A1 (de) | 2005-06-30 |
| WO2005062327A1 (de) | 2005-07-07 |
| CN1894762B (zh) | 2013-12-18 |
| EP1690276B1 (de) | 2014-06-04 |
| ES2495441T3 (es) | 2014-09-17 |
| DE10355568B4 (de) | 2011-04-07 |
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