WO2001057979A1 - Mehrpoliger niederspannungs-leistungsschalter mit einem stromerfassungsgerät je pol - Google Patents
Mehrpoliger niederspannungs-leistungsschalter mit einem stromerfassungsgerät je pol Download PDFInfo
- Publication number
- WO2001057979A1 WO2001057979A1 PCT/DE2001/000428 DE0100428W WO0157979A1 WO 2001057979 A1 WO2001057979 A1 WO 2001057979A1 DE 0100428 W DE0100428 W DE 0100428W WO 0157979 A1 WO0157979 A1 WO 0157979A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit breaker
- current
- support body
- voltage circuit
- low
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/26—Arrangements of fuses, resistors, voltage arresters or the like
-
- 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
- H01H33/027—Integrated apparatus for measuring current or voltage
Definitions
- the invention relates to a multi-pole low-voltage circuit breaker with a housing and with one current detection device per pole, each current detection device having a current conductor belonging to a switching contact system of the pole and a secondary part penetrated by the current conductor.
- Circuit breakers of the specified type are e.g. B. in the
- Circuit breaker can be affected by a faulty high current, each of the poles is equipped with a current measuring device.
- the secondary parts of the current detection devices generally consist of a carrier and a winding applied thereon, which can be single-layer or multi-layer. These components are also usually provided with a housing or casing for protection against damage and external influences.
- the secondary parts of the current detection devices are selected according to the requirements of the user and assembled individually. For this, at the Provided back of the housing of the circuit breaker suitable recesses or pockets, through which the lines leading to the switching contact systems current conductors extend, nem form the same time Anschl ⁇ ssstoff for connection to e ⁇ to be protected circuit.
- the invention has for its object to improve the current detection in multi-pole low-voltage circuit breakers and to simplify the assembly of current detection devices.
- the combination of the secondary parts of the current detection devices of all poles into a uniform assembly which is provided according to the invention, creates the possibility of coordinated and coherent tests Provide units for current detection in multi-pole circuit breakers. This reduces the time required for mechanical assembly as well as for calibration and adjustment on the finished circuit breaker.
- the multi-pole support body also improves the mechanical strength by supporting the current conductors in a coherent structure.
- the support body provided according to the invention can have recesses for receiving the secondary parts, these secondary parts being fastened in the recesses by casting with a synthetic resin compound.
- the same materials and manufacturing methods can be used both for the manufacture of the support body and for the attachment of the secondary parts, as are known hitherto for the manufacture of the housing or housing parts of circuit breakers and the associated single-pole current detection devices.
- the carrier body which has an essentially plate-shaped and rectangular basic shape, can be formed as part of a rear wall of the housing of the circuit breaker, the recesses mentioned being arranged on the side of the carrier body facing the interior of the circuit breaker. This arrangement provides good protection of the secondary parts against damage when handling the circuit breaker and a favorable support effect on the current conductors belonging to the current detection devices.
- the current detection devices in low-voltage circuit breakers can be of very different types.
- a frequently used type of construction is the Rogowski current transformer, the one surrounding the current conductor have non-magnetic carrier and a single-layer winding, the beginning and end of which are immediately adjacent.
- the output variable of such a current sensor depends not only on the number of turns, but also on its geometric distribution and arrangement.
- a different transmission behavior of the Rogowski current transformers due to manufacturing tolerances can be compensated for in that each of the Rogowski current transformers is assigned a voltage divider consisting of resistors and these voltage dividers are also attached to the supporting body. This means that the Rogowski current transformers can be calibrated prior to installation in a circuit breaker, which makes it easier compared to the previously required adaptation or calibration on the finished circuit breaker.
- the voltage dividers mentioned can each be designed to be adjustable by means of an adjusting element, with all adjusting elements being arranged so as to be accessible on the rear side of the supporting body. This allows the current transformers or current sensors to be easily adjusted in production. However, to ensure that the setting made is retained, it is recommended that the setting elements can be protected against unintentional actuation by means of an access lock that can be attached after the setting has been made.
- a potting compound covering an adjusting member is particularly suitable as an access barrier.
- the current detection devices of a low-voltage circuit breaker provide output variables that are processed in a tripping device.
- the necessary for the operation of such a release device te auxiliary energy is usually also obtained from the current conductors of the circuit breaker using a current transformer.
- a current sensor intended only for measuring purposes and an inductive current transformer serving to provide auxiliary energy in a common housing.
- this design can also be used in the case of a multi-pole support body in such a way that at least one separate current transformer for energy supply is arranged on the common support body.
- Figure 1 shows schematically a multi-pole low-voltage circuit breaker in section.
- FIG. 2 shows a support body for current detection devices provided for a three-pole circuit breaker with a view of the inside facing the interior of the circuit breaker, while the support body m of FIG. 3 is shown from the outside and in FIG. 4 in profile.
- FIG. 5 shows an ironless sensor coil for a Rogowski current transformer as individual parts of a current detection device and FIG. 6 shows the secondary part of an auxiliary current transformer.
- FIG. 7 The three-pole support body shown above in FIGS. 2, 3 and 4 is shown in FIG. 7 in a perspective illustration. Position shown, the arrangement of the secondary parts of
- Support body is illustrated.
- FIGS. 8 and 9 show details of an embodiment of a current detection device with setting elements and an access lock for these setting elements.
- the low-voltage circuit breaker 1 shown schematically in FIG. 1 has a housing 2, on the rear wall of which 13 busbars 3 and 4 protrude for connection to an external circuit.
- the busbars 3 and 4 belong to a switch contact system 5 which has a fixed switch contact 6 and a movable switch contact 7.
- Above the switching contact system 5 there is an arc extinguishing chamber 10 for extinguishing switching arcs occurring when the switching contacts 6 and 7 are opened.
- the movable switch contact 7 is attached to a movable contact carrier 11 which can be actuated by a drive device 12 for closing and opening.
- the current conductors 3 and 4 are directly connected to the switch contact arrangement 5 m and are supported on a rear wall 13 of the housing 2 against all forces.
- the opening of the switch contact arrangement 7 in the event of a fault is controlled by a triggering device 14, which is indicated above the drive device 12.
- the triggering device 14 receives signals from a current detection device 15, to which the lower part of the current conductor 4 belongs, which is surrounded by a secondary part 16 of a current sensor.
- this can be an inductive current transformer, an ironless current transformer based on a Rogowski coil and sensors acting according to other known principles.
- a current detection device Auxiliary current transformers are also understood in the present context, which are provided in a known manner for supplying the electronic release device 14 with an operating or auxiliary energy.
- FIGs 2, 3 and 4 illustrate how the secondary parts 16 are arranged and housed in the three-pole version of the circuit breaker 1.
- a supporting body 20 which is separate for all the poles of the circuit breaker 1 and which can consist of a molding material as is also used for the production of housing parts of the circuit breaker 1.
- the support body 20 has a corresponding rectangular passage opening 21, which, as can be seen in particular in FIG. 3, lies in the plane of the rear wall 13 of the housing 2 of the circuit breaker 1, so that the Support of the busbars 3 is as far as possible from the fixed switching contact 6 and thus a good support effect is achieved.
- Each of the passage openings 21 is surrounded by a receiving chamber 22, which serves to receive the secondary parts 16 of the current detection devices 15.
- current transformers can also be accommodated in the receiving chambers 22, which serve to supply energy to the triggering device 14.
- the supporting body 20 For attachment to the rear side of the circuit breaker 1, the supporting body 20 has a web 23 on its lower long edge, for which a corresponding groove is provided on the rear wall 13 of the circuit breaker 1. Recesses 24 on the edge and through openings 25 provided between the poles on the longitudinal edge of the support body 20 opposite the web 23 are for fastening means, in particular provided in the housing 2 engaging screws. In connection with the web 23, a secure mounting of the support body 20 on the rear wall 13 of the housing 2 (FIG. 1) is thereby achieved.
- a Rogowski coil 26 with indicated connection lines 27 is shown in FIG. 5, which corresponds to the secondary part 16 in FIG.
- Such a coil supplies an electronically evaluable signal for controlling the trigger device 14 mentioned.
- This requires auxiliary energy in order to carry out the necessary evaluations and calculations and to be able to actuate a trigger magnet if required.
- a separate auxiliary current transformer is provided with a secondary part 31 according to FIG. 6, the primary winding as in
- the case of the Rogowski coil 26 is formed by the associated current conductor 4 of the circuit breaker 1 (FIG. 1).
- the secondary part 31 shown in FIG. 6 comprises an iron core 32 and a secondary winding 33 sitting thereon.
- a current conductor serving as the primary winding is indicated by dash-dotted lines for simplification.
- FIG. 7 shows the accommodation of the secondary parts according to FIGS. 5 and 6 in the receiving chambers 22 of the supporting body 20.
- the receiving chamber 22 is hollow cylindrical on the outside and adapted to the diameter of the Rogowski coil 26.
- the inner boundary of the receiving chamber is formed by a collar 34 which surrounds the passage opening 21.
- a state occurring during the manufacture of a current detection device 15 is shown. shows, in which a Rogowski coil 26 and a secondary part 31 of an auxiliary current transformer are introduced into a receiving chamber 22.
- the Rogowski coil 26 rests on the bottom of the receiving chamber 22 and is aligned with its hollow cylindrical circumferential surface. Above this is the secondary part 31 of the auxiliary current transformer, which sits on the collar 34.
- potting with a synthetic resin compound is preferred. This encloses the coils and connecting cables of the secondary parts and therefore provides reliable protection against all external influences.
- Such potting with a synthetic resin compound 35 is illustrated in the middle part of FIG.
- FIG. 7 also shows that a lower region 36 of the support body 20 between the middle and the right receiving chamber 22 is designed to be closed.
- the setting members 30 (FIG. 3) for the voltage dividers assigned to the current sensors or Rogowski coils 26 are located in this area. These need only be adjusted once after the completion of the current detection device 15.
- an access lock 37 according to FIGS. 8 and 9 can be provided. It is a cover which is fastened by means of a screw and secured against rotation by a lug 38.
- the combination of the secondary sensors and auxiliary current transformers of all poles of a circuit breaker creates a ready-to-install and electrically balanced assembly.
- a calibration of the secondary parts as well a complete test of a multi-pole current detection device can be carried out before the installation of the circuit breaker, which is a significant relief. This eliminates errors such. B reliably avoided by confusing previously selected and provided secondary parts. It also ensures that all secondary parts are arranged at a fixed and unchangeable distance and that later errors and tolerance problems are excluded.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/182,872 US6754059B2 (en) | 2000-02-01 | 2001-01-30 | Multi-pole low voltage circuit breaker with one current measuring device per line |
JP2001557131A JP4683809B2 (ja) | 2000-02-01 | 2001-01-30 | 極毎の電流検出装置を備えた多極低電圧遮断器 |
EP01909561A EP1252693A1 (de) | 2000-02-01 | 2001-01-30 | Mehrpoliger niederspannungs-leistungsschalter mit einem stromerfassungsgerät je pol |
HK03102550A HK1050431A1 (en) | 2000-02-01 | 2003-04-09 | Multi-pole low voltage circuit breaker with one current measuring device per line. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10004833A DE10004833A1 (de) | 2000-02-01 | 2000-02-01 | Mehrpoliger Niederspannungs-Leistungsschalter mit einem Stromerfassungsgerät je Pol |
DE10004833.1 | 2000-02-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001057979A1 true WO2001057979A1 (de) | 2001-08-09 |
Family
ID=7629759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/000428 WO2001057979A1 (de) | 2000-02-01 | 2001-01-30 | Mehrpoliger niederspannungs-leistungsschalter mit einem stromerfassungsgerät je pol |
Country Status (7)
Country | Link |
---|---|
US (1) | US6754059B2 (de) |
EP (1) | EP1252693A1 (de) |
JP (1) | JP4683809B2 (de) |
CN (1) | CN1218454C (de) |
DE (1) | DE10004833A1 (de) |
HK (1) | HK1050431A1 (de) |
WO (1) | WO2001057979A1 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003056594A1 (en) * | 2001-12-28 | 2003-07-10 | Abb T&D Technology Ltd. | Circuit breakers with integrated current and/or voltage sensors |
DE102005016545A1 (de) * | 2005-04-08 | 2006-10-12 | Abb Patent Gmbh | Modulrückwand für ein Schaltanlagenmodul, Schaltanlagenmodul und elektrische Schaltanlage |
DE102008050753A1 (de) * | 2008-10-07 | 2010-04-08 | Siemens Aktiengesellschaft | Verfahren zum Erfassen einer physikalischen Größe durch einen Leistungsschalter |
US8163574B2 (en) | 2009-05-08 | 2012-04-24 | Eaton Corporaton | System and method for sensing voltage in medium-to-high voltage applications |
DE102011004968A1 (de) * | 2011-03-02 | 2012-09-06 | Siemens Aktiengesellschaft | Elektrischer Schalter |
CN104466702A (zh) * | 2014-12-01 | 2015-03-25 | 广西电网有限责任公司玉林供电局 | 10kV开关柜快速灭弧装置 |
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US7110431B2 (en) * | 2001-03-14 | 2006-09-19 | Mercury Computer Systems, Inc. | Hardware and software for performing computations in a short-code spread-spectrum communications system |
US6865073B2 (en) * | 2003-03-06 | 2005-03-08 | General Electric Company | Panelboard metering arrangement and method of assembly thereof |
JP2008547155A (ja) * | 2005-02-18 | 2008-12-25 | エアパックス コーポレーション | 付属センサユニットを備える回路遮断器を含む装置 |
US7511229B2 (en) * | 2005-06-02 | 2009-03-31 | Liebert Corporation | Sensor module, system, and method for sensors in proximity to circuit breakers |
US7477501B2 (en) * | 2005-06-02 | 2009-01-13 | Liebert Corporation | System and method of mounting current transducers in proximity to circuit breakers |
US7652871B2 (en) * | 2006-01-04 | 2010-01-26 | General Electric Company | Methods and systems for electrical power sub-metering |
EP2056115A1 (de) * | 2007-11-03 | 2009-05-06 | Quaere Novum Enterprises | Automatische Bereichsauswahl für intelligente Stromzähler in Haushalten und kleinen Unternehmen |
US7843189B2 (en) * | 2008-12-18 | 2010-11-30 | General Electric Company | Current sensor having coil mounted to current carrying bus and related system |
JP2011034714A (ja) * | 2009-07-30 | 2011-02-17 | Mitsubishi Electric Corp | 遮断器 |
CN101882540B (zh) * | 2010-07-08 | 2012-07-18 | 江苏辉能电气有限公司 | 一种低压断路器手柄锁定装置及锁定方法 |
CN102034649B (zh) * | 2010-12-09 | 2013-07-17 | 平高集团有限公司 | 一种内置低压侧电子电流互感器的断路器 |
CN102074345B (zh) * | 2010-12-09 | 2013-02-13 | 平高集团有限公司 | 一种内置式高压侧电子电流互感器及断路器 |
DE102012201992A1 (de) * | 2012-02-10 | 2013-08-14 | Siemens Aktiengesellschaft | Kombinationswandleranordnung und Schaltgerät |
WO2015064118A1 (ja) * | 2013-10-30 | 2015-05-07 | 三菱電機株式会社 | 変流器支持装置及びその変流器支持装置を用いたスイッチギヤ |
KR101522272B1 (ko) | 2014-06-30 | 2015-05-21 | 엘에스산전 주식회사 | 회로 차단기의 중성 극 변류기 모듈 및 중성 극 전류 검출 장치 |
CN106057454A (zh) * | 2016-06-27 | 2016-10-26 | 国网江苏省电力公司盐城供电公司 | 一种中高压零序电流互感器 |
DE102019213152A1 (de) * | 2019-08-30 | 2021-03-04 | Siemens Aktiengesellschaft | Rogowski-Transformator |
EP4121784A1 (de) * | 2021-01-07 | 2023-01-25 | eTactica ehf. | Unterzählsystem |
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US4013985A (en) * | 1976-04-15 | 1977-03-22 | Cutler-Hammer, Inc. | Three-phase current transformer |
US4497992A (en) | 1982-01-28 | 1985-02-05 | Mitsubishi Denki Kabushiki Kaisha | Air circuit breaker |
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US4673779A (en) | 1985-02-07 | 1987-06-16 | Siemens Aktiengesellschaft | Low-voltage circuit breaker including a current transformer |
USD347623S (en) | 1991-07-05 | 1994-06-07 | Mitsubishi Denki Kabushiki Kaisha | Air circuit breaker |
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US347623A (en) * | 1886-08-17 | Vehicle-hub | ||
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JPS57134835U (de) * | 1981-02-14 | 1982-08-23 | ||
JPS58220322A (ja) * | 1982-06-17 | 1983-12-21 | 富士電機株式会社 | 真空しや断装置 |
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JPH0422509Y2 (de) * | 1988-09-07 | 1992-05-22 | ||
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DE19706019A1 (de) * | 1997-02-07 | 1998-08-13 | Siemens Ag | Niederspannungs-Leistungsschalter mit wahlweise einbaubarem Meßwandler |
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2000
- 2000-02-01 DE DE10004833A patent/DE10004833A1/de not_active Ceased
-
2001
- 2001-01-30 WO PCT/DE2001/000428 patent/WO2001057979A1/de active Application Filing
- 2001-01-30 CN CN01804014.4A patent/CN1218454C/zh not_active Expired - Fee Related
- 2001-01-30 JP JP2001557131A patent/JP4683809B2/ja not_active Expired - Fee Related
- 2001-01-30 US US10/182,872 patent/US6754059B2/en not_active Expired - Fee Related
- 2001-01-30 EP EP01909561A patent/EP1252693A1/de not_active Withdrawn
-
2003
- 2003-04-09 HK HK03102550A patent/HK1050431A1/xx not_active IP Right Cessation
Patent Citations (5)
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US4013985A (en) * | 1976-04-15 | 1977-03-22 | Cutler-Hammer, Inc. | Three-phase current transformer |
US4497992A (en) | 1982-01-28 | 1985-02-05 | Mitsubishi Denki Kabushiki Kaisha | Air circuit breaker |
DE3328785A1 (de) * | 1983-08-10 | 1985-02-28 | Brown, Boveri & Cie Ag, 6800 Mannheim | Durchfuehrungsisolator fuer eine schottwandung in einem anlagenschrank fuer mittelspannungsschalt- und -verteileranlagen |
US4673779A (en) | 1985-02-07 | 1987-06-16 | Siemens Aktiengesellschaft | Low-voltage circuit breaker including a current transformer |
USD347623S (en) | 1991-07-05 | 1994-06-07 | Mitsubishi Denki Kabushiki Kaisha | Air circuit breaker |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003056594A1 (en) * | 2001-12-28 | 2003-07-10 | Abb T&D Technology Ltd. | Circuit breakers with integrated current and/or voltage sensors |
US7218493B2 (en) | 2001-12-28 | 2007-05-15 | Abb Technology Ag | Circuit breakers with integrated current and/or voltage sensors |
DE102005016545A1 (de) * | 2005-04-08 | 2006-10-12 | Abb Patent Gmbh | Modulrückwand für ein Schaltanlagenmodul, Schaltanlagenmodul und elektrische Schaltanlage |
US7969744B2 (en) | 2005-04-08 | 2011-06-28 | Abb Ag | Module rear wall for a switchgear assembly module, switchgear assembly module and electrical switchgear assembly |
DE102005016545B4 (de) * | 2005-04-08 | 2014-12-04 | Abb Ag | Modulrückwand für ein Schaltanlagenmodul, Schaltanlagenmodul und elektrische Schaltanlage |
DE102008050753A1 (de) * | 2008-10-07 | 2010-04-08 | Siemens Aktiengesellschaft | Verfahren zum Erfassen einer physikalischen Größe durch einen Leistungsschalter |
US8163574B2 (en) | 2009-05-08 | 2012-04-24 | Eaton Corporaton | System and method for sensing voltage in medium-to-high voltage applications |
DE102011004968A1 (de) * | 2011-03-02 | 2012-09-06 | Siemens Aktiengesellschaft | Elektrischer Schalter |
US8610522B2 (en) | 2011-03-02 | 2013-12-17 | Siemens Aktiengesellschaft | Electrical switch |
DE102011004968B4 (de) * | 2011-03-02 | 2014-07-10 | Siemens Aktiengesellschaft | Elektrischer Schalter |
CN104466702A (zh) * | 2014-12-01 | 2015-03-25 | 广西电网有限责任公司玉林供电局 | 10kV开关柜快速灭弧装置 |
Also Published As
Publication number | Publication date |
---|---|
JP4683809B2 (ja) | 2011-05-18 |
CN1395755A (zh) | 2003-02-05 |
EP1252693A1 (de) | 2002-10-30 |
US6754059B2 (en) | 2004-06-22 |
HK1050431A1 (en) | 2003-06-20 |
JP2003522390A (ja) | 2003-07-22 |
DE10004833A1 (de) | 2001-08-02 |
CN1218454C (zh) | 2005-09-07 |
US20030001702A1 (en) | 2003-01-02 |
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