EP1544879A1 - Disjoncteur rapide pour moyenne et haute tension - Google Patents

Disjoncteur rapide pour moyenne et haute tension Download PDF

Info

Publication number: EP1544879A1
Authority: EP; European Patent Office
Prior art keywords: contact; switching; rotational; torsion spring; switch
Prior art date: 2003-12-18
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

Application number

EP03405906A

Other languages

German (de)

English (en)

Other versions

EP1544879B1 (fr

Inventor

Kaveh Niayesh

Lutz Niemeyer

Magnus Backman

Willi Paul

Gerhard Salge

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.)

ABB Research Ltd Switzerland

Original Assignee

ABB Research Ltd Switzerland

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.)

2003-12-18

Filing date

2003-12-18

Publication date

2005-06-22

2003-12-18 Application filed by ABB Research Ltd Switzerland filed Critical ABB Research Ltd Switzerland

2003-12-18 Priority to DE50306400T priority Critical patent/DE50306400D1/de

2003-12-18 Priority to AT03405906T priority patent/ATE352851T1/de

2003-12-18 Priority to EP03405906A priority patent/EP1544879B1/fr

2005-06-22 Publication of EP1544879A1 publication Critical patent/EP1544879A1/fr

2007-01-24 Application granted granted Critical

2007-01-24 Publication of EP1544879B1 publication Critical patent/EP1544879B1/fr

2023-12-18 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3042—Power arrangements internal to the switch for operating the driving mechanism using spring motor using a torsion spring
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
- H01H1/2041—Rotating bridge
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H2003/3084—Kinetic energy of moving parts recuperated by transformation into potential energy in closing or opening spring to be used in next operation

Definitions

the invention relates to the field of primary technology for electrical circuit breakers, in particular for Power circuit in high and medium voltage technology. It is based on a method and a device for power switching as well as a switchgear with such a circuit breaker according to the preamble of independent claims.
the invention relates to a prior art, such as it is known from EP 1 180 776 A1.
There will be one High or medium voltage switch with an electrodynamic rotationally driven bridge contact piece discloses that in the contact-closed state the distance bridged between the two fixed contacts and opens two contact gaps when opening contact.
the two resulting partial arcs lie in series and are characterized Easier erasable than a single arc.
the Electrodynamic drive each includes a coil for Contact opening and closing contact, each by electromagnetic repulsion between the coil current and the eddy current induced in the bridge contact piece Bridge contact piece in a contact-opening or contact-closing Rotation is offset.
EP 1 067 569 a high or medium voltage switch is used with an electrodynamically translatory driven ring contact disclosed.
U.S. Pat. 3'268'687 becomes a high voltage circuit breaker specified that an electrodynamic Thomson drive for very fast opening of the contacts having.
the drive comprises a conductive disc, the electromagnetically by coil-induced eddy current forces is driven while a fast contact opening or contact closing translational movement performs.
the necessary switching speed is through achieved a capacitor discharge, which is close to a Current zero crossing is started.
Other embodiments relate to a translatory movement of a tubular, axially displaceable contact piece and a Bending movement of a resilient contact sheet clamped on one side, supported by the spring restoring force is moved by a Thomson drive.
the bending elastic spring oscillates during the switching process through the neutral position and into a counter-deflection, causing a part of the spring energy recovered and is stored.
the object of the present invention is to provide a method a device and an electrical switchgear with Such a device for power switching with a rotary Specify contact drive, which is characterized by short Switching time and low switching energy requirements.
This object is achieved according to the invention by the features of solved independent claims.
the invention is a method for power switching, in particular in a switch for medium or high voltage, with between two spaced fixed electrodes a rotationally movable Switching contact piece is arranged, which by a rotary drive in a first rotational switching direction for Purpose of the contact opening and in a second rotational shift direction for the purpose of contact closure of the fixed electrodes is placed in a rotary motion, the Switch contact piece by mechanical torsion spring force is rotated and the Torsionsfederkraft open to contact and the torsional spring force to contact closure of one common mechanical torsion spring mechanism applied become.
this becomes rotational movable contact piece during the switching process is not more by an electrodynamic but by one mechanical torsion drive in contact-opening or contact-closing Rotation offset.
This will be the first and the second rotation switching direction by the same Torsion spring mechanism driven.
a Thomson drive that is low energy efficient and often large-volume, omitted or only as a small one Support unit are designed. This is eliminated or also reduces the need for large capacitors and switches, z. B. thyristors, for driving of the Thomson drive. So be with little constructional Effort and with little need for switching energy very fast on and off switching power switch created.
a rotational energy of the switching contact piece when opening contact and / or Kunststoffschliessen partially recovered.
the Rotary drive thus includes a device for recovery and storing excess torsional stress from a previous shift.
the torsion spring mechanism in opposite Overshoot direction to original bias direction and block him in as far as possible Overshoot deflected position. This way will a much better energy efficiency in terms of achieved switching energy reached.
rotational energy losses of the switching contact piece when opening contact and / or at the contact closure by a Torsionsspannvorraum recharged can be a Torsion clamping device.
the torsion clamping device can be a Thomson drive or a stepper motor. This can be done with relatively small electric boost drives high switching energies and therefore very fast Switching times can be achieved.
the required capacitors, Thyristors or general switch and / or Stepper motors can be designed much more compact and economical become.
the invention relates to a Power switch for power switching, in particular for Execution of the method described above, comprising two spaced solid electrodes, a rotationally movable Switch contact piece and a rotary drive for Turning the switching contact piece in a first rotational switching direction for the purpose of establishing contact and in one second rotational shift direction for the purpose of contact closure the fixed electrodes, wherein the rotary drive a common mechanical torsion spring mechanism for rotating the switching contact piece in both the first rotational switching direction as well as in the second rotational shift direction having.
the rotary drive comprises a latching device for partial recovery mechanical rotational switching energy and a torsional clamping device for mechanical recharging of rotational switching energy losses.
Fig. 1a, 1b shows schematically in plan view a power switch 1 with two fixed electrodes 2a, 2b and a switching contact piece 2c, here a bridge contact piece 2c, which is about a rotation axis 4, here a symmetry or central axis 4, is rotatably supported and by a rotary drive 3, 6-9 is driven.
the desk 1 is in an encapsulated and optionally evacuated or isoliergastellen switch housing 5 is arranged.
the Rotary drive is typically, but not necessarily, arranged outside and above a gas-tight Rotary feedthrough 6, z.
B. a magnetic rotary feedthrough or a metal bellows bushing, with the switching contact piece 2c mechanically connected.
the rotary drive 3, 6-9 a mechanical torsion spring mechanism 3, the Turning the switching contact piece 2c both in a first Rotation switch 30 for contact opening as well as in a second rotational shift direction 31 for contact closure serves.
the rotary drive 3, 6-9 comprises a latching device 7 to partial recovering mechanical rotational switching energy and / or a Torsionsspannvortechnisch 9 for mechanical recharging of rotational switching energy losses. These arise through Friction and other irreversible processes. Further is a switch controller 8 for controlling the latching device 7 by means of switching commands 8a and Torsionsspannvortechnisch 9 by means of Torsionsspannbeplane 8b available.
Fig. 2a and Fig. 2b show in detail in plan view and Side view of the functioning of the rotating bridge contact 2c of length 1 and width b.
the width b or more precisely the conductor cross section is according to the required Current carrying capacity of the circuit breaker 1 selected.
At the fixed electrodes 2a, 2b are resilient contacts 10, z. B.
multicontact springs 10 present, the one resilient behavior of the fixed electrodes 2a, 2b, symbolized through 10 ', cause and ensure that a high Contact force, a low contact resistance and a low impedance Current transfer between the electrodes 2a, 2b, 2c is guaranteed. This also prevents that the contacts 2a, 2b, 2c at nominal current excessive heat up and overflow through the contact closed Weld switch 1 together. In addition, will be by the spring contacts 10, the dynamic reaction forces collected and compensated at the contact closure 31.
Fig. 2b shows four angular positions of the bridge contact piece 2c and thus of the torsion spring mechanism 3, namely a force-free neutral angular deflection 11b of Torsion spring mechanism 3, which between a contact-closed Angular displacement 11a and a contact-opened Angle deflection 11c is located, as well as a through the Torsionsspannvorraum 9 (not visible here) biased contact-opened angular deflection 11d.
the switching contact piece 2c always in the same direction rotates and, if necessary, the biasing and direction of rotation of the torsion spring mechanism 3 is alternated.
the contact opening typically draws an arc.
a bridge contact switching piece 2c in the contact columns 13a, 13b two Partial arcs 12a, 12b, which are in series with each other. This allows currents at higher voltage levels and with less effort in arc extinguishing switched off and be turned on.
the power switch 1 for both rotational switch directions 30, 31 fast switching and in particular a fast-switching synchronous switch 1.
Fig. 3a-3d show schematically an embodiment of the operation of the latching device 7, d. H. their latching means 7a, 7b, 11a, 11b, 11c, 11d, for a contact-opening rotational switching direction 30.
the Verklinkungsstoff 7a, 7b, 11a, 11b, 11c, 11d serve for partial recovery mechanical rotary switching energy when opening contact.
the latching device 7 has: in Fig. 3a, a contact-closed Torsionsarret ist 7a, 11a (comprising a rotatable opening pawl 7a for engagement in a counterpart 11a) for contact closure the torsion spring mechanism 3 and for storing the contact-opening rotational switching energy; in Fig. 3b and Fig.
a contact-opened Torsionsarrettechnik 7b, 11c (comprising a rotatable closure pawl 7b for engagement in a counterpart 11c) for partially recovering the contact-opening rotational switching energy; and in Fig. 3d a preloaded contact-opened Torsionsarret réelle 7b, 11d (comprising the rotatable Closing pawl 7b for engagement in a counterpart 11d) for recharging rotational losses and for storing the entire contact-closing rotational switching energy of the torsion spring mechanism 3.
the closure pawl 7b prevents the snapback 30 'of the overshooting torsion spring mechanism 3.
the Torsionsspannvorraum 9 only has the energy loss for example, about 36% of the stored total rotational switching energy (corresponding to a constant friction torque of 10% of the maximum torque) compensate and recharge.
the torsion spring 3 which is in particular a torsion spring 3 can be reduced in size.
the frictional losses in this case are estimated to be 14 J for a contact-opening switching operation.
the invention also provides a method for current switching, in particular in a switch 1 for medium or high voltage of the type described, wherein between two spaced fixed electrodes 2a, 2b a rotatably movable switching contact piece 2c is arranged by a rotary drive 3, 6-9 in a first Rotation switching direction 30 for the purpose of contact opening and in a second rotational switching direction 31 for the purpose of contact closure of the fixed electrodes 2a, 2b is set in a rotary motion, wherein the switching contact piece 2c by mechanical torsion spring force F f0 , F fs is rotated and the torsional spring force F f0 for contact opening and the Torsion spring force F fs for contact closure by a single common mechanical torsion spring mechanism 3 are applied.
a rotatably movable switching contact piece 2c is arranged by a rotary drive 3, 6-9 in a first Rotation switching direction 30 for the purpose of contact opening and in a second rotational switching direction 31 for the purpose of contact closure of the fixed electrodes 2a
the rotational energy of the switching contact piece is preferred 2c when opening contact and / or contact closure partially recovered.
the first and second rotation switching directions 30, 31 are typically opposite each other.
the switching contact piece 2c at the contact opening and / or Contact closure a force-free neutral angular deflection 11b of the torsion spring mechanism 3 or the switching contact piece Go through 2c.
the contact opening and the Contact closure should be synchronous and at high speed while avoiding or reducing arcing 12a, 12b are performed.
inventions relate u.a. the use as a switch 1 for medium or high voltages and / or Currents, as circuit breaker 1, disconnector, current limiter or current-limiting switch in power supply networks.
the invention also includes an electrical switchgear, in particular a high or medium voltage switchgear, characterized by a device 1 as previously described.

Landscapes

Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Mechanisms For Operating Contacts (AREA)

EP03405906A 2003-12-18 2003-12-18 Disjoncteur rapide pour moyenne et haute tension Expired - Lifetime EP1544879B1 (fr)

Priority Applications (3)

Application Number	Priority Date	Filing Date	Title
DE50306400T DE50306400D1 (de)	2003-12-18	2003-12-18	Schneller Leistungsschalter für Hoch-oder Mittelspannung
AT03405906T ATE352851T1 (de)	2003-12-18	2003-12-18	Schneller leistungsschalter für hoch-oder mittelspannung
EP03405906A EP1544879B1 (fr)	2003-12-18	2003-12-18	Disjoncteur rapide pour moyenne et haute tension

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP03405906A EP1544879B1 (fr)	2003-12-18	2003-12-18	Disjoncteur rapide pour moyenne et haute tension

Publications (2)

Publication Number	Publication Date
EP1544879A1 true EP1544879A1 (fr)	2005-06-22
EP1544879B1 EP1544879B1 (fr)	2007-01-24

Family

ID=34486554

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP03405906A Expired - Lifetime EP1544879B1 (fr)	2003-12-18	2003-12-18	Disjoncteur rapide pour moyenne et haute tension

Country Status (3)

Country	Link
EP (1)	EP1544879B1 (fr)
AT (1)	ATE352851T1 (fr)
DE (1)	DE50306400D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1887594A2 (fr)	2006-08-09	2008-02-13	Siemens Aktiengesellschaft	Engrenage pour un commutateur électromécanique
US9431184B2 (en)	2013-11-06	2016-08-30	Lsis Co., Ltd.	Circuit breaker

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR101522267B1 (ko) *	2013-11-06	2015-05-21	엘에스산전 주식회사	회로 차단기
KR101522266B1 (ko) *	2013-11-06	2015-05-21	엘에스산전 주식회사	회로 차단기

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB561590A (en) *	1942-11-20	1944-05-25	Reyrolle A & Co Ltd	Improvements in or relating to operating means for electric switchgear
US2846622A (en) *	1956-09-21	1958-08-05	Gen Electric	Operating mechanism for an electric circuit breaker
US3268687A (en) *	1963-05-20	1966-08-23	Waghorne John Henry	High speed device for interrupting and completing high voltage power circuits
US5777404A (en) *	1994-11-07	1998-07-07	Has; Peter Victor	Rotating actuator

2003
- 2003-12-18 AT AT03405906T patent/ATE352851T1/de not_active IP Right Cessation
- 2003-12-18 EP EP03405906A patent/EP1544879B1/fr not_active Expired - Lifetime
- 2003-12-18 DE DE50306400T patent/DE50306400D1/de not_active Expired - Fee Related

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB561590A (en) *	1942-11-20	1944-05-25	Reyrolle A & Co Ltd	Improvements in or relating to operating means for electric switchgear
US2846622A (en) *	1956-09-21	1958-08-05	Gen Electric	Operating mechanism for an electric circuit breaker
US3268687A (en) *	1963-05-20	1966-08-23	Waghorne John Henry	High speed device for interrupting and completing high voltage power circuits
US5777404A (en) *	1994-11-07	1998-07-07	Has; Peter Victor	Rotating actuator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1887594A2 (fr)	2006-08-09	2008-02-13	Siemens Aktiengesellschaft	Engrenage pour un commutateur électromécanique
EP1887594A3 (fr) *	2006-08-09	2008-05-07	Siemens Aktiengesellschaft	Engrenage pour un commutateur électromécanique
US9431184B2 (en)	2013-11-06	2016-08-30	Lsis Co., Ltd.	Circuit breaker

Also Published As

Publication number	Publication date
EP1544879B1 (fr)	2007-01-24
DE50306400D1 (de)	2007-03-15
ATE352851T1 (de)	2007-02-15

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DE102010016950B4 (de)	2017-02-09	Elektromagnetisches Relais
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