EP0883145B1 - Méthode de contrôle et diagnostic du fonctionnement d'un appareillage électrique à haute tension - Google Patents

Méthode de contrôle et diagnostic du fonctionnement d'un appareillage électrique à haute tension Download PDF

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Publication number
EP0883145B1
EP0883145B1 EP98401154A EP98401154A EP0883145B1 EP 0883145 B1 EP0883145 B1 EP 0883145B1 EP 98401154 A EP98401154 A EP 98401154A EP 98401154 A EP98401154 A EP 98401154A EP 0883145 B1 EP0883145 B1 EP 0883145B1
Authority
EP
European Patent Office
Prior art keywords
pressure
chamber
circuit breaker
signal
sensor
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
Application number
EP98401154A
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German (de)
English (en)
French (fr)
Other versions
EP0883145A1 (fr
Inventor
Jean Marmonier
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.)
Grid Solutions SAS
Original Assignee
Alstom T&D SA
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Filing date
Publication date
Application filed by Alstom T&D SA filed Critical Alstom T&D SA
Publication of EP0883145A1 publication Critical patent/EP0883145A1/fr
Application granted granted Critical
Publication of EP0883145B1 publication Critical patent/EP0883145B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0062—Testing or measuring non-electrical properties of switches, e.g. contact velocity

Definitions

  • the invention relates to a control and diagnostic method. the operation of high voltage electrical equipment which includes, inside a switching chamber containing a gas under pressure, contacts of which at least one mobile is moved by an operating rod.
  • the invention applies more particularly to the control and diagnostic of the operation of so-called new circuit breakers low-energy control generation, and can be applied to other devices such as a disconnect switch or a disconnect switch earth if the technology of these devices is similar to this! so-called new generation circuit breakers.
  • the breaking chamber is dismantled which immobilizes this circuit breaker for a certain time.
  • the aim of the invention is to propose a non-intrusive method for checking and diagnosing the operation of a circuit breaker, to say not requiring the disassembly of the cut-off chamber this one.
  • a malfunction can for example result from a blockage in open or closed position of a shut-off chamber valve circuit breaker, or an abnormally high mechanical shock - movable contacts when the circuit breaker opens or closes.
  • the method according to the invention records in addition to the signal representative of the time evolution of pressure, a signal representative of the time evolution of the displacement of the movable contact using a sensor arranged at outside of the switching chamber and mounted to detect the displacement of the operating rod.
  • the simultaneous recording of the two pressure signals and displacement can detect a malfunction with a increased safety, the signal representative of the movement being used to confirm the diagnosis based on the pressure representative signal.
  • Figure 1 shows a sectional cut-off chamber transverse with a pressure sensor and a position sensor mounted outside this room.
  • Figures 2a and 2b illustrate a pressure record and a position record corresponding to an operation of reference of a circuit breaker respectively to closing and to the opening.
  • Figures 3a and 3b illustrate a malfunction of the circuit breaker assigned to a blocking in the open position of valves arranged on a rear ring of the circuit breaker respectively at the closing and opening.
  • Figures 4a and 4b illustrate a malfunction of the circuit breaker assigned to a blocking in the closed position of valves arranged on a rear ring of the circuit breaker respectively at the closing and opening.
  • Figures 5a and 5b illustrate a malfunction of the circuit breaker assigned to a blocking in the open position of valves arranged on a front ring of the circuit breaker respectively at the closing and opening.
  • Figures 6a and 6b illustrate a malfunction of the circuit breaker assigned to a blocking in the closed position of valves arranged on a front ring of the circuit breaker respectively at the closing and opening.
  • Figures 7a to 7c illustrate a pressure record reflecting respectively normal mechanical shock, abnormally high at the end of opening, and abnormally high during opening of the circuit breaker.
  • the invention provides a method for monitoring and diagnosing the operation of high voltage electrical equipment, and particular of a circuit breaker.
  • a circuit breaker called new generation with low control energy comprises, in a breaking chamber defined by a sealed envelope 5 filled with a dielectric gas such as SF 6 under a pressure of a few bars, a fixed tubular main contact 1 which cooperates with a movable tubular main contact 3, the contact 3 being movable in the axial direction D.
  • the fixed main contact 1 is secured to a fixed arcing contact 7 which cooperates with a movable arcing contact 9 secured to the contact main movable 3.
  • the movable contacts 3 and 9 are moved in the direction D by an operating rod 11 which exits through the side 5A of the casing 5.
  • the operating rod is guided in sliding by a support block 13 mounted fixed at inside the envelope resting on side 5A.
  • the movable main contact 3 and the movable arcing contact 9 are coaxial and arranged parallel to the longitudinal direction D.
  • a front crown 15 is disposed between the two movable contacts 3 and 9 in a plane perpendicular to the longitudinal direction D. It holds secured to the two movable contacts 3 and 9 and opens via of valves 151 and 152 on a blowing volume V1 closed by a blowing nozzle 17.
  • a rear crown 19 is arranged between the two contacts mobile 3 and 9 in a plane perpendicular to the longitudinal direction D. It slides in relation to the two movable contacts and opens by through two valves 191 and 192 on a volume of compression-depression V2 closed by the front crown 15.
  • a spring 20 is supported by one end on the block of support 13 and by the other end on the face of the rear crown 19 which does not carry the valves 191 and 192.
  • the method according to the invention uses a first sensor which records the time evolution of the pressure prevailing in the cut-off chamber when opening or closing the breaker.
  • a pressure sensor 21 to record the evolution pressure in the cut-off chamber is by example an elastic membrane sensor.
  • a temperature compensated pressure sensor which behaves like a pressure sensor when changing rapid pressure inside the interrupting chamber due to the thermal inertia of such a sensor, and which also makes it possible to monitor the density of the dielectric gas 6.
  • the pressure sensor is fixed from the outside to the metal casing 5 of the circuit breaker.
  • the gas 6 present in the switching chamber is connected with the pressure sensor 21 via a conduit 23 formed in the thickness of the metal casing 5.
  • the method according to the invention uses a second sensor which records the time evolution of the position of the mobile contact (s) during opening or closing the circuit breaker.
  • a position sensor 25 to record an evolution position of the mobile contact (s) in the break is for example an optical cell, or a sensor of inductive or Hall effect displacement. It is attached to the outside of the metal casing 5 for example on the side 5A of the casing to detect the displacement of the rod 11 in the direction D.
  • the P and L signals produced by the two pressure sensors 21 and position 25 are supplied to a unit 30.
  • Unit 30 can be a display and / or data processing unit.
  • FIG. 2a a reference operation when the circuit breaker results in a pressure reference record 2a1 flat-shaped and a position reference record 2a2 in the form of a rising ramp as indicated by the arrow Fm.
  • the compression-depression volume V2 When closing, the compression-depression volume V2 is initially zero, the front 15 and rear 19 crowns being in contact.
  • the pressure record 2a1 is explained by the fact that the displacement of the movable contact 9 in the direction indicated by the arrow f of Figure 1, causes the opening of the valves 191 and 192 of the rear crown 19 which allow the dielectric gas to circulate freely so that no depression is created in the chamber cut. At the end of the stroke, the valves close the circuit breaker being ready for opening.
  • the 2a1 recording ends with relatively fast pressure oscillations that reflect the wave sound generated by the mechanical shock of the moving main contact 3 with the main contact fixed 1.
  • a reference operation at the opening of the circuit breaker results in a pressure reference record 2b1 curved and a position reference record 2b2 in shape of a descending ramp as indicated by the arrow Fd.
  • the compression-depression volume V2 When opening, the compression-depression volume V2 is initially maximum, the front 15 and rear 19 crowns being separated by a maximum distance.
  • Pressure recording 2b1 is explained by the fact that the displacement of the movable contact 9 in the direction indicated by the arrow o in Figure 1, is accompanied by a compression of the gas contained in the compression-depression volume V2 which corresponds to a depression in the shutdown, and compression of the gas contained in the volume of blowing V1 defined by the blowing nozzle 17.
  • the valves 151 and 152 of the front crown 15 open to equalize gas pressure in the two compression-depression volumes V2 and blowing V1, and let out part of the gas compressed through the blowing nozzle to extinguish a possible arc electric when the opening is made under load.
  • the 2b1 recording ends with relatively fast oscillations carried by a slower oscillation pressure reflecting the sound wave generated by the shock mechanical of the front crown 15 with the rear crown 19.
  • Figures 3a, 4a, 5a, 6a show recordings of pressure and position when closing a circuit breaker under control.
  • Figures 3b, 4b, 5b, 6b show pressure records and position at the opening of this circuit breaker under control. These records reflect a breaker malfunction.
  • Figure 3a the closing of the circuit breaker under control is translated by two records of pressure 3a1 and position 3a2 similar to reference records 2a1 and 2a2.
  • Figure 3b the opening of the circuit breaker under control results in a pressure record 3b1 different from the pressure record reference 2b1 indicated in dotted lines, recording of position 3b2 being similar to the reference record 2b2.
  • the difference between records 2b1 and 3b1 reflect a blockage in the open position of the valves 191 and 192 of the rear crown 19. This difference can easily be detected automatically by a program in the data processing unit 30.
  • Figures 4a and 4b illustrate a malfunction of the circuit breaker assigned to a blockage in the closed position of the valves 191 and 192 of the rear crown 19.
  • the reference records in dotted lines.
  • the detection of the malfunction is done by detecting a difference between records 4a1 and 2a1 and 4a2 and 2a2.
  • the position record 4a2 reflects the existence of a significant retaining force exerted by a depression created in the compression-depression volume V2, and is used to confirm the diagnosis of blocking in the closed position of valves 191 and 192.
  • FIGs 5a and 5b illustrate a malfunction of the circuit breaker assigned to a blockage in the open position of the valves 151 and 152 of the front crown 15. We see that the detection of the malfunction occurs by detecting a difference between the records 5b1 and 2b1, 5b2 and 2b2.
  • Figures 6a and 6b illustrate a malfunction of the circuit breaker assigned to a blocking in the closed position of the valves 151 and 152 of the front crown 15. We see that the detection of the malfunction occurs by detecting a difference between the records 6b1 and 2b1, 6b2 and 2b2.
  • a frequency and amplitude analysis of oscillations in pressure records at the end or in progress opening or closing the circuit breaker allows you to control a normal mechanical shock or diagnose mechanical shock abnormally high between moving and stationary contacts or between front and rear crowns.
  • Figure 7a shows a pressure record representative of a normal mechanical shock in an operation of circuit breaker reference.
  • Figures 7b and 7c are given pressure records showing by comparison with the previous recording respectively a mechanical shock abnormal high at the end of opening and a mechanical shock or abnormal vibration during opening.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Testing Relating To Insulation (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Details Of Television Scanning (AREA)
  • Measuring Fluid Pressure (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP98401154A 1997-06-04 1998-05-14 Méthode de contrôle et diagnostic du fonctionnement d'un appareillage électrique à haute tension Expired - Lifetime EP0883145B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9706880 1997-06-04
FR9706880A FR2764431B1 (fr) 1997-06-04 1997-06-04 Methode de controle et diagnostic du fonctionnement d'un appareillage electrique a haute tension

Publications (2)

Publication Number Publication Date
EP0883145A1 EP0883145A1 (fr) 1998-12-09
EP0883145B1 true EP0883145B1 (fr) 2004-03-17

Family

ID=9507576

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98401154A Expired - Lifetime EP0883145B1 (fr) 1997-06-04 1998-05-14 Méthode de contrôle et diagnostic du fonctionnement d'un appareillage électrique à haute tension

Country Status (9)

Country Link
US (1) US6023404A (id)
EP (1) EP0883145B1 (id)
CN (1) CN1159596C (id)
AT (1) ATE262215T1 (id)
CA (1) CA2238903A1 (id)
DE (1) DE69822365T2 (id)
ES (1) ES2216254T3 (id)
FR (1) FR2764431B1 (id)
ID (1) ID20418A (id)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6286377B1 (en) * 1999-03-12 2001-09-11 Eaton Corporation Method and apparatus for testing spring powered switches
ATE389887T1 (de) * 2000-12-15 2008-04-15 Abb Technology Ag Zustandsdiagnose eines stufenschalters
US7145760B2 (en) * 2000-12-15 2006-12-05 Abb Technology Ltd. Tap changer monitoring
CN100580474C (zh) * 2004-05-13 2010-01-13 三菱电机株式会社 状态把握装置以及使用了该状态把握装置的电力开关设备的开关控制装置
DE102004053612A1 (de) * 2004-11-02 2006-05-04 Siemens Ag Überwachungsverfahren für eine durch relativ zueinander bewegbare Kontaktstücke begrenzte Trennstrecke eines elektrischen Schaltgerätes sowie zugehörige Vorrichtung zur Ausführung des Überwachungsverfahrens
CN101802733B (zh) * 2006-12-12 2013-08-28 新东工业株式会社 用于诊断一种生产设备的工作状态的方法及系统
KR101456317B1 (ko) * 2010-07-01 2014-11-04 현대중공업 주식회사 가스절연개폐장치용 복합 소호형 가스차단기
US9362071B2 (en) 2011-03-02 2016-06-07 Franklin Fueling Systems, Inc. Gas density monitoring system
WO2013126397A1 (en) 2012-02-20 2013-08-29 Franklin Fueling Systems, Inc. Moisture monitoring system
CN102721919B (zh) * 2012-06-25 2014-11-26 南京南自西电电气有限责任公司 高压真空断路器在线监测方法
ES2534183T3 (es) * 2012-10-29 2015-04-20 Omicron Electronics Gmbh Procedimiento para el diagnóstico de un interruptor de autosoplado y dispositivo de diagnóstico
WO2016049825A1 (en) 2014-09-29 2016-04-07 Abb Technology Ltd Method and device for monitoring circuit breaker
CN105044595B (zh) * 2015-06-29 2017-12-22 平高集团有限公司 开关灭弧试验装置及试验方法
DE102015217403A1 (de) * 2015-09-11 2017-03-16 Siemens Aktiengesellschaft Schaltgerät mit einer Vakuumröhre
CO2018006379A1 (es) * 2018-06-20 2018-07-10 Celsa S A S Dispositivo para la interrupción y reconexión automática de circuitos de media tensión instalable en bases intercambiables
CN110501260A (zh) * 2019-09-04 2019-11-26 上海乐研电气有限公司 一种具有在线自校验功能的气体密度继电器及其校验方法
EP4125106A1 (en) * 2021-07-27 2023-02-01 Abb Schweiz Ag Monitoring system for a low voltage, medium voltage, or high voltage circuit breaker
EP4362054A1 (en) * 2022-10-25 2024-05-01 Hitachi Energy Ltd Method for determining a control signal of an electromagnetic drive of an interrupter unit, and interrupter unit for a gas-insulated high or medium voltage device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0721981B2 (ja) * 1987-04-13 1995-03-08 株式会社日立製作所 開閉器の動作監視装置
WO1993023760A1 (en) * 1992-05-12 1993-11-25 Square D Company System for monitoring circuit breaker operations and alerting need of preventative maintenance
US5629869A (en) * 1994-04-11 1997-05-13 Abb Power T&D Company Intelligent circuit breaker providing synchronous switching and condition monitoring
EP0830699B2 (en) * 1995-05-15 2005-09-07 Cooper Industries, Inc. Control method and device for a switchgear actuator

Also Published As

Publication number Publication date
ATE262215T1 (de) 2004-04-15
EP0883145A1 (fr) 1998-12-09
CN1201150A (zh) 1998-12-09
CN1159596C (zh) 2004-07-28
FR2764431A1 (fr) 1998-12-11
FR2764431B1 (fr) 1999-07-09
ID20418A (id) 1998-12-10
ES2216254T3 (es) 2004-10-16
US6023404A (en) 2000-02-08
DE69822365T2 (de) 2005-02-17
CA2238903A1 (fr) 1998-12-04
DE69822365D1 (de) 2004-04-22

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