CN1766667B - Method for measuring switch time of multi-contact switch and switch time measuring circuit - Google Patents

Method for measuring switch time of multi-contact switch and switch time measuring circuit Download PDF

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Publication number
CN1766667B
CN1766667B CN 200510104084 CN200510104084A CN1766667B CN 1766667 B CN1766667 B CN 1766667B CN 200510104084 CN200510104084 CN 200510104084 CN 200510104084 A CN200510104084 A CN 200510104084A CN 1766667 B CN1766667 B CN 1766667B
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China
Prior art keywords
switch
switching
tts
mts
voltage
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Expired - Fee Related
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CN 200510104084
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Chinese (zh)
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CN1766667A (en
Inventor
沃尔弗冈·阿尔布雷克特
阿尔弗莱德·比灵格尔
康拉德·罗伊德尔
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Maschinenfabrik Reinhausen GmbH
Scheubeck GmbH and Co
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Maschinenfabrik Reinhausen GmbH
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0038—Tap change devices making use of vacuum switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H2009/0061—Monitoring tap change switching devices

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  • Measurement Of Unknown Time Intervals (AREA)
  • Housings And Mounting Of Transformers (AREA)

Abstract

The invention relates to a method for measuring switch time of multi-contact switch, wherein, a test circuit is disposed on an electric switch element within the multi-contact switch and has independent power source. An on-load step switch performs switching for one time and collecting the changing process of voltage of a measuring resistance in the test circuit. Thereby, the correspondence of point-in-time in the case of generating jumping upon the changing process of voltage with that of switch which is provided in each switch element within the multi-contact switch is achieved.

Description

On the sensing lead multipoint switch method of switching time and switching time metering circuit
Technical field
The present invention relates to the method that the chronological order of each time switching of a kind of different contact elements that carry out in succession during to the service load multipoint switch and on-off element is measured.The invention still further relates to the circuit that is applicable to the method.
Background technology
The load multipoint switch is used for switching incessantly between the different taps of the multistage transformer that is added with load, thereby is used for voltage-regulation; The load multipoint switch discloses a large amount of embodiments, and usually based on the-resistance high-speed switch principle that proposes by doctor Jansen in Europe-nineteen twenty-six at least.Except the mechanical switch contact of classics, much more more and more transwitch and vacuum switch photoelectric tube also are used as suitable on-off element.
WO 99/60588 discloses a kind of such load multipoint switch, and it is designed to the load selector type.Fixing classification contact is wherein arranged on the wall of an insulating material cylinder, and they can be connected on the rotatable switch shaft by a contact carrier.Contact carrier has two mechanical contacts mutually to each electric power that is switched, and they can contact with the classification contact of fixing respectively.One of them mechanical contact directly is connected with the first vacuum switch photoelectric tube, and another mechanical contact is electrically connected by a middle switching resistance and second a vacuum switch photoelectric tube that inserts.The opposite side of these two vacuum switch photoelectric tubes is electrically connected with face terminals respectively.The foregoing circuit of this known load selector switch is shown among Fig. 1.N among the figure, n+1, n+2 are different tappings, and MTS and TTS are two mechanical contacts, and MSV and TTV are two vacuum switch photoelectric tubes, and R is the switching resistance in the branch road, and STC is a face terminals.
When each the switching-during at the service load multipoint switch-not only mechanical contact but also vacuum switch photoelectric tube all carry out in succession different switch motions by a switching sequence regulation, that have feature.A plurality of switch motions in the switching sequence of above-mentioned known load selector switch in chronological sequence are shown among Fig. 2.As seen from Figure 2, when each the switching different characteristic time points is arranged, MSV or TTV on these time points in mechanical contact MTS or TTS or two the vacuum switch photoelectric tubes are operated respectively.These characteristic times point t shown in Figure 3 0To t 7
Fig. 4 is shown specifically each time point once more; Wherein " c " (close) represents the respective element connection, and " o " (open) represents that respective element disconnects.Each characteristic time point is described below respectively:
t 0Initial state; Switch beginning
t 1Vacuum switch photoelectric tube TTV disconnects
t 2Mechanical contact TTS connects
t 3Vacuum switch photoelectric tube TTV connects once more; Loop current Ic flows through it
t 4Vacuum switch photoelectric tube MSV disconnects
t 5Mechanical contact MTS disconnects
t 6Mechanical contact MTS connects once more
t 7Vacuum switch photoelectric tube MSV connects; Finishing switching.
With I LThe arrow of expression illustrates load current and flows through in which bar branch road.For clarity sake omitted the Reference numeral of on-off element in Fig. 4, these Reference numerals are corresponding to shown in Fig. 1.
For the nothing of proof load multipoint switch is delayed work, certain require when each the switching to put above-mentioned switching time t 1T 7Between whole transfer period, have identical, for the specific time location of switch.
In manufacturing plant, may before dispatching from the factory, the load multipoint switch check accordingly with suitable verifying attachment and measuring equipment.Also to test to the scene in the transformer for the installation load multipoint switch in addition.If member is replaced in check or maintenance, when especially contact, storage power spring or other motion-affecting element are replaced, be necessary whether the feature switching sequence of checking this device type regulation after assembling still is observed.Yet there is not the suitable method of inspection at present.
Summary of the invention
Therefore the object of the present invention is to provide a kind of method, it makes the maintenance personal carry out switching time reliably by simple tool at the scene and measures, and whether switching sequence and determining apparatus when promptly collecting the load multipoint switch and being operated have function completely.The present invention also aims to provide a circuit, this circuit can be realized said method by plain mode.
Above-mentioned task is finished by the Method and circuits with following characteristics.
Measure the method for the switching time on the load multipoint switch, this load multipoint switch has at least two motion switch elements that are used for connecting with selection mode different fixing multistage contacts, and wherein at least one motion switch element directly is connected with face terminals by an electric switch, at least one other motion switch element is by being connected with face terminals with the series circuit that another electric switch is formed by a switching resistance, wherein at first non-volatilely the storage switch sequence for the specific sequential of switch, described on off sequence is the disconnection in succession or the connection of motion switch element and electric switch in once switching, then the metering circuit that constitutes of series circuit of being made up of voltage source and measuring resistance is connected to electric switch and faces toward between the side of motion switch element respectively, then carry out the once switching of load multipoint switch, and finish simultaneously voltage U on the measuring resistance MThe measurement of=f (t) change procedure, then the measuring voltage U that obtains MThe time point that occurs saltus step in the change procedure of=f (t) is collected, corresponding for the specific sequential of switch of last deadline point and the on off sequence of being stored in advance.
Be used to measure the metering circuit of a switching time on the load multipoint switch, this load multipoint switch has two motion switch elements that are used for connecting with selection mode different fixing multistage contacts at least, and wherein at least one motion switch element directly is connected with face terminals by an electric switch, at least one other motion switch element is by being connected with face terminals with the series circuit that another electric switch is formed by a switching resistance, wherein the series circuit of being made up of a voltage source and measuring resistance is connected electric switch respectively facing between the side of motion switch element, and is provided with the device that is used to measure the voltage on the measuring resistance.
The present invention makes the people can be by simple mode directly at the scene first, i.e. load multipoint switch place in being installed to corresponding multistage transformer, after the maintenance, changing make and break contact or other member after the measuring switch time, and judge that the switching sequence that records is whether in specific for switch and the scope desired nominal value of predetermined function.
Description of drawings
Describe the present invention for example in detail by accompanying drawing below.In the accompanying drawing:
Fig. 1 illustrates the circuit of a known load multipoint switch;
Fig. 2 illustrates the switching sequence of this known load multipoint switch;
Characteristic time point when Fig. 3 illustrates this known load multipoint switch switching;
Fig. 4 is shown specifically characteristic time point shown in Figure 3 once more.
Fig. 1 to 4 has described prior art, and illustrates in front.
Fig. 5 is the sketch of the inventive method;
Fig. 6 be illustrated in one begin as this instructions as described on the load multipoint switch of type in a circuit according to the invention;
Fig. 7 is shown specifically this circuit;
Fig. 8 illustrates the measurement result of the method according to this invention that is realized.
Embodiment
Fig. 5 schematically illustrates below with the method overall process that describes in detail.
At first be stored in each on-off element MTS when n switches to n+1, TTS and switch one are vacuum switch photoelectric tube MSV here, each time switching that TTV-carries out in succession for the specific order of switch.The openly load multipoint switch that begins to locate to illustrate at this instructions has following sequential:
-O-TTV (TTV disconnection);
-C-TTS (TTS connection);
-C-TTV (TTV connection);
-O-MSV (MSV disconnection);
-O-MTS (MTS disconnection);
-C-MTS (MTS connection);
-C-MSV (MSV connection).
When switching is the service load multipoint switch, shown in the feature that 7 second phases go on capable has just in time taken place in the sequential has switched.The connotation of top symbol illustrated in front.
Be according to metering circuit of the present invention below, it is by voltage source U and measuring resistance R MThe series circuit of forming constitutes, and is set at switch-be vacuum switch photoelectric tube MSV here, and TTV is respectively facing to the on-off element MTS of motion, between the side of TTS.Above-mentioned setting so realizes by not shown electric connection line, feasible not only voltage source U but also measuring resistance R MCan be approaching from load multipoint switch outside.The switch enclosure of load multipoint switch is opened in actual conditions for this reason, and connecting line correspondingly is stuck, and then switch enclosure refills, and makes the load multipoint switch recover its function again.
Realize the once switching of load multipoint switch from n to n+1 below, finish measuring resistance R simultaneously MLast voltage U MMeasurement, and the change procedure U of voltage with t switching time is shown M=f (t) is until arriving new load multipoint switch terminal location.What have advantage especially is that this can realize with oscillogram.
Then obtain each time point t 1To t 7, the measuring voltage U that is obtaining MSteep saltus step appears on these time points on=f (t) change curve.
These time points t that collects 1To t 7Order comparing of storage then and in advance for the specific sequence of operation of switch.
Finish each time point t at last 1To t 7Corresponding with the time sequencing of respective switch action:
-t 1＝O-TTV；
-t 2＝C-TTS；
-t 3＝C-TTV；
-t 4＝O-MSV；
-t 5＝O-MTS；
-t 6＝C-MTS；
-t 7＝C-MSV。
Determined to participate in each of the element that switches and they relative status in whole switching time t by simple mode like this switching time.Can judge that now this on off sequence is whether in the nominal value range to the respective model regulation.
In the example shown, from n to n+1, i.e. switching to next senior tapping describes by means of the load multipoint switch in the present invention.When the present invention was switched in the other direction at the load multipoint switch, promptly the working method when n+1 oppositely switches to n also was presented.In the case, respective switch element MTS when method begins back storage and switches from n+1 to n, TTS and switch-be vacuum switch photoelectric tube MSV here, each time switching that TTV-carries out in succession for the specific order of switch.
The voltage of voltage source for example can be in 5 to 50 volts scope.
Fig. 6 and 7 illustrates again and explained in a circuit according to the invention when illustration method.As mentioned above, the main member of this circuit is positioned at load multipoint switch outside, and can be directly approaching when the switch motion of proof load multipoint switch.Be connected to for the connecting line with metering circuit on the respective side of vacuum switch photoelectric tube MSV or TTV, they can have corresponding tie point when producing, as connecting jack.The end of the corresponding connecting line of metering circuit for example can be inserted into by a plug and connect in the jack.
Fig. 8 illustrates measurement result with curve once more, promptly analyzes resulting time point t when implementing the inventive method 1To t 7As seen from the figure, by means of shown measuring voltage U MThe oscillogram of=f (t), each time point is obtained in the saltus step of available this measuring voltage, and with these time points corresponding to corresponding switch motion.
The method according to this invention is illustrated for a situation of determining the load multipoint switch of type fully of the prior art.Yet the present invention is not limited to the application on this type.Particularly for example also can replace vacuum switch photoelectric tube MSV, TTV with mechanical switch.On-off element and contact also can have other quantity and structure in addition.Method and circuits of the present invention all can be used for all load multipoint switches that type is the resistance high-speed switch.

Claims (4)

1. measure the method for a switching time on the load multipoint switch, this load multipoint switch has at least two and is used for connecting different fixing multistage contact (n with selection mode, n+1, n+2) motion switch element (MTS, TTS), and wherein at least one motion switch element (MST) directly is connected with face terminals (STC) by an electric switch (MSV), at least one other motion switch element (TTS) is by being connected with face terminals (STC) with the series circuit that another electric switch (TTV) is formed by a switching resistance (R), it is characterized in that, the storage switch sequence for the specific sequential of switch at first non-volatilely, described on off sequence is motion switch element (MTS in once switching, TTS) and electric switch (MSV, TTV) disconnection in succession or connection are followed one by voltage source (U) and measuring resistance (R M) metering circuit that constitutes of the series circuit formed is connected to electric switch (MSV, TTV) (MTS between side TTS), then carries out the once switching of load multipoint switch, and finishes simultaneously measuring resistance (R facing to the motion switch element respectively M) last voltage U MThe measurement of=f (t) change procedure, then the measuring voltage U that obtains MTime point (the t that occurs saltus step in the change procedure of=f (t) 1... t 7) be collected last deadline point (t 1... t 7) with corresponding for the specific sequential of switch of the on off sequence of being stored in advance.
2. the method for claim 1 is characterized in that, the voltage that voltage source (U) produces is DC voltage.
3. be used to measure the metering circuit of a switching time on the load multipoint switch, this load multipoint switch has two at least and is used for connecting different fixing multistage contact (n with selection mode, n+1, n+2) motion switch element (MTS, TTS), and wherein at least one motion switch element (MTS) directly is connected with face terminals (STC) by an electric switch (MSV), at least one other motion switch element (TTS) is by being connected with face terminals (STC) with the series circuit that another electric switch (TTV) is formed by a switching resistance (R), it is characterized in that, by a voltage source (U) and a measuring resistance (R M) series circuit formed is connected electric switch (MSV, TTV) (MTS between side TTS), and is provided with and is used to measure measuring resistance (R facing to the motion switch element respectively M) on the device of voltage.
4. metering circuit as claimed in claim 3 is characterized in that, the connection of metering circuit so realizes by means of connecting line, makes voltage source (U) and measuring resistance (R M) spatially be positioned at the outside of load multipoint switch.
CN 200510104084 2004-10-28 2005-09-15 Method for measuring switch time of multi-contact switch and switch time measuring circuit Expired - Fee Related CN1766667B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004052316.9 2004-10-28
DE200410052316 DE102004052316B3 (en) 2004-10-28 2004-10-28 Switching method for measuring switch times on an on-load step switch attaches a test circuit to electric switch elements inside a step switch with a separate source of voltage

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CN1766667A CN1766667A (en) 2006-05-03
CN1766667B true CN1766667B (en) 2010-04-14

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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006050624A1 (en) 2006-10-26 2008-04-30 Siemens Ag Reactance connecting device for transformer in electric arc furnace, has induction coil and standalone load switch for adjusting reactance of induction coil under load, where induction coil is provided with multiple tapping points
EP2244272B1 (en) 2009-04-20 2012-06-06 ABB Technology Ltd Measuring contact sequence in a tap changer
ES2630011T3 (en) * 2009-08-10 2017-08-17 Siemens Aktiengesellschaft Procedure to check the operation of a vacuum switch of a traction current converter
DE202009012198U1 (en) * 2009-09-08 2010-02-11 Maschinenfabrik Reinhausen Gmbh Test drive for tap-changer
ES2443155T3 (en) 2010-01-16 2014-02-18 Maschinenfabrik Reinhausen Gmbh Procedure for measuring the switching time in a tap changer under load and circuit for measuring the switching time
DE102012213159A1 (en) * 2012-07-26 2014-01-30 Robert Bosch Gmbh Battery system with battery contactors and a diagnostic device for monitoring the functional status of the contactors and the associated diagnostic procedure
CN103197237B (en) * 2013-03-08 2015-04-15 黑龙江省电力科学研究院 Valve action time testing system
CN103983870B (en) * 2014-05-12 2016-09-14 中国航空工业集团公司沈阳飞机设计研究所 A kind of test circuit
DE102020123455A1 (en) 2020-09-09 2022-03-10 Maschinenfabrik Reinhausen Gmbh LOAD CONTROLLER AND METHOD OF OPERATING A LOAD CONTROLLER

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Publication number Priority date Publication date Assignee Title
US5523674A (en) * 1992-07-16 1996-06-04 Maschinenfabrik Reinhausen Gmbh Step switch
EP0712140B1 (en) * 1994-11-08 1997-07-09 MASCHINENFABRIK REINHAUSEN GmbH Tap changer
US5786552A (en) * 1994-03-09 1998-07-28 Maschinenfabrik Reinhausen Gmbh Switching arrangement for load change-over switches of step switches and for selector switches
EP0805464B1 (en) * 1996-05-02 2002-02-13 MASCHINENFABRIK REINHAUSEN GmbH Tap changer
CN2515684Y (en) * 2001-12-27 2002-10-09 王农 Switch action state monitor
CN1489698A (en) * 2000-12-15 2004-04-14 Abb Tap changer condition diagnosing

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DE19821775C1 (en) * 1998-05-14 1999-10-14 Reinhausen Maschf Scheubeck Load selector for step transformer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5523674A (en) * 1992-07-16 1996-06-04 Maschinenfabrik Reinhausen Gmbh Step switch
US5786552A (en) * 1994-03-09 1998-07-28 Maschinenfabrik Reinhausen Gmbh Switching arrangement for load change-over switches of step switches and for selector switches
EP0712140B1 (en) * 1994-11-08 1997-07-09 MASCHINENFABRIK REINHAUSEN GmbH Tap changer
EP0805464B1 (en) * 1996-05-02 2002-02-13 MASCHINENFABRIK REINHAUSEN GmbH Tap changer
CN1489698A (en) * 2000-12-15 2004-04-14 Abb Tap changer condition diagnosing
CN2515684Y (en) * 2001-12-27 2002-10-09 王农 Switch action state monitor

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CN1766667A (en) 2006-05-03

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