CA2524204A1 - Device for the remote supervision of point mechanisms - Google Patents
Device for the remote supervision of point mechanisms Download PDFInfo
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- CA2524204A1 CA2524204A1 CA002524204A CA2524204A CA2524204A1 CA 2524204 A1 CA2524204 A1 CA 2524204A1 CA 002524204 A CA002524204 A CA 002524204A CA 2524204 A CA2524204 A CA 2524204A CA 2524204 A1 CA2524204 A1 CA 2524204A1
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- Prior art keywords
- switch
- electric
- switching contacts
- checking
- electric switching
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- 230000007246 mechanism Effects 0.000 title abstract 3
- 238000012544 monitoring process Methods 0.000 claims description 58
- 238000004804 winding Methods 0.000 claims description 14
- 230000007257 malfunction Effects 0.000 claims description 3
- 238000012806 monitoring device Methods 0.000 abstract description 9
- 239000004020 conductor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 241000403635 Arses Species 0.000 description 1
- 241000272470 Circus Species 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 206010010071 Coma Diseases 0.000 description 1
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- 241000282337 Nasua nasua Species 0.000 description 1
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- 208000003251 Pruritus Diseases 0.000 description 1
- XDXHAEQXIBQUEZ-UHFFFAOYSA-N Ropinirole hydrochloride Chemical compound Cl.CCCN(CCC)CCC1=CC=CC2=C1CC(=O)N2 XDXHAEQXIBQUEZ-UHFFFAOYSA-N 0.000 description 1
- 240000006909 Tilia x europaea Species 0.000 description 1
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- 239000004571 lime Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/10—Locking mechanisms for points; Means for indicating the setting of points
- B61L5/107—Locking mechanisms for points; Means for indicating the setting of points electrical control of points position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L7/00—Remote control of local operating means for points, signals, or track-mounted scotch-blocks
- B61L7/06—Remote control of local operating means for points, signals, or track-mounted scotch-blocks using electrical transmission
- B61L7/08—Circuitry
Landscapes
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Electric Motors In General (AREA)
- Keying Circuit Devices (AREA)
- Control Of Ac Motors In General (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Motor And Converter Starters (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Burglar Alarm Systems (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
The invention relates to a device for the remote supervision of point mechanisms operated by means of four lines e.g. by a three-phase current or by an alarm circuit which is operated by four lines and comprises contacts which are switched according to the position of the points and, once the respective end position has been reached, switch off an alarm circuit guided over the four lines for a points monitoring device that is e.g. fed by a constant voltage. A plurality of checking planes is provided in the longitudinal direction of the rails, and at least four switching contacts are interconnected in each checking plane and co-operate with mobile parts of the point mechanism or the point, e.g. a checking rod, in such a way that respectively two switching contacts are in a closed switching position and two switching contacts in an open switching position in an end position, and the switching position of each switching contact is changed once when it is moved into the other end position. According to the invention, the switching contacts of a plurality of checking planes are interconnected in such a way that, in the respective end positions, all closed switching contacts of the interconnected checking planes are mounted in series to form respectively one alarm circuit.
Description
Device for the Remote Monitoring of Railway Switch Drives The invention relates to a device for the remote monitoring of railway switch drives operated via four lines, for instance by three-phase current, or of a monitoring circuit operated via four lines and including electric contacts which are switched as a function of the position of the railway switch and via which, upon reaching of the respective end position of the switch tongue, a monitoring circuit is closed across said four lines, for a railway' switch monitor fed, for instance, by direct voltage, wherein a plurality of checking planes arranged in an offset manner in the longitudinal direction of the rails are provided and in each checking plane at least four electric SwitC hiiig COiitaCtS are ClrCuited tGget her and CGOperate wltii moved parts of the railway switch drive or railway switch, for instance a check rod. in a manner that in an end position of the switch tongue two electric switching contacts are each in the closed, and two electric switching contacts are each in the open, switching position and the switching position of each of the electric switching contacts is changed once at a changeover into the other end position of the switch tongue_ A device of the initially defined kind can, for instance, be taken from EP 0 052 759 A2. In that known device, it is departed from an electronic switch tower for feeding and remotely monitoring a railway switch drive that is operated by three-phase current via four lines. In the star point connections of the motor windings are arranged contacts controlled by the drive, via which the motor windings can be connected to the three-phase mains upon closure of the switching-on contacts and via which, upon rotation of the actuatG_r and reaching of the reSpeCtlve n2vT end pOS~tlOn, a mOnitOrlng ClrClllt ~S CIOSed aCrCSS the ~ Our I i neS a C1 three vli ndi n gS O f the urn v a ~ O r a railway SwltCh COntr01 ClrCu i t ~ ed, dS .. rill e, wi th di reCt voltage. The motor windings during rotation in correct operation are fed symmetrically and fed asymmetrically at least during run-down. The monitoring device responds to the monitoring currents via respectively associated diodes and via connection contacts of a running-direction selector, whereby the setting current is switched off and the monitoring voltage is switched on with the railway switch having assumed one of the two end positions. Upon rotation of the drive and reaching of the respective new end position, the monitoring circuit conducted across two' of the four end position contacts, the three motor windings and the four three-phase current lines will close in a manner that a thus formed power circuit will signal the correct functioning of the electric end position switches. Further devices of the initially defined kind are, for instance, known from DE 36 38 681 Al, in which the remote monitoring of three-phase railway switch drives is performed by the aid of two current-direction sensitive indicators connected in parallel via connection contacts of a running-direction selector_ A
monitoring direct voltage source will feed a control potential to the two indicators via the three-phase line, the motor windings of the drive and the end position contacts, if the drive assumes one of its end positions_ F_rom.DE 198 19 162 A1, another device of this type for a railway switch comprising several switch drives can be taken. The er_d positions of the switch drives are monitored in that the respective end position messages of the individual further switch drives are combined to a summation message. The circuitry in this case is to safeguard that the monitoring circuit will be realized only if a11_ or the respective, commonly monitored drives assume i denti cal- end pos i ti ons . In the ever_t o f cut-of f SwltC~? dr i veS, the nOrma 1 OSi ti OnS O f a1_1_ ~ ' --~ ' p e_ she con__ect ~ ng rclayS arc _i_On i tOrcd.
' CA 02524204 2005-10-31 In the initially mentioned device k_n_own from EP 0 052 759 A2, a number of additional monitorings were effected and centrally detected. Common to all known devices is that in the event the configuration is to be used for a plurality of checking planes without any basic changes in the lines involved, the signals combined to a summation message will in certain special cases not be suitable to monitor all of the electric switches, and maladjustments of an electric switch may, therefore, lead to that a monitoring circuit will still build up and the respective error message will not occur, or cannot be evaluated.
Departing from the initially described device for feeding and remotely monitoring railway switch drives operated by three-prlase Gi.irreiit via fGur lliieS, t he preSeiit liiveiitlOn alms t0 ensure the safe monitoring of several checking planes of one and the same railway switch without any increase in lines involved and without any adaptation work worth mentioning, and to enable the safe check of all electric switches of a plurality of checking planes of the same or several railway switches by a single monitoring unit_ To solve this object, the device according to the invention consists essentially in that the electric switching contacts of several checking planes are connected with one another in a manner that in the respective end positions of the switch tongue all of the closed electric switching contacts of the checking planes connected with one another a_re connected in series to form a respective monitoring circuit. While in the known configurations oizly part of the electric switches were each always connected in series and other electric switches were connected in parallel, in the configuration of the invention, by which the electric switching contacts of several checking planes are connected with one another i_n_ a manner that al 1 of the c1 osed e1 ectri c swi tchi ng CCntGCLS, l _e. al l_ p. t_h_e CGn~cCtiGI?S- -- that are CO='?duCtlve t0 fOrTti the c~lOCking Ci_rCUi_t, a_re CO_n_ncCted . n cCri eS~ a--- --suiTLitati On signal will actually be formed, and the monitoring circuit will actually close, only if all of the switches of several checking planes are actually working and the changeover of the railway switch was correct.
Yet, in order to ensure correct working and the necessary check, not only the electric switch position as such, but also the respective time required by the three-phase motor for the switching procedure are essential criteria to be evaluated for the correct working of the railway switch and its safety. The configuration in this respect, as known per se, is devised such that motor windings of a three-phase motor are' connected in series with the electric switching contacts and connectable to the three-phase mains via the same, wherein the configuration ire a particularly advantageous manner is devised such that the mOnitOring CirCpit COrreSpOnding fi0 One pf the end pOSi_ti_OnS and the monitoring circuit corresponding to the other of the end positions are connected with each other in a manner that the monitoring circuits will be connected to a star point connection at the occurrence of a malfunction of at least one of the electric switching contacts or a faulty setting of the railway switch in at least one checking plane. If a failure of an e1 -ect ri C gyii tChi ng COntaCt OCCLIrS, a ne~~T Star pOi nt CO_n_neCt i On can be formed with this switching arrangement, whereby the correct function, or a malfunction, can be directly concluded from the parameters: period of changeover and current consumption of the three-phase d_rive_ An absolute potential separation between logics and power range is to be ensured both in the signaling and in the setting modes o- operation. As already mentl0ned in the beginning, the voltage in the monitorir_g circuit, as a _rule, is a d?_rect voltage, 4.~~leT eaS the pOW~e- =ange, aS a rll ~ e, i S T~Q jay a three-phase source. D~,~_r i ng a setti ng prOCedtire, it i s to be taken care that ' CA 02524204 2005-10-31 .. 5 the drive will be switched off upon reaching of the end position, in order to ensure the respective potential separation required for the subsequent check. If the end position is not reached, the drive will have to be switched off after a maximally admissible running time, thus enabling an error to be immediately recognized or evaluated by verification of the summation signals_ The switching arrangement according to the invention, which connects a plurality of checking planes with one another, can be realized with conventional electric switches or electric switching contacts or controlled electric contacts such that the only expenditure involved is limited to connecting the electric COntaCtS 1n th a COrreCt manner 1n Order t0 .enable tile deSlred series connection in any position. In this context, the configuration advantageously is devised such that two electric switching contacts each of a checking plane, which have different switching positions, are combined in a switch component and cooperate with a common actuating member_ In principle, electric switching contacts of a checking plane need not necessarily be redundant. However, in order to ensure the redundancy necessary for the series connection according to the invention also in those cases; the total number of electric switching contacts must comply with the criteria of redundancy.
To this end, the configuration is devised such that the number of electric switching contacts of all checking planes corresponds to an integral muitipie of eight. With such a number of electric switching contacts and the respective crosswise connection or self-monitoring mode of construction in a first checking plane, it is feasible to safely avoid shunts or parallel connections in all switching positions such that the required Seri eS COnn2Cti On by w~'?1Ct'1 a S~.~~1'Tlat' On Slgnal Ca'_.1 be CO rreCtl y de termi ned ~ O- all O f tile a l eCtrlC S'svi tChlng COntaCtS
to be mOnltOred G'%111 aCtuall~r always be guaranteed.
' CA 02524204 2005-10-31 In the preferred embodiment, the device according to the invention is further developed in a manner that at least two electric switching contacts are connected in series having the same switching position at the same end position of the switch tongue, wherein, in a further preferred manner, two electric switching contacts having different switching positions, of an electric switch component are linked with each other for the same end position of the switch tongue. This safeguards enhanced failure disclosure.
Finally, the configuration may also be devised such that three electric switching contacts,-of which at least two comprise difierer~t switchirLg positions, are combined in an electric switch component to cooperate with a common actuating member_ In this case; three instead of two electric switching contacts are, thus, each integrated in a component and commonly actuated, wherein two such electric switch components can be arranged in the checking plane such that a total of six electric switching contacts are provided.
In order to increase the operating safety, further marginal condition are to be observed, wherein above all the wiring of the first checking plane for the complete series connection requires special attention irrespective of the respective position. In this context, the configuration may either be dev,_'sed such that a separate, self-monitoring checking unit is arranged in a first one of sai d checking planes connected with one another, or be devised such that the electric switch components allocated to a first one of said checking planes connected with one another are crosswisel_y c,'__rcuited. In both cases, it ,s ensured in the first checking plane that no i~t=?~eS i red Si'?ll~ tS wi ~ 1 OCCllr al-?d, as a YeSLtI t, ~.he Ser 1e S
ConneCtlo_n_ Will actually always be EnSUred fo_r al_l ClpSed ' CA 02524204 2005-10-31 .. 7 electric switching contacts of a plurality of checking planes each.
In the following, the invention will be explained in more detail by way of exemplary embodiments of different switching states schematically illustrated in the drawing_ Therein, Figs. 1 to 8 depict a monitoring device according to the prior art, Fig. 9 illustrates the schematic structure of the monitoring device according to the invention, and Figs. 10 to 16 are circuit diagrams of the monitoring device according to the invention in different states of the railway switch.
Fig_ 1 schematically illustrates a railway switch drive l, which is fed via four feed lines 2, 3, 4 and 5 and capable of beir~g controlled and monitored from a switch tower. The drive 1 COmpri geC a three-pha.Sg rnOtOr i__n_Cl_udi__n_g WlndlngS U; V arid w, which are connected in a known manner with the electric switching contacts 6, 7, 8 and 9. A rotary current mains including three phases L1, L2, L3 as well as the common center point conductor serves as power supply means for a changeover of the drive. Further arranged in or between two of the three external conductors L1, L2 and L3 is a railway switch running-direction selector not illustrated ,'_n detail; via which; for instance, the phase positions of the currents flowing on the outer conductors L1 and L2 for the right-handed and the left-handed rotation, respectively, of the drive are interchangeable_ In Fig. 1, the electric switching contacts 6, 7, 8 and 9 are switched in a manner that the -phases L1, L2 and L3 are interconnected to a star point 10 such that the three-phase motor can be operated at full power.
Figs. 2a and 2b exempt i f y tiao confi g~u_rati o_n_s of et ectri C swi tch COriL~Onej"? LS ~ ~ anQ 1 2 1n h'.'1l Ch ~ vYTO cl eCl.r1 i ; ~..og Yl ~ .
_ , __ c sw_~ch__. co__~ac~s are eaCrl COTTLb-ned. The el2Ctr~ C SW ~ tCh COmDOn2nt t ~ COTiI~i"lScS
electric switching contacts 6 and 7, the electric switch component 12 comprises electric switching contacts 8 and 9. The electric switching contacts 6, 7 and 8, 9 each arranged in one electric switch component 11 and 12, respectively, are allocated a common actuating member 13, which, for instance, 'cooperates with grooves 15 and 16 formed in a check rod 14. In Fig. 2, the actuating member 13 of the electric switch component 12 engages in the groove 15 and is therefore in the released state. The electric switch component 11, on the other hand, is in the tensioned position. The switch positions illustrated in Fig. 2 correspond with one of the two end positions of a railway switch tongue, or a movable frog. In the other end position of the switch tongue, the electric switch component 12 is in the tensioned position and the electric switch component 1i ds in the released position- During the resetting movement, both l +- ' ~ h r.,~mr~vynt ~ 1 ~ 1 2 a re t' en C l ~l'1 Pd > The two c l a f-. L r 1 c s vv 1 L. c t 1 a v m , ~ , electric .switching contacts 6, 7 and 8, 9 of the electric switch components 11 and 12, respectively, are in different switching positions-From this results in the right-hand end position the circuit diagram represented in Fig. 3. In this right-hand end position, the feed limes 2, 3, 4, 5 by the s;~>itch tc~f:er are irterconrected in a manner that a monitoring circuit can build up across the four feed lines 2, 3, 4, 5 and the three motor windings U, V, W.
The monitoring circuit is designed as a direct voltage circuit having a feed voltage of 60 Volts- If the correct right-hand end position of the switch tongue is assumed, the monitoring circuit will be closed and extend across feed line 2, motor winding V, electric switching contact 8, feed line 3, monitori_n_g relay Wy, f eed 1_i._-,2 4, fi~oto_r w,'_nd;r,a U, e1 ect_ric switching contact 7, motor In%i ndi ng ~r and feed 1i ne 5 .
In Fig. 4 it is anticipated that the switch computer of the switch tower has issued the switch command for switching the railway switch, whereby the monitoring circuit is opened, and the feed circuit for the drive motor is closed, by the switch tower. The winding V of the drive motor lies at the phase voltage, whereas the windings U and W lie at the phase-to-phase voltage between phases L2 and L3. The drive motor starts rotating, yet without the electric switching contacts 6, 7, 8, 9 being initially switched over. In this starting phase, the motor starts running at a torque of about 700_ Then the electric switching contacts 8, 9 are switched over in the starting phase, since the actuating member 13 of the electric switch component 12 is pressed out of the groove 15 of the check rod_ Hence results the circuitry illustrated in Fig. l, in which the motor windings are star-connected_ Fig_ 5 depicts the feed circu,'_ts of the drive in the run-down phase shortly before the drive motor is switched off. In this phase, the electric switching contacts 6, 7 too have changed their switching positions and thus separated the star point connection of the motor windings. The motor is now asymmetrically excited via the phase voltage and the phase-to-phase voltage; w_h_ereby the motor coati noes to ru_n_ at 70 ~ of the torque. Via the center point conductor Mp, the switch tower recognizes that the changeover has been completed. At the switch tower, the feed voltage for the three-phase motor is, therefore, cut off and the monitoring voltage for the left-hand end position ,'_s applied. T_h_ereby, a monitoring circuit as illustrated in Fig. 6 builds up across feed line 4, motor winding U, electric switching contact 6, feed line 3, monitoring relay WL, feed 1 ine 2, motor w,'_nd; ng V, ei_ect_ric sSaltcl_-li_ng ccntact 9, motor w,'_ndi ng v;~ a_n_d f eed 1 ,'-ne 5.
' CA 02524204 2005-10-31 IO
In the illustration according to Fig. 7 the situation in which the railway switch was run through, i_e. trailed against the position defined by the switch command executed last, is shown.
The two electric switching contacts 6 and 7 have changed their switching positions. Due to the contact _change, the hitherto existing monitoring circuit was interrupted with the monitoring relay Wu being released and the driving relay WA being picked up. The application of the feed voltage again causes the formation of a star connection of phases Ll, L2, L3 such that the three-phase current can again be applied for a new changeover.
Fig. 8 illustrates a circuitry as provided according to the prior art in a monitoring device that takes into account several checking planes arranged in an offset manner in the longitudinal direCtiO~ Of the railc_ FaCh Of the checking planes 17; 18 and 19 comprises a checking circuit including two electric switch components each having two electric switching contacts interconnected in a cascade-like manner. In the illustration according to Fig. 8, the monitoring voltage for the right-hand rail end position has been applied, and it is apparent that the faulty behavior of individual contact switches is not recognized. With the correct functioning of all electric switching contacts, whereby the electr,'_c switching contact 20 would be open and the electric switching contact 21 would be closed, the monitoring circuit should extend across the electric switching contact 21 as indicated by broken lines. At a malfunctioning of the electric switching contacts 20 and 21, which are combined to an electric switch component according to the electr,'_c switch component 11 and 12, respect,'_vely, (as 1_l_~astrated i n F i g. 8 ) , t_h_e e1 ectri c swi aching con tact 20 is, hOWever, Cl OSed and the el_eCtri C Swi tCh ~ ng COntaCt 22 iS Open, SO that t~''_c mOn ~ tOryg ClrClllt tn~i 1 1 ncverth°1 eSS be C1 OSed vi ca the electric sw,_'tching contact 20. Such malfunctioning _will not be recognized by the switch tower, because the individual electric switching contacts are connected in parallel, so that no summation signal that would indicate the malfunctioning even of a single electric switching contact will be available.
It is, therefore, proposed according to the invention that the electric switching contacts of several checking planes are connected with one another in a manner that all of the closed electric switching contacts of the interconnected checking planes will be connected in series in the respective end positions of the switch tongue. A schematic illustration of a monitoring device according to the invention is depicted in Fig.
9. The individual checking planes are denoted by l7, 18 and 19, and electric switch components A, B, C and D are apparent, each of which comprises two electric switching contacts having i_ rr ' i 1.. ' ' .~ ' T.., +-1-,~ ~r,l l ~c.ni mrr Ty.'yrri~reC '~~'1P
C1111ere11t swl~i:lliW g pvSi~lvuS. 111 1.116 lVlWJVViy 7,,. .,, electric switching contacts of the individual electric switch components are denoted by Al/2, A3/4, Bl/2, B3/4, C1/2, C3/4 and Dl/2, D3/4, respectively, wherein two electric switching contacts may each be integrated in an electric switch component, for instance electric switching contacts A1/2 and A3/4 in electric switch component A. The electric switch components can ' 1 l +- +- ~ ' ~i 2~ nd 2b 'The ~lri~Te mnt r be COni igurcu as ii.LUS ~..rcm.cv 1i. i gS . a a . o is denoted by M and the switch tower is denoted by St. Fig. 10 depicts the circuitry of the individual electric switching contacts, wherein, based on a first drive end position monitoring 22, three additional checking planes 17, 18 and 19 are consecutively arranged and connected in series_ In the end position shown in Fig_ 10, the monitoring circuit is closed and optically emphasized. It is apparent that all of the electric Switching contacts closed in this end position of the switch tongue are connected in series faith the monitor~ng circuit each e~tendir~g aCrOSS the electric switching coma ds A1/2, B1/2, C3/4 and D3/C of the indi v, dual ch ticking p1 antis _ i n the other end position of the switch tongue, a monitoring circuit extending across the electric switching contacts C1/2, Dl/2, A3/4 and B3/4 of the individual checking planes would result, as indicated by broken lines. It is apparent that the monitoring circuit connects all of the respectively closed electric switching contacts in series such that the malfunctioning of a single switching contact arranged in the row will cause the interruption of the monitoring circuit in a manner that the malfunctioning of a single electric switching contact will be recognized any time. The monitoring circuits corresponding to the two end positions of the switch tongue (indicated in Fig. 10 by full lines and by broken lines, respectively) are connected via connections 23 in a manner that a star connection will result from a malfunctioning of any of the electric switching contacts such that the three-phase motor will continue to run ,__ . g L ~. g ,~ +r, -~a , +-y ue1-~a ~T~or ~.,; 1 1 ha rPCOCrn_i_zed Ql.lrlll the t:llall eV ver aiiu t.me i ui v by the switch tower on account of the exceeded changeover period. Fig. 11 depicts the situation in which the electric switch component comprising the electric switching contacts B1/2 and B3/4 in the checking plane 19 does not indicate the reaching of the desired end position, so that the monitoring circuit will be interrupted and a star-point connection with star point 10 W111 reSUlt Such that the three-phase ~:CtCr vT111 COntirsiiP t0 run at full power. Thus, the point of connection for the star point of the first checking plane with a conventional four-wire technique is shifted under inclusion of the individual checking planes and thereby enables the conductance of the monitoring current path through the individual star points of the checking planes_ In the lowermost connection plane 22, a self-monitoring mOni tOrlng unit Or c C?"OSSvei_Se COnneCtiOn Of two e1 eCtri C SWltCh components may be provided, as indicated in Fig. 10, for instance, for switch compo_n_ents B and D. Such a crosswise connection safeguards the constant monitorability of all of the consecutively arranged electric switching contacts in the respective end position upon application of the monitoring circuit. Alternatively, a separate electric switch component E
may be employed as illustrated in Fig. 16. The electric switch component E in this case may be designed in accordance with Fig.
2b_ An external feature such as, e.g., a trailing signaling means 32 may be integrated in this device for the remote monitoring of railway switches.
The monitoring device according to the invention can also be integrated into a separate four-wire monitoring circuit_ Ir~ Fig.
12, a contact ,circuitry is illustrated, which comprises a mvnitvrinr'r rel a« 23 acti nn ; n both d; recti o_n_s. If a single one r of the numerous electric switching contacts fails, the monitoring current fed at, for instance, 48 Volts will be unable to flow and the railway switch arrangement will have to be checked. As in contrast to the illustration according to Fig.
12, in which the monitoring circuit is closed and consequently no error message is indicated, the electric switch component A
during the switehover accordi ng to Fi g. 13 wi l l not be reset upon reachi ng of the desired end position of the rai 1 such that the monitoring relay will be short-circuited, which will appear as an error message in the switch tower_ Overall, it is advantageous if a number of electric switching contacts corresponding to an integral multiple of eight are circuited together in the monitoring device according to the i nver._tion, and it i s, there f ore, requi _red wi th but two e1 ectri c switch components arranged in one checking plane to combine a grOi~p Of fOLr e1 eCtri C STnTi_tCh CO:!?pOnentS each i_?'? a ~!a_n__n_e-r that a g-Oup O ~ tHTO e1 eCtri C swi tCh COmpO=len tS W1~ 1 each be e?~ranged i n the released position and two electric switch components will each be in the tensioned state, as is the case with the checking plane 19 in Figs_ 9 to 11. A checking plane may be arranged in the drive plane or within the extension of the tongue or of the movable frog_ Fig. 14 depicts another structural design of an electric switch component 25, 26, in which three electric switching contacts are each combined_ Electric switch component 25 comprises electric switching contacts 27, 28, 29. The electric switching contacts 27, 28, 29 and 24, 30, 31 respectively arranged in an electric switch component 25 and 26 are allocated a common actuating member 13 cooperating, for instance, with grooves 15 and 16 forWed lit a Check rod 14:
The electric switch component 26 engages in the groove 15 by its actuating member 13 and is in the released position with the electric switching contact 30 closed and the contacts 24 and 31 opened. The electric switch component 25 by contrast is in the tensioned state with the electric switching contacts 27 and 28 closed and the electric switching contacts 29 opened. The switch positions illustrated in Fig. 14 correspond to one of the two end positions of the switch tongue or movable frog.
The checking device according to the invention can be assembled by electric switch components as described in Fig. 14_ It is apparent that all of the electric switching contacts closed in the end position of the switch tongue are again connected in series and a monitoring circuit closes as illustrated in Fig.
15, extending across the electric switching contacts All/12 and C4/3 and C13/14, respectively, o~ the individual checking p1 arses .
monitoring direct voltage source will feed a control potential to the two indicators via the three-phase line, the motor windings of the drive and the end position contacts, if the drive assumes one of its end positions_ F_rom.DE 198 19 162 A1, another device of this type for a railway switch comprising several switch drives can be taken. The er_d positions of the switch drives are monitored in that the respective end position messages of the individual further switch drives are combined to a summation message. The circuitry in this case is to safeguard that the monitoring circuit will be realized only if a11_ or the respective, commonly monitored drives assume i denti cal- end pos i ti ons . In the ever_t o f cut-of f SwltC~? dr i veS, the nOrma 1 OSi ti OnS O f a1_1_ ~ ' --~ ' p e_ she con__ect ~ ng rclayS arc _i_On i tOrcd.
' CA 02524204 2005-10-31 In the initially mentioned device k_n_own from EP 0 052 759 A2, a number of additional monitorings were effected and centrally detected. Common to all known devices is that in the event the configuration is to be used for a plurality of checking planes without any basic changes in the lines involved, the signals combined to a summation message will in certain special cases not be suitable to monitor all of the electric switches, and maladjustments of an electric switch may, therefore, lead to that a monitoring circuit will still build up and the respective error message will not occur, or cannot be evaluated.
Departing from the initially described device for feeding and remotely monitoring railway switch drives operated by three-prlase Gi.irreiit via fGur lliieS, t he preSeiit liiveiitlOn alms t0 ensure the safe monitoring of several checking planes of one and the same railway switch without any increase in lines involved and without any adaptation work worth mentioning, and to enable the safe check of all electric switches of a plurality of checking planes of the same or several railway switches by a single monitoring unit_ To solve this object, the device according to the invention consists essentially in that the electric switching contacts of several checking planes are connected with one another in a manner that in the respective end positions of the switch tongue all of the closed electric switching contacts of the checking planes connected with one another a_re connected in series to form a respective monitoring circuit. While in the known configurations oizly part of the electric switches were each always connected in series and other electric switches were connected in parallel, in the configuration of the invention, by which the electric switching contacts of several checking planes are connected with one another i_n_ a manner that al 1 of the c1 osed e1 ectri c swi tchi ng CCntGCLS, l _e. al l_ p. t_h_e CGn~cCtiGI?S- -- that are CO='?duCtlve t0 fOrTti the c~lOCking Ci_rCUi_t, a_re CO_n_ncCted . n cCri eS~ a--- --suiTLitati On signal will actually be formed, and the monitoring circuit will actually close, only if all of the switches of several checking planes are actually working and the changeover of the railway switch was correct.
Yet, in order to ensure correct working and the necessary check, not only the electric switch position as such, but also the respective time required by the three-phase motor for the switching procedure are essential criteria to be evaluated for the correct working of the railway switch and its safety. The configuration in this respect, as known per se, is devised such that motor windings of a three-phase motor are' connected in series with the electric switching contacts and connectable to the three-phase mains via the same, wherein the configuration ire a particularly advantageous manner is devised such that the mOnitOring CirCpit COrreSpOnding fi0 One pf the end pOSi_ti_OnS and the monitoring circuit corresponding to the other of the end positions are connected with each other in a manner that the monitoring circuits will be connected to a star point connection at the occurrence of a malfunction of at least one of the electric switching contacts or a faulty setting of the railway switch in at least one checking plane. If a failure of an e1 -ect ri C gyii tChi ng COntaCt OCCLIrS, a ne~~T Star pOi nt CO_n_neCt i On can be formed with this switching arrangement, whereby the correct function, or a malfunction, can be directly concluded from the parameters: period of changeover and current consumption of the three-phase d_rive_ An absolute potential separation between logics and power range is to be ensured both in the signaling and in the setting modes o- operation. As already mentl0ned in the beginning, the voltage in the monitorir_g circuit, as a _rule, is a d?_rect voltage, 4.~~leT eaS the pOW~e- =ange, aS a rll ~ e, i S T~Q jay a three-phase source. D~,~_r i ng a setti ng prOCedtire, it i s to be taken care that ' CA 02524204 2005-10-31 .. 5 the drive will be switched off upon reaching of the end position, in order to ensure the respective potential separation required for the subsequent check. If the end position is not reached, the drive will have to be switched off after a maximally admissible running time, thus enabling an error to be immediately recognized or evaluated by verification of the summation signals_ The switching arrangement according to the invention, which connects a plurality of checking planes with one another, can be realized with conventional electric switches or electric switching contacts or controlled electric contacts such that the only expenditure involved is limited to connecting the electric COntaCtS 1n th a COrreCt manner 1n Order t0 .enable tile deSlred series connection in any position. In this context, the configuration advantageously is devised such that two electric switching contacts each of a checking plane, which have different switching positions, are combined in a switch component and cooperate with a common actuating member_ In principle, electric switching contacts of a checking plane need not necessarily be redundant. However, in order to ensure the redundancy necessary for the series connection according to the invention also in those cases; the total number of electric switching contacts must comply with the criteria of redundancy.
To this end, the configuration is devised such that the number of electric switching contacts of all checking planes corresponds to an integral muitipie of eight. With such a number of electric switching contacts and the respective crosswise connection or self-monitoring mode of construction in a first checking plane, it is feasible to safely avoid shunts or parallel connections in all switching positions such that the required Seri eS COnn2Cti On by w~'?1Ct'1 a S~.~~1'Tlat' On Slgnal Ca'_.1 be CO rreCtl y de termi ned ~ O- all O f tile a l eCtrlC S'svi tChlng COntaCtS
to be mOnltOred G'%111 aCtuall~r always be guaranteed.
' CA 02524204 2005-10-31 In the preferred embodiment, the device according to the invention is further developed in a manner that at least two electric switching contacts are connected in series having the same switching position at the same end position of the switch tongue, wherein, in a further preferred manner, two electric switching contacts having different switching positions, of an electric switch component are linked with each other for the same end position of the switch tongue. This safeguards enhanced failure disclosure.
Finally, the configuration may also be devised such that three electric switching contacts,-of which at least two comprise difierer~t switchirLg positions, are combined in an electric switch component to cooperate with a common actuating member_ In this case; three instead of two electric switching contacts are, thus, each integrated in a component and commonly actuated, wherein two such electric switch components can be arranged in the checking plane such that a total of six electric switching contacts are provided.
In order to increase the operating safety, further marginal condition are to be observed, wherein above all the wiring of the first checking plane for the complete series connection requires special attention irrespective of the respective position. In this context, the configuration may either be dev,_'sed such that a separate, self-monitoring checking unit is arranged in a first one of sai d checking planes connected with one another, or be devised such that the electric switch components allocated to a first one of said checking planes connected with one another are crosswisel_y c,'__rcuited. In both cases, it ,s ensured in the first checking plane that no i~t=?~eS i red Si'?ll~ tS wi ~ 1 OCCllr al-?d, as a YeSLtI t, ~.he Ser 1e S
ConneCtlo_n_ Will actually always be EnSUred fo_r al_l ClpSed ' CA 02524204 2005-10-31 .. 7 electric switching contacts of a plurality of checking planes each.
In the following, the invention will be explained in more detail by way of exemplary embodiments of different switching states schematically illustrated in the drawing_ Therein, Figs. 1 to 8 depict a monitoring device according to the prior art, Fig. 9 illustrates the schematic structure of the monitoring device according to the invention, and Figs. 10 to 16 are circuit diagrams of the monitoring device according to the invention in different states of the railway switch.
Fig_ 1 schematically illustrates a railway switch drive l, which is fed via four feed lines 2, 3, 4 and 5 and capable of beir~g controlled and monitored from a switch tower. The drive 1 COmpri geC a three-pha.Sg rnOtOr i__n_Cl_udi__n_g WlndlngS U; V arid w, which are connected in a known manner with the electric switching contacts 6, 7, 8 and 9. A rotary current mains including three phases L1, L2, L3 as well as the common center point conductor serves as power supply means for a changeover of the drive. Further arranged in or between two of the three external conductors L1, L2 and L3 is a railway switch running-direction selector not illustrated ,'_n detail; via which; for instance, the phase positions of the currents flowing on the outer conductors L1 and L2 for the right-handed and the left-handed rotation, respectively, of the drive are interchangeable_ In Fig. 1, the electric switching contacts 6, 7, 8 and 9 are switched in a manner that the -phases L1, L2 and L3 are interconnected to a star point 10 such that the three-phase motor can be operated at full power.
Figs. 2a and 2b exempt i f y tiao confi g~u_rati o_n_s of et ectri C swi tch COriL~Onej"? LS ~ ~ anQ 1 2 1n h'.'1l Ch ~ vYTO cl eCl.r1 i ; ~..og Yl ~ .
_ , __ c sw_~ch__. co__~ac~s are eaCrl COTTLb-ned. The el2Ctr~ C SW ~ tCh COmDOn2nt t ~ COTiI~i"lScS
electric switching contacts 6 and 7, the electric switch component 12 comprises electric switching contacts 8 and 9. The electric switching contacts 6, 7 and 8, 9 each arranged in one electric switch component 11 and 12, respectively, are allocated a common actuating member 13, which, for instance, 'cooperates with grooves 15 and 16 formed in a check rod 14. In Fig. 2, the actuating member 13 of the electric switch component 12 engages in the groove 15 and is therefore in the released state. The electric switch component 11, on the other hand, is in the tensioned position. The switch positions illustrated in Fig. 2 correspond with one of the two end positions of a railway switch tongue, or a movable frog. In the other end position of the switch tongue, the electric switch component 12 is in the tensioned position and the electric switch component 1i ds in the released position- During the resetting movement, both l +- ' ~ h r.,~mr~vynt ~ 1 ~ 1 2 a re t' en C l ~l'1 Pd > The two c l a f-. L r 1 c s vv 1 L. c t 1 a v m , ~ , electric .switching contacts 6, 7 and 8, 9 of the electric switch components 11 and 12, respectively, are in different switching positions-From this results in the right-hand end position the circuit diagram represented in Fig. 3. In this right-hand end position, the feed limes 2, 3, 4, 5 by the s;~>itch tc~f:er are irterconrected in a manner that a monitoring circuit can build up across the four feed lines 2, 3, 4, 5 and the three motor windings U, V, W.
The monitoring circuit is designed as a direct voltage circuit having a feed voltage of 60 Volts- If the correct right-hand end position of the switch tongue is assumed, the monitoring circuit will be closed and extend across feed line 2, motor winding V, electric switching contact 8, feed line 3, monitori_n_g relay Wy, f eed 1_i._-,2 4, fi~oto_r w,'_nd;r,a U, e1 ect_ric switching contact 7, motor In%i ndi ng ~r and feed 1i ne 5 .
In Fig. 4 it is anticipated that the switch computer of the switch tower has issued the switch command for switching the railway switch, whereby the monitoring circuit is opened, and the feed circuit for the drive motor is closed, by the switch tower. The winding V of the drive motor lies at the phase voltage, whereas the windings U and W lie at the phase-to-phase voltage between phases L2 and L3. The drive motor starts rotating, yet without the electric switching contacts 6, 7, 8, 9 being initially switched over. In this starting phase, the motor starts running at a torque of about 700_ Then the electric switching contacts 8, 9 are switched over in the starting phase, since the actuating member 13 of the electric switch component 12 is pressed out of the groove 15 of the check rod_ Hence results the circuitry illustrated in Fig. l, in which the motor windings are star-connected_ Fig_ 5 depicts the feed circu,'_ts of the drive in the run-down phase shortly before the drive motor is switched off. In this phase, the electric switching contacts 6, 7 too have changed their switching positions and thus separated the star point connection of the motor windings. The motor is now asymmetrically excited via the phase voltage and the phase-to-phase voltage; w_h_ereby the motor coati noes to ru_n_ at 70 ~ of the torque. Via the center point conductor Mp, the switch tower recognizes that the changeover has been completed. At the switch tower, the feed voltage for the three-phase motor is, therefore, cut off and the monitoring voltage for the left-hand end position ,'_s applied. T_h_ereby, a monitoring circuit as illustrated in Fig. 6 builds up across feed line 4, motor winding U, electric switching contact 6, feed line 3, monitoring relay WL, feed 1 ine 2, motor w,'_nd; ng V, ei_ect_ric sSaltcl_-li_ng ccntact 9, motor w,'_ndi ng v;~ a_n_d f eed 1 ,'-ne 5.
' CA 02524204 2005-10-31 IO
In the illustration according to Fig. 7 the situation in which the railway switch was run through, i_e. trailed against the position defined by the switch command executed last, is shown.
The two electric switching contacts 6 and 7 have changed their switching positions. Due to the contact _change, the hitherto existing monitoring circuit was interrupted with the monitoring relay Wu being released and the driving relay WA being picked up. The application of the feed voltage again causes the formation of a star connection of phases Ll, L2, L3 such that the three-phase current can again be applied for a new changeover.
Fig. 8 illustrates a circuitry as provided according to the prior art in a monitoring device that takes into account several checking planes arranged in an offset manner in the longitudinal direCtiO~ Of the railc_ FaCh Of the checking planes 17; 18 and 19 comprises a checking circuit including two electric switch components each having two electric switching contacts interconnected in a cascade-like manner. In the illustration according to Fig. 8, the monitoring voltage for the right-hand rail end position has been applied, and it is apparent that the faulty behavior of individual contact switches is not recognized. With the correct functioning of all electric switching contacts, whereby the electr,'_c switching contact 20 would be open and the electric switching contact 21 would be closed, the monitoring circuit should extend across the electric switching contact 21 as indicated by broken lines. At a malfunctioning of the electric switching contacts 20 and 21, which are combined to an electric switch component according to the electr,'_c switch component 11 and 12, respect,'_vely, (as 1_l_~astrated i n F i g. 8 ) , t_h_e e1 ectri c swi aching con tact 20 is, hOWever, Cl OSed and the el_eCtri C Swi tCh ~ ng COntaCt 22 iS Open, SO that t~''_c mOn ~ tOryg ClrClllt tn~i 1 1 ncverth°1 eSS be C1 OSed vi ca the electric sw,_'tching contact 20. Such malfunctioning _will not be recognized by the switch tower, because the individual electric switching contacts are connected in parallel, so that no summation signal that would indicate the malfunctioning even of a single electric switching contact will be available.
It is, therefore, proposed according to the invention that the electric switching contacts of several checking planes are connected with one another in a manner that all of the closed electric switching contacts of the interconnected checking planes will be connected in series in the respective end positions of the switch tongue. A schematic illustration of a monitoring device according to the invention is depicted in Fig.
9. The individual checking planes are denoted by l7, 18 and 19, and electric switch components A, B, C and D are apparent, each of which comprises two electric switching contacts having i_ rr ' i 1.. ' ' .~ ' T.., +-1-,~ ~r,l l ~c.ni mrr Ty.'yrri~reC '~~'1P
C1111ere11t swl~i:lliW g pvSi~lvuS. 111 1.116 lVlWJVViy 7,,. .,, electric switching contacts of the individual electric switch components are denoted by Al/2, A3/4, Bl/2, B3/4, C1/2, C3/4 and Dl/2, D3/4, respectively, wherein two electric switching contacts may each be integrated in an electric switch component, for instance electric switching contacts A1/2 and A3/4 in electric switch component A. The electric switch components can ' 1 l +- +- ~ ' ~i 2~ nd 2b 'The ~lri~Te mnt r be COni igurcu as ii.LUS ~..rcm.cv 1i. i gS . a a . o is denoted by M and the switch tower is denoted by St. Fig. 10 depicts the circuitry of the individual electric switching contacts, wherein, based on a first drive end position monitoring 22, three additional checking planes 17, 18 and 19 are consecutively arranged and connected in series_ In the end position shown in Fig_ 10, the monitoring circuit is closed and optically emphasized. It is apparent that all of the electric Switching contacts closed in this end position of the switch tongue are connected in series faith the monitor~ng circuit each e~tendir~g aCrOSS the electric switching coma ds A1/2, B1/2, C3/4 and D3/C of the indi v, dual ch ticking p1 antis _ i n the other end position of the switch tongue, a monitoring circuit extending across the electric switching contacts C1/2, Dl/2, A3/4 and B3/4 of the individual checking planes would result, as indicated by broken lines. It is apparent that the monitoring circuit connects all of the respectively closed electric switching contacts in series such that the malfunctioning of a single switching contact arranged in the row will cause the interruption of the monitoring circuit in a manner that the malfunctioning of a single electric switching contact will be recognized any time. The monitoring circuits corresponding to the two end positions of the switch tongue (indicated in Fig. 10 by full lines and by broken lines, respectively) are connected via connections 23 in a manner that a star connection will result from a malfunctioning of any of the electric switching contacts such that the three-phase motor will continue to run ,__ . g L ~. g ,~ +r, -~a , +-y ue1-~a ~T~or ~.,; 1 1 ha rPCOCrn_i_zed Ql.lrlll the t:llall eV ver aiiu t.me i ui v by the switch tower on account of the exceeded changeover period. Fig. 11 depicts the situation in which the electric switch component comprising the electric switching contacts B1/2 and B3/4 in the checking plane 19 does not indicate the reaching of the desired end position, so that the monitoring circuit will be interrupted and a star-point connection with star point 10 W111 reSUlt Such that the three-phase ~:CtCr vT111 COntirsiiP t0 run at full power. Thus, the point of connection for the star point of the first checking plane with a conventional four-wire technique is shifted under inclusion of the individual checking planes and thereby enables the conductance of the monitoring current path through the individual star points of the checking planes_ In the lowermost connection plane 22, a self-monitoring mOni tOrlng unit Or c C?"OSSvei_Se COnneCtiOn Of two e1 eCtri C SWltCh components may be provided, as indicated in Fig. 10, for instance, for switch compo_n_ents B and D. Such a crosswise connection safeguards the constant monitorability of all of the consecutively arranged electric switching contacts in the respective end position upon application of the monitoring circuit. Alternatively, a separate electric switch component E
may be employed as illustrated in Fig. 16. The electric switch component E in this case may be designed in accordance with Fig.
2b_ An external feature such as, e.g., a trailing signaling means 32 may be integrated in this device for the remote monitoring of railway switches.
The monitoring device according to the invention can also be integrated into a separate four-wire monitoring circuit_ Ir~ Fig.
12, a contact ,circuitry is illustrated, which comprises a mvnitvrinr'r rel a« 23 acti nn ; n both d; recti o_n_s. If a single one r of the numerous electric switching contacts fails, the monitoring current fed at, for instance, 48 Volts will be unable to flow and the railway switch arrangement will have to be checked. As in contrast to the illustration according to Fig.
12, in which the monitoring circuit is closed and consequently no error message is indicated, the electric switch component A
during the switehover accordi ng to Fi g. 13 wi l l not be reset upon reachi ng of the desired end position of the rai 1 such that the monitoring relay will be short-circuited, which will appear as an error message in the switch tower_ Overall, it is advantageous if a number of electric switching contacts corresponding to an integral multiple of eight are circuited together in the monitoring device according to the i nver._tion, and it i s, there f ore, requi _red wi th but two e1 ectri c switch components arranged in one checking plane to combine a grOi~p Of fOLr e1 eCtri C STnTi_tCh CO:!?pOnentS each i_?'? a ~!a_n__n_e-r that a g-Oup O ~ tHTO e1 eCtri C swi tCh COmpO=len tS W1~ 1 each be e?~ranged i n the released position and two electric switch components will each be in the tensioned state, as is the case with the checking plane 19 in Figs_ 9 to 11. A checking plane may be arranged in the drive plane or within the extension of the tongue or of the movable frog_ Fig. 14 depicts another structural design of an electric switch component 25, 26, in which three electric switching contacts are each combined_ Electric switch component 25 comprises electric switching contacts 27, 28, 29. The electric switching contacts 27, 28, 29 and 24, 30, 31 respectively arranged in an electric switch component 25 and 26 are allocated a common actuating member 13 cooperating, for instance, with grooves 15 and 16 forWed lit a Check rod 14:
The electric switch component 26 engages in the groove 15 by its actuating member 13 and is in the released position with the electric switching contact 30 closed and the contacts 24 and 31 opened. The electric switch component 25 by contrast is in the tensioned state with the electric switching contacts 27 and 28 closed and the electric switching contacts 29 opened. The switch positions illustrated in Fig. 14 correspond to one of the two end positions of the switch tongue or movable frog.
The checking device according to the invention can be assembled by electric switch components as described in Fig. 14_ It is apparent that all of the electric switching contacts closed in the end position of the switch tongue are again connected in series and a monitoring circuit closes as illustrated in Fig.
15, extending across the electric switching contacts All/12 and C4/3 and C13/14, respectively, o~ the individual checking p1 arses .
Claims (10)
1. A device for the remote monitoring of railway switch drives operated via four lines, for instance by three-phase current, or of a monitoring circuit operated via four lines and including electric contacts which are switched as a function of the position of the railway switch and via which, upon arrival in the respective end position of the switch tongue, a monitoring circuit is closed across said four lines for a railway switch monitor fed, for instance, by direct voltage, wherein a plurality of checking planes (17, 18, 19) arranged in an offset manner in the longitudinal direction of the rails are provided and in each checking plane at least four electric switching contacts (A1/2, A3/4, C1/2, C3/4) are circuited together and cooperate with moved parts of the railway switch drive or railway switch, for instance a check rod, in a manner that in an end position of the switch tongue two electric switching contacts (A1/2, C3/4 and C1/2, A3/4, respectively) are each in the closed, and two electric switching contacts (C1/2, A3/4 and A1/2, C3/4, respectively) are each in the open, switching position and the switching position of each of the electric switching contacts (A1/2, A3/4, C1/2, C3/4) is changed once at a changeover into the other end position of the switch tongue, characterized in that the electric switching contacts (A1/2, A3/4, C1/2, C3/4) of several checking planes (17, 18, 19) are connected with one another in a manner that in the respective end positions of the switch tongue all of the closed electric switching contacts (A1/2, C3/4 and C1/2, A3/4, respectively) of said checking planes (17, 18, 19) connected with one another are connected in series to form a respective monitoring circuit.
2. A device according to claim 1, characterized in that motor windings (U, V, W) of a three-phase motor are connected in series with the electric switching contacts (A1/2, A3/4, C1/2, C3/4) and connectable to the three-phase mains via the same.
3. A device according to claim 1 or 2, characterized in that the monitoring circuit corresponding to one of the end positions of the switch tongue and the monitoring circuit corresponding to the other of the end positions of the switch tongue are connected with each other in a manner that the monitoring circuits will be connected to a star point connection at the occurrence of a malfunction of at least one of the electric switching contacts or a faulty changeover of the railway switch in at least one checking plane.
4. A device according to claim 1, 2 or 3, characterized in that two electric switching contacts (A1/2, A3/4 or B1/2, B3/4 or C1/2, C3/4 or D1/2, D3/4, respectively) each of a checking plane (17, 18, 19), which have different switching positions, are combined in an electric switch component (A, B, C, D) and cooperate with a common actuating member.
5. A device according to any one of claims 1 to 4, characterized in that the number of electric switching contacts of all checking planes (17, 18, 19) corresponds to an integral multiple of eight.
6. A device according to any one of claims 1 to 5, characterized in that at least two electric switching contacts (A1/2, B1/2) are connected in series having the same switching position at the same end position of the switch tongue.
7. A device according to any one of claims 1 to 6, characterized in that two electric switching contacts (A1/2, A3/4) having different switching positions, of an electric switch component (A) are linked with each other for the same end position of the switch tongue.
8. A device according to any one of claims 1 to 3 and 7, characterized in that that three electric switching contacts (27, 28, 29), of which at least two comprise different switching positions, are combined in an electric switch component (25) to cooperate with a common actuating member (13).
9. A device according to any one of claims 1 to 8, characterized in that a separate, self-monitoring checking unit is arranged in a first one of said checking planes connected with one another.
10. A device according to any one of claims 1 to 8, characterized in that the electric switch components (B1/2, B3/4; D1/2, D3/4) allocated to a first one of said checking planes connected with one another are crosswisely circuited.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0032303U AT6379U3 (en) | 2003-05-09 | 2003-05-09 | DEVICE FOR REMOTELY MONITORING SOFT DRIVES |
| ATGM323/2003 | 2003-05-09 | ||
| PCT/AT2004/000163 WO2004098976A1 (en) | 2003-05-09 | 2004-05-10 | Device for the remote supervision of point mechanisms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2524204A1 true CA2524204A1 (en) | 2004-11-18 |
Family
ID=27625576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002524204A Abandoned CA2524204A1 (en) | 2003-05-09 | 2004-05-10 | Device for the remote supervision of point mechanisms |
Country Status (19)
| Country | Link |
|---|---|
| US (1) | US20070040071A1 (en) |
| EP (1) | EP1622803B1 (en) |
| CN (1) | CN1819941B (en) |
| AT (2) | AT6379U3 (en) |
| AU (1) | AU2004235825B2 (en) |
| BR (1) | BRPI0410182A (en) |
| CA (1) | CA2524204A1 (en) |
| DE (2) | DE20310680U1 (en) |
| DK (1) | DK1622803T3 (en) |
| ES (1) | ES2268655T3 (en) |
| HR (1) | HRP20060335T3 (en) |
| IT (1) | ITMI20030343U1 (en) |
| NO (1) | NO20055829D0 (en) |
| PL (1) | PL1622803T3 (en) |
| PT (1) | PT1622803E (en) |
| SI (1) | SI1622803T1 (en) |
| TW (1) | TWI285604B (en) |
| WO (1) | WO2004098976A1 (en) |
| ZA (1) | ZA200509025B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE331650T1 (en) * | 2004-05-07 | 2006-07-15 | Cit Alcatel | ELECTRONIC POINT CONTROL WITH MONITORING OF THE POINT POSITION |
| ATE397846T1 (en) * | 2004-06-10 | 2006-05-15 | Alcatel Lucent | METHOD FOR DETECTING TERMINAL CLOSURES FOR POINT DRIVES |
| AT502042B1 (en) * | 2005-05-18 | 2007-01-15 | Vae Gmbh | DEVICE FOR TESTING OF MOVABLE PARTS OF A RAILWAY |
| ATE524365T1 (en) * | 2008-05-29 | 2011-09-15 | Funkwerk Information Technologies Gmbh | CIRCUIT FOR MONITORING LIMIT SWITCHES OF A 4-WIRE THREE-PHASE DRIVE OF A SWITCH |
| AU2015415489B2 (en) * | 2015-11-24 | 2019-06-20 | Siemens Mobility Pty Ltd. | Point machine and switch with snap-action and method of operating said point machine |
| US10953897B2 (en) * | 2016-09-30 | 2021-03-23 | Hitachi Rail Sts Usa, Inc. | Electronic circuit controller for railway switch machine, railway switch machine and railway switching system including same |
| CN108263431B (en) * | 2016-12-30 | 2020-02-21 | 比亚迪股份有限公司 | Straddle type single-rail turnout |
| CN108263427A (en) * | 2016-12-30 | 2018-07-10 | 比亚迪股份有限公司 | Changing points control system and railway points system |
| DE102017213186A1 (en) * | 2017-07-31 | 2019-01-31 | Siemens Aktiengesellschaft | Method and arrangement for monitoring a drive system of a track-bound vehicle |
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| DE1075658B (en) | 1960-02-18 | Siemens &. Halske Aktiengesell schaft Berlin und München | Circuit for four-wire controlled and monitored three-phase current drives for coupled points, track barriers or the like | |
| CH382796A (en) | 1960-08-15 | 1964-10-15 | Stin | Arrangement for controlling several electrically coupled reversible electromotive drives via four wires for adjusting devices in railway systems |
| DE2445618C2 (en) | 1974-09-25 | 1986-02-27 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Circuit arrangement for placing at least two track elements together |
| DE2525904A1 (en) * | 1975-06-10 | 1976-12-23 | Siemens Ag | Monitored locking device for railway points - uses sliding bar for control arm locking and monitor switch operation |
| DE3330869C2 (en) * | 1983-08-26 | 1986-07-03 | Siemens AG, 1000 Berlin und 8000 München | Circuit for the detection of earth faults in the supply circuits of three-phase turnout drives |
| DE3540307A1 (en) * | 1985-11-13 | 1987-05-14 | Siemens Ag | Circuit for controlling a set of points with a plurality of compact devices |
| DE3638681A1 (en) * | 1986-11-13 | 1988-05-19 | Siemens Ag | Device for remote-monitoring rotary-current points drives |
| AT399401B (en) * | 1988-05-27 | 1995-05-26 | Voest Alpine Eisenbahnsysteme | DEVICE FOR DETECTING THE CONDITION OF RAILS OR CROSSINGS |
| DE4424818A1 (en) * | 1994-07-14 | 1996-01-18 | Basf Ag | Low-viscosity mixtures of amphiphilic nonionic graft copolymers and viscosity-reducing additives |
| AT403462B (en) * | 1995-05-03 | 1998-02-25 | Vae Ag | DEVICE FOR MOVING SWITCHES |
| AT407983B (en) * | 1996-03-12 | 2001-07-25 | Vae Ag | DEVICE FOR DETECTING THE POSITIONS OF SWIVELABLE PARTS OF A SWITCH |
| DE19819162B4 (en) * | 1997-07-17 | 2008-01-10 | Siemens Ag | Circuit for setting and monitoring turnouts with multiple drives |
| DE29713060U1 (en) | 1997-07-17 | 1997-09-25 | Siemens AG, 80333 München | Circuit for setting and monitoring turnouts with multiple drives |
| US6599973B1 (en) * | 2000-09-27 | 2003-07-29 | E. I. Du Pont De Nemours And Company | Aqueous graft copolymer pigment dispersants |
| US6484974B1 (en) * | 2001-09-10 | 2002-11-26 | Union Switch & Signal, Inc. | Controller for switch machine |
| US7147189B2 (en) * | 2005-02-11 | 2006-12-12 | General Electric Company | Non-powered trailed switch detector for railroad track switching equipment |
-
2003
- 2003-05-09 AT AT0032303U patent/AT6379U3/en not_active IP Right Cessation
- 2003-07-11 DE DE20310680U patent/DE20310680U1/en not_active Expired - Lifetime
- 2003-07-22 IT IT000343U patent/ITMI20030343U1/en unknown
-
2004
- 2004-05-10 DE DE502004000930T patent/DE502004000930D1/en not_active Expired - Lifetime
- 2004-05-10 PL PL04731849T patent/PL1622803T3/en unknown
- 2004-05-10 EP EP04731849A patent/EP1622803B1/en not_active Expired - Lifetime
- 2004-05-10 AU AU2004235825A patent/AU2004235825B2/en not_active Ceased
- 2004-05-10 ES ES04731849T patent/ES2268655T3/en not_active Expired - Lifetime
- 2004-05-10 SI SI200430082T patent/SI1622803T1/en unknown
- 2004-05-10 AT AT04731849T patent/ATE332262T1/en active
- 2004-05-10 PT PT04731849T patent/PT1622803E/en unknown
- 2004-05-10 CN CN2004800194849A patent/CN1819941B/en not_active Expired - Fee Related
- 2004-05-10 TW TW093113046A patent/TWI285604B/en not_active IP Right Cessation
- 2004-05-10 WO PCT/AT2004/000163 patent/WO2004098976A1/en active IP Right Grant
- 2004-05-10 US US10/555,550 patent/US20070040071A1/en not_active Abandoned
- 2004-05-10 CA CA002524204A patent/CA2524204A1/en not_active Abandoned
- 2004-05-10 BR BRPI0410182-0A patent/BRPI0410182A/en not_active IP Right Cessation
- 2004-05-10 DK DK04731849T patent/DK1622803T3/en active
-
2005
- 2005-11-08 ZA ZA200509025A patent/ZA200509025B/en unknown
- 2005-12-08 NO NO20055829A patent/NO20055829D0/en not_active Application Discontinuation
-
2006
- 2006-10-04 HR HR20060335T patent/HRP20060335T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN1819941B (en) | 2010-05-26 |
| TW200427602A (en) | 2004-12-16 |
| ZA200509025B (en) | 2007-03-28 |
| ATE332262T1 (en) | 2006-07-15 |
| NO20055829L (en) | 2005-12-08 |
| EP1622803A1 (en) | 2006-02-08 |
| EP1622803B1 (en) | 2006-07-05 |
| ES2268655T3 (en) | 2007-03-16 |
| PT1622803E (en) | 2006-11-30 |
| AU2004235825B2 (en) | 2010-04-22 |
| CN1819941A (en) | 2006-08-16 |
| AT6379U3 (en) | 2005-06-27 |
| NO20055829D0 (en) | 2005-12-08 |
| DE20310680U1 (en) | 2003-09-18 |
| US20070040071A1 (en) | 2007-02-22 |
| TWI285604B (en) | 2007-08-21 |
| DE502004000930D1 (en) | 2006-08-17 |
| AU2004235825A1 (en) | 2004-11-18 |
| AT6379U2 (en) | 2003-09-25 |
| ITMI20030343U1 (en) | 2004-11-10 |
| SI1622803T1 (en) | 2006-12-31 |
| BRPI0410182A (en) | 2006-05-16 |
| PL1622803T3 (en) | 2006-11-30 |
| ITMI20030343V0 (en) | 2003-07-22 |
| WO2004098976A1 (en) | 2004-11-18 |
| DK1622803T3 (en) | 2006-11-06 |
| HRP20060335T3 (en) | 2007-03-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |