JP4121766B2 - Railway vehicle pantograph protection method and apparatus - Google Patents

Railway vehicle pantograph protection method and apparatus Download PDF

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Publication number
JP4121766B2
JP4121766B2 JP2002119512A JP2002119512A JP4121766B2 JP 4121766 B2 JP4121766 B2 JP 4121766B2 JP 2002119512 A JP2002119512 A JP 2002119512A JP 2002119512 A JP2002119512 A JP 2002119512A JP 4121766 B2 JP4121766 B2 JP 4121766B2
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Japan
Prior art keywords
pantograph
motor
storage battery
electrified section
drive
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JP2002119512A
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JP2003319509A (en
Inventor
政浩 倉持
裕之 蛯原
金子　　靖
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Nippon Sharyo Ltd
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Nippon Sharyo Ltd
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Description

【０００１】
【発明の属する技術分野】
本発明は、電化区間ではパンタグラフを介して架線からの給電を受けて走行するとともに車体に搭載した蓄電池に充電し、非電化区間では前記蓄電池から給電を受けて走行する鉄道車両のパンタグラフ保護方法及び装置に関する。
【０００２】
【従来の技術】
例えば、電化された車両基地の構内で入場車両を移動させる場合、場所によっては架線のない箇所もあるため、非電化区間を走行できる構内車両移動機が不可欠である。非電化区間を走行できる車両として、内燃機関を搭載した構内車両移動機が一般的に用いられているが、諸々の事情により内燃機関を使用しない場合に、架線電源と自車に搭載した電源を切り替え、もしくは併用する、いわゆるハイブリッド型の車両が必要とされる。
【０００３】
【発明が解決しようとする課題】
ところが、ハイブリッド型車両は、非電化区間においてパンタグラフを上げたまま走行できるので、例えば、入庫しようとしたときに、建屋等にパンタグラフをぶつけて壊してしまう虞がある。
【０００４】
そこで本発明は、ハイブリッド型車両が非電化区間に進入したときに、パンタグラフを上げていると走行できなくすることで、パンタグラフを保護する鉄道車両のパンタグラフ保護方法及び装置を提供することを目的としている。
【０００５】
【課題を解決するための手段】
上記した目的を達成するため、本発明の鉄道車両のパンタグラフ保護方法は、電化区間ではパンタグラフを介して架線からの給電を受けて電動機を駆動させるとともに車体に搭載した蓄電池に充電し、非電化区間では前記蓄電池から給電を受けて電動機を駆動させる鉄道車両において、請求項１の手段は、該鉄道車両が前記電化区間から前記非電化区間へ前記パンタグラフを下降させずに走行した場合であって、パンタグラフ昇降検知機がパンタグラフの上昇を検出するとともに架線電圧検出装置が架線電圧なしを検出したときに、前記電動機の駆動を停止させるとともに、走行を停止させることを特徴とし、請求項２の手段は、前記パンタグラフの下降をパンタグラフ昇降検知機が検出したとき、または、前記パンタグラフ昇降検知機がパンタグラフの上昇を検出するとともに架線電圧検出装置が架線電圧を検出したときに、前記電動機の起動を可能とすることを特徴とし、本発明の鉄道車両のパンタグラフ保護装置は、電化区間ではパンタグラフを介して架線からの給電を受けて電動機を駆動させるとともに車体に搭載した蓄電池に充電し、非電化区間では前記蓄電池から給電を受けて電動機を駆動させる鉄道車両において、請求項３の手段は、パンタグラフ昇降検知機と、架線電圧検出装置と、前記パンタグラフ昇降検知機がパンタグラフの上昇を検出するとともに前記架線電圧検出装置が架線電圧なしを検出したときに、車輪の回転を制動するブレーキを作動させる制御装置とを備えたことを特徴とし、請求項４の手段は、パンタグラフ昇降検知機と、架線電圧検出装置とを備え、前記パンタグラフ昇降検知機がパンタグラフの下降を検出したとき、または、前記パンタグラフ昇降検知機がパンタグラフの上昇を検出したときで、かつ、前記架線電圧検出装置が架線電圧を検出したときに、前記電動機の起動スイッチを起動可能とする電気回路を有することを特徴としている。
【０００６】
【発明の実施の形態】
以下、本発明を図面に示される実施形態例に基づいて説明する。構内車両移動機１は、車体２下部前後の台車３，３に、車輪４，４と該車輪４，４を駆動する電動機５とを有し、各車輪４に、車輪４の回転を制動するブレーキ６をそれぞれ備えている。車体２の屋根上には、架線７から集電するパンタグラフ８が設けられ、該パンタグラフ８の近傍の屋根上には、パンタグラフ８に設けたセンサー作動子９の近接・離間によって、パンタグラフ８の昇降を検出する、パンタグラフ昇降検知機として近接センサー１０が配設されている。
【０００７】
車体２内には、蓄電池１１と、該蓄電池１１に充電する充電装置１２が搭載され、充電装置１２には、前記パンタグラフ８からの動力電源回路１３が接続され、前記蓄電池１１とは動力電源回路１４で接続されている。前記動力電源回路１３には、架線電圧検出装置１５が動力電源回路１６にて接続され、前記動力電源回路１４には、前記電動機５がモータ制御装置１７を介して動力電源回路１８にて接続されている。充電装置１２は、パンタグラフ８による架線７から集電を受けて電動機５を駆動するととともに蓄電池１１に充電する。
【０００８】
また、車体２内には、制御装置１９が搭載されている。該制御装置１９は、前記ブレーキ６とは信号伝達回路２０で、前記近接センサー１０とは信号伝達回路２１で、前記蓄電池１１とは信号伝達回路２２で、前記架線電圧検出装置１５とは信号伝達回路２３で、前記モータ制御装置１７とは信号伝達回路２４でそれぞれ接続されている。また、該架線電圧検出装置１５と前記蓄電池１１とは信号伝達回路２５で接続されている。
【０００９】
制御装置１９の電気回路２６は、図３に示されるように、ライン２６ａ，２６ｂ，２６ｃ，２６ｄを有する。ライン２６ａのコイルＡが励磁されると接点Ａ１及び接点Ａ２が導通され、接点Ａ３の導通が解除される。ライン２６ｂのコイルＢが励磁されると接点Ｂ１が、ライン２６ｃのコイルＣが励磁されると接点Ｃ１が導通される。ライン２６ｄのコイルＤが励磁されると接点Ｄ１の導通が解除され、接点Ｄ２が導通される。
【００１０】
ライン２６ａは、コイルＡと接点Ｂ１と起動用スイッチＳＷ１とを直列接続し、接点Ａ１は起動用スイッチＳＷ１と並列接続している。ライン２６ｂは、コイルＢと接点Ｃ１と接点Ｄ１とを直列接続し、接点Ｄ２は接点Ｃ１と接点Ｄ１との直列接続に並列接続している。ライン２６ｃは、コイルＣと電圧有りで導通される電圧検出センサーＥの接点Ｅ１とを直列接続している。ライン２６ｄは、コイルＤとパンタグラフ折り畳み位置で導通されるパンタ位置検出センサーＦの接点Ｆ１とを直列接続している。また、走行用回路２７は、接点Ａ２が導通しているときに通電し、ブレーキ用回路２８は、接点Ａ３が導通しているときにブレーキ６を作動して制動を行う。
【００１１】
したがって、図４のフローチャートにも示されるように、パンタグラフ８が下降している時は、パンタ位置検出センサーＦの接点Ｆ１が導通され、ライン２６ｂの並列接続された接点Ｄ２が導通されることにより、コイルＢも励磁されるから、起動用スイッチＳＷ１を押すと前記電動機５の起動が可能となる。また、パンタグラフ８が下降していなくても、電圧検出センサーＥが架線電圧を検出していれば、接点Ｅ１が導通され、ライン２６ｂの直列接続された接点Ｃ１と接点Ｄ１との導通により、コイルＢも励磁されるから、起動用スイッチＳＷ１を押すと前記電動機５の起動が可能となる。なお、パンタグラフ８が下降しておらず、電圧検出センサーＥが架線電圧を検出していない場合は、接点Ｅ１及び接点Ｆ１が導通されないから、起動回路がＯＦＦになって、起動用スイッチＳＷ１を押しても前記電動機５を起動できない。
【００１２】
また、電化区間において、構内車両移動機１がパンタグラフ８を上昇させて架線７から集電し、架線電圧検出装置１５から電圧検出センサーＥに電圧有りの信号が送られていれば、パンタ位置検出センサーＦの接点Ｆ１の導通が解除されているものの、電圧検出センサーＥの接点Ｅ１が導通しているから、起動用スイッチＳＷ１を押してコイルＡが励磁されれば、走行用回路２７が通電状態になり、架線７及び蓄電池１１からの給電を受けて電動機５が駆動可能となり構内車両移動機１が走行できる。
【００１３】
架線７の無い非電化区間においては、架線電圧検出装置１５から電圧検出センサーＥに電圧無しの信号が送られ、接点Ｅ１の導通が解除されるものの、パンタグラフ８が下降している時は、パンタ位置検出センサーＦの接点Ｆ１が導通されるから、起動用スイッチＳＷ１を押して、コイルＡが励磁されれば、走行用回路２７が通電状態になり、前記蓄電池１１からの給電を受けて電動機５が駆動可能となり構内車両移動機１が走行できる。
【００１４】
しかしながら、構内車両移動機１が電化区間から非電化区間へ進入した場合に、パンタグラフ８が下降していなければ、架線電圧検出装置１５から電圧検出センサーＥに電圧無しの信号が送られ、接点Ｅ１の導通が解除されるとともに、パンタ位置検出センサーＦの接点Ｆ１の導通は解除されたままだから、走行用回路２７の導通が解除され、電動機５の駆動が停止するとともに、ブレーキ用回路２８の接点Ａ３が導通されてブレーキ６が作動して制動作用を行い、構内車両移動機１が停止する。
【００１５】
この場合には、パンタグラフ８を下降させて、パンタ位置検出センサーＦの接点Ｆ１を導通させ、起動用スイッチＳＷ１を押せば、接点Ａ１が導通して、走行用回路２７が通電状態になり、前記蓄電池１１からの給電を受けて電動機５が駆動可能となり構内車両移動機１が走行できる。
【００１６】
したがって、非電化区間に進入したときに、パンタグラフ８が下降していなければ走行できないから、パンタグラフ８を建屋等にぶつけて壊してしまうことがなくなり、パンタグラフ８を保護することができる。
【００１７】
【発明の効果】
以上説明したように、本発明のパンタグラフ保護方法及び装置によれば、ハイブリッド車両が非電化区間において、パンタグラフを上げたまま走行することを防止できる。したがって、有効にパンタグラフを保護することができる。
【図面の簡単な説明】
【図１】 構内車両移動機の搭載機器の概略図
【図２】 構内車両移動機の側面図
【図３】 制御装置の電気回路図
【図４】 制御装置の作用を示すフローチャート図
【符号の説明】
１…構内車両移動機、２…車体、３…台車、４…車輪、５…電動機、６…ブレーキ、７…架線、８…パンタグラフ、９…センサー作動子、１０…近接センサー、１１…蓄電池、１２…充電装置、１５…架線電圧検出装置、１９…制御装置、２６…電気回路、２７…走行用回路、２８…ブレーキ用回路[0001]
BACKGROUND OF THE INVENTION
The present invention is a method for protecting a pantograph of a railway vehicle that travels by receiving power from an overhead line via a pantograph in an electrified section and charges a storage battery mounted on a vehicle body and travels by receiving power from the storage battery in a non-electrified section, and Relates to the device.
[0002]
[Prior art]
For example, when an entrance vehicle is moved within an electrified vehicle base, there are places where there are no overhead lines depending on the location, so a local vehicle mobile device that can travel in a non-electrified section is indispensable. As a vehicle that can travel in a non-electrified section, a premises vehicle mobile device equipped with an internal combustion engine is generally used, but when the internal combustion engine is not used due to various circumstances, an overhead power source and a power source mounted on the own vehicle are used. A so-called hybrid vehicle that is switched or used together is required.
[0003]
[Problems to be solved by the invention]
However, since the hybrid type vehicle can travel with the pantograph raised in the non-electrified section, for example, when trying to enter, there is a possibility that the pantograph will hit the building or the like and be destroyed.
[0004]
Accordingly, an object of the present invention is to provide a pantograph protection method and apparatus for a railway vehicle that protects the pantograph by preventing the vehicle from traveling if the pantograph is raised when the hybrid vehicle enters a non-electrified section. Yes.
[0005]
[Means for Solving the Problems]
In order to achieve the above-described object, the pantograph protection method for a railway vehicle according to the present invention is such that the electrified section receives power from the overhead line via the pantograph to drive the electric motor and charges the storage battery mounted on the vehicle body, and the non-electrified section. Then, in a railway vehicle that receives power from the storage battery and drives an electric motor, the means of claim 1 is a case where the railway vehicle travels from the electrified section to the non-electrified section without lowering the pantograph , when pantograph lift detecting machine trolley voltage detecting device detects the rise of the pantograph detects no overhead wire voltage, it stops the driving of the motor, the travel and wherein the stopping means of claim 2, When the pantograph lift detector detects the descent of the pantograph, or the pantograph lift detector The pantograph protection device for a railway vehicle according to the present invention is characterized in that the rise of the graph is detected and when the overhead voltage detector detects the overhead voltage, the motor can be started. In the railway vehicle that drives the motor by receiving power from the overhead line and charges the storage battery mounted on the vehicle body and drives the motor by receiving power from the storage battery in the non-electrified section, the means of claim 3 is a pantograph lift and detectors, and overhead wire voltage detecting device, when the overhead wire voltage detecting device detects no overhead line voltage with the pantograph lift detectors detects the rise of the pantograph, the control for actuating the brake for braking the rotation of the wheel The means of claim 4 comprises a pantograph lift detector, an overhead wire voltage detector, Provided, when the pantograph lift detector detects a pantograph descent, or when the pantograph lift detector detects a pantograph rise, and when the overhead line voltage detection device detects an overhead line voltage, It is characterized by having an electric circuit that can start the start switch of the electric motor.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on an embodiment shown in the drawings. The on-premises vehicle mobile device 1 has wheels 4 and 4 and electric motors 5 that drive the wheels 4 and 4 on the carriages 3 and 3 at the lower part of the vehicle body 2. A brake 6 is provided. A pantograph 8 that collects current from the overhead line 7 is provided on the roof of the vehicle body 2, and the pantograph 8 is raised and lowered on the roof in the vicinity of the pantograph 8 by the proximity and separation of the sensor actuator 9 provided on the pantograph 8. A proximity sensor 10 is disposed as a pantograph raising / lowering detector for detecting.
[0007]
A storage battery 11 and a charging device 12 for charging the storage battery 11 are mounted in the vehicle body 2, and a power supply circuit 13 from the pantograph 8 is connected to the charging apparatus 12, and the storage battery 11 is a power supply circuit. 14 is connected. An overhead wire voltage detection device 15 is connected to the power supply circuit 13 through a power supply circuit 16, and the motor 5 is connected to the power supply circuit 14 through a motor control device 17 through a power supply circuit 18. ing. The charging device 12 receives the current collected from the overhead line 7 by the pantograph 8 to drive the electric motor 5 and charges the storage battery 11.
[0008]
A control device 19 is mounted in the vehicle body 2. The control device 19 is a signal transmission circuit 20 for the brake 6, a signal transmission circuit 21 for the proximity sensor 10, a signal transmission circuit 22 for the storage battery 11, and a signal transmission for the overhead wire voltage detection device 15. The circuit 23 is connected to the motor control device 17 by a signal transmission circuit 24. The overhead wire voltage detection device 15 and the storage battery 11 are connected by a signal transmission circuit 25.
[0009]
As shown in FIG. 3, the electric circuit 26 of the control device 19 has lines 26a, 26b, 26c, and 26d. When the coil A of the line 26a is excited, the contact A1 and the contact A2 are brought into conduction, and the conduction of the contact A3 is released. When the coil B of the line 26b is excited, the contact B1 is conducted, and when the coil C of the line 26c is excited, the contact C1 is conducted. When the coil D of the line 26d is excited, the contact D1 is released and the contact D2 is turned on.
[0010]
The line 26a connects the coil A, the contact B1, and the start switch SW1 in series, and the contact A1 is connected in parallel to the start switch SW1. Line 26b connects coil B, contact C1, and contact D1 in series, and contact D2 is connected in parallel to the series connection of contact C1 and contact D1. The line 26c connects the coil C and the contact E1 of the voltage detection sensor E that is conducted with voltage in series. The line 26d connects the coil D and the contact point F1 of the panta position detection sensor F that is conducted at the pantograph folding position in series. The driving circuit 27 is energized when the contact A2 is conductive, and the brake circuit 28 operates the brake 6 to perform braking when the contact A3 is conductive.
[0011]
Therefore, as shown in the flowchart of FIG. 4, when the pantograph 8 is lowered, the contact F1 of the pantograph position detection sensor F is turned on, and the contact D2 connected in parallel of the line 26b is turned on. Since the coil B is also excited, the motor 5 can be started by pressing the start switch SW1. Even if the pantograph 8 is not lowered, if the voltage detection sensor E detects an overhead wire voltage, the contact E1 is turned on, and the connection between the contact C1 and the contact D1 connected in series on the line 26b causes the coil Since B is also excited, the motor 5 can be started by pressing the start switch SW1. When the pantograph 8 is not lowered and the voltage detection sensor E is not detecting the overhead line voltage, the contact point E1 and the contact point F1 are not conducted, so the start-up circuit is turned off and the start-up switch SW1 is pressed. However, the electric motor 5 cannot be started.
[0012]
Further, in the electrified section, if the on-site vehicle mobile device 1 raises the pantograph 8 and collects current from the overhead line 7 and a signal with voltage is sent from the overhead line voltage detection device 15 to the voltage detection sensor E, the pantograph position is detected. Although the contact F1 of the sensor F is released, the contact E1 of the voltage detection sensor E is turned on. Therefore, if the coil A is excited by pressing the start switch SW1, the driving circuit 27 is turned on. Thus, the electric motor 5 can be driven by receiving power from the overhead line 7 and the storage battery 11, and the on-site vehicle mobile device 1 can travel.
[0013]
In the non-electrified section where there is no overhead line 7, a signal of no voltage is sent from the overhead line voltage detection device 15 to the voltage detection sensor E, and the conduction of the contact point E1 is released, but when the pantograph 8 is lowered, Since the contact F1 of the position detection sensor F is turned on, if the activation switch SW1 is pressed and the coil A is excited, the running circuit 27 is energized, and the electric motor 5 receives power from the storage battery 11 and It becomes possible to drive the on-site vehicle mobile device 1.
[0014]
However, when the on-premises vehicle mobile device 1 enters the non-electrified section from the electrified section, if the pantograph 8 is not lowered, a signal indicating no voltage is sent from the overhead line voltage detection device 15 to the voltage detection sensor E, and the contact E1. , And the contact of the contact point F1 of the panta position detection sensor F remains released, so that the continuity of the driving circuit 27 is released, the driving of the motor 5 is stopped, and the contact point of the brake circuit 28 is stopped. When A3 is turned on, the brake 6 is activated to perform a braking action, and the on-site vehicle mobile device 1 stops.
[0015]
In this case, the pantograph 8 is lowered, the contact F1 of the panta position detection sensor F is made conductive, and if the start switch SW1 is pressed, the contact A1 is made conductive and the running circuit 27 is energized. The electric motor 5 can be driven by receiving power supply from the storage battery 11 and the on-site vehicle mobile device 1 can travel.
[0016]
Therefore, when the vehicle enters the non-electrified section, the pantograph 8 cannot travel unless the pantograph 8 is lowered. Therefore, the pantograph 8 does not hit the building or the like and is destroyed, and the pantograph 8 can be protected.
[0017]
【The invention's effect】
As described above, according to the pantograph protection method and apparatus of the present invention, it is possible to prevent the hybrid vehicle from traveling while raising the pantograph in a non-electrified section. Therefore, the pantograph can be effectively protected.
[Brief description of the drawings]
[Fig. 1] Schematic diagram of equipment mounted on the premises vehicle mobile device [Fig. 2] Side view of the premises vehicle mobile device [Fig. 3] Electric circuit diagram of the control device [Fig. 4] Explanation】
DESCRIPTION OF SYMBOLS 1 ... Campus vehicle mobile device, 2 ... Vehicle body, 3 ... Bogie, 4 ... Wheel, 5 ... Electric motor, 6 ... Brake, 7 ... Overhead wire, 8 ... Pantograph, 9 ... Sensor actuator, 10 ... Proximity sensor, 11 ... Storage battery, DESCRIPTION OF SYMBOLS 12 ... Charging device, 15 ... Overhead voltage detection device, 19 ... Control device, 26 ... Electric circuit, 27 ... Driving circuit, 28 ... Brake circuit

Claims (4)

電化区間ではパンタグラフを介して架線からの給電を受けて電動機を駆動させるとともに車体に搭載した蓄電池に充電し、非電化区間では前記蓄電池から給電を受けて電動機を駆動させる鉄道車両において、該鉄道車両が前記電化区間から前記非電化区間へ前記パンタグラフを下降させずに走行した場合であって、パンタグラフ昇降検知機がパンタグラフの上昇を検出するとともに架線電圧検出装置が架線電圧なしを検出したときに、前記電動機の駆動を停止させるとともに、走行を停止させることを特徴とする鉄道車両のパンタグラフ保護方法。In a railway vehicle that receives power from an overhead line via a pantograph to drive a motor and charges a storage battery mounted on a vehicle body in an electrified section, and that receives power from the storage battery to drive a motor in a non-electrified section. there in a case where the vehicle travels without lowering the pantograph to the non-electrified section from the electrified section, when the overhead wire voltage detecting device detects no overhead wire voltage with pantograph lift detectors detects the rise of the pantograph, A method for protecting a pantograph of a railway vehicle, wherein driving of the electric motor is stopped and traveling is stopped. 電化区間ではパンタグラフを介して架線からの給電を受けて電動機を駆動させるとともに車体に搭載した蓄電池に充電し、非電化区間では前記蓄電池から給電を受けて電動機を駆動させる鉄道車両において、前記パンタグラフの下降をパンタグラフ昇降検知機が検出したとき、または、前記パンタグラフ昇降検知機がパンタグラフの上昇を検出するとともに架線電圧検出装置が架線電圧を検出したときに、前記電動機の起動を可能とすることを特徴とする鉄道車両のパンタグラフ保護方法。In the electrified section, in the railway vehicle that receives power from the overhead line via the pantograph to drive the motor and charges the storage battery mounted on the vehicle body, and in the non-electrified section to drive the motor by receiving power from the storage battery, the pantograph when lowered pantograph elevator detectors detects or, when the pantograph lift detectors are trolley voltage detecting device detects the rise of the pantograph detects a trolley voltage, characterized in that to enable activation of the motor A pantograph protection method for railway vehicles. 電化区間ではパンタグラフを介して架線からの給電を受けて電動機を駆動させるとともに車体に搭載した蓄電池に充電し、非電化区間では前記蓄電池から給電を受けて電動機を駆動させる鉄道車両において、パンタグラフ昇降検知機と、架線電圧検出装置と、前記パンタグラフ昇降検知機がパンタグラフの上昇を検出するとともに前記架線電圧検出装置が架線電圧なしを検出したときに、車輪の回転を制動するブレーキを作動させる制御装置とを備えたことを特徴とする鉄道車両のパンタグラフ保護装置。In the electrified section, pantograph lift detection is detected in a railway vehicle that receives power from the overhead line through the pantograph to drive the motor and charges the storage battery mounted on the car body, and in the non-electrified section to drive the motor by receiving power from the storage battery. a machine, a trolley voltage detecting device, when the overhead wire voltage detecting device detects no overhead line voltage with the pantograph lift detectors detects the rise of the pantograph, the control device for actuating the brake for braking the rotation of the wheel And a pantograph protection device for a railway vehicle. 電化区間ではパンタグラフを介して架線からの給電を受けて電動機を駆動させるとともに車体に搭載した蓄電池に充電し、非電化区間では前記蓄電池から給電を受けて電動機を駆動させる鉄道車両において、パンタグラフ昇降検知機と、架線電圧検出装置とを備え、前記パンタグラフ昇降検知機がパンタグラフの下降を検出したとき、または、前記パンタグラフ昇降検知機がパンタグラフの上昇を検出したときで、かつ、前記架線電圧検出装置が架線電圧を検出したときに、前記電動機の起動スイッチを起動可能とする電気回路を有することを特徴とする鉄道車両のパンタグラフ保護装置。In the electrified section, pantograph lift detection is detected in a railway vehicle that receives power from the overhead line through the pantograph to drive the motor and charges the storage battery mounted on the car body, and in the non-electrified section to drive the motor by receiving power from the storage battery. And an overhead wire voltage detector, when the pantograph lift detector detects a pantograph drop, or when the pantograph lift detector detects a pantograph lift, and the overhead wire voltage detector is An apparatus for protecting a pantograph for a railway vehicle, comprising: an electric circuit that can activate a start switch of the electric motor when an overhead line voltage is detected.
JP2002119512A 2002-04-22 2002-04-22 Railway vehicle pantograph protection method and apparatus Expired - Lifetime JP4121766B2 (en)

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