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1. 发明专利

JP2003032882A Circuit for preventing extension of hindrance caused by high-voltage grounding of dc electric railway 有权
标题翻译：用于防止直流电力铁路高压接地造成延误的电路
公开(公告)号：JP2003032882A
公开(公告)日：2003-01-31
申请号：JP2001216756
申请日：2001-07-17
申请人： Jr Soken Denki System:Kk , Railway Technical Res Inst , 株式会社ジェイアール総研電気システム , 財団法人鉄道総合技術研究所
发明人： KAWAHARA TAKAHARU , HASE SHINICHI , ITO TOSHIKATSU
IPC分类号： H02H9/06 , H02H7/26
摘要： PROBLEM TO BE SOLVED: To see that as far as the feeder of adjacent another substation does not stop by the rounding of the DC bus of one substation or the grounding of the low-resistance external wire within a pipe.
SOLUTION: In a series circuit of a discharge circuit 1, the discharge voltage is smaller than the working voltage of a DC high-voltage grounding relay 42, and a resistor 43 for current detection is provided in place of a DC high-voltage grounding relay between the grounding mat 23 and the rail 21 of the substation 5. Even if the discharge gap discharge electricity by the grounding 24 of the DC bus of the substation 5 and an AC breaker 6 and DC breakers 10 to 13 become off, that relay 42 does not work since the discharge voltage of the discharge gap 1 is lower than the working voltage of the DC high-voltage grounding relay 42 in the substation 28, and the feeder continues without disconnecting an AC breaker 29 and DC breakers 33 to 36.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：只要相邻另一个变电站的馈线不会因一个变电站的直流母线的倒圆或管道内的低电阻外部电线的接地而停止。解决方案：在放电电路1的串联电路中，放电电压小于直流高压接地继电器42的工作电压，并且提供用于电流检测的电阻器43来代替直流高压接地继电器在接地垫23和变电站5的轨道21之间。即使通过变电站5的直流母线的接地24和交流断路器6以及直流断路器10至13的放电间隙放电电力断开，该继电器42 由于放电间隙1的放电电压低于变电站28中的直流高压接地继电器42的工作电压，因此不进行工作，并且馈电器在不断开AC断路器29和直流断路器33至36的情况下继续进行。

2. 发明专利

JP2004051027A Ac energization switching non-voltage time measuring device 有权
公开(公告)号：JP2004051027A
公开(公告)日：2004-02-19
申请号：JP2002213345
申请日：2002-07-23
申请人： Railway Technical Res Inst , 財団法人鉄道総合技術研究所
发明人： MORIMOTO HIROMI , KAWAHARA TAKAHARU , AGUI KOJI , HISAMIZU TAIJI , NAKAMICHI YOSHINOBU
IPC分类号： B60M3/04
摘要： PROBLEM TO BE SOLVED: To enable an accurate energization time to be measured at an AC energization switching location even if an electric current flowing to an incoming vehicle is low and even if there is present a residual voltage at the time of non-energization of a middle section trolley line. SOLUTION: A voltage waveform is read out of a middle section voltage waveform recording unit 41 by a time elapsing direction waveform reading-out unit 42 and a regional integration is carried out against the read-out voltage waveform by a first period integer time region integrator unit 43. A time in which its value does not become zero is detected and along with this operation, a voltage waveform is read out by a time elapsing inverse direction waveform reading-out unit 45, a regional integration is carried out by a second period integer times region integrator 46, a time in which the value does not become a zero value is detected, a differece between the aforesaid two times is detected by a time difference calculator 48 and this difference is applied as a non-energization time. . COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2004291712A Abnormal voltage protecting device of electric overhead line 有权
标题翻译：电力线异常电压保护装置
公开(公告)号：JP2004291712A
公开(公告)日：2004-10-21
申请号：JP2003084193
申请日：2003-03-26
申请人： Railway Technical Res Inst , Sankosha Corp , 株式会社サンコーシヤ , 財団法人鉄道総合技術研究所
发明人： AGUI KOJI , KAWAHARA TAKAHARU , MORIMOTO HIROMI , SATO RYOGO
IPC分类号： H01T4/08 , B60M3/00 , H01B17/46 , H02G1/02 , H02G7/00 , H02G13/00
摘要： PROBLEM TO BE SOLVED: To surely protect equipment arranged in an electric overhead line and to eliminate the adjustment of an arcing horn by surely performing discharge in also a ground fault in an electric traction support column such as a steel pipe column having low grounding resistance. SOLUTION: This device protects equipment from the ground fault of a power feeding circuit (feeder circuit) of the electric overhead line. A lighting arrester Ar performing discharge earlier than an air discharge gap G1 is disposed between a pair of arcing horns 5f and 5h formed with the air discharge gap G1. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了确保保护布置在电气架空线路中的设备，并且通过确保在电牵引支撑柱（例如具有低的钢管柱）的电牵引支撑柱中确定地进行放电也消除了电弧喇叭的调整接地电阻。
解决方案：该设备可保护设备免受电气架空线路的馈电电路（馈线电路）的接地故障。在空气放电间隙G1形成的一对电弧喇叭5f，5h之间，设置放电时间G1以前的放电灯Ar。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2004074921A Ac feeding circuit switching no-voltage time measuring device 有权
公开(公告)号：JP2004074921A
公开(公告)日：2004-03-11
申请号：JP2002237903
申请日：2002-08-19
申请人： Railway Technical Res Inst , 財団法人鉄道総合技術研究所
发明人： MORIMOTO HIROMI , KAWAHARA TAKAHARU , AGUI KOJI , HISAMIZU TAIJI , NAKAMICHI YOSHINOBU
IPC分类号： B60M3/04
摘要： PROBLEM TO BE SOLVED: To accurately measure no-feeding voltage time even if an electric current flowing to an entering vehicle is small and even if there is no-feeding time residual voltage of an intermediate section trolley wire in a feeding switching place of AC feeding.
SOLUTION: From a voltage recorder 26, a time elapse directional waveform reader 28 reads out V
N and V
A when an A switching switch is open (A is open), and reads out V
N and V
B when a B switching switch is open (B is open), and a first subtracter 30 respectively takes a difference, and a first non-zero value output time detector 32 respectively detects the time when becoming open. A time elapse inverse directional waveform reader 29 reads out V
N and V
A , and V
N and V
B when both A, B switching switches are closed (A is closed, and B is closed), and a second subtracter 31 takes a difference, and a second non-zero value output time detector 33 respectively detects the time when becoming closed, and a time difference calculator 34 calculate time when A is open and B is closed and when B is open and A is closed.
COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2000103260A AC FEEDING SWITCHING NO-VOLTAGE TIME MEASURING DEVICE 失效
公开(公告)号：JP2000103260A
公开(公告)日：2000-04-11
申请号：JP27563898
申请日：1998-09-29
申请人： RAILWAY TECHNICAL RES INST
发明人： KAWAHARA TAKAHARU , HISAMIZU TAIJI , MOCHINAGA YOSHIFUMI
IPC分类号： B60M1/28 , B60M3/00 , B60M3/04
摘要： PROBLEM TO BE SOLVED: To automatically and accurately measure switching no-voltage time of an AC feeding switching place on the ground every time when a vehicle normally passes. SOLUTION: In this device, an A current transformer 1 and a B current transformer 2 are respectively arranged in series to an A diverter switch 18 and a B diverter switch 19, and the logical product of electric current OFF detection of the A current transformer 1 and an opening command signal AO to the A diverter switch 18 outputted from an electric rolling stock position detecting track circuit 37 is taken by a start circuit 3 to use this as a start signal. While, the logical product of the electric current ON detection of the B current transformer 2 and a closing command signal BC to the B diverter switch 19 outputted from the track circuit 37 is taken by a stop circuit 4 to use this as a stop signal so that time up to the stop signal from the start signal is measured as switching no-voltage time by a timer circuit 5.

6. 发明专利

JP2003134657A DEVICE FOR PREVENTING UNNECESSARY ACTION OF SUBSTATION CAUSED BY GROUND FAULT OF DIRECT CURRENT FEEDING CIRCUIT 审中-公开
公开(公告)号：JP2003134657A
公开(公告)日：2003-05-09
申请号：JP2001330751
申请日：2001-10-29
申请人： RAILWAY TECHNICAL RES INST , JR SOKEN DENKI SYSTEM KK
发明人： KAWAHARA TAKAHARU , HASE SHINICHI , MORIMOTO HIROMI , ITO TOSHIKATSU
IPC分类号： H02H3/10 , H02H3/14 , H02H7/26
摘要： PROBLEM TO BE SOLVED: To prevent a breaker of a substation from being shut off by a ground fault accident in the area under the control of an adjacent substation, in a direct current electric railway. SOLUTION: It is so arranged that an electrical discharge gap 3 is provided between a rail 21 and a ground mat 23, a return feeder overcurrent relay 2 is provided in a return feeder 27, and furthermore an interruption controller 1 is provided which breaks an AC breaker 6 and DC breakers 10, 11, 12, 13 only when both a discharge detection signal from the electrical discharge gap 3 and a ground fault detection signal from the return feeder overcurrent relay 2 are received simultaneously, and which breaks, when a stringing ground fault signal is received from any of the feeding circuit overcurrent relays 14, 15, 16, 17, only the DC breaker that feeds power to that stringing on which the ground fault has occurred, irrespective of presence or absence of any other detection signal, and which does not interrupt the breaker in other conditions.

7. 发明专利

JP2002096659A PROTECTION DEVICE FOR AC/DC-SWITCHING-RAIL INSULATING SECTION 失效
公开(公告)号：JP2002096659A
公开(公告)日：2002-04-02
申请号：JP2000289759
申请日：2000-09-25
申请人： RAILWAY TECHNICAL RES INST , NISHINIPPON RYOKAKU TETSUDO KK , SHIZUKI ELECTRIC CO INC
发明人： KAWAHARA TAKAHARU , HATAKE TSUTOMU , TSUNAKAWA KUNIO , NISHIKAWA TOSHIAKI
IPC分类号： H02H9/04 , B60M3/04 , H01H9/54 , H01H33/59
摘要： PROBLEM TO BE SOLVED: To provide a protection device for an AC/DC-switching-rail insulating section, which enables to prevent an insulatier insulating a rail of AC side and of DC side, from burning and the above rails from melting even if a rail in a neutral section is relatively short. SOLUTION: At the connecting point between a DC feeding section and an AC feeding section, a connection circuit 4 is provided, which electrically connects the impedance bond 5 of the DC side rail 3 to the impedance bond of the AC side rail 1, the connection circuit having a resistance and a switching means 7 and 11.

8. 发明专利

JP2000103262A AC-DC SWITCHING RAIL ARC PREVENTIVE CIRCUIT 失效
公开(公告)号：JP2000103262A
公开(公告)日：2000-04-11
申请号：JP27563798
申请日：1998-09-29
申请人： RAILWAY TECHNICAL RES INST
发明人： KAWAHARA TAKAHARU , HASE SHINICHI , ITO TOSHIKATSU
IPC分类号： B60M3/04 , B60M3/00
摘要： PROBLEM TO BE SOLVED: To prevent generation of a spark when the rearmost wheel separates from an AC feeding side rail in a switching place of AC feeding/DC feeding in an electric railway. SOLUTION: In this circuit, a bypass circuit 2 is arranged between a neutral point of an impedance bond 13 of an AC feeding side rail 9 of an AC-DC switching place and a neutral point of an impedance bond 14 of a DC feeding side rail 10, and when a rolling stock passes through the AC-DC switching place to the DC side from the AC side, a disconnector 1 is closed until the rearmost wheel separates from the DC feeding side rail, and an electric current flowing to the AC feeding side rail 9 from the DC feeding side rail 10 is flowed through the bypass circuit 2.

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