JPH03113230U - - Google Patents

Info

Publication number
JPH03113230U
JPH03113230U JP2363590U JP2363590U JPH03113230U JP H03113230 U JPH03113230 U JP H03113230U JP 2363590 U JP2363590 U JP 2363590U JP 2363590 U JP2363590 U JP 2363590U JP H03113230 U JPH03113230 U JP H03113230U
Authority
JP
Japan
Prior art keywords
voltage
turned
power converter
load
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2363590U
Other languages
Japanese (ja)
Other versions
JP2553782Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1990023635U priority Critical patent/JP2553782Y2/en
Publication of JPH03113230U publication Critical patent/JPH03113230U/ja
Application granted granted Critical
Publication of JP2553782Y2 publication Critical patent/JP2553782Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Rectifiers (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図ａは本考案の一実施例を示す主回路図、
第１図ｂは本考案の一実施例の制御部の回路図、
第２図は従来装置の一例を示す回路図、第３図は
従来装置の他の例を示す回路図、第４図は整流器
の出力特性図である。 １……整流器、３……電圧抑制用の抵抗、１４
……第１半導体スイツチ回路、１５……ダミー抵
抗、２４……第２半導体スイツチ回路、３１……
無負荷状態判定回路、３２……電圧検出回路、３
３……回生電流検出回路、Ｐ……正極母線、Ｎ…
…負荷母線、Ｒ１，Ｒ２……電圧検出用分圧抵抗
、ＣＴ１，ＣＴ２……変流器、Ｘ……制御部。 FIG. 1a is a main circuit diagram showing an embodiment of the present invention;
FIG. 1b is a circuit diagram of a control section of an embodiment of the present invention;
FIG. 2 is a circuit diagram showing an example of a conventional device, FIG. 3 is a circuit diagram showing another example of the conventional device, and FIG. 4 is an output characteristic diagram of a rectifier. 1... Rectifier, 3... Resistor for voltage suppression, 14
...First semiconductor switch circuit, 15...Dummy resistor, 24...Second semiconductor switch circuit, 31...
No-load state determination circuit, 32... Voltage detection circuit, 3
3...Regenerative current detection circuit, P...Positive bus bar, N...
...Load bus bar, R1 , R2 ...Voltage detection dividing resistor, CT1 , CT2 ...Current transformer, X...Control unit.

Claims (1)

【実用新案登録請求の範囲】 交流電力を順電力変換器によつて直流変換し、
該直流電力を電車線下の電気車に供給する直流式
電気鉄道の給電装置において、 前記順電力変換器の正極、負極母線間に、無負
荷時にオン制御され、有負荷時にオフ制御される
第１のスイツチおよびダミー抵抗から成る第１直
列回路と、前記順電力変換器の正極母線電圧が所
定の設定電圧以上のときオン制御され、前記電気
車の回生運転時の回生電流が所定の設定電流以下
になつたときオフ制御される第２のスイツチおよ
び電圧抑制素子から成る第２直列回路とを並列に
接続したことを特徴とする直流式電気鉄道の電圧
抑制装置。[Scope of claim for utility model registration] Converting AC power to DC using a forward power converter,
In a power supply device for a DC electric railway that supplies the DC power to an electric car under a contact line, a power supply is provided between the positive and negative bus bars of the forward power converter, which is controlled to be turned on when there is no load and controlled to be turned off when there is a load. A first series circuit consisting of a switch 1 and a dummy resistor is turned on when the positive bus voltage of the forward power converter is equal to or higher than a predetermined set voltage, and the regenerative current during regenerative operation of the electric vehicle is set to a predetermined set current. 1. A voltage suppressing device for a DC electric railway, characterized in that a second switch that is turned off when the voltage is below and a second series circuit comprising a voltage suppressing element are connected in parallel.
JP1990023635U 1990-03-08 1990-03-08 Voltage suppression device for DC electric railway Expired - Fee Related JP2553782Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990023635U JP2553782Y2 (en) 1990-03-08 1990-03-08 Voltage suppression device for DC electric railway

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990023635U JP2553782Y2 (en) 1990-03-08 1990-03-08 Voltage suppression device for DC electric railway

Publications (2)

Publication Number Publication Date
JPH03113230U true JPH03113230U (en) 1991-11-19
JP2553782Y2 JP2553782Y2 (en) 1997-11-12

Family

ID=31526617

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990023635U Expired - Fee Related JP2553782Y2 (en) 1990-03-08 1990-03-08 Voltage suppression device for DC electric railway

Country Status (1)

Country Link
JP (1) JP2553782Y2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54133319U (en) * 1978-03-09 1979-09-14
JPS56157201A (en) * 1980-05-01 1981-12-04 Kinki Sharyo Kk Absorbing device of regenerated power for rolling stock
JPS58119431U (en) * 1982-02-08 1983-08-15 株式会社明電舎 DC feeding circuit
JPS6194832A (en) * 1984-10-16 1986-05-13 Toshiba Corp Regenerative power absorbing device
JPS6264191U (en) * 1985-10-14 1987-04-21
JPS6288629A (en) * 1985-10-15 1987-04-23 Meidensha Electric Mfg Co Ltd Control method for railway substation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54133319U (en) * 1978-03-09 1979-09-14
JPS56157201A (en) * 1980-05-01 1981-12-04 Kinki Sharyo Kk Absorbing device of regenerated power for rolling stock
JPS58119431U (en) * 1982-02-08 1983-08-15 株式会社明電舎 DC feeding circuit
JPS6194832A (en) * 1984-10-16 1986-05-13 Toshiba Corp Regenerative power absorbing device
JPS6264191U (en) * 1985-10-14 1987-04-21
JPS6288629A (en) * 1985-10-15 1987-04-23 Meidensha Electric Mfg Co Ltd Control method for railway substation

Also Published As

Publication number Publication date
JP2553782Y2 (en) 1997-11-12

Similar Documents

Publication Publication Date Title
JPH03113230U (en)
JPS6370230U (en)
JPS6317538U (en)
JPS63187542U (en)
JPS60174492U (en) Inrush current suppression device for inverter
JPH0363087U (en)
JPH03111143U (en)
JPH03117386U (en)
JPS6259527U (en)
JPH0397349U (en)
JPS6447591U (en)
JPS62185401U (en)
JPH0294435U (en)
JPS6270636U (en)
JPS62182092U (en)
JPS62149277U (en)
JPS6437339U (en)
JPH0435631U (en)
JPS63131591U (en)
JPH0257228U (en)
JPS6445443U (en)
JPH0334645U (en)
JPS6355786U (en)
JPS6034788U (en) power converter
JPS58153584U (en) Protection circuit for power conversion equipment

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees