SU713715A1 - Method of short-circuiting current protection of multisection traction means - Google Patents
Method of short-circuiting current protection of multisection traction means Download PDFInfo
- Publication number
- SU713715A1 SU713715A1 SU772490956A SU2490956A SU713715A1 SU 713715 A1 SU713715 A1 SU 713715A1 SU 772490956 A SU772490956 A SU 772490956A SU 2490956 A SU2490956 A SU 2490956A SU 713715 A1 SU713715 A1 SU 713715A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- current
- switches
- traction means
- short
- protection
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 6
- 238000005096 rolling process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
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- Electric Propulsion And Braking For Vehicles (AREA)
Description
II
Изобретение относитс к релейной защите многосекционных т говых средств, преимущественно железнодорожного злектроподвижного состава, от токов короткого замыкани и может быть использовано в многосекционных формировани х т говых подвижных единиц, получающих питание от кон тактной сетки посредством нескольких токоприемников , электрически соединенных через высоковольтные выключател , включенные в соедин ющие эти токоприемники шину .The invention relates to the relay protection of multi-sectional means, mainly railway electrically-rolling stock, against short-circuit currents and can be used in multi-sectional formations of mobile units powered by a contact grid through several current collectors electrically connected via high-voltage switches connected in the busbars connecting these current collectors.
Известен способ защиты от тока короткого замыкани железнодорожных т говых средств, согласно которому высоковольтный выключатель секции электроподвижного состава располагаетс в ответвлении от крышевой щины, электрически соедин ющей токоприемники нескольких секций, и отключение его происходит при протекании через этот выключатель тока, превышающего установленное значение (ток уставки), причем значение выбираетс большим, чем максимальный ток, протекающий через выключатель в т говом режиме 1.There is a known method of protection against short-circuit current of railway transport means, according to which a high-voltage switch of an electric rolling stock section is located in a branch from a roof wrench electrically connecting current collectors of several sections, and it is disconnected when a current exceeding a set value flows through (setting current ), and the value is chosen greater than the maximum current flowing through the switch in the traction mode 1.
Недостатком указанного способа защиты вл етс то, что при параллельном соединении токоприемников единиц электроподвижного состава короткое замыкание в любом месте электрооборудований, расположенного между контактным проводом и выключател ми , приводит к выводу из стро всех электрически св занных единиц ЭПС.The disadvantage of this method of protection is that with parallel connection of current collectors of electric rolling stock units, a short circuit in any place of electrical equipment located between the contact wire and switches causes all electrically connected ESR units to be disconnected.
Ближайщим к изобретению по технической сущности и достигаемому результату вл етс способ защиты от тока короткого замыкани многосекционных т говых средств, содержащих электрически соединенньве через выключатели токоприемники, основанный на измерении величины и направлени протекающих через выключатель токов и сравнении величины токов с током уставки выключател , сравнении направлений протекани токов между собой и последующего отключени выключателей, при встречном направлении токов и одновременном превышении ими тока уставки выключател 2.The closest to the invention to the technical essence and the achieved result is a method of protection against short-circuit current of multi-section traction means containing electrically connected through current collector switches, based on measuring the magnitude and direction of the currents flowing through the switch and comparing the magnitude of the currents to the switch setting current, comparing the directions the flow of currents between them and the subsequent opening of the switches, with the opposite direction of the currents and their simultaneous excess of the current vki switch 2.
Однако известный способ защиты не обес печивает селективного отключени поврежHowever, the known method of protection does not ensure selective shutdown of damage
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772490956A SU713715A1 (en) | 1977-05-24 | 1977-05-24 | Method of short-circuiting current protection of multisection traction means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772490956A SU713715A1 (en) | 1977-05-24 | 1977-05-24 | Method of short-circuiting current protection of multisection traction means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU713715A1 true SU713715A1 (en) | 1980-02-05 |
Family
ID=20711076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772490956A SU713715A1 (en) | 1977-05-24 | 1977-05-24 | Method of short-circuiting current protection of multisection traction means |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU713715A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2394699C2 (en) * | 2005-04-05 | 2010-07-20 | Сименс Акциенгезелльшафт | Acoustic data i/o device in particular passenger railway vehicle |
| CN111711174A (en) * | 2019-11-20 | 2020-09-25 | 中国国家铁路集团有限公司 | A kind of relay protection method of traction network connected in series with multi-level opening and closing |
-
1977
- 1977-05-24 SU SU772490956A patent/SU713715A1/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2394699C2 (en) * | 2005-04-05 | 2010-07-20 | Сименс Акциенгезелльшафт | Acoustic data i/o device in particular passenger railway vehicle |
| CN111711174A (en) * | 2019-11-20 | 2020-09-25 | 中国国家铁路集团有限公司 | A kind of relay protection method of traction network connected in series with multi-level opening and closing |
| CN111711174B (en) * | 2019-11-20 | 2022-05-24 | 中国国家铁路集团有限公司 | Relay protection method for multi-stage switching station series connection traction network |
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