DE417650C - Device for securing power transmissions with multi-phase current - Google Patents
Device for securing power transmissions with multi-phase currentInfo
- Publication number
- DE417650C DE417650C DEL58925D DEL0058925D DE417650C DE 417650 C DE417650 C DE 417650C DE L58925 D DEL58925 D DE L58925D DE L0058925 D DEL0058925 D DE L0058925D DE 417650 C DE417650 C DE 417650C
- Authority
- DE
- Germany
- Prior art keywords
- phase
- damaged
- reserve
- line
- power transmissions
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/266—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving switching on a spare supply
Description
BibliotheekBibliotheek
Bur. Ind. EigendomBur. Ind. Self-dom
3- OCT-19253- OCT-1925
AUSGEGEBEN AH
17.AUGUST1925ISSUED AH
AUGUST 17, 1925
Bei elektrischen Kraftübertragungen muß darauf Rücksicht genommen werden, daß die verlegten Leitungen oder Kabel beschädigt werden können. Um zu vermeiden, daß in solchen Fällen eine größere Anzahl von Verbrauchern ni,cht mehr mit Strom versorgt werden kann, müssen im allgemeinen Reserveleitungen verlegt werden, die im Störungsfalle den Betrieb übernehmen können. Es ist nun nicht immer notwendig, daß bei Mehrphasenkraftübertragungen, beispielsweise Drehstromanlagen, nun auch ein Drehstromkabel alsIn the case of electrical power transmissions, care must be taken that the laid lines or cables can be damaged. To avoid being in such If a large number of consumers can no longer be supplied with electricity, reserve lines are generally required be relocated, which can take over operation in the event of a malfunction. It is not always necessary, in the case of multiphase power transmissions, that for example three-phase systems, now also a three-phase cable as
• Reserve benutzt: wird. Es sind vielmehr auch Anordnungen bekannt, bei denen es möglich i,st, bei Beschädigung einer einzelnen Phase den Betrieb aufrechtzuerhalten, indem man zur Übertragung des in der beschädigten Phase fließenden Stromes einen einzigen Reserveleiter benutzt. Diese bekannte Anord-• Reserve used: is used. Rather, they are too Arrangements are known in which it is possible if a single phase is damaged Maintain operations by going to transfer the in the damaged Phase of flowing current uses a single reserve conductor. This well-known arrangement
) nung setzt aber voraus, daß das Übertragungssystem sowohl am Anfang als auch am Ende einen zugänglichen Nullpunkt besitzt. Diese beiden Nullpunkte werden dann durch einen Nulleiter verbunden, der bei entsprechender Bemessung als Ersatz für den ausfallenden Phasenleiter benutzt werden kann.) tion assumes, however, that the transmission system both at the beginning and at the end has an accessible zero point. These two zero points are then replaced by a Neutral conductor connected, which, if dimensioned accordingly, can be used as a replacement for the failing Phase conductor can be used.
Durch die Erfindung soll nun eine Einrichtung geschaffen werden, welche erheblich einfacher ist als die bisher bekannte Einrichtung und welche nicht nur bei Anlagen mit zugänglichem Nullpunkt, sondern auch dann anwendbar i,st, wenn die Nullpunkte des Systems nicht zugänglich sind, wenn also beispielsweise die die Energie zuführenden Transformatoren sekundärseitig in Dreieck geschaltet sind. Die neue Anordnung hat außerdem den Vorteil, daß bei ihr der Reserveleiter mit dem gleichen Querschnitt ausgeführt werden kann wi.e die Hauptleiter, während bei der bekannten Einrichtung der Nulleiter beinahe den doppelten Querschnitt besitzen muß.The invention is now intended to create a device which is considerably simpler is than the previously known facility and which not only for systems with accessible Zero point, but also applicable i, st if the zero points of the system are not accessible, so if for example the transformers supplying the energy are connected in delta on the secondary side are. The new arrangement also has the advantage that with her the reserve conductor can be made with the same cross-section as the main conductor, while at the well-known establishment of the neutral conductor must have twice the cross-section.
Die Erfindung besteht darin, daß der Reservelei,tjer an jedem Ende durch je einen Schalter an jede beliebige Phase angeschlossen werden kann, wobei, zweckmäßig die Schaltung derart automatisch erfolgen soll, daß bei Beschädigung einer Phase selbsttätig diejenigen Schalter eingelegt werden, welcheThe invention consists in that the reserve, tjer can be connected to any phase by a switch at each end, with, expediently, the Switching should take place automatically in such a way that automatically if a phase is damaged those switches are inserted, which
die Reserveleitung an die der beschädigten Phase entsprechenden Sammelschienen anschließen. connect the reserve line to the busbars corresponding to the damaged phase.
Zur Erläuterung der Erfindung ist in der Zeichnung ein Ausführungsbeispiel dargestellt. α sind die vom Kraftwerk gespeisten Sammelschienen, b die Sammelschienen eines zweiten Kraftwerks oder einer Unterstation. Beide Sammelschienen sind durch die drei Leitungen c über di,e Ölschalter d, e miteinander verbunden. Um zu verhüten, daß bei Beschädigung einer Leitung auch die anderen beschädigt werden, werden die Leitungen c zweckmäßig· nicht als Drehstromkabel, sondern in an sich bekannter Weise als drei Einaderkabel verlegt. Als Reserveleitung wird das einadrige Kabel / benutzt, das über die Schalter g, h, i an die einzelnen Phasen der Sammelschienen a, b angelegt werden kann.To explain the invention, an embodiment is shown in the drawing. α are the busbars fed by the power plant, b the busbars of a second power plant or a substation. Both busbars are connected to one another by the three lines c via di, e oil switches d, e. In order to prevent the other lines from being damaged if one line is damaged, the lines c are expediently not laid as three-phase cables, but rather in a manner known per se as three single-core cables. The single-core cable / is used as a reserve line, which can be connected to the individual phases of the busbars a, b via switches g, h, i .
Wi.rd beispielsweise die mittlere Leitung1 c beschädigt, so werden die Schalter d2, e^ auslösen und die beschädigte Phase außer Betrieb setzen. Schaltet man dann die Schalter h ein, so wird die Leitung / als Ersatz der herausgefallenen Leitung dienen können. Wird eine der anderen Leitungen beschädigt, so wird einer der anderen Schalter g odan / eingeschaltet. Die Auswahl der Schalter und ihre Betätigung geschieht zweckmäßig automatisch in Abhängigkeit von der Betätigung der Schalter d und e. Wi.rd example, the average line 1 c damaged, so the switches d 2, e ^ trigger and set the damaged phase out of operation. If the switch h is then switched on, the line / can serve as a replacement for the line that has fallen out. If one of the other lines are damaged, is switched on one of the other switches g Odan /. The selection of the switches and their actuation is expediently done automatically as a function of the actuation of the switches d and e.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL58925D DE417650C (en) | 1923-11-03 | 1923-11-03 | Device for securing power transmissions with multi-phase current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL58925D DE417650C (en) | 1923-11-03 | 1923-11-03 | Device for securing power transmissions with multi-phase current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE417650C true DE417650C (en) | 1925-08-17 |
Family
ID=7279682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEL58925D Expired DE417650C (en) | 1923-11-03 | 1923-11-03 | Device for securing power transmissions with multi-phase current |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE417650C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007020265A1 (en) * | 2005-08-19 | 2007-02-22 | Siemens Aktiengesellschaft | Method for the operation of a power line, and arrangement comprising a power line |
-
1923
- 1923-11-03 DE DEL58925D patent/DE417650C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007020265A1 (en) * | 2005-08-19 | 2007-02-22 | Siemens Aktiengesellschaft | Method for the operation of a power line, and arrangement comprising a power line |
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