HVDC Kingsnorth was a high-voltage direct-current (HVDC) transmission system connecting Kingsnorth in Kent to two sites in London. It was at one time the only application of the technology of high voltage direct current transmission for the supply of transformer stations in a city, and the first HVDC link to be embedded within an AC system, rather than interconnecting two asynchronous systems. It was also the first HVDC scheme to be equipped with self-tuning harmonic filters and to be controlled with a "Phase Locked Oscillator", a principle which subsequently became standard on all HVDC systems.
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| - HGÜ Kingsnorth (de)
- Ligne à courant continu à haute tension Kingsnorth (fr)
- HVDC Kingsnorth (en)
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| - La ligne à courant continu à haute tension Kingsnorth est une liaison à haute tension courant continu entre le poste de dans le Kent, le poste de Beddington et celui de Willesden situés près de Londres. C'est la première application du courant continu pour alimenter une grande ville et également la première liaison au sein d'un unique réseau à courant alternatif synchrone, les liaisons précédentes liant des réseaux séparés. Elle est entièrement enterrée. L'installation est bipolaire, mais un seul câble à trois conducteurs est utilisé. Le pôle de tension positive, égale à 266 kV, relie Kingsnorth au poste de Beddington près de Croydon sur une distance de 59 km. Le pôle négatif, de même tension, relie Kingsnorth au poste de Willesden au nord de Londres sur une distance de 82 km. (fr)
- Die Hochspannungs-Gleichstrom-Übertragungsanlage Kingsnorth in London war die bis heute einzige Anwendung der Technik zur Hochspannungs-Gleichstrom-Übertragung zur Speisung von innerstädtischen Umspannwerken. Da die Anlage heute nicht mehr den Betriebsanforderungen entspricht, wurde sie 1987 stillgelegt und durch Drehstromkabel ersetzt. (de)
- HVDC Kingsnorth was a high-voltage direct-current (HVDC) transmission system connecting Kingsnorth in Kent to two sites in London. It was at one time the only application of the technology of high voltage direct current transmission for the supply of transformer stations in a city, and the first HVDC link to be embedded within an AC system, rather than interconnecting two asynchronous systems. It was also the first HVDC scheme to be equipped with self-tuning harmonic filters and to be controlled with a "Phase Locked Oscillator", a principle which subsequently became standard on all HVDC systems. (en)
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| - Die Hochspannungs-Gleichstrom-Übertragungsanlage Kingsnorth in London war die bis heute einzige Anwendung der Technik zur Hochspannungs-Gleichstrom-Übertragung zur Speisung von innerstädtischen Umspannwerken. Sie wurde in der ersten Hälfte der 1970er Jahre realisiert und ging 1975 in Betrieb. Sie führte vom Kraftwerk in Form eines 59 km langen bipolaren Erdkabels für eine Spannung von 266 kV zur Stromrichterstation in Beddington. Das Kabel verlief noch 26 km weiter als einpolige Verbindung zur Stromrichterstation in Willesden. Es bestand auch die Möglichkeit, wenn die Stromrichterstation Kingsnorth außer Betrieb war, die Anlage zwischen den Stationen Beddington und Willesden als einpolige HGÜ zu betreiben. Die HGÜ Kingsnorth war die letzte mit Quecksilberdampfgleichrichtern ausgerüstete HGÜ, wobei jeder Stromrichter für 266 kV aus zwei in Reihe geschalteten Drehstrombrücken für 132 kV bestand, die über je einen in Stern-Stern und einen in Stern-Dreieck-Schaltung geschalteten Transformator gespeist wurden. Alle später errichteten Anlagen verwendeten Thyristoren. Die HGÜ Kingsnorth konnte eine Gesamtleistung von 640 MW (320 MW pro Pol) übertragen. Da die Anlage heute nicht mehr den Betriebsanforderungen entspricht, wurde sie 1987 stillgelegt und durch Drehstromkabel ersetzt. (de)
- HVDC Kingsnorth was a high-voltage direct-current (HVDC) transmission system connecting Kingsnorth in Kent to two sites in London. It was at one time the only application of the technology of high voltage direct current transmission for the supply of transformer stations in a city, and the first HVDC link to be embedded within an AC system, rather than interconnecting two asynchronous systems. It was also the first HVDC scheme to be equipped with self-tuning harmonic filters and to be controlled with a "Phase Locked Oscillator", a principle which subsequently became standard on all HVDC systems. It was designed in the late 1960s and went into service in 1974. It ran from Kingsnorth power station as a 59 kilometers long bipolar (3-wire) underground cable. The positive pole operating at a voltage of +266 kV terminated at the converter station in Beddington near Croydon. The negative pole continued to run a further 26 kilometers at -266 kV line to a similar station at Willesden in North London. There was also the possibility, if the converter station in Kingsnorth was out of service, to run the system as monopolar HVDC between the Beddington and Willesden stations. The HVDC Kingsnorth was one of the last HVDC schemes equipped with mercury vapour rectifiers, which were ARAG/4-valves designed by English Electric. Each converter station for 266 kV consisted of two six-pulse valve bridges for 132 kV switched in series, which were each fed via a star-star and a star-delta connected transformer. Apart from the Nelson River Bipole 1 system in Canada, all later-built HVDC systems used thyristor valves. The Kingsnorth HVDC scheme could transfer a maximum power of 640 megawatts (320 megawatts per pole). In 1981, one mercury arc valve at Willesden Static Inverter Plant, was replaced by a H200 thyristor valve, developed by English Electric. The system described was shut down in 1986 or 1987 following system reinforcement on the network it was embedded in. However the capacitor banks located at Kingsorth were used for voltage control on the network. These were later removed from the system completely in the mid 1980s? (1990s?) as they contained PCB. (en)
- La ligne à courant continu à haute tension Kingsnorth est une liaison à haute tension courant continu entre le poste de dans le Kent, le poste de Beddington et celui de Willesden situés près de Londres. C'est la première application du courant continu pour alimenter une grande ville et également la première liaison au sein d'un unique réseau à courant alternatif synchrone, les liaisons précédentes liant des réseaux séparés. Elle est entièrement enterrée. L'installation est bipolaire, mais un seul câble à trois conducteurs est utilisé. Le pôle de tension positive, égale à 266 kV, relie Kingsnorth au poste de Beddington près de Croydon sur une distance de 59 km. Le pôle négatif, de même tension, relie Kingsnorth au poste de Willesden au nord de Londres sur une distance de 82 km. (fr)
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