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DE1025540B - Arrangement for temperature and power control of separate single-phase electrical heating devices, the number of which is three or a multiple of three - Google Patents

Arrangement for temperature and power control of separate single-phase electrical heating devices, the number of which is three or a multiple of three

Info

Publication number
DE1025540B
DE1025540B DEA25710A DEA0025710A DE1025540B DE 1025540 B DE1025540 B DE 1025540B DE A25710 A DEA25710 A DE A25710A DE A0025710 A DEA0025710 A DE A0025710A DE 1025540 B DE1025540 B DE 1025540B
Authority
DE
Germany
Prior art keywords
phase
transformer
heating devices
temperature
secondary windings
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.)
Pending
Application number
DEA25710A
Other languages
German (de)
Inventor
Hans Petter Flaathe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Norden Holding AB
Original Assignee
ASEA AB
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 by ASEA AB filed Critical ASEA AB
Publication of DE1025540B publication Critical patent/DE1025540B/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00Control of temperature
    • G05D23/19Control of temperature characterised by the use of electric means
    • G05D23/20Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/22Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element being a thermocouple
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00Control of temperature
    • G05D23/19Control of temperature characterised by the use of electric means
    • G05D23/1927Control of temperature characterised by the use of electric means using a plurality of sensors
    • G05D23/193Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
    • G05D23/1932Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces
    • G05D23/1934Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces each space being provided with one sensor acting on one or more control means

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Remote Sensing (AREA)
  • Control Of Resistance Heating (AREA)

Description

Von einphasigen, selbst nicht regelbaren. Heizvorrichtungen, die in einer Anzahl von Drei oder einem Vielfachen von Drei installiert sind und von einem symmetrischen Drehstromsystem gespeist werden, wird oft eine gesonderte Temperatur- und Leistungsregelung verlangt. Dies kann in bekannter Weise dadurch erreicht werden, daß man drei getrennte, temperaturgesteuerte zweipolige Schütze verwendet, die auf der Primärseite von drei getrennten, spannungsgeregelten Einphasentransformatoren zur Speisung der genannten Heizvorrichtungen mit je einem Schütz je Transformator eingeschaltet sind.From single-phase, even not controllable. Heating devices that come in a number of three or one Multiples of three are installed and fed by a symmetrical three-phase system, a separate temperature and power control is often required. This can be done in a known manner be achieved that one uses three separate, temperature-controlled two-pole contactors, the on the primary side of three separate, voltage-regulated single-phase transformers for supply of the heating devices mentioned are switched on with one contactor per transformer.

Nur für die gesonderte Regelung der Leistung von Hand oder selbsttätig und/oder für die gemeinsame Regelung der Leistung für die genannten Heizvorrichtungen können in ebenfalls bekannter Weise drei Einphasentransformatoren oder ein Dreiphasentransformator der Manteltype mit Lastschaltern oder Stufenschaltern zur Betätigung im Betrieb oder in spannungslosem Zustand ausgerüstet werden.Only for the separate regulation of the service manually or automatically and / or for the joint Regulation of the power for the heating devices mentioned can also be used in a known manner Way three single-phase transformers or one three-phase transformer of the jacket type with load switches or step switches for actuation during operation or in the de-energized state will.

Demgegenüber ist die Erfindung gekennzeichnet durch die Kombination eines Dreiphasen-Manteltransformatoa-s, dessen Primärwicklungen jeder Phase getrennt am Drehstromnetz angeschlossen sind, derart, daß eine äußere Dreieckschaltung entsteht und jede Primärwicklung mit einer Anzahl von Regelanzapfungen ausgeführt ist, die an gesondert von Hand betätigbare oder selbsttätig temperaturgesteuerte Last- oder Stufenschalter angeschlossen sind, und von. getrennten, in die beiden Zuleitungen von jeder Primärwicklung zum speisenden Sammelschienensystem eingeschalteten zweipoligen Schützen oder Schaltern, die von Hand betätigt oder von den Temperaturwächtern, in den getrennten an den Sekundärwicklungen des Transformators angeschlossenen Heizvorrichtungen gesteuert werden, die jede aus zwei an vier Klemmen geführten Hälften für Reihen- oder Parallelschaltung in jeder sekundären Wicklungsphase bestehen.. Die Eckpunkte der Dreieckschaltung sind, gewissermaßen in. das speisende Sammelschienensystem verlegt. Die Unterbrechungsorgane werden von Hand betätigt oder von Temperaturwächtern in den gesonderten, an den Sekundärwicklungen des Transformators angeschlossenen Heizvorrichtungen gesteuert, die jede aus zwei Hälften mit vier Klemmen für Reihen- oder Parallelschaltung in jeder sekundären Wicklungsphase bestehen.In contrast, the invention is characterized by the combination of a three-phase jacket transformer, whose primary windings of each phase are connected separately to the three-phase network, in such a way that that an outer delta connection is created and each primary winding with a number of control taps is carried out, the separately manually operated or automatically temperature-controlled Load switches or tap changers are connected, and from. separate, in the two leads from each Primary winding to the feeding busbar system switched on two-pole contactors or Switches that are operated manually or by the temperature monitors, in the separate heating devices connected to the secondary windings of the transformer can be controlled, each consisting of two halves led to four clamps for series or There are parallel connections in every secondary winding phase. The corner points of the delta connection are, so to speak, in. the feeding busbar system relocated. The interruption devices are operated manually or by temperature monitors in the controlled by separate heating devices connected to the secondary windings of the transformer, each consisting of two halves with four terminals for series or parallel connection in each secondary Winding phase exist.

Die Vorteile dieser Anordnung sind, daß nur ein Dreiphasentransformator benötigt ist an Stelle von drei Einphasentransformatoren für drei einphasig angeschlossene Heizvorrichtungen oder Öfen, insbesondere elektrische Blockwärmeöfen. Hierdurch werden große Ersparnisse im Preis, Gewicht und Platz AnordnungThe advantages of this arrangement are that only a three phase transformer is required instead of three single-phase transformers for three single-phase connected heating devices or ovens, in particular electric block heating furnaces. This results in great savings in price, weight and space arrangement

zur Temperatur- und Leistungsregelung gesonderter einphasiger elektrischerfor temperature and power control of separate single-phase electrical

Heizvorrichtungen, deren Anzahl DreiHeating devices, the number of which is three

oder ein Vielfaches von Drei istor a multiple of three

Anmelder:Applicant:

Allmänna Svenska Elektriska
Aktiebolaget, Västeräs (Schweden)
Allmänna Svenska Elektriska
Aktiebolaget, Västeräs (Sweden)

Vertreter: Dipl.-Ing. H. Missling, Patentanwalt,
Gießen, Bismarckstr. 43
Representative: Dipl.-Ing. H. Missling, patent attorney,
Giessen, Bismarckstrasse. 43

Beanspruchte Priorität:
Schweden vom 22. September 1955
Claimed priority:
Sweden 22 September 1955

Hans Petter Flaathe, Västeräs (Schweden),
ist als Erfinder genannt worden
Hans Petter Flaathe, Västeräs (Sweden),
has been named as the inventor

gemacht, außerdem werden der Wirkungsgrad und die Betriebssicherheit verbessert.made, in addition, the efficiency and operational safety are improved.

Die Erfindung ist im folgenden, an Hand der Zeichnung beschrieben, die in den Fig. 1, 2 und. 3 drei verschiedene Schaltarten der Heizvorrichtungen gemäß der Erfindung zeigt.The invention is described below with reference to the drawing described in Figs. 1, 2 and. 3 three different types of switching of the heating devices according to of the invention shows.

Der dreiphasige Manteltransformator ist in Fig. 1 generell mit 1 bezeichnet. Jede Primärwicklung 2 hat Anzapfungen 3 für getrennte Spannungsregelung jeder Phase. Die Primärwicklungen des Transformators sind, durch das speisende Sammelschienensystem 4 in Dreieck geschaltet. Die Spannungsregelung erfolgt mit Hilfe von gewöhnlichen Stufenschaltern, oder Lastschaltern 5, die getrennt von Hand oder automatisch in Abhängigkeit von. den Ofentemperaturen mit Hilfe von Thermoelementen 7 über Regler 9 betätigt werden. Diese Regelung ist durch den Umschalter 12 angedeutet. In den Zuleitungen zu den Primärwicklungen sind zweipolige Schütze 6 oder Schalter angeordnet, die von Hand betätigt oder von Thermoelementen 7 beeinflußt werden, die an den einzelnen Öfen 8 angeordnet sind. Mit 9 sind die Temperatur- und Leistungsregler bezeichnet. Um zwei Reihen Sekundärspannungen zu erhalten, die im Verhältnis 1 :2 stehen, werden die Sekundärwicklungen 10 des Transformators in an sich be-The three-phase jacket transformer is designated generally by 1 in FIG. 1. Each primary winding has 2 Taps 3 for separate voltage regulation of each phase. The primary windings of the transformer are connected in delta by the feeding busbar system 4. The voltage regulation takes place with the help of ordinary tap changers, or load switches 5, which are separated from Manually or automatically depending on. the oven temperatures with the help of thermocouples 7 can be operated via controller 9. This regulation is indicated by the switch 12. In the supply lines Two-pole contactors 6 or switches, which are operated by hand, are arranged for the primary windings or be influenced by thermocouples 7, which are arranged on the individual ovens 8. With 9 the temperature and power controllers are designated. To get two rows of secondary voltages, which have a ratio of 1: 2, the secondary windings 10 of the transformer are

709 908/361709 908/361

kannter Weise in zwei Hälften ausgeführt. Der Anfang und das Ende der beiden Wicklungshälften werden je Phase für Reihen- und Parallelschaltung mit Hilfe eines Umschalters 11 herausgeführt.As is known, executed in two halves. The beginning and the end of the two halves of the winding are brought out for each phase for series and parallel connection with the help of a switch 11.

Gemäß Fig. 2 sind die drei einphasigen Heizvorrichtungen miteinander in offener Dreieckschaltung verbunden und als dreiphasige Belastung an den Sekundärwicklungen des Transformators angeschlossen, die ebenfalls miteinander in offener Dreieckschaltung verbunden sind. Die Reihen- und Parallelschaltung erfolgt mit Hilfe von Umschaltern lls bzw. 11p.According to FIG. 2, the three single-phase heating devices are connected to one another in an open delta circuit and connected as a three-phase load to the secondary windings of the transformer, which are also connected to one another in an open delta circuit. The series and parallel connection takes place with the help of switches ll s and 11p.

Gemäß Fig. 3 sind die drei einphasigen Heizvorrichtungen miteinander in Y-Schaltung verbunden und als dreiphasige Belastung an den Sekundärwicklungen des Transformators angeschlossen, die ebenfalls miteinander in Y-Schaltung verbunden sind. Der Nullpunkt der Belastung ist mit dem Nullpunkt der Sekundärwicklungen verbunden.According to FIG. 3, the three single-phase heating devices are connected to one another in a Y-connection and connected as a three-phase load to the secondary windings of the transformer, the are also connected to each other in a Y-connection. The zero point of the load is with the zero point of the secondary windings connected.

2020th

Claims (3)

PATENTANSPRÜCHE:PATENT CLAIMS: 1. Anordnung zur Temperatur- und Leistungsregelung von gesonderten einphasigen elektrischen Heizvorrichtungen, die von einem Dreiphasennetz gespeist werden, beispielsweise Blockwärmeöfen, deren Anzahl Drei oder ein Vielfaches von Drei ist, gekennzeichnet durch die Kombination eines Dreiphasen-Manteltransformators, dessen Primärwicklungen jeder Phase getrennt am Drehstromnetz angeschlossen sind, derart, daß eine äußere Dreieckschaltung entsteht und jede Primärwicklung mit einer Anzahl von Regelanzapfungen ausgeführt ist, die an gesondert von Hand betätigbare oder selbsttätig temperaturgesteuerte Last- oder Stufenschalter angeschlossen sind, und von getrennten, in die beiden Zuleitungen von jeder Primärwicklung zum speisenden Sammelschienensystem eingeschalteten zweipoligen Schützen oder Schaltern, die von. Hand betätigt oder von den Temperaturwächtern in den getrennten, an den Sekundärwicklungen des Transformators angeschlossenen Heizvorrichtungen gesteuert werden, die jede aus zwei an vier Klemmen geführten. Hälften für Reihen- oder Parallelschaltung in jeder sekundären Wicklungsphase bestehen. 1. Arrangement for temperature and power control of separate single-phase electrical Heating devices that are fed by a three-phase network, for example block heating furnaces, the number of which is three or a multiple of three, indicated by the combination a three-phase sheathed transformer, the primary windings of each phase separately on the three-phase network are connected in such a way that an outer delta connection is formed and each primary winding is designed with a number of rule taps, which can be operated separately by hand or automatically temperature-controlled load switches or step switches are connected, and from separate, in the two leads from each primary winding to the feeding Busbar system switched on two-pole contactors or switches that are operated by. Hand operated or from the temperature monitors in the separate ones on the secondary windings of the transformer connected heating devices, each consisting of two to four Terminals guided. There are halves for series or parallel connection in each secondary winding phase. 2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die drei einphasigen Heizvorrichtungen miteinander in Dreieckschaltung verbunden und als eine Dreiphasenbelastung an den Sekundärwicklungen des Transformators angeschlossen sind, die ebenfalls miteinander in Dreieckschaltung verbunden sind.2. Arrangement according to claim 1, characterized in that that the three single-phase heaters are connected together in a delta connection and presented as a three-phase load the secondary windings of the transformer are connected, which are also connected to each other in Delta connection are connected. 3. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die drei einphasigen Heizvorrichtungen miteinander in. Y-Schaltung verbunden und als eine Dreiphasenbelastung an den Sekundärwicklungen des Transformators angeschlossen sind, die ebenfalls miteinander in Y-Schaltuug verbunden sind, wobei der Nullpunkt der Belastung mit dem Nullpunkt der Sekundärwicklungen verbunden ist.3. Arrangement according to claim 1, characterized in that the three single-phase heating devices connected to each other in. Y-connection and as a three-phase load on the secondary windings of the transformer are connected, which are also connected to each other in a Y-circuit where the zero point of the load is connected to the zero point of the secondary windings is. Hierzu 1 Blatt Zeichnungen1 sheet of drawings © 709 MS/361 2.58© 709 MS / 361 2.58
DEA25710A 1955-09-22 1956-09-21 Arrangement for temperature and power control of separate single-phase electrical heating devices, the number of which is three or a multiple of three Pending DE1025540B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE829310X 1955-09-22
SE1025540X 1955-09-22

Publications (1)

Publication Number Publication Date
DE1025540B true DE1025540B (en) 1958-03-06

Family

ID=62043958

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA25710A Pending DE1025540B (en) 1955-09-22 1956-09-21 Arrangement for temperature and power control of separate single-phase electrical heating devices, the number of which is three or a multiple of three

Country Status (2)

Country Link
DE (1) DE1025540B (en)
GB (1) GB829310A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1172400B (en) * 1959-04-10 1964-06-18 Aeg Furnace plant with several electric induction furnaces
US4011430A (en) * 1975-05-06 1977-03-08 National Forge Company Multizone electrical furnace methods and apparatus
US4015104A (en) * 1975-01-17 1977-03-29 Carrier Corporation Control system for electrically operated heat generating apparatus
US5021637A (en) * 1989-04-03 1991-06-04 Oy Helo-Tehtaat Helo-Factories Ltd. Method of controlling the supply of electric power to an electric sauna heater

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1172400B (en) * 1959-04-10 1964-06-18 Aeg Furnace plant with several electric induction furnaces
US4015104A (en) * 1975-01-17 1977-03-29 Carrier Corporation Control system for electrically operated heat generating apparatus
US4011430A (en) * 1975-05-06 1977-03-08 National Forge Company Multizone electrical furnace methods and apparatus
US5021637A (en) * 1989-04-03 1991-06-04 Oy Helo-Tehtaat Helo-Factories Ltd. Method of controlling the supply of electric power to an electric sauna heater

Also Published As

Publication number Publication date
GB829310A (en) 1960-03-02

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