EP0196249B1 - Beleuchtungseinrichtung, insbesondere für wasserdichten Flugplatzkasten - Google Patents

Beleuchtungseinrichtung, insbesondere für wasserdichten Flugplatzkasten Download PDF

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Publication number
EP0196249B1
EP0196249B1 EP19860400463 EP86400463A EP0196249B1 EP 0196249 B1 EP0196249 B1 EP 0196249B1 EP 19860400463 EP19860400463 EP 19860400463 EP 86400463 A EP86400463 A EP 86400463A EP 0196249 B1 EP0196249 B1 EP 0196249B1
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EP
European Patent Office
Prior art keywords
lamp
current
current transformer
transformer
clipping
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 - Lifetime
Application number
EP19860400463
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English (en)
French (fr)
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EP0196249A1 (de
Inventor
Jean-Pierre Nicolas
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.)
Ets AUGIER SA
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Ets AUGIER SA
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Publication date
Application filed by Ets AUGIER SA filed Critical Ets AUGIER SA
Publication of EP0196249A1 publication Critical patent/EP0196249A1/de
Application granted granted Critical
Publication of EP0196249B1 publication Critical patent/EP0196249B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/46—Circuits providing for substitution in case of failure of the lamp

Definitions

  • the invention lies in the fields of public lighting or intended for the public.
  • FR-A 2,430,707 is already known for lighting installations comprising an AC power supply circuit, of the regulated current loop type.
  • a regulated current loop which generally operates at alternating medium voltage, travels in series through the primary windings of medium voltage / low voltage transformers. Through their secondary, these transformers in turn each supply a plurality of lighting devices, electrically connected in series, and belonging to respective indicator boxes.
  • Such indicator boxes are often used, especially in airports. Their front face is provided with an indication intended for the users, for example an arrow or a letter.
  • these indicator boxes have mostly been fitted with metal halide filament lamps, similar to those used for beacon lights. A detailed example of the structure of such a known box will be given below.
  • the main object of the present invention is to improve this kind of installation.
  • the invention provides a lighting device suitable for being part of a lighting installation of the type defined above.
  • each lighting device comprises a current transformer, the secondary of which supplies at least one fluorescent lamp, with its ignition / regulation members; the primaries of the current transformers of the various lighting devices are intended to be mounted in series in the secondary circuit of the medium-voltage / low-voltage transformer, the primary circuit of which is reminded that it is supplied by the regulated current loop; finally, the secondary of each current transformer is provided in parallel with clipping devices capable of consuming, when the associated lamp fails, a substantial fraction of the nominal energy required by the latter. This preserves the flow of nominal current to the primary windings of the other current transformers, thus ensuring the proper functioning of the rest of the installation.
  • the clipping members consist of two high voltage clipping diodes, mounted in head to tail series.
  • a tuning member capable of providing an overvoltage characteristic by resonance.
  • this characteristic of overvoltage by resonance is adjusted so that the secondary alternating voltage supplied decreases very quickly as soon as the secondary load increases, which accelerates, the ignition of the fluorescent lamp, and that the current passing through the organs of clipping is greatly reduced as soon as the secondary voltage reaches the clipping value.
  • Such a tuning device may include a capacitor.
  • each lighting device comprises two lamps connected alternately by an inverter to the secondary of the current transformer, and switching means, which react to the number of lights of a first lamp during a time greater than its ignition time by actuating the inverter to put the second lamp into service.
  • such a device may include a base plate provided with oblong fixing openings, and which supports a block of overmolded synthetic material, having an intermediate level where the lamp or lamps are mounted, and a higher level from which the terminals of the primary of the current transformer emerge; the electronic circuits and this transformer are embedded in said block.
  • the switching means will then preferably comprise a photodetector housed in a column removably mounted on this block, and capable of bringing the photodetector substantially into contact with the illuminating part of the first lamp.
  • FIG. 1 shows a medium voltage circuit MT, arranged in a regulated current loop BDCR, and comprising n times a medium voltage / low voltage transformer. This therefore has a medium voltage PMT primary and a low voltage secondary SBT each time.
  • the low-voltage circuit thereof supplies several indicator boxes CI1 to C14 in series.
  • each indicator box comprises for example two metal halide filament lamps, such as the lamps LF11 and LF12 for the box 01. Most often, these two lamps are arranged one at the top and the another in the lower part of the box.
  • each box uses two 45 watt lamps electrically connected in series. All the boxes are themselves connected in series to the low voltage terminals of an isolation transformer, the primary of which is supplied by a constant current loop between 5.5 and 6.6 Amps.
  • the electrical power consumed is therefore at least 90 watts per box. It is actually a little higher, if we consider the reactive current losses as well as in transformers.
  • FIG. 2 defines the block diagram of an installation according to the invention, compared with FIG. 1.
  • the structure is the same up to the low voltage circuit. Now, this one, which always passes through the indicator boxes CI1 to CI4, meets in each box a device D1 to D4, respectively. Each of these devices is mounted substantially in the center of the box. As will be seen below, it has two lamps capable of operating alternately, that is to say that one can make up for the deficiencies of the other.
  • FIGS. 3A and 3B show that, mechanically, a device D (one of the devices D1 to D4) comprises a base plate 1, on which is mounted a block of generally pyramidal shape, made of a synthetic material such as for example the two-component curing adhesive called araldite (registered trademark).
  • araldite registered trademark
  • the pyramid is doubly truncated. On one side, it is truncated at an intermediate level 21, where are provided orifices suitable for receiving the lamp bases L1 and L2, which are then mounted perpendicular to the flat face 1. At the top, the pyramid is truncated at one level upper 22, where terminals B1 and B2 appear which will be found later.
  • this column 3 Between the two lamps L1 and L2, for example on the intermediate level 21, is mounted a column 3, pluggable electrically and mechanically by studs such as 31 and 32 on the block 2.
  • this column 3 On the side of the lamp L1, this column 3 houses a photodetector 30, which is brought into contact with the illuminating part of this lamp. The mounting is preferably carried out so that this detector is very insensitive to other ambient light sources which may arise.
  • the base plate 1 includes, for example at an angle, bean-shaped fixing holes such as 11, 12, 13 and 14.
  • the lamps L1 and L2 are for example fluorescent lamps of the type with ballast and incorporated regulator, such as the lamps known in France under the name "Fairy". It turned out that a single 9 watt lamp could be enough to light a standardized airport box.
  • FIG. 4 shows the electrical diagram of a device D according to the invention.
  • the terminals B1 and B2 are terminals leading to the primary winding P of a current transformer TC, with its magnetic circuit CM.
  • This primary winding S first receives in parallel a capacitor 50. This is followed in parallel by two high-voltage clipping diodes mounted head to tail, 51 and 52.
  • this inverter I In its rest position, this inverter I closes the circuit on a lamp L1. In its working position, it closes it on the L2 lamp.
  • the lamp L1 receives in parallel a resistance R10 of high value. And it is coupled to the photodetector 30 already mentioned.
  • An auxiliary secondary winding SA provided in parallel with a surge suppressor 70, supplies a rectifier bridge 80, the outputs of which are provided in parallel with filtering produced by capacitor 91 and resistor 92.
  • the output of this is used to supply an electronic control assembly, the input of which is defined by the photodetector 30.
  • This one which is here phototransistor, has its collector connected to the positive terminal by a resistor 101, while its emitter joins the base of a transistor 102 whose emitter is grounded and whose collector joins the positive line by resistance 103.
  • a first time constant is defined on the output of transistor 102 by resistor 104 and capacitor 10.7.
  • the resistor 104 In parallel on the resistor 104 are mounted in series a diode 105 and a resistor 106, the cathode of the diode being on the side of the collector of the transistor 102.
  • the resistor 104 is of significantly higher value than the resistor 106. This allows, when the phototransistor 30 finds that the lamp L1 does not light up, this information is inhibited for a time corresponding to a time at least equal to the nominal duration of ignition of the lamp. In practice, the ignition time of a lamp of this kind being approximately 2 seconds, the time constant applied to the detection is of the order of 10 seconds for example.
  • the voltage available across the capacitor 107 rises, to be transmitted through a threshold device 108 consisting for example of a Zener diode at a Darlington power stage 110.
  • a threshold device 108 consisting for example of a Zener diode at a Darlington power stage 110.
  • This actuates via a resistor 111 a relay 120, which receives in parallel a capacitor 112.
  • the relay 120 changes the state of the switch I, at the same time as '' it closes a contact 121, which ensures the self-maintenance of the relay.
  • the tilting of the inverter has the effect of using the lamp L2, in place of the lamp L1.
  • the terminals B1 and B2 of the current transformer are supplied by an effective current of 6.6 Amperes.
  • Secondary S supplies the nominal current of the lamp used (9 watts or 18 watts in the examples concerned) at a voltage of approximately 220 volts.
  • This corresponds to a current transformer having a high transformation ratio, of the order of about 70, note that if the value of the effective primary current is varied, this value being able to be modified by about 20%, this transformation ratio will vary.
  • the power of the transformer is between 10 and 100 VA, preferably between 20 and 50 VA.
  • lamps comprising a fluorescent tube and its supply members, integrated in the same glass, while retaining satisfactory operation.
  • the invention thus makes it possible to improve the reliability of lighting the light boxes, while reducing their electrical consumption for equivalent lighting (we go from twice 45 VA to 20 VA).
  • a secondary advantage is the reduction of the power of the emergency unit necessary to supply all the caissons of an airport, when the public electrical network does not work.
  • the boxes Ci1 to CI4 equipped with the devices according to the invention are provided in a suitable number to correspond to the operating voltage of the low voltage secondary SBT of the medium voltage / low voltage transformer.
  • the device according to the invention therefore functions like those of the prior art, which is another advantage.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Claims (10)

1. Beleuchtungseinrichtung mit einem Stromwandler, dessen Sekundärwicklung wenigstens eine Lampe speist, während seine Primärwicklung mit den Primärwicklungen der Stromwandler anderer ähnlicher Beleuchtungseinrichtungen in Reihe geschaltet werden kann, um Bestandteil des Sekundärkreises eines Mittelspannungs-/Niederspannungstransformators zu sein, dessen Primärwicklung ihrerseits in eine geregelte Stromschleife geschaltet ist, dadurch gekennzeichnet, dass die Lampe als Leuchtstofflampe (L1, L2) ausgebildet ist, deren Zünd- /Regelungsorgane ebenfalls von der Sekundärwicklung (S) des Stromwandlers (TC) gespeist werden, und dass die Sekundärwicklung (S) jedes Stromwandlers mit parallelgeschalteten Amplitudenbegrenzungsgliedern (51, 52) ausgerüstet ist, die bei Ausfall der zugeordneten Lampe einen wesentlichen Teil der von dieser benötigten Nennleistung aufnehmen können, wodurch alsdann der Nennstromdurchgang zu den Primärwicklungen der anderen Stromwandler gesichert ist.
2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Begrenzungsglieder von zwei Hochspannungs-Amplitudenbegrenzerdioden (51, 52) gebildet werden, die einander entgegengesetzt in Reihe geschaltet sind.
3. Einrichtung nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass in Parallelschaltung mit der Sekundärwicklung des Stromwandlers ein zur Verwirklichung einer Überspannungsresonanz-Kennlinie geeignetes Abstimmorgan (50) vorgesehen ist.
4. Einrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die vorgenannte Überspannungsresonanz-Kennlinie (50) derart angepasst wird, dass die gelieferte Sekundärwechselspannung sehr schnell abnimmt, sobald die Sekundärlast ansteigt, wodurch die Zündung der Leuchtstofflampe beschleunigt wird, und dass der durch die Begrenzungsglieder fliessende Strom stark herabgesetzt wird, sobald die Sekundärspannung den Begrenzungswert erreicht.
5. Einrichtung nach einem der Ansprüche 3 und 4, dadurch gekennzeichnet, dass das genannte Abstimmungsorgan (50) einen Kondensator umfasst.
6. Einrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass jede Beleuchtungseinrichtung zwei Lampen (L1, L2), die wechselweise über einen Umschalter (I) mit der Sekundärwicklung (S) des Stromwandlers verbunden werden, und Schaltmittel (101, 120) umfasst, die auf das Nicht-Aufleuchten (30) einer ersten Lampe (L1) innerhalb einer ihre Zündzeit überschreitende Zeit durch Betätigung des Umschalters (I) ansprechen, um die zweite Lampe (L2) einzuschalten.
7. Einrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass sie eine mit länglichen Befestigungsöffnungen (11 bis 14) versehene Grundplatte (1) aufweist, die einen Block (2) aus übergeformtem Kunststoff trägt, der eine Zwischenebene (21) aufweist, auf der die Lampe(n) montiert ist (sind), sowie eine obere Ebene (22), aus der die Klemme (B1, B2) der Primärwicklung des Stromwandlers austreten, wobei die elektronischen Schaltkreise dieses Transformators in dem genannten Block (2) eingebettet sind.
8. Einrichtung nach Anspruch 7, in Verbindung mit Anspruch 6, dadurch gekennzeichnet, dass die Umschaltmittel einen Photoempfänger (30) umfassen, der in seiner Säule (3) untergebracht ist, welche lösbar auf den genannten Block montiert ist und den Photoempfänger merklich in Kontakt mit dem aufleuchtenden Teil der ersten Lampe bringen kann.
9. Einrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Lampe(n) (L1, L2) vom Typ mit eingebautem Vorschaltgerät und Starter ist (sind).
10. Einrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Stromwandler (TC) eine Leistung zwischen 10 und 100 VA, vorzugsweise zwischen 20 und 50 VA, besitzt.
EP19860400463 1985-03-06 1986-03-05 Beleuchtungseinrichtung, insbesondere für wasserdichten Flugplatzkasten Expired - Lifetime EP0196249B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8503313 1985-03-06
FR8503313A FR2578708B1 (fr) 1985-03-06 1985-03-06 Circuit electrique de dispositif d'eclairage, notamment pour caisson indicateur d'aeroport

Publications (2)

Publication Number Publication Date
EP0196249A1 EP0196249A1 (de) 1986-10-01
EP0196249B1 true EP0196249B1 (de) 1990-01-17

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EP19860400463 Expired - Lifetime EP0196249B1 (de) 1985-03-06 1986-03-05 Beleuchtungseinrichtung, insbesondere für wasserdichten Flugplatzkasten

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EP (1) EP0196249B1 (de)
DE (1) DE3668405D1 (de)
FR (1) FR2578708B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7768284B2 (en) 2004-02-16 2010-08-03 Infineon Technologies Ag Test apparatus for testing a semiconductor device, and method for testing the semiconductor device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2341017B (en) * 1998-08-25 2003-04-30 George Alan Limpkin Improvements in lighting
FR2812757B1 (fr) 2000-08-04 2002-12-06 Augier S A Systeme de balisage a isolation et etancheite renforcee de piste et bloc de transformateurs utilise

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2829135C2 (de) * 1978-07-03 1982-09-02 Siemens AG, 1000 Berlin und 8000 München Überwachungseinrichtung für den Lampenausfall bei einer Flugplatzbefeuerung
DE3005887A1 (de) * 1980-02-16 1981-09-03 Wilfried 2080 Pinneberg Rubach Anordnung bei elektrischen anlagen, insbesondere leuchttransparent o.dgl.
DE3121311A1 (de) * 1981-05-29 1983-01-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur ermittlung der ausfallkennlinie eines lampenkreises und schaltungsanordnung zur durchfuehrung des verfahrens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7768284B2 (en) 2004-02-16 2010-08-03 Infineon Technologies Ag Test apparatus for testing a semiconductor device, and method for testing the semiconductor device

Also Published As

Publication number Publication date
DE3668405D1 (de) 1990-02-22
FR2578708B1 (fr) 1987-03-27
FR2578708A1 (fr) 1986-09-12
EP0196249A1 (de) 1986-10-01

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