FI906151A0 - Circuit for monitoring the function of double filament lamps for traffic lights - Google Patents

Circuit for monitoring the function of double filament lamps for traffic lights

Info

Publication number
FI906151A0
FI906151A0 FI906151A FI906151A FI906151A0 FI 906151 A0 FI906151 A0 FI 906151A0 FI 906151 A FI906151 A FI 906151A FI 906151 A FI906151 A FI 906151A FI 906151 A0 FI906151 A0 FI 906151A0
Authority
FI
Finland
Prior art keywords
circuit
filament
signalling
monitoring
alarm
Prior art date
Application number
FI906151A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI97675C (en
FI906151A (en
FI97675B (en
Inventor
Hellmuth Fricke
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of FI906151A0 publication Critical patent/FI906151A0/en
Publication of FI906151A publication Critical patent/FI906151A/en
Application granted granted Critical
Publication of FI97675B publication Critical patent/FI97675B/en
Publication of FI97675C publication Critical patent/FI97675C/en

Links

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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/10—Circuits providing for substitution of the light source in case of its failure

Abstract

The circuit is designed such that it assumes a first switching state when a monitored signalling lamp (L) is operating correctly, and a second switching state in the event of a fault. A fault is regarded as the interruption of the supply circuit passing through the main filament (HF) when the signalling lamp is switched on and, when the main filament is intact, lack of readiness of the standby filament (NF) of this signalling lamp to switch on. An alarm (M), which is connected in series with the standby filament of the signalling lamp in a high-resistance manner, is used to emit a monitoring alarm. This alarm is short-circuited by the switching means (JH/1) of an indicator (JH) connected in series with the main filament, when the main filament circuit is broken, and is also deactivated when the standby filament circuit is broken. The circuit is particularly suitable for functional monitoring of signalling lamps in railway signalling lights. <IMAGE>
FI906151A 1989-12-14 1990-12-13 Circuit for monitoring the operation of double filament lamps for light signals FI97675C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3941327 1989-12-14
DE3941327A DE3941327A1 (en) 1989-12-14 1989-12-14 CIRCUIT FOR MONITORING THE FUNCTION OF DOUBLE-THREAD LAMPS IN LIGHT SIGNALS

Publications (4)

Publication Number Publication Date
FI906151A0 true FI906151A0 (en) 1990-12-13
FI906151A FI906151A (en) 1991-06-15
FI97675B FI97675B (en) 1996-10-15
FI97675C FI97675C (en) 1997-01-27

Family

ID=6395469

Family Applications (1)

Application Number Title Priority Date Filing Date
FI906151A FI97675C (en) 1989-12-14 1990-12-13 Circuit for monitoring the operation of double filament lamps for light signals

Country Status (6)

Country Link
EP (1) EP0432623B1 (en)
AT (1) ATE107462T1 (en)
DE (2) DE3941327A1 (en)
DK (1) DK0432623T3 (en)
ES (1) ES2056351T3 (en)
FI (1) FI97675C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19948718C2 (en) * 1999-09-30 2003-02-27 Siemens Ag Circuit for operating a luminous sign from a light signal circuit for signal lamps
CN112201537B (en) * 2020-10-12 2023-10-03 天津理工大学 AC filament conversion relay and on-line monitoring method for reliability thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1181792B (en) * 1963-06-29 1964-11-19 Pintsch Bamag Ag Monitoring circuit for main and secondary threads of incandescent lamps, especially signal lamps
DE1566901A1 (en) * 1967-03-21 1970-04-30 Licentia Gmbh Arrangement for monitoring signal lamps for thread breakage
NL178634C (en) * 1978-01-02 1986-04-16 Philips Nv DEVICE FOR DETECTING UNWANTED SIGNAL COMBINATIONS OF TWO SIGNAL LIGHTS IN TRAFFIC LIGHTS.
US4380718A (en) * 1981-05-22 1983-04-19 Kelsey-Hayes Co. Trailer marker light substitution circuit

Also Published As

Publication number Publication date
FI97675C (en) 1997-01-27
DE59006141D1 (en) 1994-07-21
ATE107462T1 (en) 1994-07-15
FI906151A (en) 1991-06-15
ES2056351T3 (en) 1994-10-01
EP0432623B1 (en) 1994-06-15
DK0432623T3 (en) 1994-10-24
FI97675B (en) 1996-10-15
DE3941327A1 (en) 1991-06-20
EP0432623A1 (en) 1991-06-19

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Legal Events

Date Code Title Description
BB Publication of examined application
MM Patent lapsed

Owner name: SIEMENS AKTIENGESELLSCHAFT