ES2063863T3 - ALTERNATING CURRENT LOADS SUPERVISION CIRCUIT FOR RAILWAY FACILITIES. - Google Patents
ALTERNATING CURRENT LOADS SUPERVISION CIRCUIT FOR RAILWAY FACILITIES.Info
- Publication number
- ES2063863T3 ES2063863T3 ES90111741T ES90111741T ES2063863T3 ES 2063863 T3 ES2063863 T3 ES 2063863T3 ES 90111741 T ES90111741 T ES 90111741T ES 90111741 T ES90111741 T ES 90111741T ES 2063863 T3 ES2063863 T3 ES 2063863T3
- Authority
- ES
- Spain
- Prior art keywords
- current
- cable
- feed voltage
- during
- feedline
- 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
Links
- 238000012544 monitoring process Methods 0.000 abstract 2
- 230000011664 signaling Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L7/00—Remote control of local operating means for points, signals, or track-mounted scotch-blocks
- B61L7/06—Remote control of local operating means for points, signals, or track-mounted scotch-blocks using electrical transmission
- B61L7/08—Circuitry
- B61L7/10—Circuitry for light signals, e.g. for supervision, back-signalling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Emergency Protection Circuit Devices (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
A circuit arrangement for monitoring AC loads, fed via capacitive cable feedlines, in railway signalling systems is disclosed which permits the current flow through the respective load to be reliably monitored by evaluating the current (I) fed into the cable feedline, independently of the length of the cable feedline. The current (I) flowing into the cable feedline flows through a monitoring element (G), which responds to the mean value with respect to time of the current flowing through it, only during one of the half cycles of the feed voltage (U). During the other half cycle of the feed voltage it is bypassed in a low-impedance fashion by a switch (S) controlled synchronously with the feed voltage. Since the capacitive reactive current has the mean value 0 during one half cycle of the feed voltage, the circuit arrangement detects only the real current component, which reproduces the load current, of the current fed into the cable feedline. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3920430A DE3920430A1 (en) | 1989-06-22 | 1989-06-22 | CIRCUIT ARRANGEMENT FOR MONITORING AC POWER CONSUMERS IN RAILWAY SIGNALING SYSTEMS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2063863T3 true ES2063863T3 (en) | 1995-01-16 |
Family
ID=6383315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES90111741T Expired - Lifetime ES2063863T3 (en) | 1989-06-22 | 1990-06-21 | ALTERNATING CURRENT LOADS SUPERVISION CIRCUIT FOR RAILWAY FACILITIES. |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0404143B1 (en) |
| AT (1) | ATE111405T1 (en) |
| DE (2) | DE3920430A1 (en) |
| DK (1) | DK0404143T3 (en) |
| ES (1) | ES2063863T3 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4110990A1 (en) * | 1991-04-05 | 1992-10-08 | Standard Elektrik Lorenz Ag | DEVICE FOR TESTING SIGNAL LAMPS IN RAILWAY SYSTEMS |
| EP1524167B1 (en) * | 2003-10-14 | 2010-11-03 | Siemens Schweiz AG | Method and circuit for a safe feedback in railway applications |
| DE202010013926U1 (en) | 2010-10-06 | 2012-01-11 | Bag Engineering Gmbh | Electronic ballast and lighting device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3995262A (en) * | 1975-06-25 | 1976-11-30 | Welwyn Electric Limited | Electric lamp failure indicator circuit |
| DE3140559A1 (en) * | 1981-10-13 | 1983-04-28 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Circuit arrangement for technically reliable operation of signal lights |
| DE3338490A1 (en) * | 1983-10-22 | 1985-05-02 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Circuit arrangement for monitoring the operating state of AC loads used in the external system of a signal box |
| DE3813538A1 (en) * | 1988-04-22 | 1989-11-02 | Standard Elektrik Lorenz Ag | Circuit arrangement for the monitored operation of two AC loads via a common supply line |
-
1989
- 1989-06-22 DE DE3920430A patent/DE3920430A1/en not_active Withdrawn
-
1990
- 1990-06-21 DE DE59007106T patent/DE59007106D1/en not_active Expired - Lifetime
- 1990-06-21 ES ES90111741T patent/ES2063863T3/en not_active Expired - Lifetime
- 1990-06-21 DK DK90111741.6T patent/DK0404143T3/en active
- 1990-06-21 EP EP90111741A patent/EP0404143B1/en not_active Expired - Lifetime
- 1990-06-21 AT AT90111741T patent/ATE111405T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE59007106D1 (en) | 1994-10-20 |
| ATE111405T1 (en) | 1994-09-15 |
| EP0404143B1 (en) | 1994-09-14 |
| DE3920430A1 (en) | 1991-01-03 |
| EP0404143A1 (en) | 1990-12-27 |
| DK0404143T3 (en) | 1994-10-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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