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Track circuits - Siemens Mobility | Global | Siemens ...
https://www.mobility.siemens.com/global/en/portfolio/rail/automation/signaling-on-board-and-crossing-products/track-circuits.html
A proven technology for track vacancy detection. Siemens remote-fed, audio-frequency track circuits are used for accurate free/occupied status indications of the track section. Widely installed, this technology is recognized as reliable and robust by more than 170 customers. It can be installed in operation with all types of electrification systems and all railway applications …
Track Circuits - Siemens Mobility | Global | Siemens ...
https://www.mobility.siemens.com/us/en/portfolio/rail/automation/signaling-on-board-and-crossing-products/track-circuits.html
A proven technology for track vacancy detection. Siemens Mobility remote-fed, audio-frequency track circuits are used for accurate free/occupied status indications of the track section. Widely installed, this technology is recognized as reliable and robust by more than 170 customers. It can be installed in operation with all types of electrification systems and all railway applications …
Service Unit for Siemens Audio Frequency Track Circuits ...
http://www.signalconcept.com/download_produktdoc/197.pdf
Thank you for choosing the Service unit for Siemens audio frequency track circuits and axle counters SICO 2056 PEGA. You have purchased a high quality technical device used in the industrial field. We hope that all of your expectations are …
Track Circuit Systems Products - Siemens
https://assets.new.siemens.com/siemens/assets/api/uuid:8a350880-770e-442c-adcc-c0ce1de08864/version:1565810339/sect-c-track-circuits-2018-rs.pdf
SIEMENS Clearguard® SOTC Series Overlay Track Circuit modules are an adjustable length audio frequency track circuit intended primarily for obtaining release of electrically locked switches (through a normally deenergized external relay) by occupying the main track immediately ahead of the switch points.
AUDIO FREQUENCY TRACK CIRCUITS - SlideShare
https://www.slideshare.net/sspardesh/audio-frequency-track-circuits
TRACK CIRCUIT EXTRIMITY 20 Mt. +/- 0. 5 Mt. 10. SEPARATION JOINT (TUNED AREA)LENGTH 1 Milli ohm maximum per connection. 9. TRACK CONNECTION RESSISTANCE Standard Nutral Relay 50 V DC. 8. RELAY 0.8 -- 1. 8 V 4.5 -- 7.5 V 7. TRACK FEED 1. LOW POWER MODE VOLTAGES 2. HIGH POWER MODE 1500 KHz TO 2600 KHz. Approx. 11. FREQUENCY …
Audio Frequency Track Circuit | PDF | Power Supply ...
https://www.scribd.com/presentation/319723862/Audio-Frequency-Track-Circuit
FTGS (SIEMENS) 12-TYPES. FTGS-46. FTGS-917. 4.75 KHz 5.25 KHz 5.75KHz 6.25 KHz. 9.5KHz 10.5 KHz 11.5 KHz 12.5 KHz 13.5 KHz 14.5 KHz 15.5KHz 16.5 KHz. ALSTOM (DC-CODED) UM-7 SEF-FRANCE. 6-TYPES. 4-TYPES. 2100 Hz 2500 Hz 2900 Hz 3300 Hz 3700 Hz 4100 Hz. 1700 Hz 2300 Hz. 2000 Hz 2600 Hz. Stop. Next ADVANTAGES ADVANTAGES OF OF AFTC AFTC. Joint …
PSO 4000 - Siemens
https://assets.new.siemens.com/siemens/assets/api/uuid:c9dbe06e-5daf-426d-97e8-c1a03562da91/sie-bro-pso4000.pdf
All Standard Island Circuit Frequencies are Programmable with PSO 4000 2.14 kHz, 2.64 kHz, 3.24 kHz, 4.00 kHz, 4.90 kHz, 5.90 kHz, 7.10 kHz, 8.30 kHz, 10.0 kHz, 11.5 kHz, 13.2 kHz, 15.2 kHz, 17.2 kHz, 20.2 kHz Miscellaneous Frequency Data • Frequency Stability: 6 0.01% (Hz) of the selected frequency.
Railway Audio Frequency Track Circuits – Railway ...
https://www.railwaysignallingconcepts.in/railway-audio-frequency-track-circuits/
It’s a type of AC track circuit in which audio frequency signals are used instead of pure AC or DC signals. Its generally a joint less track circuit, extremity of the tracks are defined by tuned units but can also be used with IRJs. it is least prune to interference and hence can be used in ac, dc, and non electrified areas.
Condition Monitoring of Audio Frequency Track Circuits
http://www.railway-research.org/IMG/pdf/i.1.1.1.4.pdf
In TI21 jointless audio frequency track circuits, a carrier frequency f 0 is coupled into the track and detected at the receiver. In fact, the carrier frequency is modulated between f 0 – 17 Hz and f 0 + 17 Hz at a rate of 4.8 Hz as detailed in [4]. The receiver only
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