B - Operations – Transporting – 61 – L
Patent
B - Operations, Transporting
61
L
346/44, 324/58
B61L 1/02 (2006.01) B61L 1/18 (2006.01) B61L 1/20 (2006.01) B61L 23/04 (2006.01)
Patent
CA 1194120
ABSTRACT OF THE DISCLOSURE: In order to prevent the production of a false signal by a device for detecting the presence of rolling stock on a track section, when a rail is earthed or fractured, a circuit is provided for detecting unbalance of a traction current flowing through a track circuit formed by said track section. The unbalance detecting circuit is used in combination with a transmitter generating a track circuit current supplied to the track circuit and with an associated receiver. The unbalance detecting circuit has two current sensors which are connected to the ends of the rails of the track section adjacent to the receiver for producing respective signals representative of the currents flowing through said rails, this unbalance detecting circuit transmitting a track circuit signal produced by the track circuit current to the receiver only when the currents detected by the current sensors are equal or when their difference is small enough to cause no undue excitation of the receiver. The detecting device is further provided with a pole change switch connected between the transmitter generating the track circuit current and the ends of the rails associated therewith for cyclically reversing the direction of said track circuit current.
374912
Ansaldo Societa Per Azioni
Robic Robic & Associes/associates
LandOfFree
Circuit for detecting unbalance of the traction current in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Circuit for detecting unbalance of the traction current in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for detecting unbalance of the traction current in a... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1211358