Przekaźnikowe urządzenia SRK typu E - cz. 1 - Przekaźniki S, U i Zw

Relay-based railway traffic control devices of the "E" system - Signal, locking, and release relays. Part 2 (next):    • Przekaźnikowe urządzenia SRK typu E - cz. ...   System E has three main groups of relays in its basic interdependency layer, which will be discussed here: Signal Relays "S" - Checking the fulfillment of all dependencies necessary for the implementation of a given route. Lock Relays "U" - Recording the fact that a given route has been locked. Lock Relays "Zw" - Required for implementing the algorithm for releasing a locked route by moving rolling stock. However, in this material, I will focus on the principle of operation of these relays; any unusual cases or details of their circuit design will be omitted. NOTE! This video is intended solely to promote interest, especially among current or future enthusiasts of classic "computerless" railway traffic control technology. THIS FILM IS A HOBBYIST AND AMATEUR IN NATURE AND THEREFORE MAY NOT BE USED FOR ANY COMMERCIAL, PROFESSIONAL, TRAINING, ETC. PURPOSES. THIS FILM MAY NOT BE USED AS A SOURCE OF KNOWLEDGE FOR ACTIVITIES RELATED TO THE DESIGN, MAINTENANCE, OR OPERATION OF ACTUAL EQUIPMENT RELATED TO RAILWAY TRAFFIC! 00:00 - Prologue 01:39 - Signal Relays 04:11 - Restraining Relays 06:32 - Intermission 07:17 - Releasing Relays 10:18 - Older and Newer U/Zw Circuits 10:42 - Kn, Jt, Jz Relays 11:32 - Kn Contacts and Grouped Waveforms 12:11 - Epilogue