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Controls for the reclosers range from the original electromechanical systems to digital electronics with metering and SCADA functions. The ratings of reclosers run from 2.4–38 kV for load currents from 10–1200 A and fault currents from 1–16 kA. [7] [8] On a 3-phase circuit, a recloser is more beneficial than three separate fuse cutouts.
When a train has made a full brake application due to adverse event, or has lost its train air due to a defective valve (a "kicker"), or a broken air line or train separation. The train crew will normally declare that they are "in emergency" over the train radio, thus warning other trains and the dispatcher that there is a problem. [101] [102]
The driver has to repeatedly press a button after a fixed interval; if they fail to do so, the train will carry out an emergency stop. It complements the external train safety systems: PZB, LZB and ETCS. [3] The Sifa control display in the ICE 3. In Europe the Zeit-Zeit-Sifa (time-time Sifa) is common. In this system, the engine driver holds a ...
In transportation, dwell time or terminal dwell time refers to the time a vehicle such as a public transit bus or train spends at a scheduled stop without moving. [1] Typically, this time is spent boarding or deboarding passengers and baggage, but it may also be spent waiting for traffic ahead to clear, trying to merge into parallel traffic, or ...
The process whereby signallers or dispatchers can change the order or timing of trains to maximise overall train service performance in real time [citation needed] Train set A toy train with its tracks, buildings, etc. [255] Trainset A group of rolling stock that is permanently or semi-permanently coupled together to form a unified set of ...
Tram-trains are railcars or trains which run like trams (streetcars) in city streets, and on heavy rail tracks out to the suburbs or between the cities. Usually, this requires two current systems (German Zweisystemstadtbahn , Stadtbahn with two systems), both the tram voltage (600 or 750 V DC) and the heavy rail high voltage (in Germany, 15 kV AC).
A timetable can be produced dynamically, on request, for a particular journey on a particular day around a particular time (see journey planner, below), or in a timetable that gives an overview of all services, in a particular category, and is valid for a specified period. The latter could take the form of a book, leaflet, billboard, or a (set ...
A suggestion in The Times of 10 October 1853, commenting on a train collision near Portarlington station, on the Great Southern and Western Railway, on 5 October that year, called for a paper-roll recorder, keeping a log of wheel revolutions against time, to be carried in a locked box on trains, the record to be removed and stored by station masters at the destination station. [1]