Information About Axle Counter,Track Structure Point & Crossing,Cable Schematics,CBTC Equipment,Overlaps,Core Plans,Earthing,ERTMS,Headway Calculation,Hot Axle Box Detectors,Interface Design,Level Crossing,Markers & boards,Bonding Plan Electrical Lockings,Route locking,Automatic Warning Systems AWS,Point Circuit,Equipment Treadle,Track Layout,Track Circuit Interrupters,Train Protection Warning System (TPWS),Slip Siding & Catch Siding.
Railway System of Electrical Control Apparatus for remote control of electrical equipment in the switching stations, known as SCADA, is located in Electrical Control Rooms. Each Electrical Control Room is continuously staffed by an Electrical Control Operator (s), who has control of the power supply to the electric traction system, and who is responsible for […]
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Railway Signalling Correlation & Correlation Waiver Presentation Purpose of Correlation (quotes from NR/L2/SIG/11201 mod A7) Correlation of signalling records and equipment and wiring on site is required to: Check the accuracy of source records prior to any design alteration; To check that records match the actual equipment and wiring at the site they represent. This means […]
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Railway Electrification in UK Prior to 1950s, direct current (DC) was only form of electrical energy used for traction purposes in UK 650 V DC Third Rail System 1. System provides nominal 650/750 V d. c. supplies to trains via a third rail mounted outside the running rails. Return path for traction current is via […]
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Signaling Design Process Thales Projects References for The Design process under which signalling system modifications shall be undertaken for JNUP project. 1. 3CU 00550 0295 PCZZA 2. 8BH 04002 5034 URZZA 3. 8BH 04002 5033 URZZA 4. 3CU 00550 0215 UNZZA 5. Bulletin B-0550-003 6. Bulletin B- 0550-006 7. 8BH 04002 5518 URZZA 8. LU Standard […]
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Railway Chairlock Circuit Controller Box Chairlock Circuit Controller Box :- As already discussed in Unit 6, the circuit controller boxes are handed and must be fitted to their correct respective Chairlock units. Here we will look at the physical contact numbering of the circuit controller boxes and their positional relationship to the point switches. Figures […]
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Railway WL Control Railway WL Control :- Contact number one on the open switch is used to control the de-energising of the WL in the same way that the AN & BR contacts are used on a set of Four Foots points. In the Normal position (Fig 5.7) the L.H. WL is locking the points. […]
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