RAILWAY OPERATIONSGENERATING AND ENSURINGA FAULT-FREE POWER SUPPLYRolling stockRailroad power lineThe local power utility provides AC power to the railway company.This can range from 10 kV to 350 kV.How is the traction current generated? Traction current is generated in a variety of ways. The railroads already use as much electricity from renewable sources as possible – in some countries already around 60 percent at present. For example, Bavaria‘s hydroelectric plants at Donau, Isar and Walchensee lake have been supply-ing environmentally friendly traction current for almost 100 years. Modern electric vehicles also recycle the electricity released during braking and feed it back into the overhead line.Cable infrastructureMAINTENANCE, TESTING, DIAGNOSTICS, FAULT LOCATIONONE STOP SHOPMFM10 & ESG NT2DC cable sheath test and sheath fault pinpointing unitSTX40Portable fault location unit with 7 different techno- logies built-indigiPHONE+2 NTRX setFault pinpointing and line locationEZ-THUMP SERIESUltra-compact (35 kg) battery / AC operated and fully integrated fault locating system,1.5/3, 4 or 12 kVGEOLUX GL 660Earth fault locator for supply systems, isolated control and signalling cableBaker ADX All-in-one automated motor health analyser up to 15 kV for motor winding, coil, assembled motor, traction motor and generator testingVLF Sinus 62Commissioning testing and partial discharge diagnostics of medium voltage cablesTraction substationBALTO COMPACT 4000 DC high current circuit breaker tester up to 4,000 ABALTO MODULAR DC high current circuit breaker tester up to 40,000 AMIT152515 kV DC insulationresistance tester up to 30 TΩEGIL200 Easy-to-use circuit breaker analyserDLRO100Digital low resistance ohm- meterOTS/OTD SERIESFully automatic oil testersfor accurate dielectric break-down & tan delta tests on mineral, ester and silicone insulatingliquidsDC traction substation (yard)Transformation from AC (e.g. 70 kV) to DC (e.g. 1,500 V) for railroad overhead lineTransformerRectifierCircuit breaker / Protective relayTraction inverterMain rectifierTraction motorsTraction motorsTraction transformerBatteryAuxiliaryinverterBreaking resistorRolling stockDC electrified trains run on 600 V, 750 V, 1,500 V or 3,000 V. They use often overhead lines or third rail contact systems. AC electrified trains run on 15 kV AC or 25 kV AC using overhead lines.MTR105 Industrial multi- functional motor and generator testerCircuit breakerDC cable in cable ductsMIT400/21 kV insulation resistance and continuity testerAC cableCentrally controlled test vans for cable infrastructure and transformer / substationCables for axle counters, balises and light signalsRailroad operating assetsTRAXMultifunctional transformer and substation test systemMOM2Hand-held 200 A micro-ohmmeterThe details herein are for informational purposes only and constitute no pledge and no legally binding declaration.MVCT Voltage and current transformer analyserDLRO10HDX10 A digital lowresistance ohmmeterTORKEL900Battery discharge test systemSVERKER 9003-phase relay and substation test unitMegger is happy to assist! V.01c
