Energy and traction control solutions

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Full high voltage sensors The MSAV sensors provide a proven reliable, accurate and cost effective solution for rolling stock. Based on its capacity of multi-voltage and current measurements, MSAV products can be used as a simple solution for energy measurement implementation on existing rolling stock as well as traction control functionalities for new-built trains (e.g. safety catenary type detection, traction synchronisation protection of the main transformer by overcurrent detection etc.) With the validated, smart and independent functional integration of the energy measurement and traction control functions, the MSAV solution allows space and weight saving for new-built rolling stock by reducing the amount of equipment needed. Yesterday: several sensors for same AC or DC catenary measurements DC AC DC energy measurement DC energy measurement AC over current & short circuit Traction system AC energy measurement Catenary type detection Analog signal for traction measurement Voltage sensors Current sensors Today: just MSAV25000 and MSAV-DC for all high voltage measurements MSAV-DC MSAV25000 Traction system AC short circuit AC/DC energy measurement Catenary type detection Analog signal for traction AC overcurrent Energy measurement function Traction management function 8 www.morssmitt.com
Traction control functions Multi-voltage AC/DC traction units need high voltage measurement for several train functions. Mandatory for energy measurement, they are also used on several applications for traction control, protection an monitoring, which is usually done by several sensors measuring the same current and voltage value. Catenary detection Over current detection logic function (QLM relay) This function recognises the AC or DC catenary type and detects the voltage presence with This function is used to protect the main transformer by detecting limited current threshold. Its high level of safety for traction management and configuration. Dedicated 25 kV 50 Hz, 15 kV 16 Hz logic 2/3 output and is DC use logic by the outputs train management are activated system with as relevant input to catenary. open the main circuit breaker and stop the current flow. Signal for traction Short circuit inverter detection synchronisation (sensing device) This function triggers the traction inverter synchronisation, based on one or more analog voltage or current outputs proportional to the AC catenary voltage. This function is used to protect the main transformer by detecting a short circuit current establishment. Its dynamic analog output proportional to the collecting current is analysed by Overcurrent the train detection management logic to open function the main (QLM circuit breaker relay) and stop the current flow This function protects Harmonics the detection main transformer by detecting the limited current threshold. Its logic output is used by the train management system as an input to open the main circuit breaker and to stop This the function current is flow. used to detect perturbation rejected by the train to the catenary to protect signalling system. Its dynamic outputs proportional to the voltage output is analysed by the train Short circuit management detection to detect harmonics level. This function protects the main transformer by detecting short circuit current establishment. Its dynamic analog output proportional to the collecting current is analysed by the train management Also system with both to MSAV25000 open the main and MSAV-DC, circuit breaker additional and outputs to stop could the be current included flow. for external signal processing functionalities e.g. by TCMS Harmonics detection Additional outputs This function detects perturbation rejected by the train to the catenary to protect the signalling system. Its Analog dynamic outputs output proportional proportional to catenary to the current voltage and voltage output measurement is analysed could by the be train added for management other system customer to functions detect upon harmonics request. levels. MSAV-25000 MSAV-DC Train functions Catenary detection Synchronisation Signal Over current detection Short circuit detection Analog output On-board (Traction Unit) On-ground For both MSAV25000 and MSAV-DC sensors, additional outputs can be included for external signal processing functionalities e.g. by TCMS. Additional outputs Analog outputs proportional to catenary current and voltage measurement can be added for other customer functions upon request. 9 www.morssmitt.com
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Page 12 and 13: Overview MSAV25000 Functions • AC
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Page 16 and 17: References Selected by major operat
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