Brochure Protection components
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MorsSmitt Railway Technology Protection components Protection relays • Hall effect sensors

Mors Smitt Railway Technology Protection components

Railway protection In the international railway sector the main focus of performance, reliability & priority is given to the protection of rolling stock electrical equipment and infrastructure electrical installations ensuring no compromises for the safety of passengers. Harsh environments such as extreme operating temperature, damp heat, vibration and shocks, fire and smoke standards, critical and safe operation of power equipment, braking and electrical distribution require high quality standard electrical protection devices. Protection relays Mors Smitt maintenance and supply free...

Protection relays Voltage and current protection relays Principle With over 20 years experience in measurement for railway equipment, Mors Smitt has designed and manufactured detection and protection relays for railway onboard and trackside applications of currents, voltages and differential currents monitoring. PRA (current protection relays) and PRV (voltage protection relays) require no auxiliary power supply and provide commonly 1N/O +1N/C output relay contact. Mors Smitt protection relays operate on an electromechanical magnetic circuit principle. Primary current or voltage create in...

Product range PRV - Voltage protection relays Onboard & trackside control cabinet mounting Functions The relays provide under, over, interval, differential voltage and current monitoring for the following applications: • Catenary voltage detection. • Overload, second side transformer short-circuit detection. • Battery load shedding and charging current monitoring. • 3 Phase motor pump and fan protection against phase loss, unbalance. • Current monitoring in magnetic brake. • Ground fault detection in the traction power equipment. High galvanic insulation PRA and PRV relays withstand high...

Common technical characteristics Example: Onboard schematic of Mors Smitt protection relays in a self propelled car AC overhead line Maximum current detection Circuit breaker Ground fault detection differential relay Main transformer Current measuring Accuracy Dielectric strength Monitoring functions Min. voltage Max. voltage Interval voltage Differential voltage Mounting horizontal / vertical Current transformer Operating temperature 3-phase unbalance for pumps & fans insulation fault detection Voltage detection Potential transformer 25 kV Catenary voltage detection 3-phase AC output...

Hall effect sensors Closed loop voltage and current sensors Principle With over 20 years experience in measurement for railway equipment, Mors Smitt has developed a new range of sensors based on closed loop hall effect technology. They allow for the measurement of all current waveforms, with high galvanic insulation between the primary and secondary circuits. The hall effect probe placed in the air gap of the magnetic circuit provide a voltage proportional to this flux. The electronic circuit amplify the signal from the primary current Ip or voltage Up flowing across the sensor and...

Product range MSV Electronic voltage sensors MSV100 - up to 950 VAC/DC MSV200 - up to 5000 VAC/DC Modularity Mors Smitt sensors are designed to be mounted on chassis or directly on copper bus bar, and offer mechanical and electrical form fit solutions to replace other sensors. MSA Hall effect current sensors MSA100 - up to 100 A MSA200 - up to 200 A MSA300 - up to 300 A MSA500 - up to 500 A MSA1000 - up to 1000 A MSA2000 - up to 2000 A Position of connections can be placed on eight different positions Choice of connection Mors Smitt offers a wide range of configuration and connection...

Common technical characteristics 1 other outputs on request 2 other terminals on request /(%Mors Smitt Application example Main inverter Main Transformer ^Q^j Current transducers & Voltage transducers • Secondary transformer overload of shortcircuit detection. • DC linkform ground fault and overload. • Motor overload. • Catenary voltage. • Secondary transformer for sufficient traction power. • DC link volrage to protect power • Phase loss or unbalanced to protect ^MITT" www.morssmitt.com /cyMors Smitt

Mors Smitt Railway Technology Protection components

SALES OFFICES FRANCE Mors Smitt France SAS Tour Rosny 2, Avenue du Genéral de Gaulle, F - 93118 Rosny-sous-Bois Cedex, France T +33 (0) 1 4812 1440 F +33 (0) 1 4855 9001 E sales@msrelais.com HONG KONG Mors Smitt Asia Ltd. # 807, Billion Trade Centre, 31 Hung To Road Kwun Tong, Kowloon, Hong Kong SAR T +852 2343 5555 F +852 2343 6555 E info@morssmitt.hk THE NETHERLANDS Mors Smitt B.V. Vrieslantlaan 6 3526 AA Utrecht, The Netherlands T +31 (0)30 288 1311 F +31 (0)30 289 8816 E sales@nieaf-smitt.nl UNITED KINGDOM Mors Smitt UK Ltd. Doulton Road, Cradley Heath West Midlands, B64 5 QB, UK T +44...