Medel Elektronik | Rail Potential Limiting and Monitoring Device
Adjustable Zone
50 Vdc —120Vdc
Rail Voltage Protection Limit
255 Vdc
LDC
Monitoring and Setup can be adjusted on LDC Display
Rail Potential Limiting and Monitoring Device

When the voltage specified in the standards on the RAIL reaches the dangerous level, the negative circuit must be grounded and short-circuited. It discharges the load by activating to protect it at times determined according to the standard curve.

MEDEL TVP monitors the voltage between the rail and the earth and when this DC voltage exceeds the set value, it discharges within the timing limits of EN50122 standard. Measurement and set values related to these processes can be monitored on the device LCD Dipslay. Fault and operating conditions and information that occur during operation can be sent to the central control structures via RS485 communication line and can be controlled from this centre. It can also be output in the form of relay contact information.

  • Features
  • Diagram
  • Certificates
  • Technical Drawing
Personnel Protection
Protection of Passenger Stations from Overvoltages
Equipment Protection
Protection of areas of use from hazardous voltages
Voltage and Display of Operating Current
RS 485 Communication Port
Monitoring and Setup can be adjusted on LDC Display
Rail Voltage Protection Limit
255 Vdc
Adjustable Zone
50 Vdc —120Vdc
Cutting Current
1200 A
Sealing Capacity
35 – 50 – 100 kA
Rated insulation Voltage
4.8 kV
Impact Withstand Voltage
40 kV
Insulation Class
IP 44
Programmable Independent Contact Output
2 pieces
Medel Elektronik | Rail Potential Limiting and Monitoring Device
Medel Elektronik | Rail Potential Limiting and Monitoring Device
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Control Card
Parameter Monitoring Screen
Relay1 Contact
Relay2 Contact
RS485 Communication and monitoring interface
Current Limiting Resistance
Main Current Thyristor
Auxiliary Contact
TVS Protection Module

Technical Drawing