WITT Solutions GmbH
SMARTE Messtechnik für Gleichstrom – Spannung – Kabel – Isolation
The TVM monitors the driving voltage of DC railways using robust analog measurement technology.
The TVM traction drive voltage monitoring is usually used as a voltage monitor for catenary voltage in DC traction systems. This is necessary, for example, when measurements have to be carried out before connecting the different parts of the S-Bahn or U-Bahn.
An electrical connection of the sections may only be made if all voltage values are within a certain window.
In addition, the TVM can indicate high voltages in safety areas, e.g. at the conductor rail of a subway.
The TVM is a voltage monitor based on analog technology and therefore suitable for highest security requirements. With its specific signal filter, the device ensures that even the impulsive driving voltage of a direct current railway is evaluated correctly.
As soon as the predefined voltage values
| A VDC | Rating VDC min. | Rating VDC to | switching delay | Pulse break |
|---|---|---|---|---|
| 10 | 110 | 600 | max 5sek | about 3 seconds |
| 80 | 400 | 800 | Max 5sek | ca.3sek |
Explanation of the table:
VDC: From This voltage allows the system to perform a correct measurement
Rating: Rating areas
Switching delay: Duration in ms of the pending signal BEFORE a message is generated
Pulse pause: Time in ms until the next signal display
| Supply voltage | from catenary |
| Power consumption | switched: 1000V max. 7mA |
| humidity | 0 up to 100%, non-condensing |
| Outside temperature range | -20 up to 50 °C |
| Housing | Protection class IP 20 |
| Housing for 35mm DIN rail | |
| Dimensions in mm: | |
| Mains connection and inputs and outputs: | – screw terminals, |
| weight | No entry |
The typical applications are driving voltages with the following rated voltage:
| Nennspannung (Fahrspannung) VDC | 300 | 750 | 750 |
| Tension resistance (U max) to | 750 | 1000 | 1200 |
| Entry Resistance | & gt; 100 kOhm | & gt; 100 kOhm | & gt; 100 kOhm |
Response time: DC ca. 20 ms; AC ca. 500 ms
Repetition accuracy: ≤ 0.2% of the final value
Number of measuring channels: 1
| Anzahl | 2 |
| Technology | Relay with 2 separate Wechsler (NC / NO) |
| Switching voltage | max. 250 V |
| Schaltstrom | max. 8 A |
| Switching | max. 2000 WAC / 60 W |
| Tension Coil – Contact | max. 5000 VAC |
| Switch games at Imax | & gt; 1,000,000 |
Possible variants in dependence on the scope of function resp. Options
| LED1 | grün | ON / OFF | Sound On / OFF |
No extensions possible.
You might find the extensions you need in the digital version of this product: WB- TVM.
The following items are included in the scope of delivery:
Datenblätter
Derzeit keine Dokumente vorhanden
Datasheet
Currently no documents available
Fiches techniques
Aucun document disponible pour le moment
The device is completely analogue and therefore no digital values are available.
