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SMARTE Messtechnik für Gleichstrom – Spannung – Kabel – Isolation

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transducer TD1A01 0 – 60 mV to 4 – 20 mA

Transducer TD1A01 0 – 60 mV to 4 – 20 mA

Transducer TD1A01 0 – 60 mV to 4 – 20 mA

SKU: 272-00001 Categories: Transducer, voltage limiting device Tag: Measuring transformer
  • Description
  • Document

Description

The transducer TD1A01 from Witt Solutions GmbH enables very precise measurement of control voltages and electrically isolated currents.

The transducer is used in DC-powered vehicles as well as in stationary facilities. The voltage that drops at an auxiliary connection (shunt) is transmitted potential-free. This makes it possible to measure the “hot” side of the traction power supply. This also makes it possible to determine the available voltage in the railway motor downstream of the pantograph. The WITT TD1A01 can also measure the voltage produced by a substation.

The electronics are surrounded by a fully plastic cover. The 4 – 20 mA output is wired in such a way that 0 mA flows in the event of an error, which the following stations will detect as an error.

The voltage drop generated by the auxiliary connection is limited (temporary protection) and filtered. In the following stage, this voltage is converted into a highly proportional frequency (60 – 800 kHz) and transmitted through glass fiber, which is completely galvanically isolated. A subsequent frequency / voltage converter generates a proportional voltage, which – after a final filtering – is converted into electricity. The required auxiliary voltage is provided by two separate converters, a primary and a secondary side.

& nbsp;

Technical data of the WITT TD1A01

operating voltage

Operating temperature

24 V DC

20 -70 ° C

Transfer function
translation

Accuracy

0 – 60 mV is proportional to 4 – 20 mA

up to 1 kHz (-3dB) +/- 1% of the final value

Isolation
Protection against contact

Entrance to exit

Input to the auxiliary voltage

Output to auxiliary voltage

12 kV

8 kV

8 kV

2 kV

Document

Datenblätter

Messwandler TD1A01 Deutsch

Datasheet

Transducer TD1A01 English

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