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High Voltage Transducer

VariTrans P 41000

Universal high voltage transducers. Input signals from Vin = ±60 mV up to Vin = ±100 V.

The VariTrans P 41000 isolation amplifiers have been specially conceived for measurements of bipolar voltages from millivolts to volts. They reliably isolate high potentials at the input circuit.
The isolating distances are designed to withstand permanent voltages up to 3600 V AC/DC and fast transients up to 20 kV.
Protection against electric shock is achieved through protective separation according to EN 61140 between input and output and power supply. Specially designed for current measurements using a shunt resistor.

Facts

  • Universal high voltage transducers
    for converting voltages, e.g. in shunt applications, from ±60 mV up to ±100 V to impressed ±20 mA, ±10 V or 4 ... 20 mA output signals.
  • New TransShield technology
    enables extremely compact modular housings
  • Working voltages up to 3600 V AC/DC
  • Protection against electric shock
    with protective separation up to 1800 V AC/DC according to EN 61140
  • Test voltages up to 15 kV AC
  • Excellent transmission properties
    • Gain error < 0.1 %
    • Cutoff frequency 5 kHz (low-pass filter / lower cutoff frequency on request)
    • Rise time T90 approx. 110 µs
  • Virtually no influence from common-mode voltages
    CMRR >150 dB
  • High immunity to transient interference:
    T-CMRR >115 dB
  • Tremendous flexibility provided by
    • Calibrated switching of up to 16 input/output ranges (working voltage up to 2200 V)
    • Up to 16 customer-specific measuring ranges
    • 20 V to 253 V AC/DC broad-range power supply
  • Reliable function even with unstable supply
  • No damage in the case of erroneous power connection
  • Switchable models
    minimize required device variants and save stockkeeping costs
  • Robust
    thanks to vacuum encapsulation
  • Suitable for DC railway
    systems up to 3000 V DC
  • Mechanically stable
    for operation on ships, rail vehicles and land crafts
  • 5-year warranty

The Task
In high-voltage systems, unipolar or bipolar voltage signals ranging from 60 mV to 100 V, e.g., voltages across shunt resistors, must be galvanically isolated and converted to standard ±20 mA, ±10 V, or 4 ... 20 mA output signals.

The Problems
In the case of insufficient insulation, high voltages and harsh ambient conditions may overload the galvanic isolation. This can result in false measurement values or even personal injury or damage to the equipment. These risks have to be eliminated safely and over the long term by suitably designed high-voltage transducers.

The Solution
The VariTrans P 41000 high voltage transducers have been specially conceived for measurements of bipolar voltages from millivolts to volts. They reliably isolate high potentials at the input circuit.
The isolating distances are designed to withstand permanent voltages up to 3600 V AC/DC and fast transients up to 20 kV. Protection against electric shock is achieved through protective separation according to EN 61140 between input and output and power supply.

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