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High Voltage Transducer

VariTrans P 29000

Compact high-voltage isolation amplifiers with safe galvanic isolation, VariPower broad-range power supply and genuine calibrated range selection.

Working voltages up to 1000 V AC/DC and test voltages up to 5.4 kV AC, maximum performance in a compact modular housing.

High-voltage VariTrans P 29000 series isolation amplifiers are available in two input versions for a variety of requirements: high voltage, mV. The devices are ideal for monitoring and controlling electrical drive systems operated with DC voltages and feature a passive output for direct connection to a supplying PLC. Input voltages from ±100 V to ±1000 V DC are galvanically isolated and provided at the output as standard 0/4 … 20 mA or 0 …. 10 V signals or as a bipolar signal in the range of -20 … 20 mA or -10 … 10 V.

Typical applications are DC current and servo drives, generators etc, as well as power supplies for welding units and inverters for solar or wind power systems. The extraordinary performance and flexibility of the isolation amplifiers supports the user in the development of the most diverse products or system solutions.

Facts

  • Universal usability input 20 mV to 1000 V
  • Working voltages up to 1000 V AC/DC
  • Protective separation according to EN 61140 – protection of the maintenance staff and subsequent devices against excessively high voltages up to 600 V AC/DC 
  • Test voltage 5.4 kV AC across input and output 
  • Excellent transmission propertie
    • Gain error 0.2 %
    • Cutoff frequency > 10 kHz
    • Response time T99 < 200 µs
    • High output power: 12 V (current output), 10 mA (voltage output)
  • High immunity to transient common-mode interferenceT-CMR >100 dB
  • Tremendous flexibility provided by calibrated range selection; reduced number of product variants minimiz-es inventory costs
  • Optional sensor adjustment with zero point potentiometer
  • Worldwide usability with VariPower broad-range power supply 20 V to 230 V AC/DC ±10 %; reliable function even with unstable supply
  • No damage in the case of erroneous power connection
  • Passive current output additional passive current output allows for connection of active PLC inputs
  • Optional sensor adjustment with zero point potentiometer
  • Worldwide usability with VariPower broad-range power supply 20 V to 230 V AC/DC ±10 %; reliable function even with unstable supply
  • No damage in the case of erroneous power connection
  • Passive current output additional passive current output allows for connection of active PLC inputs
  • Switchable inversion of the output
  • RangeLimit adjustable lower or upper limit at output; optional
  • Test jacks for measuring output current and voltage
  • Low space requirement in enclosure with only 17.5 mm wide modular housing
  • Low-cost assembly Quick mounting, convenient connection of the power supply via DIN rail bus connectors (in the case of 24 V DC supply)
  • 5-year warranty

The Task
When it comes to taking measurements on power electronics, unipolar or bipolar voltage signals ranging from 20 mV to 1000 V must be galvanically isolated and converted to standard ±20 mA, ±10 V, or 4 … 20 mA output signals.


The Problems
Room in the enclosure is limited and expensive. Therefore great value is placed on the miniaturization of automation components. And high safety requirements with regard to the protection of persons and systems must also be met.


The Solution
The VariTrans P 29000 isolator series is designed specifically to measure voltages up to 1000 V AC/DC. The test voltage is 5.4 kV AC. Protection against electric shock is achieved through protective separation according to EN 61140 between input and output and power supply up to 600 V AC/DC.
Compact automation solutions can be implemented thanks to the 17.5 mm modular housing and operation at temperatures up to 70 °C.

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