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VTH3ph and VTHR3ph 3 phase Voltage Transducers for Voltage Sensing, instantaneous or rms conversion
The VTH3ph and VTHR3ph voltage transducers convert dc or ac voltage to an isolated voltage or current loop output.
Features
- Galvanically isolated voltage inputs
- Available AC or DC input ranges 0.333V to 600V ac or dc
- Operational from 10% - 125% of range
- Outputs: 10V, 4-20mA and 4-12-20mA outputs available
- Auxiliary power input 12/24/48/110/230 Vdc or Vac. Max current draw 24Vdc 100mA max
- Fast response time <200uS (no filtering). Standard frequency range is DC-10kHz
- RS485 and Modbus of Ethernet
- interfaces transmit Vrms, Vrmsmax, Vmean, Vpk, Vpkmax, Vcf and frequency
- Certified accuracy better than <0.2% at +23°C ±5°C, traceable to NIST/NPL
- Functional temp range –20°C - 70°C
- Rated working voltage insulation 1.5kVpk, flash tested 2.5kV for 1 minute
Description
The VTH3ph and VTHR3ph voltage transducers convert dc or ac voltage to an isolated voltage or current loop output. The Available VTH3ph models cover the range from 0.333V to 600Vrms, with fast response capability, the Model VTHR3ph offers true rms conversion DC-50kHz along with Voltage Analysis. VTH3ph sensors are available in ac only or dc+ac configurations.
The instrument power input is designed to operate over a wide voltage range associated with process control and sub-station auxiliary dc supply systems. Some typical applications are voltage monitoring in PV photo-voltaic, wind turbines, ac and dc drives, process control, rail transportation. For all products, a NIST/NPL/UKAS traceable calibration certificate of conformance is available.
DC transducer applications
- Applications
- Battery Storage systems UPS
- Battery Storage systems MicroGrids
- Conventional power generation
- DC power grids
- Power transmissin and distribution
- Solar Power and PV Array
- Wind power
- Electric Vehicle testing
Product Specifications
- Available input ranges 0.333 to 600V ac or dc
- Accurate with any waveshape and operational from 10%-125% of range
- Measures Vrms, Vmean, DC comp, Vpk, Vmax-pk, Vcf (interface)
- Outputs: 0-10V or 4-20mA, special outputs available
- Interface options RS485 and Modbus
- Auxiliary power input 12/24/48/110/230V AC/DC, Max current draw 24Vdc 150mA max
- Fast response time <200uS (no filtering). Bandwidth DC-50kHz
- Certified accuracy better than <0.5% at +23°C ±5°C, traceable to NIST/NPL
- Internal gain and offset, special calibration possible
- Galvanic isolation
- Working temperature range -10°C - 50°C
- Extended temp range -20°C - 60°C
- Functional temp range –25°C - 70°C
- Rated working voltage insulation 1.5kVpk, flash tested 2.5kV for 1 minute
- Screw terminal input/output connections
- Din-rail or screw fixing
- CE Marked
- UL94V0, IEC1010 cat II, IEC348, DIN 57411
- Case IP50 (option IP54), terminals IP30 complies with IEC529
- 1 year warranty
Applications
VTH3ph / Voltage range / output / frequency / power input
VTHR3ph / Voltage range / output / ac or dc / power input
Order code examples:
VTH3ph / 110V / 4-20 / 45-65 /24Vdc
110Vdc input, 4-20mA output, 45-65Hz with 24Vac/dc aux power input
Calibrated 0-110Vdc
VTHR3ph/ 100V / 10 / ac+dc / 24Vdc
100V input, 10V output, ac+dc coupled, with 24Vdc aux power input
Calibrated 0-100Vrms
VTHR3ph / 208V / 10 / 400 / 24Vdc
208Vrms input, 0-10V output / 400Hz / 24Vdc aux power input
Calibrated 0-208Vrms at 400Hz
VTHR3ph / 50Vrms / 4-20mA / dc-100 / 24Vdc
means 0-50Vrms input, 4-20mA rms output, frequency range dc-100Hz, 24Vdc aux power input
Unless specified, the upper cut-off frequency will be 10kHz
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