HENZ3-HR electronic transformer calibrator kernel, has Dual CPU architecture, 24Bit AD chip and 512 times over-sampling techniques greatly expand the bandwidth, to improve the measurement accuracy. At the same time, the use of multi-gear automatic switching and FIR filter to improve the dynamic range and signal-to-noise ratio. Use the Labview development of management software, beautiful interface, easy to use. Power and sample input to take a large number of electromagnetic compatibility measures, to be able to adapt to the complex field test environment. With portable design, convenient laboratory and field testing.

HENZ3-HR type electronic transformer digital output calibration system consists of: 1) a standard transformer 2) standard signal conversion apparatus, 3) standard A / D converter, 4) synchronizing signal generating means, 5) error calculating unit composition. HENZ3-HR-type electronic transformer calibrator instrument itself has 2) to 5) function, it also has analog output calibration function is a test electronic transformer digital output and analog output error Integrated Tester. Automatic tests or calibration equipment.

Apparatus uses the operation environmental conditions:

       This system unit to meet and dedicated to the voltage level of the digital (optoelectronic, electronic) transformer voltage (current) test detection and test verification tasks.

1. Altitude not exceed 1500m.

2. Ambient temperature: -15 ~ +55 ℃.

3. Air relative humidity: ≤ 90%.

4. Use Location: indoor / field use, removable.

5. Must have a reliable ground point grounding resistance <1Ω.

6. Working power: AC 220V ± 10%, about 800VA, as the actual sine wave supply

    voltage waveform.

7. Power frequency: 50/60 Hz.

8. No conductive dust, no fire and explosion hazard exists does not corrode metal and

    insulation-containing gas.

Main Usage:

        Meet IEC61850 the (-9-1 -9-2-9-2LE have been added) standard electronic transformers verify; electronic check electronic transformer polarity and delay; small signal output transformer check; parity of the merger of the small-signal input unit; 0.05 0 ~ 7V output two precision voltage signal, without l large voltage and high current can be; merger of small signal input unit school experience (extended precision standard source module); able to output a digital signal source (FT3 format), do not need to verify liter large voltage and high current can support the FT3 input merged unit. (Extended digital signal source module); electronic transformer output FT3 check (Extended FT3 conversion module); to traditional transformer parity (the extended analog signal conversion module).

Main features:

       HENZ3-HR electronic transformer calibrator for electronic transformer to meet IEC61850 (-9-1, -9-2,-9-2LE) standard output checksum. Check project include: the ratio difference, phase difference, delay, polarity. At the same time small signal input terminals, electronic transformer small signal output part as well as the merger of the small-signal input unit check.

Main functions:

1. Using the traditional transformer calibrating device (BHE type) and Agilent 3458A Digital Multimeter

    value transfer.

2. Use the built-in GPS or high stability the crystal output pulse synchronization signal.

3. IEC61850 (-9-1, -9-2,-9-2LE) protocol packets full frame resolution automatic analysis ASDU data,

    Sampling points, all channel waveform diagram, no need to get caught you can visually view all

     channel data.

4. ST / SC dual fiber Ethernet interfaces and dual RJ45 Ethernet interface, improve reliability, and

    convenient access interface electronic transformer.

5. order quasi-synchronization algorithm makes non-synchronous sampling algorithm error is

    approaching zero.

6. 24Bit AD chip and 512 times oversampling technique, greatly expand the bandwidth to improve the

    accuracy.

7 multi-gear automatic switching and FIR filter to improve the dynamic range and reduce the signal-

   to-noise ratio.

8. Real-time display of the waveform, frequency, amplitude, phase, and other data to facilitate

    comprehensive analysis of transformer performance.

9. with IPC, 800 * 600 touch screen. More convenient operation.

10. with a powerful, easy operating software can be run on industrial computer or laptop

11. Statistical ratio difference and phase difference between the mean, worse, extrema, multiple error

      data, a comprehensive test of the stability and linearity of the electronic transformer.

12. Multiple harmonics analysis and electronic transformer harmonic accuracy check.

13. throughout the testing process. Recording and playback.

14. drop-frame test, real-time statistics of dropped frames.