Impulse Winding Tester

7703 is a 2-channel 5KV impulse winding tester and able to measure inductance down to 0.5uH as well as magnify high-frequency harmonics to prevent shorts between the layers of windings. Mild corona occurring between coils would create harmonics with small amplitude and high frequency (>10MHz) which cannot be detected by a regular impulse winding tester that can only observe mild amplitude without actually identifying the fault. MICROTEST 7703 deploys “High-frequency harmonics analysis HARM “technique to magnify high-frequency harmonics then display them on screen then identify each mild discharge between layers and ensure the quality of each component coil.
7703 Impulse Winding Tester
  • Lowest Inductance (0.5uH)
  • HARM analysis / HFLT analysis
  • High voltage calibration
  • programmable impulse voltage
  • Built-in storage 200 sets testing waveform
  • Total area comparison
  • Differential area comparison
  • Wave comparison
  • Flat and Corona
  • Support RS-232, remote and printer interfaces
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7713 Impulse Winding Tester
  • Lowest Inductance (0.5uH)
  • HARM analysis / HFLT analysis
  • High voltage calibration
  • programmable impulse voltage
  • Built-in storage 200 sets testing waveform
  • Total area comparison
  • Differential area comparison
  • Wave comparison
  • Flat and Corona
  • Support RS-232, remote and printer interfaces
  • Key lock function to prevent operators from accidentally touching the keys
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7700 Impulse Winding Tester
  • High voltage calibration
  • programmable impulse voltage
  • Built-in storage 200 sets testing waveform
  • Total area comparison
  • Differential area comparison
  • Wave comparison
  • Flat and Corona
  • Support RS-232, remote and printer interfaces
  • Key lock function to prevent operators from accidentally touching the keys
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7710 Impulse Winding Tester
  • Lowest Inductance (100uH)
  • High voltage calibration
  • programmable impulse voltage
  • Built-in storage 200 sets testing waveform
  • Total area comparison
  • Differential area comparison
  • Wave comparison
  • Flat and Corona
  • Support RS-232, remote and printer interfaces
  • Key lock function to prevent operators from accidentally touching the keys
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7720 Impulse Winding Tester
  • Lowest Inductance (50uH)
  • 8 Channels
  • High voltage calibration
  • programmable impulse voltage
  • Built-in storage 200 sets testing waveform
  • Total area comparison
  • Differential area comparison
  • Wave comparison
  • Flat and Corona
  • Support RS-232, remote and printer interfaces
  • Key lock function to prevent operators from accidentally touching the keys
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