MICROTEST | Electronic measuring instruments

Impulse Winding Tester

MICROTEST Impulse Winding Tester is designed for testing magnetic components with both high and low inductance values. It is used for reliable insulation testing of wound components and utilizes non-destructive pulse voltage for waveform sampling and comparison. This method effectively detects insulation issues in devices such as motors, transformers, and inductors.

7750 series features a faster color display screen and offers pulse voltage outputs of 1200V/5200V/10000V. Its high-speed 200MHz/9-bit sampling technology provides various comparison modes, including Total area comparison, Differential area comparison, Corona comparison, LAPLACIAN Comparison, FLUT Comparison and COMP Comparison. The testing speed can reach up to 10 times per second, making it an excellent choice for automated production lines.

The 7703/7700 series offers pulse voltage outputs of 5000V/10000V. By analyzing the damping attenuation waveform generated by L/C resonance, it detects defects such as short circuits between coils and between layers of enameled wire in magnetic components.

Impulse Winding Tester

Hipot Tester Impulse Winding Tester


Impulse Winding Tester 7750 Series 7750-10S/5S/5H/5E/1S
Lowest Inductance (≥0.1μH) High voltage calibration programmable impulse voltage 200MHz/9bit High Impulse Test Sampling Rate Total Area Comparison Differential Area Comparison Corona Comparison LAPLACIAN Comparison Voltage Compensation Function MICROTEST 7750 Series is an advanced Impulse Winding Tester with a faster color display screen. It provides pulse voltage outputs of 1200V/5200V/10000V and utilizes high-speed sampling technology at 200MHz/9 bits. It offers various comparison modes such as total area, area difference, corona count, jitter count, second-order differentiation, and waveform comparison. With a testing speed of up to 10 times per second, it is ideal for high-speed production lines. For testing small components, the optional 7750-1S tester comes with the FX-IM0001 four-wire SMD component testing fixture. It features voltage compensation to minimize voltage errors caused by wiring and equivalent inductance, ensuring accurate quality control for products with small inductance.
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Impulse Winding Tester 7703 (5000V)
This series will be discontinued on January 1, 2025, with product services continuing for 5 more years. The replacement model is the 7750 series. 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 MICROTEST 7703 is a Impulse Winding Tester that provides pulse voltage outputs ranging from 100V to 5000V. It utilizes damping attenuation waveforms generated by L/C resonance to analyze magnetic components for defects such as short circuits between coils or between layers of winding wire. This model is specifically designed for Inverter-Transformer products and supports high-frequency harmonic/noise analysis mode. By amplifying the waveform through high-frequency resonance, it can precisely detect insulation defects caused by high-voltage coil slot leakage. The tester also offers various comparison modes, including total area comparison, area difference comparison, corona count comparison, jitter count comparison, and waveform comparison.
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Impulse Winding Tester 7713 (10000V)
This series will be discontinued on January 1, 2025, with product services continuing for 5 more years. The replacement model is the 7750 series. 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 MICROTEST 7713 is a Impulse Winding Tester that provides pulse voltage outputs ranging from 200V to 10000V. It utilizes damping attenuation waveforms generated by L/C resonance to analyze magnetic components for defects such as short circuits between coils or between layers of winding wire. This model is specifically designed for Inverter-Transformer products and supports high-frequency harmonic/noise analysis mode. By amplifying the waveform through high-frequency resonance, it can precisely detect insulation defects caused by high-voltage coil slot leakage. The tester also offers various comparison modes, including total area comparison, area difference comparison, corona count comparison, jitter count comparison, and waveform comparison. These modes help identify and detect faulty products accurately.
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Impulse Winding Tester 7700 (5000V)
This series will be discontinued on January 1, 2025, with product services continuing for 5 more years. The replacement model is the 7750 series. 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 MICROTEST 7700 Impulse Winding Tester offers pulse voltage outputs ranging from 200V to 5000V. It utilizes damping attenuation waveforms generated by L/C resonance to analyze magnetic components for defects such as short circuits between coils or between layers of winding wire. The tester provides various comparison modes, including total area comparison, area difference comparison, corona count comparison, jitter count comparison, and waveform comparison. These modes help identify and detect faulty products accurately.
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Impulse Winding Tester 7710 (10000V)
This series will be discontinued on January 1, 2025, with product services continuing for 5 more years. The replacement model is the 7750 series. 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 MICROTEST 7710 is a Impulse Winding Tester that provides pulse voltage outputs ranging from 200V to 10000V. It utilizes damping attenuation waveforms generated by L/C resonance to analyze magnetic components for defects such as short circuits between coils or between layers of winding wire. The tester offers various comparison modes, including total area comparison, area difference comparison, corona count comparison, jitter count comparison, and waveform comparison. These modes help identify and detect faulty products accurately.
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Impulse Winding Tester 7720 (5000V/8 Channel)
This series will be discontinued on January 1, 2025, with product services continuing for 5 more years. The replacement model is the 7750 series. 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 MICROTEST 7720 is a Impulse Winding Tester that provides pulse voltage outputs ranging from 100V to 5000V. It features 8 testing channels and utilizes damping attenuation waveforms generated by L/C resonance to analyze magnetic components for defects such as short circuits between coils or between layers of winding wire. The tester offers various comparison modes, including total area comparison, area difference comparison, corona count comparison, jitter count comparison, and waveform comparison. These modes help identify and detect faulty products accurately.
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Impulse Winding Tester 7759 Series 7759-10S/5S/5H/5E/1S
200MHz/ 9bits High Impulse Test Sampling Rate High Speed Test：10times/ sec Lowest Inductance ≥ 0.1μH Voltage Compensation Function Breakdown Voltage Analysis Programmable Impulse voltage USB Host: Quick access to test screenshots Built-in storage 128 sets testing waveform Six waveform analysis modes for detecting inter-layer short circuit defects in wound components. Supports 8 Test Channels New-generation MICROTEST 7759 impulse inter-turn short tester with an upgraded faster color display. It provides pulse voltage outputs of 1200V / 5200V / 10000V and utilizes 200MHz / 9-bit high-speed sampling technology, offering multiple comparison modes including total area comparison, area difference comparison, corona count comparison, jitter count comparison, second-order differentiation comparison, and waveform comparison mode. With a testing speed of up to 10 tests per second and support for 8 test channels, it is an ideal choice for automated production lines.
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