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D-K Series - 25Kv, 30Kv & 40Kv - Digital Surge Tester

About the D-25K, D-30K, D-40K

The Digital Surge Tester is designed to test the coils and windings of high-voltage AC rotating machines up to 13.8kV.
It integrates an embedded industrial PC, 8-inch touchscreen display, and advanced LabVIEW-based software to store, recall, and print test reports.
With its high pulse current and energy, this tester ensures accurate fault detection in heavy-duty motors, stators, and HT coils.

Model Options

Key Features

  • Infinite model storage capability

  • Job work management for motor data reference

  • Dual feature: compare against master waveform or between two windings

  • Colour-coded waveforms for easy analysis

  • LabVIEW software to store, recall, and print waveforms & reports

  • Graphical & numerical % error analysis

  • Automatic report generation in MS Word

  • Target voltage indication based on motor ratings

Applications

  • 1φ & 3φ windings

  • LT & HT coils

  • AC & BLDC stators

  • AC traction motors

  • Transformer coils

  • Alternators

  • Solenoids & chokes

  • Newly manufactured & rewound motors

Benefits

  • Hands-free operation with footswitch

  • Highly sensitive fault detection capability

  • Test leads insulated up to 45kV rating

  • 8-inch colour touchscreen display

  • Leads energized warning indicator

  • 1φ & 3φ test select switch

  • USB printer connectivity for direct report printing

Surge Test Specifications

  • Test Voltage:

    • D-25K: 0–25,000 V

    • D-30K: 0–30,000 V

    • D-40K: 0–40,000 V

  • Pulse Current:

    • D-25K: 1600 A (Max)

    • D-30K: 2000 A (Max)

    • D-40K: 2500 A (Max)

  • Pulse Energy:

    • D-25K: 40 J

    • D-30K: 56 J

    • D-40K: 100 J

  • Capacitance: 0.125 μF

  • Impulse Rise Time: 0.1–0.2 μS (IEEE Standard)

  • Impulse Repetition Rate: 1 Hz (1 Pulse/sec)

  • Min. Test Object Inductance: 24 μH

  • Vertical Sensitivity: 1750V, 3500V, 7000V, 17500V

  • Sweep/Time Base: 4 μS – 10 mS

General Parameters

  • Display: 8-inch touchscreen colour display

  • Operating Voltage & Frequency: 230V (50/60 Hz) or 110V (60 Hz)

  • Power Consumption: 1000 W (Max)

  • Dimensions: 570 × 1050 × 660 mm (Approx.)

  • Weight: Gross 190 kg / Net 150 kg

PC Specifications

  • 8-inch touchscreen display

  • Industrial-grade Intel Dual Core CPU

  • 2 GB RAM / 240 GB SSD

  • Windows 10 / MS Office / Antivirus

  • Dust-proof & water-resistant (0–60 °C)

  • 2 USB ports, VGA port

  • Wireless keyboard & mouse

Software Indicators & Controls

  • Adjustable Volts/div & Time Base

  • Colour-coded waveform display

  • Surge test peak voltage indicator

  • Graphical & numerical % error display

  • Target voltage indicator (motor rating)

  • Test result lamp indicator

  • Save, recall, & print waveforms & reports

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