top of page

D-KHR Series - 25Kv, 30Kv & 40Kv - Digital Surge Teste

About the D-25KHR, D-30KHR & D-40KHR

The Digital Surge Tester is specifically designed for testing the coils and windings of high-voltage AC rotating machines up to 13.8KV.
It integrates Surge Testing, DC Hi-Pot Testing, and Resistance Testing into one unit.
Equipped with an embedded industrial PC, 8-inch touchscreen display, and software for storing, recalling, and printing test reports, this system provides high precision and reliability for both production and maintenance environments.

Model Options

Key Features

  • Infinite model storage capability

  • Dual feature: store & compare against master waveform OR compare between two windings simultaneously

  • Colour-coded waveform display for enhanced fault analysis

  • LabVIEW-based software for surge test storage, printing, and reporting

  • Graphical & numerical % error analysis

  • Automatic MS Word report generation

  • Job work management area for motor data reference

  • Target voltage indication based on motor rating

Applications

  • Stators of motors & generators

  • HT coils of motors & generators

  • Testing newly manufactured and rewound machines

  • Predictive maintenance of high-voltage rotating machines

Benefits

  • Zero start lock for operator safety

  • Hands-free operation with footswitch

  • Highly sensitive fault detection capability

  • Test leads insulated up to 80KV

  • 8-inch touchscreen colour display

  • Leads energized warning indicator

  • USB printer support for direct report printouts

Surge Test Specifications

  • Test Voltage:

    • D-25KHR: 0–25,000 V

    • D-30KHR: 0–30,000 V

    • D-40KHR: 0–40,000 V

  • Pulse Current: Up to 1000 A (model-dependent)

  • Pulse Energy: Up to 56.25 J (model-dependent)

  • Capacitance: 0.05 μF/channel

  • Impulse Rise Time: 0.1–0.2 μS (IEEE 522 Standard)

  • Impulse Repetition Rate: 5 Hz (5 pulses/sec)

  • Min. Test Object Inductance: 24 μH

  • Vertical Sensitivity: 500V, 1000V, 2000V, 5000V

  • Sweep/Time Base: 4 μS – 10 mS

DC Hi-Pot Test

  • Voltage Ranges: Matches surge voltage range (25kV / 30kV / 40kV)

  • Trip Leakage Current Limit: 2000 μA

Resistance Test (4-Wire Kelvin Measurement)

  • Range: 0.001 Ω – 60.000 Ω

General Parameters

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

  • Power Consumption: 400 W (Max)

  • Dimensions: 435 × 250 × 540 mm (Approx.)

  • Weight: Gross 42 kg / Net 30 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

bottom of page