High-Resolution Impulse Winding and Partial Discharge Evaluation
The ECG KOKUSAI DWIT-05PD combines high-resolution impulse winding testing with partial-discharge evaluation capabilities for detailed inspection of coils and wound components.
The DWIT platform applies an impulse voltage to a reference winding and the winding under test, then compares the resulting transient waveforms to evaluate winding characteristics and insulation-related abnormalities.
12-bit / 300 MHz
High-resolution waveform acquisition
100 V to 5,000 V
Applied-voltage range
5 µH to 1 H
Supported inductance range
PDIV Evaluation
Partial-discharge-oriented test capability
Waveform acquisition supports up to 16,384 sampling points. Judgment functions include Area, Differential Area, Flutter, Laplacian, peak-voltage stability, resonant-frequency, and logarithmic-decrement evaluation.
Partial-discharge evaluation can be supported using the manufacturer-listed PD detection circuit and microwave patch antenna. The system also provides database-based test management, a 10.1-inch WXGA touch display, Ethernet, RS-232C, USB, and external control interfaces.
For broader partial-discharge test selection,
see the Partial Discharge Testing Solutions →
12-Bit / Maximum 300 MHz Acquisition
High-resolution 12-bit ADC circuitry with sampling up to 300 MHz captures detailed impulse-response waveforms.
Up to 16,384 Sampling Points
Selectable sampling data up to 16,384 points supports detailed waveform inspection and post-test waveform enlargement.
Partial Discharge Detection Capability
The manufacturer-listed PD detection circuit uses a microwave patch antenna to detect electromagnetic-wave activity associated with partial discharge.
BDV / PDIV Test Mode
The tester includes BDV (PDIV) test functionality for voltage-based insulation and discharge evaluation.
Advanced Waveform Judgment
Supports Area, Differential Area, Flutter, Laplacian, peak-voltage stability, resonant-frequency, and logarithmic-decrement evaluation.
Database-Based Test Management
Stores master waveforms, judgment conditions, test results, waveform data, and screenshots for test-history management and analysis.
10.1-Inch WXGA Touch Display
A 10.1-inch 1280 × 800 color TFT touch display provides detailed waveform visualization and operator control.
Flexible Production Connectivity
RS-232C, Gigabit Ethernet, USB 2.0 host, external control I/O, and trigger output support integration with inspection workflows.
Do you only need high-resolution impulse winding testing? See the ECG KOKUSAI DWIT-05 .
Motor winding insulation evaluation
Coil partial-discharge evaluation
Winding impulse testing
PDIV-oriented insulation testing
Layer-short and winding-defect evaluation
High-voltage winding quality inspection
R&D waveform and discharge analysis
Production winding inspection
DWIT-05PD Specifications
| Applied Voltage / Energy | 100 V to 5,000 V / 0.12 J |
|---|---|
| Voltage Accuracy | ±5.0% |
| Applied Voltage Step | 1 V |
| Inductance Range | 5 µH to 1 H |
| Resolution / Sampling Speed | 12-bit / Maximum 300 MHz (20 steps) |
| Sampling Data | 16,384 / 8,192 / 4,096 / 2,048 / 1,024 / 512 |
| Display | 10.1-inch color TFT LCD, 1280 × 800 WXGA, touch panel |
| Test Modes | Impulse Test, BDV (PDIV) Test, Aging Test |
| Conventional Judgment | Area, Differential Area, Flutter, Laplacian |
| Additional Judgment | Peak Voltage Stability, Resonant Frequency, Logarithmic Decrement |
| Partial Discharge Judgment | Supported with manufacturer-listed partial-discharge detection option |
| PD Detection Method | Electromagnetic-wave detection using microwave patch antenna |
| Safety | Emergency stop button and interlock |
| Master Waveform Memory | 1,000 models (100 models × 10 pages) |
| External Interfaces | RS-232C, external control I/O, Gigabit Ethernet, USB 2.0 host, trigger output |
| External Storage | USB memory, SD card, SDHC card up to 32 GB |
| Operating Environment | 0°C to 40°C, up to 80% RH, non-condensing |
| Input Power | AC 100 V to 240 V, 50/60 Hz, 2 A |
| Dimensions / Weight | 342 (W) × 188 (H) × 366 (D) mm, excluding protruding parts / Approx. 9.8 kg |
