The ECG KOKUSAI DWX-05PD combines impulse winding testing with partial discharge detection for evaluating coils, motor windings, transformers, and related wound components. It supports automated PDIV and PDEV evaluation together with impulse waveform comparison.
The ECG KOKUSAI DWX-05PD combines impulse winding testing with microwave-based partial discharge detection for evaluation of coils, windings, and insulation systems.
During impulse testing, the DWX-05PD captures the winding response waveform while a narrow-band microwave antenna detects electromagnetic waves generated by partial discharge within the test coil. This allows winding waveform evaluation and partial-discharge assessment within the same test platform.
Partial-discharge functions include automatic evaluation of partial discharge inception voltage (PDIV) and extinction voltage (PDEV), together with discharge-level and occurrence-probability evaluation. The manufacturer recommends installing the microwave antenna within 30 cm of the test object.
The DWX-05PD also supports master-waveform comparison, an 8.4-inch TFT color display, Parallel I/O, RS-232C, and an optional Ethernet interface for integration with inspection workflows.
Detects electromagnetic waves generated by partial discharge occurring within the test coil.
Uses a narrow-band microwave antenna to detect high-frequency signals associated with partial discharge.
Supports automatic evaluation of partial discharge inception voltage (PDIV) and partial discharge extinction voltage (PDEV).
Supports evaluation of partial-discharge occurrence, discharge level, and occurrence probability for insulation assessment.
Combines impulse winding waveform evaluation with partial-discharge detection for coil and winding inspection.
Provides 8-bit, 10 ns sampling at 100 MHz with 8,192-byte sampling memory for impulse-response waveform acquisition.
Evaluates test waveforms against stored master waveforms using waveform-area, difference-area, discharge-related, and other judgment parameters.
Parallel I/O and RS-232C support external control and test-data communication. Ethernet is listed by the manufacturer as an option.
Need a DWIT-platform partial-discharge tester? See the ECG KOKUSAI DWIT-05PD .
| Testing Inductance Range | 10 µH or more (recommended) |
|---|---|
| Sampling Speed | 8-bit / 10 ns (100 MHz) |
| Sampling Memory | 8,192-byte |
| Applied Voltage | 500 V to 5,000 V (100 V increments) |
| Test Input Circuit | Resistive divider (5 MΩ) |
| PD Detection | Narrow-band patch antenna for sensing partial-discharge electromagnetic waves |
| Recommended Detection Range | Within 30 cm of the test object during installation |
| Antenna Dimensions | 80 (W) × 80 (H) × 10 (D) mm |
| Antenna Cable Length | 2 m |
| Display | 8.4-inch TFT color LCD, 640 × 480 dots; waveform display range 512 × 256 dots |
| Judgment | Master waveform comparison, waveform area, waveform difference area, discharge amount, and related evaluation |
| Partial Discharge Evaluation | Automatic PDIV / PDEV testing; discharge occurrence, discharge level, and occurrence-probability evaluation |
| Master Waveform Storage | 196 types internally; up to 700 types using Compact Flash Memory |
| External Interfaces | Parallel I/O, RS-232C, printer port; Ethernet optional |
| Dimensions / Weight | 345 (W) × 185 (H) × 360 (D) mm / Approx. 12 kg |
| Operating Temperature | 0°C to 40°C |
| Power Supply | AC 100 / 115 / 220 / 240 V ±5%, 50/60 Hz, 2 A |
