Comprehensive Partial Discharge and Insulation Evaluation for Motor Coils
The ECG KOKUSAI PD ONE is a motor coil partial discharge and insulation evaluation system designed for industrial motors, EV/HEV motors, and other multi-terminal winding applications.
PD ONE combines AC partial discharge testing, impulse partial discharge testing, AC withstand-voltage evaluation, and flexible test-circuit switching in a single PC-controlled system.
AC + Impulse PD
Two partial-discharge test methods
PDIV / PDEV
Inception and extinction voltage evaluation
6CH + GND
Flexible test-circuit switching
5,000 V
AC and impulse test capability
A microwave patch antenna detects electromagnetic activity associated with partial discharge. Both AC and impulse test sections support PDIV and PDEV evaluation together with discharge-level and occurrence-probability judgment.
The built-in 6-channel switching section allows Hi, Low, and GND connections to be configured between phases, turns, and ground. Test conditions, judgment results, numerical data, and waveform images can be managed from the connected PC.
For broader partial-discharge test selection,
see the Partial Discharge Testing Solutions →
AC and Impulse Partial Discharge Testing
Combines AC and impulse partial-discharge evaluation within one motor-coil insulation test system.
Automatic PDIV / PDEV Evaluation
Both AC and impulse partial-discharge sections support evaluation of partial discharge inception voltage (PDIV) and extinction voltage (PDEV).
Microwave Partial Discharge Detection
A microwave patch antenna detects electromagnetic signals associated with partial discharge in the test winding.
6-Channel Test-Circuit Switching
Hi and Low connections for six terminals plus GND can be configured to support phase-to-phase, turn, and ground-related test circuits.
5,000 Vrms AC Test Capability
The AC partial-discharge section provides test voltage up to 5,000 Vrms with a rated capacity of 500 VA.
500 V to 5,000 V Impulse Testing
The impulse partial-discharge section provides a 500 V to 5,000 V test range in 100 V steps.
Discharge-Level Evaluation
Supports discharge-level and occurrence-probability judgment in addition to PDIV and PDEV measurement.
PC-Based Test Management
Test conditions can be created and stored on a PC, with judgment results, numerical data, and waveform images available for recordkeeping.
Need a standalone impulse partial discharge tester? See the ECG KOKUSAI DWIT-05PD .
EV and HEV motor coil insulation testing
Industrial motor insulation evaluation
AC partial discharge testing
Impulse partial discharge testing
PDIV and PDEV evaluation
Phase-to-phase winding evaluation
Winding-to-ground insulation testing
Multi-terminal motor coil inspection
PD ONE Specifications
| AC PD Test Voltage / Capacity | Up to 5,000 Vrms / 500 VA |
|---|---|
| AC Test Frequency | 50 / 60 Hz, configurable up to 200 Hz |
| AC Leakage Current Detection | 1 to 25 mA in 1 mA steps, or 100 mA |
| AC PD Evaluation | PDIV, PDEV, discharge level, occurrence probability, leakage-current cutoff |
| Impulse Test Voltage | 500 V to 5,000 V in 100 V steps |
| Impulse Evaluation | Area comparison, area-difference comparison, PDIV, PDEV, discharge level, occurrence probability |
| PD Detection | Microwave patch antenna |
| Circuit Switching | 6CH Hi / Low + GND configuration |
| Test Circuit Configuration | Configurable between phases, turns, ground, and other supported terminal combinations |
| Primary Power | Single-phase AC 100 / 200 / 220 V ±5%, 50/60 Hz |
| Power Consumption | 1,000 VA or less |
| Operating Environment | 15°C to 40°C, 10% to 65% RH, non-condensing |
