Chroma 19501-K Partial Discharge Tester

Overview

The Chroma 19501-K Partial Discharge Tester is a precision instrument designed for testing high-voltage semiconductor components and insulation materials. It combines AC hipot testing with partial discharge (PD) detection capabilities, applying controlled voltage to detect local dielectric breakdown and verify long-term reliability under operating conditions. The instrument employs separate measurement and display units to minimize environmental noise interference, critical for detecting micro-discharge signals.

Key Features

• Built-in AC hipot test and partial discharge detection functions
• Programmable AC hipot voltage: 0.1–10 kVac
• High-precision current measurement: 0.01 μA to 300 μA with high resolution
• Partial discharge detection range: 1–2000 pC with 0.1 pC resolution in 200 pC range
• High voltage contact check (HVCC) function for safety verification
• Three-stage voltage testing capability
• Separate measurement and display units for minimal environmental noise
• Built-in signal isolation design and copper ring shielding at measurement point
• Compliance with IEC 60747-5-5 testing standards for optocouplers
• Support for IEC 60270-1 high-voltage calibration standards
• Graphical user interface with adjustable settings and cursor/trigger functions
• Multilingual interface for global operation
• USB storage for screen capture and test documentation
• Standard remote control interfaces: LAN, USB, RS232

Applications

• High-voltage semiconductor component qualification testing
• Optocoupler insulation integrity verification
• Electrical component long-term reliability assessment
• Production line quality control and batch testing
• Research and development for high-voltage materials
• Component failure analysis and diagnostics