Megger TDS 40-P Cable Testing and Diagnostics System – 40 kV

Megger TDS 40-P  Combination system for cable testing and cable diagnosis

The Megger TDS 40-P is a high-performance cable testing and diagnostics system designed for medium- and high-voltage power cables. Combining Very Low Frequency (VLF) cosine-rectangular and Damped AC (DAC) technologies in a single system, it ensures precise fault detection, sheath testing, and advanced cable diagnostics in the field.

The TDS 40-P provides up to 40 kV RMS VLF and 40 kVpeak DAC output, with leakage current measurement down to 10 µA resolution, making it ideal for condition assessment and predictive maintenance. Sheath fault pinpointing at 3–10 kV with multiple pulse ratios (1:3 / 1:5 / 1:9) ensures accurate location of insulation defects.

With integrated safety devices such as breakdown detection, automatic discharge, and earth loop monitoring, the TDS 40-P is engineered for both safety and reliability. Reporting is simplified with automatic result storage and evaluation software, while optional PD detection (PDS 60) enables precise partial discharge analysis for advanced diagnostics.

The system is rugged, built for harsh environments, and designed to help utilities and service providers ensure cable reliability, reduce outages, and extend asset life.

Megger TDS 40-P  Key Features

• 40 kV RMS VLF, 40 kVpeak DAC, ±40 kV DC output

• Output current up to 7 mA, leakage current measurement with 10 µA resolution

• Testable cable capacitance: 2.4 µF basic, 4.8 µF plus version at 0.1 Hz

• Sheath testing and pinpointing (3–10 kV with multiple pulse ratios)

• Integrated safety – breakdown detection, controlled discharge, earth loop monitoring

• Advanced diagnostics – DAC technology, optional PD detector PDS 60

• User-friendly software with automatic reporting and cable database

• Rugged and portable two-unit system, IP20 rated

• Ideal for utilities, service providers, and high-voltage contractors