Doble M4100 Power Factor/Tan-Delta Instrument

The Doble M4100 Power Factor/Tan-Delta Instrument is the industry’s trusted solution for power factor/tan-delta testing, combining advanced testing capabilities with artificial intelligence analysis software. Recognised globally for its accuracy, safety features, and comprehensive testing options, the M4100 ensures reliable and efficient performance.

Paired with the DTA (Doble Test Assistant) software, it simplifies testing and delivers precise results. To further enhance analysis, FRANK™—the First Response Analytics Knowledgebase—provides detailed recommendations and explanations, adding reliability to your testing process.

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• Power factor/tan-delta testing to evaluate insulation health.
• Capacitance testing to detect physical changes in equipment.
• HV turns ratio testing to identify winding damage or shorted turns.
• Leakage reactance testing for detecting winding deformation.
• Single-phase excitation current testing for transformer magnetising circuits.
• Capacitor bank testing to pinpoint defective components.
• Self-generates clean sine wave signals, eliminating external interference.
• Provides instant test result analysis and recommendations using FRANK™.
• Field self-calibration ensuring long-term accuracy.
• Patented Line Frequency Modulation to counter electrostatic interference.

• Simplifies complex electrical testing while maintaining accuracy.
• Provides actionable insights via advanced AI technology.
• Reduces downtime by identifying potential issues early.
• Ensures safety with dual switches, power strobes, and interlocks.
• Delivers reliable, interference-free results with patented technology.

• Transformer testing — The Doble M4100 is pivotal in assessing transformer integrity. It evaluates insulation conditions and detects winding damage or shorted turns. This testing ensures transformers operate efficiently and safely, which is crucial for maintaining reliable power distribution and preventing costly downtime in electrical systems.
• Cable fault localisation — Essential for on-site cable testing, the M4100 identifies faults and degradation in underground cables. Its precise measurements help pinpoint issues, reducing the need for extensive excavation. This capability is vital for maintaining an uninterrupted power supply and minimising repair costs in urban infrastructure.
• Gas-insulated switchgear analysis — In GIS applications, the M4100’s advanced testing features are invaluable. It assesses the insulation quality and detects defects, ensuring the switchgear’s reliability and safety. This is critical in high-voltage networks, where equipment failure can lead to significant power outages and safety hazards.
• Rotating machine inspection — The M4100 plays a key role in evaluating motors and generators. It tests insulation systems and identifies potential failures before they occur. This proactive maintenance approach helps avoid unexpected breakdowns, ensuring continuous operation in industries reliant on these machines.
• Laboratory testing of HV components — In lab environments, the M4100’s accuracy is essential for testing high-voltage components. It provides reliable data for research and development, quality control and pre-deployment testing. This ensures that only the most robust and safe electrical components are utilised in critical applications.