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Electrical, or other field serviceDiagnostics & Troubleshooting4HighElectrician$ implied

Unable to determine why ground fault current exceeds expected resistor-limited value in a resistance-grounded transformer system feeding VFDs.

No diagnostic tool or method to identify the source of excess ground fault current in VFD-fed systems with resistance grounding.

Severity

4High

Willingness to Pay

implied

Added

May 13, 2026

App Concept

GroundFaultAnalyzer Pro

A diagnostic tool that captures and analyzes high-frequency transients and DC bus voltage on VFD-fed systems to pinpoint the source of unexpected ground fault current. Provides real-time waveform analysis and guided troubleshooting steps, saving hours of manual probing and guesswork.

Key Features

Simultaneous voltage and current waveform capture at multiple points
VFD DC bus voltage monitoring and transient detection
Machine-learning based fault source identification (motor cable vs. DC bus)
Step-by-step guided diagnostics with report generation

Target Users: Electricians and electrical engineers troubleshooting ground faults in industrial settings with VFDs and resistance-grounded transformers

Revenue Model: $299/device (hardware) plus $29/mo software subscription for updates and advanced analytics

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