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Stay updated with the latest technical guides, product announcements, and industry insights from EK Instruments.
Power Quality Analyzer Shows Negative kW? Check CT Polarity and Phase Mapping
A field troubleshooting guide for negative kW readings: verify expected power direction, wiring mode, voltage-current phase pairing and current-sensor polarity.
Read ArticleBESS Commissioning Test Equipment Checklist: Instruments, Records & Hold Points
A practical BESS commissioning equipment and evidence checklist covering insulation, low resistance, grounding, leakage, power quality, controls, hold points, performance testing and handover.
Read ArticleRCD Keeps Tripping? A Circuit-by-Circuit Leakage Troubleshooting Workflow
A field-oriented workflow for finding intermittent RCD and RCBO trips with a leakage current clamp, including conductor grouping, filters, logging, branch isolation and neutral-to-earth fault checks.
Read ArticlePower Quality Analyzer vs Power Meter, Data Logger & Oscilloscope: Which Tool Finds Which Fault?
A field-focused comparison of power quality analyzers, power meters, data loggers and oscilloscopes, with practical selection guidance for common electrical problems.
Read ArticleHow Often Should a Multimeter Be Calibrated? Risk-Based Intervals, TUR & Pass/Fail Rules
A practical guide to setting multimeter calibration intervals from measurement risk, tolerance, uncertainty, field conditions and as-found performance history.
Read ArticleGenerator Insulation Resistance Test Guide: IR, PI, DAR & Condition Trending
A field guide to generator insulation resistance testing with safe isolation, test voltage selection, IR, PI, DAR, temperature correction, phase comparison and condition trending.
Read ArticleHow to Choose a Clamp Meter: True RMS, Jaw Size, Inrush, Leakage & CAT Rating
A practical clamp meter selection guide covering AC/DC ranges, true RMS, inrush capture, leakage sensitivity, jaw size, CAT ratings, logging, calibration and field workflow.
Read ArticleEK-G668A Leakage Current Testing Guide: Baselines, Harmonics & Troubleshooting
A field-focused guide to AC leakage current measurement with the EK-G668A, covering residual conductor grouping, filtered and unfiltered true-RMS results, harmonic analysis, baseline trending, interference control, RCD troubleshooting, and predictive maintenance.
Read ArticleEK-C363A Micro-Ohm Meter Guide: 4-Wire Contact & Winding Resistance
A complete four-wire Kelvin resistance testing guide for the EK-C363A, covering lead placement, test current, thermal EMF, repeatability, circuit-breaker contacts, busbar joints, relay contacts, transformer and motor windings, temperature correction, uncertainty, and post-repair verification.
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