Technology Class

Learn what creeping leakage current means in high-voltage insulation testing. Understand causes like moisture, thermal runaway, and partial discharge, how to read I-V curves, and how to troubleshoot unstable leakage current for accurate diagnostics and safer electrical equipment testing.

Learn how the RDXZ-270kVA/270kV AC Series Resonance Variable Frequency Withstand Voltage Test Device uses series resonance to provide safe, energy-efficient, and precise high-voltage testing for cables, transformers, and GIS systems.

Discover the key differences between AC cable and MC cable for industrial electrical systems. Learn how grounding methods, EMI shielding, moisture resistance, and durability impact performance in factories, substations, renewable energy projects, and automation systems.

Discover the Wrindu RDB-II Transformer Turns Ratio Tester designed for fast, accurate, and reliable transformer ratio testing. Features include three-phase testing, automatic tap changer detection, multiple protection functions, touch-screen operation, and support for various transformer types.

Learn how a protection relay tester works, its applications in substations and power systems, and the advantages of the Wrindu RDJB-1600M Microcomputer Relay Protection Tester. Compare popular relay tester models, testing functions, and key features for accurate relay protection analysis.

Learn the difference between impedance and resistance in electrical circuits. Understand how impedance works in AC systems, how resistance behaves in materials, and their roles in real applications like audio and power systems.

Learn how to perform a proper Megger insulation test on 3-phase systems. Discover safety steps, test procedures, PI/DAR analysis, result interpretation, and Wrindu insulation tester solutions for reliable electrical maintenance.

Learn the purpose of contact resistance testing, common application scenarios, and why it is essential for electrical safety. Explore Wrindu RDHL-200A and RDHL-200X loop resistance testers with high-precision micro-ohm measurement, smart data storage, and advanced protection features for circuit breakers, busbars, and cables.

Compare self-excited and separately excited generators in terms of advantages, limitations, cost, and performance. Learn which generator type offers better voltage regulation, stability, and efficiency for your application.

Learn the boiling point of oil and freezing point of oil for different types. Discover how automatic pour point testers improve accuracy in oil testing for industrial and power applications.