Category Technical FAQs

Learn whether electric current or voltage causes electric shock, how electricity affects the human body, safe voltage levels, and key electrical safety principles.

Learn the differences between VHF and UHF frequencies, radio spectrum classifications, frequency ranges, applications, and communication advantages.

Learn the difference between lightning rods and surge arresters, how they work, their applications in power systems, and lightning protection methods.

Learn what VAC means in electrical systems, how VAC differs from VDC, why accurate AC voltage measurement matters, and how to measure VAC safely using True RMS testing equipment.

Learn what a BMS test is, why battery management system testing is important, common BMS test procedures, equipment, standards, and best practices for EV and energy storage applications.

Learn what a cable pass through grommet is, how to choose the right size, installation methods, material options, and the best applications for cable protection and cable management.

Learn what an AC Resonance Test System is and how series resonance is used for high-voltage testing of cables, transformers, and GIS equipment. Discover working principles, key components, advantages, and industrial applications in modern power systems testing.

Learn what SFRA test is and how Sweep Frequency Response Analysis evaluates transformer winding and core integrity. Discover detectable faults, IEC standards, working principles, and why SFRA is essential for transformer condition assessment and preventive maintenance.

Learn what series resonance is in simple terms and how AC resonance test systems work in high-voltage testing. Discover the working principle, resonant frequency formula, key components, advantages, and applications in cable, transformer, and GIS insulation testing.

Learn the key differences between transformer type testing and factory acceptance testing (FAT). Understand their purpose, timing, standards, test items, and why both are essential for transformer quality, safety, and performance in substations and industrial power systems.

Learn what a dielectric test (Hipot test) is, how it works, and why it is essential for electrical insulation safety. Discover the difference between dielectric testing and Megger insulation testing, common applications, safety standards, and FAQs for transformers, cables, motors, and switchgear.

Learn what a current injection test is and how it verifies circuit breaker and relay performance. Understand primary vs secondary injection testing, trip unit verification, and how this method ensures power system protection and electrical safety.