Industry News
- Mechanical Vs. Electronic VLF Testers: A Buyer's Guide To Cable Insulation Testing EquipmentIn the past, DC withstand voltage tests were widely used for on-site insulation testing of cables and rotating electrical machines, valued for their compact size and low power requirements for capacitive test samples. However, over two decades of global field practice and industry research have showIndustry News October 29, 2026
- Non-Disconnecting Inductance Measurement: A Supplementary Diagnostic for Shunt Reactor ConditionShunt reactors are critical reactive‑power compensation assets for high‑voltage transmission networks. They stabilize system voltage, absorb excess capacitive reactive power from long lines, and maintain grid operating quality. However, hidden mechanical and electrical defects such as inter‑turn shoIndustry News October 21, 2026
- Transformer Fingerprint Testing: The Four-Stage SFRA Protocol for Asset Lifecycle ManagementTransformers are the most valuable and critical equipment assets within a power grid. An unplanned outage of a large power transformer can trigger a cascading power grid disruption, resulting in millions of dollars in direct and indirect economic losses.Traditional diagnostic systems relying on insuIndustry News October 15, 2026
- Low-Frequency Excitation CT/PT Testing: Why Variable-Frequency Analyzers Replace Conventional Discrete SetupsCurrent transformers and voltage transformers are core components for metering and protection in high-voltage systems of substations and transformer factories. Transformer performance testing is a mandatory item in commissioning tests, periodic preventative maintenance, and routine factory tests. TrIndustry News September 30, 2026
- A Practical Guide To Relay Protection Testers: Core Test Items for Substation MaintenanceRelay protection serves as the primary safety barrier for modern substations. When faults including short‑circuits, overloads and ground faults occur on transmission lines, transformers and busbars, protective relays must quickly detect abnormal conditions and issue trip commands to isolate faulty sIndustry News September 23, 2026
- How To Slash Transformer Maintenance Downtime Safely: The Power of 3-Phase Testing And Auto-DemagnetizationEngineers who have worked in substations know that there is no room for negotiation regarding outage windows. For industrial users, every hour of extended outage time can easily result in tens of thousands of dollars in lost energy. Beyond the direct economic impact, the logistical pressure of reschIndustry News August 05, 2026
- AC Hipot Tester Capacity: How to Calculate kVA Matrix & Avoid OverpayingHow to select the capacity of a power frequency withstand voltage test device? This article analyzes the kVA calculation formula under the IEC/IEEE standard, provides a quick reference table for capacity selection of test objects such as 10kV to 110kV cables and transformers, and compares and analyzes the overseas 60Hz and domestic 50Hz environments to help you accurately match equipment, avoid blindly leaving margins, and truly save on procurement costs.Industry News July 30, 2026
- Circuit Breaker Test, CT Calibration & Heat Run – SLQ Series High Current InjectorHigh-current testing is no longer simply a matter of "big enough."Many people on the front lines of power commissioning hold a long-standing misconception: that as long as a high-current generator's output current value meets the standard, it can successfully complete on-site testing and pass projecIndustry News July 22, 2026
- CT/PT Testing of Modern Data Centers And New Energy Stations: How Can Low-voltage Frequency Conversion Method Solve Practical Problems on Site?Nowadays, the newly built AI computing power data center distribution rooms and integrated photovoltaic and energy storage stations generally suffer from the problem of dense equipment layout. The cabinet is packed with various protective relays and intelligent acquisition terminals, but periodic peIndustry News July 14, 2026
- Ultimate Guide To VLF Ultra-Low Frequency Withstand Voltage Testing: Principles, Standards, And Equipment SelectionInsulation withstand voltage testing is the core of preventative testing for medium and high voltage power equipment such as XLPE cables, generators, and large motors. Traditional 50Hz power frequency withstand voltage testing requires a large capacitive load, resulting in bulky equipment; while DCIndustry News July 07, 2026