August 26, 2026During the preventive testing of substations and high-voltage electrical equipment, insulation deterioration is a major cause of main transformer trips,…
August 24, 2026In the operation and maintenance of modern power systems and substation secondary circuits, relay protection devices act as the last line…
July 31, 2026In power grid construction, industrial facility maintenance, and electrical contracting, high-voltage dielectric strength testing on medium and high-voltage cables and…
July 28, 2026In routine high-voltage substation commissioning and power system maintenance, on-site hipot testing of newly laid medium and high-voltage power cables…
July 23, 2026Instrument Transformers: Including Current Transformers (CT) and Voltage Transformers (PT/VT), they proportionally reduce dangerously high voltages and massive currents to standard,…
July 17, 2026I. Introduction: Pain Points and Challenges in On-site Testing In substation commissioning and power system maintenance, ensuring that circuit breakers…
July 10, 2026I. Introduction: The Ignored “Zero-Point” Drift In the condition monitoring of power transformers, the acid value is a core indicator…
June 29, 2026Transformers are essential core assets in any power grid. Inside them, the insulating oil not only provides crucial electrical insulation but…
June 17, 2026For many field maintenance personnel, laboratory procurement staff, and oil analysis technicians, evaluating the aging condition of transformer insulating oil…
June 3, 2026For many field maintenance personnel, laboratory buyers, and oil testing technicians, evaluating the health of industrial or insulating oils often…
