Испытания трансформаторов на коэффициент диэлектрических потерь (Tan Delta): принципы, схемы подключения, анализ результатов и решения для эксплуатации на месте
This article explains the measurement principle, GST/UST/GSTg connections, field-testing procedures, abnormal-result troubleshooting and practical solutions for different transformer-testing environments.
Что такое «Полный контрольный список по техническому обслуживанию высоковольтных автоматических выключателей SF6 и проверке точки росы»?
Maintaining high-voltage circuit breakers requires more than just mechanical checks; rigorous SF6 gas analysis is critical. A standardized maintenance checklist focusing on dew point testing, leak detection, and purity analysis ensures compliance with IEC 60480 standards.
Что такое измеритель точки росы SF6 и зачем он нужен?
Effectively managing SF6 moisture is non-negotiable for the safety and longevity of gas-insulated switchgear. An SF6 dew point meter serves as a critical early warning system, accurately measuring trace moisture to prevent the formation of highly toxic acids during arcing.
Пошаговая методика: как безопасно провести резонансное испытание кабелей из сшиченного полиэтилена (XLPE) в условиях переменного тока?
Performing an AC resonance test on XLPE cables requires careful planning and strict execution. The success of your high-voltage testing depends entirely on a correct setup and precise tuning.
What Is a Sweep Frequency Response Analyzer and Why Is It Used?
SFRA is an indispensable diagnostic tool for the modern power industry. By treating the transformer’s internal structure as a complex RLC network, it provides a highly accurate, non-intrusive “fingerprint” of the mechanical geometry.
Buyer’s Guide: How to Select the Right Tan Delta Tester for Power Transformers?
Following global standards and keeping exact test records ensures your electrical equipment runs safely for many decades.
What Are the Key Technical Specifications of an SF6 Dew Point Meter?
Selecting the right SF6 dew point meter requires prioritizing high accuracy, advanced sensor technology, and automatic temperature and pressure compensation.
How can you detect insulation degradation without powering off critical equipment?
Online partial discharge detectors let you find hidden insulation faults safely. You avoid costly power outages, detect dynamic stresses early, and protect your critical equipment from sudden failure.
What is a partial discharge detector?
A partial discharge detector is a testing device that identifies tiny electrical sparks inside high-voltage insulation. It uses sensors to capture ultrasonic waves, ground voltages, and electromagnetic signals.
VLF vs. DC Hipot Testing: Which is Safer?
VLF testing is the only safe way to test modern XLPE power cables. It stops space charge damage, follows IEEE standards, and saves your expensive electrical assets from sudden failure.
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