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Oliver Watts
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Exploring the Design and Application of Photoelectric Current Transformers in GIS
1.Design and Application Example of Photoelectric Current Transformer in GISThis article takes a 126kV GIS project as a specific example to deeply explore the design ideas and practical application of photoelectric current transformers in the GIS system. Since this GIS project was officially put into operation, the power system has remained stable, with no major failures occurring, and the operation status is relatively ideal.1.1 Design and Application Ideas of Photoelectric Current TransformerI
Dyson
07/07/2025
Maintenance and Diagnostic Analysis of Current Transformers in GIS Equipment
I'm Oliver, with 8 years of experience in current transformer testing. These are all practical experiences, shared with you1 Maintenance of Current TransformersHaving been in the business of current transformer testing for 8 years, I know a thing or two about their maintenance! The maintenance of current transformers is divided into minor repairs, intermediate repairs, and major overhauls.Minor repairs mainly involve opening the cover (if necessary) and changing the oil, usually carried out once
Oliver Watts
07/07/2025
What are the possible causes of cracking failure in CT terminal blocks within GIS equipment?
Gas - insulated switchgear (GIS) , often called “SF6 combined electrical apparatus”, is widely used in power systems for its high reliability, small footprint, low noise, and low loss. It encloses high - voltage devices like circuit breakers, fast grounding switches, current transformers, and busbars in a grounded metal shell filled withSF6gas. Each device sits in a separate gas chamber with different pressures. The CT terminal block divides gas chambers, connects components, and eas
Felix Spark
07/07/2025
Development of an Outdoor Integrated Low - Voltage Current Transformer
In power grid construction, line losses reflect planning, design, and operation management. They’re key for evaluating power systems. For refined low - voltage transformer area line loss management, accurate line loss counting is critical. So, solidifying basic data, ensuring data accuracy, and proper original data collection matter for analysis. We must also optimize factors affecting collection accuracy, make preventive measures, and boost refined line loss management.1 Current Status of
Dyson
07/05/2025
What might be the future development trends of outdoor current transformers?
I'm Echo, a 12-Year Veteran in the CT Industry, Talking About What's Coming NextHi everyone, I'm Echo, and I've been working in the current transformer (CT) industry for 12 years.From learning wiring and equipment debugging with my mentor to now leading a team tackling complex on-site issues, I've witnessed many technological advancements and industry changes. Especially with outdoor current transformers, there have been significant developments, but also much room for improvement.A few days ago
Echo
07/05/2025
Ratio Trial Verification Method for Current Transformers
Fellow electric power calibration workers, you must have encountered this situation: The nameplate of an outdoor current transformer has been tormented by wind, sun, rain, and freezing, to the point where the transformation ratio is indistinguishable! Don't panic, we have a solution - use a current transformer calibrator and through the “transformation ratio trial calibration method”, we can figure out the actual transformation ratio and errors clearly. Here, taking the SHGQ - DC typ
Oliver Watts
07/05/2025
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