Tiêu chuẩn và Tính toán Thử nghiệm LTAC cho Máy biến áp
Oliver Watts
Trường dữ liệu: Kiểm tra và Thử nghiệm
China
1 Giới thiệu
Theo quy định của tiêu chuẩn quốc gia GB/T 1094.3-2017, mục đích chính của thử nghiệm chịu điện áp xoay chiều ở đầu đường dây (LTAC) cho máy biến áp là để đánh giá khả năng chịu điện介质转换失败，请稍后重试~
Đóng góp và khuyến khích tác giả!
Về chuyên gia
Oliver Watts
China
Đề xuất
Why is it difficult to increase the voltage level?
The solid-state transformer (SST), also known as a power electronic transformer (PET), uses voltage level as a key indicator of its technological maturity and application scenarios. Currently, SSTs have reached voltage levels of 10 kV and 35 kV on the medium-voltage distribution side, while on the high-voltage transmission side, they remain in the stage of laboratory research and prototype validation. The table below clearly illustrates the current status of voltage levels across different appli
Echo
11/03/2025
What Are the Handling Procedures After Transformer Gas (Buchholz) Protection Activation?
What Are the Handling Procedures After Transformer Gas (Buchholz) Protection Activation?When the transformer gas (Buchholz) protection device operates, a thorough inspection, careful analysis, and accurate judgment must be carried out immediately, followed by appropriate corrective actions.1. When the Gas Protection Alarm Signal is ActivatedUpon activation of the gas protection alarm, the transformer should be inspected immediately to determine the cause of operation. Check whether it was caused
Felix Spark
11/01/2025
Fluxgate Sensors in SST: Precision & Protection
What is SST?SST stands for Solid-State Transformer, also known as Power Electronic Transformer (PET). From the perspective of power transmission, a typical SST connects to a 10 kV AC grid on the primary side and outputs approximately 800 V DC on the secondary side. The power conversion process generally involves two stages: AC-to-DC and DC-to-DC (step-down). When the output is used for individual equipment or integrated into servers, an additional stage to step down from 800 V to 48 V is require
Echo
11/01/2025
SST Voltage Challenges: Topologies & SiC Tech
One of the core challenges of Solid-State Transformers (SST) is that the voltage rating of a single power semiconductor device is far insufficient to directly handle medium-voltage distribution networks (e.g., 10 kV). Addressing this voltage limitation does not rely on a single technology, but rather a "combination approach." The main strategies can be categorized into two types: "internal" (through device-level technological and material innovation) and "external collaboration" (through circuit
Echo
11/01/2025
