Connections and working principles of three - phase distribution transformers
Dyson
04/11/2025
Three - Phase Transformers
Connections and Working Principles of Three - Phase Distribution Transformers
Three - phase transformers are often used in underground switchrooms (or similar spaces) or as pad - mount transformers (see Figure 1). Figure 2 shows an example of a three - phase transformer.
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Research on Low - Voltage Anti - DC Current Transformer and Detection Device
1. Overview of Components and IssuesTA (low-voltage current transformer) and electric energy meters are key components of low-voltage electric energy metering. The load current of such meters is no less than 60A. Electric energy meters vary in type, model, and anti-DC performance, and are connected in series in the metering device. Due to the lack of anti-DC capability, they suffer from metering errors under DC component loads, usually caused by non-linear loads. With the increasing use of DC or
Dyson
07/16/2025
Anti - Theft Device for Low - Voltage Current Transformers
1. Innovation BackgroundWith the progress of society and economic development, the electricity demand of power users is expanding increasingly. Lawbreakers, aiming to save electricity costs and pursue high profits, gradually use high - tech methods to steal electricity, causing huge economic losses to power supply enterprises. Currently, popular electricity theft methods in the market include illegally opening the wiring cover of low - voltage transformers in electric energy metering boxes, alte
Dyson
07/16/2025
What aspects should be taken into consideration during the design of AIS voltage transformers?
I. Key Elements of Mechanical Structure DesignThe mechanical structure design of AIS voltage transformers ensures long - term stable operation. For 66 kV outdoor AIS voltage transformers (pillar - type structure):Pillar Material: Use epoxy resin casting + metal frame for mechanical strength, pollution/weather resistance. Special design needed for 66 kV (vs 35 kV & below). Dry - type insulation (porcelain/epoxy shell) requires sufficient bending/impact resistance for harsh outdoors.Heat Dissi
Dyson
07/15/2025
Analysis of Gas Concentration in High - Voltage Reactors of Large - Scale Hydroelectric Generator Sets
1.Gas Generation and Analysis Principle of High - Voltage ReactorsHigh - voltage reactors use oil and insulating paper for insulation. Normal operation may see local overheating or discharges (e.g., iron core/winding issues, inter - turn short circuits), causing insulation cracking and producing gases like hydrocarbons (methane, etc.), CO, CO2, H2). These gases reflect internal insulation status, enabling real - time monitoring.For closed oil - filled reactors, insulation aging and oil oxidation
Oliver Watts
07/11/2025
