Cable Identifier (non-charged identification detector)

The self-cleaning mechanism of transformer oil is typically achieved through the following methods: Oil Purifier FiltrationOil purifiers are common purification devices in transformers, filled with adsorbents such as silica gel or activated alumina. During transformer operation, convection caused by oil temperature changes drives the oil to flow downward through the purifier. Moisture, acidic substances, and oxidation byproducts in the oil are absorbed by the adsorbent, thereby maintaining oil c

Measures to Prevent H59 Oil Immersed Power Distribution Transformer from Burning OutIn power systems, H59 Oil Immersed Power Distribution Transformer play an extremely critical role. Once burned out, they can cause widespread power outages, directly or indirectly affecting the production and daily lives of a large number of electricity users. Based on the analysis of multiple transformer burnout incidents, the author believes that a considerable number of such failures could have been avoided or

1. OverloadFirst, with the improvement of people's living standards, electricity consumption has generally increased rapidly. The original H59 distribution transformers have small capacity—“a small horse pulling a big cart”—and cannot meet user demands, causing the transformers to operate under overload conditions. Second, seasonal variations and extreme weather conditions lead to peak electricity demand, further causing H59 distribution transformers to run overloaded.Due to long-term overload o

H61 Distribution Transformer Selection includes the selection of transformer capacity, model type, and installation location.1.Selection of H61 Distribution Transformer CapacityThe capacity of H61 distribution transformers should be selected based on the current conditions and development trends of the area. If the capacity is too large, it results in the “large horse pulling a small cart” phenomenon—low transformer utilization and increased no-load losses. If the capacity is too small, the tran

Grounding the secondary neutral of a control transformer is a complex topic involving multiple aspects such as electrical safety, system design, and maintenance.Reasons for Grounding the Secondary Neutral of a Control Transformer Safety considerations: Grounding provides a safe path for current to flow to earth in the event of a fault—such as insulation failure or overload—instead of passing through the human body or other conductive paths, thereby reducing the risk of electric shock. System sta

Grounding Transformer Winding ConfigurationsGrounding transformers are classified by winding connection into two types: ZNyn (zigzag) or YNd. Their neutral points can be connected to an arc suppression coil or a grounding resistor. Currently, the zigzag (Z-type) grounding transformer connected via an arc suppression coil or a low-value resistor is more commonly used.1. Z-Type Grounding TransformerZ-type grounding transformers come in both oil-immersed and dry-type insulation versions. Among them

With the Rapid Development of Smart Grids and the Integration of Renewable Energy Medium Voltage (MV) Switchgear, as the core power distribution equipment in substations, directly determines the stability of the power system through its reliability, intelligence, and space efficiency. This article delves into the key technologies, scenario-specific solutions, and practical benefits of Medium Voltage Switchgear in substations.Core Requirements for Substation ScenariosHigh Reliability Requirements

At the core of medium-voltage power distribution systems in industrial facilities, commercial complexes, and data centers, switchgear acts as a silent commander, governing the lifeline of electrical flow. Among various solutions, ​Withdrawable Switchgear​has become synonymous with reliability in modern MV systems due to its unique design philosophy. Compared to fixed switchgear, its "withdrawable" feature delivers compelling advantages, setting new benchmarks for ​operational efficiency​and ​per

Southeast Asia’s rapidly growing power demand (GDP growth >5% annually) combined with extreme climatic conditions—high temperature, humidity, and salt spray corrosion—necessitates balancing lifecycle costs with climate resilience in switchgear selection. This article analyzes the optimal cost-performance solutions between GIS and AIS.​I. GIS vs. AIS Cost Comparison Model (Southeast Asia Context)​​​1. Initial Investment Costs​2. Long-Term Operational Costs​​GIS Advantages:Ext