在工业高压配电系统中，高压互感器（High Voltage Current Transformer, HV CT）的型号区别主要基于：电压等级、结构类型、安装方式、精度等级、绝缘材料等因素。以下是详细的分类和型号区别说明，供您参考：1. 按电压等级分类互感器以及应用场景工业高压配电系统常见的电压等级包括 10kV、35kV、66kV、110kV、220kV等，不同电压等级对应不同的互感器型号：- 10kV 高压互感器（如LZZBJ9-10）：适用于工厂配电、中小型变电站。  - 35kV 高压互感器（如LZZBW-35）：用于中型工业配电、区域电网。  - 66kV/110kV 高压互感器（如 LVQB-110）：适用于大型工业用电、发电厂并网。  - 220kV 及以上（如 TYD-220）：主要用于超高压输电系统。   2. 按互感器结构类型分类及适用领域（1）干式（环氧树脂浇注式）-型号示例：LZZB、LZZBJ、AS12  - 特色： l   - 无油设计，免维护，防火防爆。    - 适用于 10kV~35kV 配电柜、开关柜。    - 常见于工厂、商业建筑、数据中心  （2）油浸式- 型号示例：JDJ、JDZ、JDZX  - 特点：    - 采用变压器油绝缘，散热性好，适用于 35kV~220kV。    - 多用于 户外变电站、发电厂。  （3）SF6气体绝缘（4）- 型号示例：LVQB、GIS-CT  - 特点：    - 采用 六氟化硫（SF6）绝缘，体积小，适用于 66kV~550kV。    - 主要用于 GIS（气体绝缘开关设备）。  （5）电子式（光学互感器）（6）型号示例：ROG-CT、EVT  - 特点：    - 无铁芯，采用 ：光纤传感技术，适用于智能电网（数字化变电站）。    - 精度高（0.2S级），抗电磁干扰强。  3. 按精度等级分类及适用领域不同应用场景对精度要求不同，常见等级：- 0.1级 / 0.2级（电能计量，如电表）  - 0.5级（一般工业测量）  - 1级 / 3级（继电保护，如短路检测）  - 5P / 10P（保护级，如过流保护）  4. 按绝缘材料分类| 绝缘类型 | 型号示例 | 特点 || 环氧树脂 | LZZB、AS12 | 防潮、阻燃，适合户内 || 硅橡胶 | LZZBW | 耐紫外线，适合户外 || 陶瓷绝缘 | JDZX | 耐高温，用于特殊环境 || 复合绝缘 | LVQB | SF6+环氧树脂，用于GIS |5. 工业应用选型指南| 应用场景 | 推荐型号 | 关键参数 || 工厂10kV配电 | LZZBJ9-10 | 0.5级，环氧树脂浇注 || 户外35kV变电站 | LZZBW-35 | IP65防护，硅橡胶外壳 || 发电厂110kV保护 | LVQB-110 | 5P20级，SF6绝缘 || 智能电网数字化站 | EVT-220 | 电子式，0.2S级 |6. 如何选择合适的型号？1. 确定电压等级（10kV/35kV/110kV）。  2. 选择结构类型干式/油浸/SF6）。  3. 明确用途（计量/保护）。  4. 考虑安装方式（贯穿式/支柱式）。  5. 核对精度要求（0.2级/0.5级/5P级）。   客户需要说明应用场景，额定电压等级、负载、变比、保护等级、容量大小等参数以便于我们进一步推荐匹配的型号！In industrial high-voltage power distribution systems, the models of high-voltage current transformers (HV CT) are mainly based on factors such as voltage level, structure type, installation method, accuracy level, and insulation material. The following is a detailed description of the classification and model differences for your reference:1. Classification of transformers by voltage level and application scenariosCommon voltage levels of industrial high-voltage power distribution systems include 10kV, 35kV, 66kV, 110kV, 220kV, etc. Different voltage levels correspond to different transformer models:- 10kV high voltage transformer (such as LZZBJ9-10): suitable for factory power distribution, small and medium-sized substations.- 35kV high voltage transformer (such as LZZBW-35): used for medium-sized industrial power distribution and regional power grids.- 66kV/110kV high voltage transformer (such as LVQB-110): suitable for large industrial electricity and power plant grid connection.- 220kV and above (such as TYD-220): Mainly used in ultra-high voltage transmission systems.2. Classification by transformer structure type and applicable fields(1) Dry type (epoxy resin casting type)-Model examples: LZZB, LZZBJ, AS12- feature:l - Oil-free design, maintenance-free, fire-proof and explosion-proof.- Suitable for 10kV~35kV distribution cabinets and switch cabinets.- Commonly found in factories, commercial buildings, data centers(2) Oil-immersed- Model examples: JDJ, JDZ, JDZX- Features:- Adopt transformer oil insulation, good heat dissipation, suitable for 35kV~220kV.- Mostly used in outdoor substations and power plants.(3) SF6 gas insulation(4) - Model examples: LVQB, GIS-CT- Features:- Using sulfur hexafluoride (SF6) insulation, small size, suitable for 66kV~550kV.- Mainly used in GIS (Gas Insulated Switchgear).(5) Electronic type (optical mutual inductor)(6) Model examples: ROG-CT, EVT- Features:- Coreless, using: fiber optic sensing technology, suitable for smart grid (digital substation).- High precision (0.2S level), strong resistance to electromagnetic interference.3. Classification by accuracy level and applicable fieldsDifferent application scenarios have different requirements for accuracy. Common levels are:- Class 0.1/Class 0.2 (Energy measurement, such as electric meters)- Class 0.5 (general industrial measurement)- Class 1 / Class 3 (Relay protection, such as short circuit detection)- 5P / 10P (protection level, such as overcurrent protection)4. Classification by insulation material| Insulation Type| Model Example| Features|| Epoxy resin | LZZB, AS12 | Moisture-proof, flame-retardant, suitable for indoor use || Silicone rubber | LZZBW | UV resistant, suitable for outdoor use || Ceramic insulation | JDZX | High temperature resistance, used in special environments || Composite insulation | LVQB | SF6+epoxy resin, for GIS |5. Industrial Application Selection Guide| Application scenarios| Recommended models| Key parameters|| Factory 10kV power distribution | LZZBJ9-10 | 0.5 grade, epoxy resin casting || Outdoor 35kV substation | LZZBW-35 | IP65 protection, silicone rubber housing || Power plant 110kV protection | LVQB-110 | 5P20 grade, SF6 insulation || Smart Grid Digital Station | EVT-220 | Electronic, 0.2S Class |6. How to choose the right model?1. Determine the voltage level (10kV/35kV/110kV).2. Select the structure type (dry type/oil immersed/SF6).3. Clarify the purpose (measurement/protection).4. Consider the installation method (through-type/pillar-type).5. Check accuracy requirements (0.2 level/0.5 level/5P level).Customers need to explain the application scenario, rated voltage level, load, transformation ratio, protection level, capacity and other parameters so that we can further recommend matching models!