一、型号解读（Model Interpretation）

• JDJ2/JDJJ2，J=电压互感器、D=单相、J=油浸式；双J代表带剩余绕组（接地保护）；33/35代表额定电压；标配全密封、防污型，可选高原/盐雾定制；精度2/0.5/1/6P级
• JDJ2/JDJJ2, J=Voltage Transformer, D=Single-phase, J=Oil-immersed; Double J indicates residual winding (earth fault protection); 33/35=Rated Voltage; Hermetic seal & anti-pollution as standard, plateau/salt spray customization available; Accuracy Classes 0.2/0.5/1/6P

二、产品摘要（Product Summary）

33kV/35kV油浸式户外电压互感器（PT）是专为33/35kV户外交流电力系统设计的高精度电磁设备，适配亚洲、非洲、中东、欧洲、澳洲等全球中高压配网场景。采用全密封油箱+优质变压器油+三柱式硅钢片铁芯，一次/二次绕组真空干燥浸油，瓷质/复合硅橡胶套管，具备0.2级高精度计量、继电保护、电压监测功能；防污、耐候、抗盐雾，可在-40℃~+40℃、海拔≤4000m环境稳定运行，广泛用于35kV变电站、柱上高压计量箱、架空线路、工业园区配网、风电/光伏电站，执行GB 1207/IEC 61869国际标准，安全可靠，使用寿命达30年以上。

The 33kV/35kV oil-immersed outdoor voltage transformer (PT) is a high-precision electromagnetic device designed for 33/35kV outdoor AC power systems, suitable for global medium & high-voltage distribution scenarios (Asia, Africa, Middle East, Europe, Australia). It features a hermetically sealed tank, premium transformer oil, and three-limb silicon steel core, with primary/secondary windings vacuum-dried and oil-impregnated, and porcelain/composite silicone rubber bushings. It provides Class 0.2 high-precision metering, relay protection, and voltage monitoring. Anti-pollution, weather-resistant, salt spray resistant, reliable operation at -40℃~+40℃ and altitude ≤4000m. Widely applied in 35kV substations, pole-mounted high-voltage metering boxes, overhead lines, industrial park distribution networks, wind & solar power plants. Compliant with GB 1207/IEC 61869 international standards, safe and durable with a service life over 30 years.

三、产品详细描述（Product Detailed Description）

在33kV/35kV高压户外配电系统中，电压互感器（PT）是电能计量、电压监测、继电保护的核心设备，直接影响电费结算的准确性和电网故障的快速切除，必须具备极高的测量精度、长期稳定性和极强的环境适应力，以应对全球高温、高湿、盐雾、重污秽、高原等复杂气候挑战。传统PT常存在漏油、油老化快、精度漂移、污闪风险高等痛点，难以满足户外高压场景的严苛要求。

33kV/35kV油浸式户外电压互感器（PT）针对性解决上述问题，专为中高压户外场景量身打造，兼顾33kV与35kV双电压适配，核心优势如下：

1. 双电压+多精度：兼容33kV（36kV绝缘水平）、35kV（5kV绝缘水平）；0.2级高精度计量、0.5级普通计量、1级监测、6P级继电保护，按需选配
2. 核心功能：将33/35kV高压转为100V/√3或100V标准二次电压；JDJJ2型带剩余绕组（100/3V），实现接地故障保护；严禁短路，需配熔断器；全密封杜绝漏油与潮气
3. 结构可靠：三柱式硅钢铁芯低损耗；无氧铜绕组真空浸油；油箱带油位指示、放油阀、接地螺栓；防污瓷套/复合硅橡胶套管，爬电距离充足，抗污闪、耐盐雾、抗紫外线
4. 安装灵活：支持户外柱上垂直/水平、变电站落地安装，安装孔标准化，二次接线密封防护
5. 环境适配：工作温度-40℃~+40℃，海拔≤4000m，抗震≤8级；可定制高原（>2500m）、盐雾（沿海）、重污秽（工业区）型；执行GB 1207、IEC 61869-1/3
6. 应用场景：35kV变电站母线监测、柱上高压计量箱、风电/光伏并网计量、工业园区配网、铁路牵引变电站

In 33kV/35kV high-voltage outdoor distribution systems, voltage transformers (PTs) are core equipment for energy metering, voltage monitoring, and relay protection, directly affecting the accuracy of electricity billing and rapid clearing of grid faults. They must have extremely high measurement accuracy, long-term stability, and strong environmental adaptability to cope with global complex climate challenges including high temperature, high humidity, salt spray, heavy pollution, and high altitude. Traditional PTs often suffer from oil leakage, rapid oil aging, accuracy drift, and high pollution flashover risk, which are difficult to meet the harsh requirements of outdoor high-voltage scenarios.

The 33kV/35kV oil-immersed outdoor voltage transformer (PT) specifically addresses the above pain points, tailored for medium and high-voltage outdoor scenarios, with dual voltage compatibility for 33kV and 35kV. Core advantages are as follows:

1. Dual Voltage & Multi-Accuracy：Compatible with 33kV (36kV insulation level) and 35kV (40.5kV insulation level); Class 0.2 high-precision metering, Class 0.5 general metering, Class 1 monitoring, Class 6P relay protection, selectable on demand
2. Core Function：Steps down 33/35kV high voltage to 100V/√3 or 100V standard secondary voltage; JDJJ2 series with residual winding (100/3V) for earth fault protection; Strictly prohibited from short-circuit, must be protected by fuses; Hermetic seal prevents oil leakage and moisture ingress
3. Reliable Structure：Three-limb silicon steel core with low loss; Oxygen-free copper windings with vacuum oil impregnation; Oil tank equipped with oil level indicator, drain valve, and grounding bolt; Anti-pollution porcelain/composite silicone rubber bushings with sufficient creepage distance, anti-pollution flashover, salt spray resistance, UV resistance
4. Flexible Installation：Supports outdoor pole-mounted vertical/horizontal installation and substation floor installation, standardized mounting holes, sealed protection for secondary wiring
5. Environmental Adaptability：Operating temperature -40℃~+40℃, altitude ≤4000m, seismic resistance ≤8 degrees; Customizable plateau type (>2500m), salt spray type (coastal), heavy pollution type (industrial area); Compliant with GB 1207, IEC 61869-1/3
6. Application Scenarios：35kV substation bus monitoring, pole-mounted high-voltage metering boxes, wind/solar grid-connected metering, industrial park distribution networks, railway traction substations

四、产品参数表（Parameters Table）