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66kV Capacitive Voltage Transformer TYD-66 | Special Equipment for High Voltage Metering and Protection

Short Description:
Our 66kV Capacitive Voltage Transformer TYD-66 is a special voltage conversion and measuring device designed for 66kV high-voltage power systems. It adopts capacitor voltage division structure and oil-paper insulation system, with high accuracy, low partial discharge, strong anti-resonance performance, good stability and high reliability. It is mainly used for voltage sampling, electric energy metering, relay protection and system monitoring in 66kV substations, transmission lines and industrial power systems. The product complies with IEC and GB standards, has compact structure, good insulation performance, strong environmental adaptability, and can operate stably for a long time in outdoor harsh environments. It is an ideal key equipment for 66kV power grid.

1. Product Overview 产品概述

TYD-66 capacitive voltage transformer is a voltage measuring and transforming equipment specially used in 66kV power systems. It adopts capacitor voltage division principle, which can convert high-voltage signals into standard low-voltage signals (100V) for measuring instruments, protection devices and metering equipment. The product adopts oil-paper composite insulation, capacitor divider and electromagnetic unit integrated structure, with high measurement accuracy, good transient response, strong anti-interference ability and long service life. It is widely used in 66kV substations, transmission lines, power plants and industrial and mining enterprises.

TYD-66 电容式电压互感器是专用于 66kV 电力系统的电压测量与变换设备采用电容分压原理可将高压信号转换为标准低压信号(100V)供测量仪表保护装置及计量设备使用产品采用油纸复合绝缘电容分压器与电磁单元一体化结构测量精度高暂态响应好抗干扰能力强使用寿命长广泛应用于 66kV 变电站输电线路发电厂及工矿企业


2. Core Features 核心特点

  1. High Measuring Accuracy 测量精度高

    采用高精度电容分压器精度可达 0.2 、0.5 满足计量与保护双重要求

  2. Capacitive Voltage Division Structure 电容分压结构

    体积小重量轻绝缘性能好有效避免铁磁谐振运行更安全

  3. Low Partial Discharge 局部放电量低

    采用优质油纸绝缘与精密工艺局放小绝缘寿命长可靠性高

  4. Strong Anti-Resonance Ability 抗谐振能力强

    结构设计合理可有效抑制铁磁谐振保证系统安全稳定

  5. Good Outdoor Environmental Adaptability 户外环境适应性强

    适用温度 -40℃~+60℃防污防潮防盐雾可长期户外运行

  6. Complete Protection & Long Service Life 防护完善寿命长

    全密封结构防护等级高免维护周期长设计使用寿命≥30 年


3. Technical Parameters 技术参数

Item 项目 Specification 技术指标
Product Model 产品型号 TYD-66
Rated Voltage 额定电压 66kV
Rated Frequency 额定频率 50Hz
Rated Primary Voltage 额定一次电压 66/√3 kV
Rated Secondary Voltage 额定二次电压 100/√3 V,100/3 V
Accuracy Class 精度等级 0.2, 0.5
Insulation Structure 绝缘结构 Oil-paper insulation 油纸绝缘
Partial Discharge 局部放电 ≤10pC
Cooling Method 冷却方式 AN 自冷
Ambient Temperature 环境温度 -40℃ ~ +60℃
Altitude 适用海拔 ≤1000m (can customize for higher altitude)
Design Service Life 设计使用寿命 ≥30 years

4. Application Scenarios 应用场景

  1. 66kV substations for voltage measurement, metering and relay protection

    66kV 变电站用于电压测量计量与继电保护

  2. 66kV high-voltage transmission and distribution lines

    66kV 高压输配电线路

  3. Power plants, booster stations and switching stations

    发电厂升压站及开闭所

  4. Large industrial and mining enterprises with 66kV power supply

    使用 66kV 供电的大型工矿企业

  5. 66kV power grid monitoring and automation systems

    66kV 电网监测与自动化系统


5. After-Sales Service 售后服务

  1. Factory Direct Supply & Quality Assurance

    工厂直供资质齐全提供型式试验报告出厂试验报告

  2. Customized Service

    可根据电压等级精度容量海拔防污等级定制

  3. Installation & Commissioning Guidance

    提供安装接线调试指导及技术培训

  4. Long-term After-sales Support

    提供终身维护备品备件供应及快速故障处理

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