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6kV Three-Phase Overvoltage Protector, Special for Switchgear/Motor, Zinc Oxide Lightning Arrester
Short Description:
The 6kV three-phase combined overvoltage protector is an integrated lightning protection and overvoltage protection device specially designed for 6kV high-voltage power distribution systems. Core equipped with high-quality zinc oxide resistor chips, it integrates dual protection functions of phase-to-phase and phase-to-ground, which can effectively limit atmospheric overvoltage (lightning strike) and switching overvoltage (equipment start-stop, switch operation), prevent insulation breakdown and burnout of electrical equipment, and ensure stable operation of the system. With advantages of small size, easy installation, maintenance-free, anti-pollution flashover and resistance to high and low temperatures, it is widely suitable for switchgear, high-voltage motors, transformers, capacitor banks and other equipment, and is an essential protection device for 6kV industrial and mining enterprises, new energy power stations and urban-rural power grids.
一、产品描述（Product Description）
在6kV高压配电系统中，雷击、设备操作等引发的过电压，是导致开关柜、电机、变压器等核心设备损坏、线路故障的主要原因，不仅影响生产运营，还会造成巨大的经济损失。6kV三相组合式过电压保护器，以“一体化防护、高效可靠、免维护省心”为核心，为6kV配电系统提供全方位的过电压解决方案。
产品采用三相一体化结构设计，无需单独配置相间与对地保护装置，大幅节省安装空间，适配柜内、支架等多种安装场景，无论是开关柜内部安装，还是户外柱上设备配套，都能灵活适配。核心部件选用优质氧化锌电阻片，具备通流容量大、残压低、响应速度快（纳秒级）的特点，能在过电压产生的瞬间快速导通，将过电压限制在设备耐受范围内，避免绝缘击穿。
针对不同使用场景，产品提供无间隙与带间隙两种结构可选：无间隙款响应更迅速，适合对保护精度要求高的场景；带间隙款抗老化、耐磨损，使用寿命更长，适配恶劣户外环境。整体采用密封防腐设计，外壳选用高强度绝缘材料，防护等级达IP54及以上，可耐受-40℃~+70℃的极端温度，抗潮湿、防盐雾、抗紫外线，无论是户内开关柜，还是户外工矿、新能源场站，都能稳定运行。
相较于传统单一过电压保护设备，本品实现了相间、相对地同步保护，无需复杂接线，安装便捷，且运行过程中无需定期维护，大幅降低运维成本。广泛应用于6kV高压电机、变压器、开关柜、环网柜、电容器组，以及光伏、风电等新能源场站、矿山、石化、城乡配网等领域，为电气设备和配电系统的安全稳定运行保驾护航。
Description
In 6kV high-voltage power distribution systems, overvoltage caused by lightning strikes, equipment operation and other factors is the main cause of damage to core equipment such as switchgear, motors, transformers and line failures, which not only affects production and operation, but also causes huge economic losses. The 6kV three-phase combined overvoltage protector, with “integrated protection, high efficiency and reliability, and maintenance-free convenience” as the core, provides a comprehensive overvoltage solution for 6kV power distribution systems.
The product adopts a three-phase integrated structure design, which does not require separate configuration of phase-to-phase and phase-to-ground protection devices, greatly saving installation space and adapting to various installation scenarios such as indoor cabinet and bracket installation. Whether it is installed inside the switchgear or matched with outdoor pole-mounted equipment, it can be flexibly adapted. The core components are high-quality zinc oxide resistor chips, which have the characteristics of large current capacity, low residual voltage and fast response speed (nanosecond level). They can conduct quickly at the moment of overvoltage generation, limit the overvoltage within the tolerance range of the equipment, and avoid insulation breakdown.
For different application scenarios, the product offers two optional structures: gapless and gapped. The gapless version has a faster response, suitable for scenarios requiring high protection accuracy; the gapped version is anti-aging and wear-resistant, with a longer service life, suitable for harsh outdoor environments. The overall design is sealed and anti-corrosion, the shell is made of high-strength insulating materials, and the protection level reaches IP54 and above. It can withstand extreme temperatures from -40℃ to +70℃, resist moisture, salt fog and ultraviolet radiation, and can operate stably whether it is indoor switchgear or outdoor industrial and mining, new energy power stations.
Compared with traditional single overvoltage protection equipment, this product realizes synchronous protection of phase-to-phase and phase-to-ground, without complex wiring, easy installation, and no regular maintenance during operation, which greatly reduces operation and maintenance costs. It is widely used in 6kV high-voltage motors, transformers, switchgear, ring main units, capacitor banks, as well as photovoltaic, wind power and other new energy power stations, mines, petrochemicals, urban and rural power grids and other fields, escorting the safe and stable operation of electrical equipment and power distribution systems.
二、产品参数表（Product Parameters Table）
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参数项目
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具体参数
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产品型号
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TBP-B-6kV / HY5WZ-7.6/19（常规型号，可定制）
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产品类型
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三相组合式过电压保护器、高压防雷避雷器
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额定电压
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6kV（适配6kV三相交流系统）
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持续运行电压
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≥7.6kV（有效值）
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标称放电电流
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5kA / 10kA（8/20μs）
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最大通流容量
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40kA~100kA（按型号定制）
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保护模式
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三相组合式（A-B、B-C、C-A相间 + A、B、C相对地）
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结构类型
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无间隙 / 带间隙（可选）
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核心材质
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优质氧化锌电阻片、高强度绝缘外壳
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安装方式
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柜内安装、支架安装（配套安装件）
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防护等级
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IP54及以上
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环境温度范围
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-40℃ ~ +70℃
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适用海拔
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≤2000m（高海拔可定制）
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执行标准
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GB 11032-2018、IEC 60099-4
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外形尺寸（约）
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180×120×80mm（按型号略有差异）
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Parameters Table
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Parameter Items
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Specific Parameters
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Product Model
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TBP-B-6kV / HY5WZ-7.6/19 (Standard model, customizable)
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Product Type
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Three-Phase Combined Overvoltage Protector, High-Voltage Lightning Arrester
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Rated Voltage
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6kV (Suitable for 6kV three-phase AC system)
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Continuous Operating Voltage
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≥7.6kV (Effective value)
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Nominal Discharge Current
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5kA / 10kA (8/20μs)
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Maximum Discharge Current
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40kA~100kA (Customizable by model)
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Protection Mode
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Three-phase combined (A-B, B-C, C-A phase-to-phase + A, B, C phase-to-ground)
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Structure Type
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Gapless / Gapped (Optional)
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Core Material
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High-quality zinc oxide resistor chips, high-strength insulating shell
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Installation Method
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Indoor cabinet installation, bracket installation (with mounting accessories)
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Protection Level
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IP54 and above
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Ambient Temperature Range
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-40℃ ~ +70℃
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Applicable Altitude
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≤2000m (High altitude customizable)
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Execution Standards
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GB 11032-2018, IEC 60099-4
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Overall Dimensions (Approx.)
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180×120×80mm (Slightly different by model)
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