产品特性用途：

●接地电阻采用不锈钢或铁铬合金冲压&激光切割工艺The grounding resistance adopts stamping and laser cutting technology of stainless steel or ferrochrome alloy。

●多层绝缘组装、工作稳定性高Multi-layer insulation assembly, high working stability。

●栅格电阻片与不锈钢螺丝连接The grid resistor is connected to stainless steel screws。

●智能监控、电流、电压、接地频率及警报装置记录Intelligent monitoring, recording of current, voltage, grounding frequency and alarm device。

●中性点接地电阻应用于城市配电、大型工业园区、电力变电厂、海上钻井平台110KV以下配电系统The neutral grounding resistance is applied in city power distribution, large industrial park, electric power transformer power plant and offshore drilling platform under 110KV power distribution system。

 

应用环境：

中性点接地电阻使用环境依DL/T593-2006 3.1规定The operating environment of neutral grounding resistance is specified in DL/ t593-2006 3.1

户  内：周边温度+40℃～-25℃；海拔：≤3000m Indoor: ambient temperature +40℃ ~ -25℃; Height: 3000 m or less.

        最小公称爬电比距：瓷质不小于18mm/KV、有机材料不小于20mm/KV Minimum nominal creepage specific distance: porcelain shall not be less than 18mm/KV, and organic materials shall not be less than 20mm/KV..

户  外：周边温度+40℃～-35℃；海拔：≤3000m Outdoor: ambient temperature +40℃ ~ -35℃; Height: 3000 m or less..

        最小公称爬电比距：Ⅱ级、Ⅲ25mm/KV、.Ⅳ31 mm/KV Than nominal minimum creepage distance: Ⅱ level, 25 mm/KV, Ⅲ. Ⅳ 31 mm/KV

 

产品技术性能：

●系统电压：0.38KV-110KV（3KV、6KV、10KV，35KV）System voltage: 0.38kv-110kv (3KV, 6KV, 10KV, 35KV)。

●故障电流：1A～20000A Fault current: 1A ~ 20000A

●额定时间：10S，持续时间2小时 Rated time: 10S, duration: 2 hours。

●额定频率：50Hz Rated frequency: 50Hz

●阻值范围：0.01～500ΩΩ resistance range: 0.01 ~ 500.

●温升：10S不锈钢760K、2h(长期不超过385K)，10S铸铁510，2h(长期不超过385K) Temperature rise: 10S stainless steel 760K, 2h(long-term no more than 385K), 10S cast iron 510,2h (long-term no more than 385K)。

●免维护，整体保质期30年Maintenance-free, with an overall shelf life of 30 years。

●外壳防护等级：IP00～IP56 Enclosure protection class: IP00 ~ IP56。

●可选配置隔离空气开关、电动开关、加热功能、PC智能监控、无纸记录仪Optional configuration isolation air switch, electric switch, heating function, PC intelligent monitoring, no paper recorder。