| 煤矿专用AL-BNR系列低压接地电阻柜功能 |
| 添加时间：2018/8/31 16:09:39 浏览次数： |
| 概述： Summary: NS-DR低压接地电阻柜是我公司研制的低压系统中采用电阻接地的专用成套设备。对降低电网过电压、提高电网的安全可靠性，适用于低压柴油发电机组0.22kV、火力发电厂0.38kV、煤炭企业0.66kV、电力用户0.1kV的低压系统、启动及制动和功率等电阻设备。 NS-DR low-voltage grounding resistance cabinet is a special set of equipment for low-voltage system with resistance grounding developed by our company. To reduce the overvoltage of the power grid and improve the safety and reliability of the power grid, it is suitable for resistance equipment such as 0.22 kV low-voltage diesel generating set, 0.38 kV thermal power plant, 0.66 kV coal enterprise, 0.1 kV low-voltage system of power users, starting and braking and power etc. NS-DR低压电阻柜精度高、线性度好、运行可靠、安装方便、外形美观；内部电阻器采用优质非金属特种材料或不锈钢材质镍铬合金（Cr20Ni80），阻值稳定、导电率高、通流能力强、耐高温、耐腐蚀、防燃防爆、可靠性高；可以适用于各种低压配电系统中，在低压线路中，如无中性点，加接地变压器可与之配合使用，对抑止系统过电压、防止各种冲击有良好的作用。 NS-DR low-voltage resistance cabinet has high precision, good linearity, reliable operation, convenient installation and beautiful appearance; internal resistors are made of high-quality non-metallic special materials or stainless steel nickel-chromium alloy (Cr20Ni80), which has stable resistance, high conductivity, strong current carrying capacity, high temperature resistance, corrosion resistance, flame-proof, explosion-proof and high reliability. Used in various low-voltage distribution systems, if there is no neutral point in the low-voltage line, the grounding transformer can be used in conjunction with it, which has a good effect on restraining the overvoltage of the system and preventing various shocks. 使用条件 Conditions of use 1、环境温度：-40℃～+60℃，相对湿度：不大于95%（35℃）； 1. Ambient temperature: -40 C to +60 C, relative humidity: no greater than 95% (35 C); 2、安装地点海拔高度不超过4000m； 2, installation location altitude not exceeding 4000m; 3、安装场所的空气中不应含化学腐蚀气体和蒸汽，无爆炸性尘埃； 3, the installation of the air should not contain chemical corrosive gas and steam, no explosive dust; 4、电网频率：48～52Hz（50Hz系统），58～62Hz（60Hz系统）。 4, power frequency: 48 ~ 52Hz (50Hz system), 58 ~ 62Hz (60Hz system). |
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