产品中心
技术支持 当前位置:首页>技术支持>技术支持

电阻柜内主要元器件的作用

网址:www.jiedixiang58.com  2020-07-27  作者:admin    阅读:

电阻柜发热问题是怎么解决的?
How to solve the heating problem of resistance cabinet?
①监测单元内部有设备隔热层
① There is a thermal insulation layer inside the monitoring unit
②发热时间短,小于 10 秒,短时间内产生的热量对电子电路影响不大。
② The heating time is short, less than 10 seconds, and the heat generated in a short time has little effect on the electronic circuit.
③柜体本身的通风设计可以使热量迅速散掉。
③ The ventilation design of the cabinet can make the heat dissipate quickly.
④内部芯片采购比较好,耐温性好。
④ Internal chip purchase is good, good temperature resistance.
<注>:智能控制单元更为确切的名称是智能检测单元。这个元件不会给电阻柜产生任何影
Note: the more precise name of intelligent control unit is intelligent detection unit. This element will not produce any effect on the resistance cabinet
响。
Ring.
<注>温升定义:电气通过电流时,各部位的温度与周围空气温度的差值。
Temperature rise definition: the difference between the temperature of each part and the surrounding air temperature when the electric current passes through.
4、三相 Z 型接地变的作用:
4. Function of three-phase Z-type grounding transformer:
①形成人为中性点
① Forming artificial neutral point
②允许有较低的零序阻抗
② Lower zero sequence impedance is allowed
③可降低系统电压中的平衡
③ It can reduce the balance in the system voltage
5、发电机中性点接地为什么采用单相接地变压器接地的方式?
5. Why is single phase grounding transformer used in generator neutral grounding?
1)降低成本,节约空间;
1) Reduce cost and save space;
2)国际标准设计;
2) International standard design;
3)提高接地设备过载能力,增加中性点接地柜的运行可靠性;
3) Improve the overload capacity of grounding equipment and increase the operation reliability of neutral grounding cabinet;
4)业界普遍认为是最优方案。
4) It is generally considered to be the best solution in the industry.

返回新闻

电话
15003226909