Common problem
|
|
| Release time:2016/7/18 Click times:5149 | |
| 高压负荷开关经常是跟高压熔断器串联配合使用,用来控制电力变压器,其选择的原则有以下六点: 1、分清户内户外式,户外式可用于户内,但户内式不能用于户外。 2、现场实际的开断电流应小于高压负荷开关的额定开断电流。 3、计算末端短路电流,作为选择开断最大转移电流的依据。 4、正确选择熔丝,一是可以根据被保护设备的容量来选择,二是要和上一级保护配合,即按秒曲线上动作电流对应的时间应小于上一级保护动作的时间,从而使电网的保护有选择性。 5、注意高压负荷开关应用的场合。在操作不频繁的地方,为了节约资源,可选用产气式,在操作应采用真空式,以达到免维护的目的。 6、需要远程操作时,应配电动机构,并配有手动机构。 |
|
|
Last one:高压负荷开关说明 Next article:切断负荷电流的装置——高压负荷开关 |

Is specialized in the transformer \ regulator \ regulator \ wire and cable and all kinds of high and low voltage power supply development, development, production and marketing of high-tech company, seated in the Jiading High-tech Development Industrial Park, a beautiful environment and convenient transportation.
The company passed the ISO9001 quality system certification, in the spirit of science and technology is the highest, quality is the.
Company products are exported to all over the world.
Company's products are sold throughout the country, the establishment of the vast number of sales network and after-sales team.
In order to protect the after-sales service, return customers to our consistent trust and support.
The introduction of more high-quality products to return the vast number of customers.
Mobile phone:15021754889