產品描述

●低壓電(dian)(dian)(dian)容器(qi)通常指額定電(dian)(dian)(dian)壓在(zai)400V~6kV之(zhi)間(jian)的電(dian)(dian)(dian)力電(dian)(dian)(dian)容器(qi)。低壓電(dian)(dian)(dian)容器(qi)作(zuo)用(yong)是改善功率因素從(cong)而減小用(yong)電(dian)(dian)(dian)費用(yong)，并能(neng)夠減輕設備的負荷，增加其使用(yong)壽命，減少供電(dian)(dian)(dian)端(duan)到用(yong)電(dian)(dian)(dian)端(duan)之(zhi)間(jian)的線(xian)路損(sun)失。

電容器選擇

公(gong)式：Ue=Ux/(1-P) ×1.1

●系(xi)統電壓Ux為(wei)400V，電抗率P選(xuan)擇7%時，Ue=473V，我(wo)們一般選擇480V的額定電壓。

●系統電壓Ux為400V，電抗率P選擇14%時，Ue=512V，我(wo)們(men)一(yi)般(ban)選擇525V的額定(ding)電壓(ya)。

●系統電壓Ux為690V，電抗率P選擇7%時，Ue=816V，我們一(yi)般選擇(ze)820V的額定電壓。

●系統電(dian)壓Ux為(wei)690V，電(dian)抗(kang)率P選(xuan)擇14%時，Ue=883V，我(wo)們一般(ban)選(xuan)擇900V的(de)額定電壓。

●7%電(dian)抗(kang)率電(dian)抗(kang)器主要針對5次(ci)、7次(ci)諧波。

●14%電(dian)抗(kang)率電(dian)抗(kang)器主要針對3次(ci)諧波(bo)。