开关柜中采用两进线一母联的双电源转换方式的好处,和普通的ATS相比。

2025年04月06日 03:40
有2个网友回答
网友(1):

先说ATS,ATS一般用在消防回路或较重要负荷的末端切换箱,都是两进一出,两路不能同时投入,部分型号产品可以做到两路进线同时切除。等于是每条进线都要同时满足出现负荷(部分设计考虑供电经济性,会按照负荷分级,将部分次要负荷切除)。
两进一母联一般用在低压进线柜,两路进线分别取自不同的变压器,由于变压器具有短时过载能力,例如过载150%时可以持续供电8h,这样就为了事故时不影响供电创造了条件。一般设计是每台变压器所带负荷为额定值的75%,各带总负荷的一半。这样当单台变压器故障时,可以通过母联开关将所有负荷切到一台变压器供电。由于变压器可以短时超载。这样可以节约变压器的投资。
两路供电就是保证了供电的可靠性,二级负荷必须两路供电,且需要取自不同电源的两路进线。

网友(2):

肯定前者比后者好,前者比后者风险少,但要双路用户进线是一般单位条件是不容易具备的。

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