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0558wy
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樓主  發(fā)表于: 2023-08-09 08:02
今天看想看一下關(guān)于家庭用電的國家政策，發(fā)現很文件中提到的單位是  KVA ，
百度一下發(fā)現這個(gè)單位和 千瓦時(shí) 是相等的。
但是這個(gè)幾百 KVA 怎么說(shuō)？


https://new.qq.com/rain/a/20230529A03U6O00
langui
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1樓  發(fā)表于: 2023-08-09 08:41
有功功率和無(wú)功功率的總和，因為三相變壓器中存在感性負載和三相不平衡的原因，也可能出現某相超載的原因，所以一般變壓器的輸出功率大概在變壓器標定功率的85-90%左右。也就是1000KVA的變壓器，實(shí)際輸出功率在850KW左右。

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