80户住宅小区共11栋别墅，总用电负荷877kw怎么选择变压器容量的
=844.68(kW)
Qjs = kq * ∑(kd * Pe * tgΦ) - QC1
=403.46(kvar)
Sjs = √(Pjs * Pjs + Qjs * Qjs)
=936.09(kVA)
Ijs = Sjs / (√3 * Ur)
=1422.24(A)
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