1)   Why Isolation Transformers? 为什么需要隔离变压器? 2)   What is K-Factor? K系数是什么? 3)   What is K-Factor Rated Transformers? 什么是K系数级别变压器? 4)   Why is K-Factor transformers are necessary?  为什么需要采用K系数变压器? 5)   What is Harmonic Mitigating Dzn0 Zigzag Transformers? 什么是具有抑制谐波的Dzn0 Zigzag变压器? 6)   Why are copper wound transformers are better than aluminum wound transformers ? 为什么铜绕组变压器比铝绕组变压器好? 7)   Why transformer low inrush is important in UPS systems? 为什么变压器的低合闸浪涌在UPS系统中非常重要? 8)   Why enameled copper conductor is better than fiber glass wrapped copper conductor?  为什么漆包铜导线比丝包铜导线好?