kilovolt-ampere rating

例句：

1. 1.The power grid needs to be rated for the expected load.
   电网需要被额定以适应预期的负载。
2. 2. The new transformer has a kilovolt-ampere rating of 500 kVA.
   新变压器的千伏安额定值为500 kVA。
3. 3. The system's kilovolt-ampere rating is sufficient for its intended purpose.
   该系统的千伏安额定值足以满足其预定用途。