The over-load protection technology is an indispensable constituent of the low-voltage apparatus intellectualization, ensuring the electric motor and the distribution line safe operation.
过载保护技术是低压电器智能化技术的重要组成部分，是保证电动机、配电线路安全运行的重要技术。
The reason is that the transformer supply area is too broad and the low-voltage line is too long in present distribution model.
究其原因在于现有配电模式中配电变压器供电范围过大，低压线供电半径过长。
So it will be applicable to different kinds of low-voltage distribution networks and plays its role of reducing line depletion and improving the quality and stability of the power grid operation.
所以它将适用于各类中低压配电网络，起到降低线路损耗，提高电网运行质量和稳定性的作用。
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