О разработке пожаробезопасных комплектных устройств низкоомного резистивного заземления нейтрали (КРЗН) для организации селективного отключения однофазных повреждений в сетях 6-10 кВ

Features of a complex device for low-ohmic resistive neutral grounding implementation design process are reviewed. The device is based on composite resistors with low operating temperature and fire-proof transformers. Special attention is paid to selection of a neutral-forming transformer power: a method is suggested to choose the power based short circuit withstand ability of transformers instead of choosing based on overload ability. Significant decrease of mass and dimensions of the device is reached.

Hali tarjima qilinmagan