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发明公开
CN109038480A 一种中性点漂移保护装置 审中-实审

一种中性点漂移保护装置
摘要：
本发明涉及电网保护装置，尤其涉及一种中性点漂移保护装置，属于电网领域。本发明提供的一种中性点漂移保护装置，旨在解决现有技术中的中性点漂移保护装置稳定性差的技术问题。本发明提供的一种中性点漂移保护装置，三个欠过压保护器弥补了TT供电系统零线断线或者接触不良的时候，中性点会发生偏移的缺陷。当电压超过规定值迫使总保跳闸切断电源。该方案能降低用户电压超范围引起投诉，能避免供电电压过高或过低损坏用户用电设备。提高了电网运行过程的稳定性。
摘要（英）：

The invention relates to a power grid protection device, in particular to a neutral point drift protection device, belonging to the power grid field. The invention provides a neutral point drift protection device, aiming at solving the technical problem of poor stability of the neutral point drift protection device in the prior art. The invention provides a neutral point drift protection device, wherein three undervoltage protectors make up for the defect that the neutral point will shift when the neutral line of the TT power supply system is broken or the contact is poor. The neutral point drift protection device comprises a neutral point drift protection device and a neutral point drift protection device. When the voltage exceeds the specified value, the master guard is forced to trip and cut off the power supply. The scheme can reduce the complaint of a user caused by voltage exceeding a range, and can avoid the damage of user equipment of the user caused by too high or too low supply voltage. The stability of the operation process of the power grid is improved.

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