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发明授权
CN101877470B 一种带专用整流变压器的直流融冰装置及其保护方法 有权 转让

一种带专用整流变压器的直流融冰装置及其保护方法
摘要：
本发明是一种带专用整流变压器的直流融冰装置及其保护方法。本发明带专用整流变压器的直流融冰装置，包括有交流侧供电断路器QF、隔离刀闸K，整流变压器，阀侧电流互感器Ivya、Ivyb、Ivyc、Ivda、Ivdb和Ivdc，一个十二脉动换流器，直流侧正极电压互感器Udp，直流侧负极电压互感器Udn，直流侧正极电流互感器Idp，直流侧负极电流互感器Idn，直流侧接地电流互感器Idgnd，直流侧刀闸S1、S2、S3和S4，本发明直流融冰装置设计合理，投资少，成本低；本发明带专用整流变压器的直流融冰装置的保护方法确保直流融冰装置满足各线路安全快速融冰的需求，并降低直流融冰装置的投资。本发明是一种设计巧妙，性能优良，投资低，保护功能齐备，方便实用的带专用整流变压器的直流融冰装置及其保护方法。
摘要（英）：

The invention relates to a direct current thawing apparatus with a special rectiformer and a protection method thereof. The direct current thawing apparatus with the special rectiformer comprises an alternating current side power supply circuit breaker QF, an isolating disconnect switch K, a rectiformer, valve side current transformers Ivya, Ivyb, Ivyc, Ivda, Ivdb and Ivdc, a 12-pulse converter, a DC-side positive voltage mutual inductor Udp, a DC-side negative voltage mutual inductor Udn, a DC-side anode current mutual inductor Idp, a DC-side cathode current mutual inductor Idn, a DC-side grounding current mutual inductor Idgnd, and direct current side knife switches S1, S2, S3 and S4. The direct current thawing apparatus has the advantages of reasonable design, low investment and low cost. The protection method ensures the direct current thawing apparatus to satisfy the demand of safe and quick thawing in all circuits, and lowers the investment into the direct current thawing apparatus. The invention has the advantages of ingenious design, favorable performance, low investment, complete protection functions, convenience and high practicality.

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