保護型零序電流互感器廠家 供應ZCT零序電流互感器價格
任何電網設備都存在對地絕緣電阻和接地電流監控的必要性,為**其安全運行,這種監控必須是連續不斷或經常的,并要在接地電流大于允許值時,就能發出警報以提醒操作者妥善處理由于絕緣電阻下降而可能引發的事故。
All power network equipment have the necessity to monitor the ground insulation resistance and the ground current to ensure the running safely. This monitoring must be continuously or frequently, and when the ground current is higher than allowable, it can give alarms to remind the operator to deal with the fault to avoid the possible accident due to insulation resistance decreased.
SD-0.66-L型剩余(零序)電流互感器,與本公司專用電流繼電器配套使用。該產品為戶內電纜式,具有結構新、體積小、精度高、外形美觀等特點。主要適用于TT或TN系統中ABCN同時穿越ZCT時使用
SD-0.66-L type residual (zero sequence) current transformer is used together with our specified current protection relay. It is designed for in-house cable entry and has the features of modern construction, small size, high precision and fine appearance.
It is mainly applied for ABCN to go through the ZCT simultaneously in the TT and TN system.
由SD-ZLD系列剩余電流動作保護繼電器和零序電流互感器組合,構成接地故障保護裝置,適用于TN、TT和IT電網系統。通過接地電流互感器檢測出接地零序漏電電流,經剩余電流動作保護繼電器與設定值的比較和判別,及時發出動作信號,接通或斷開報警回路,以避免事故的擴大,從而保證人員及設備的安全。
The combination of SD-ZLD series residual current transformer and zero sequence current protection relay forms ground fault protection device, it applies to TN,TT and IT power system. Via the ground current transformer to detect the ground leak current, the current protection relay compares the sensed current with the setting value and issues operating ** timely, make or break the alarm circuit, to avoid the accident, ensure the safety of personnel and equipment.
內孔**過200的可按需定制
桑迪電器___保護型零序電流互感器廠家 供應ZCT零序電流互感器價格