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適用范圍Application Range
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主要用于開斷、關(guān)合電力系統(tǒng)的負(fù)載電流、過載電流及短路電流。適用于變電站、工礦企業(yè)及城、農(nóng)網(wǎng)作保護(hù)和控制，是城、農(nóng)網(wǎng)改造的理想設(shè)備。
Mainly used for breaking, closing load current and short circuit current of the power system for substations, mining enterprises and urban and rural distribution grid protection and control, it is a perfect device for urban and rural network reformation.
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產(chǎn)品特點(diǎn)Product Features
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ZW20A-12采用成熟的箱式密封結(jié)構(gòu)，內(nèi)部充以SF6氣體，具有良好的密封性能，是一種免維護(hù)產(chǎn)品。其彈簧操作機(jī)構(gòu)采用直動傳動和多級脫扣系統(tǒng)，動作可靠性高；配備航空插座作二次電氣連接、便于與智能化控制器相結(jié)合。
1. 操作靈活，方便：本產(chǎn)品為電動儲能、電動分合，同時具有手動儲能、手動分合；
2. 開斷性能優(yōu)越：開斷額定短路電流達(dá)30次；
3. 操作功率小，可靠性高：全新設(shè)計(jì)的小型電動彈簧機(jī)構(gòu)，機(jī)件數(shù)目和操作功都降低到最低水平；
4. 安裝方式靈活：可采用柱上吊裝或坐裝安裝方式；
5. 獨(dú)特的進(jìn)出線方式：采用硅橡膠套管，使接線端子之間絕緣距離充裕，外絕緣特性優(yōu)良；
6. 使用安全：在箱體頂部安裝有防爆裝置，即使發(fā)生意外的內(nèi)部故障，也不會有高溫氣體或飛濺物泄漏出來。
ZW20A-12 uses better box-type seal structure. Interior filled with SF6 gas, with good sealing performance, and maintenance-free, the spring operating mechanic uses direct drive transmission system and multi-stage release, it has the high operating reliability; with secondary aerial socket for the electrical connection with the intelligent controller combination.
1. Flexible operation, this product is the power storage with hand-operated and automatic electric operation;
2. Superior breaking advantage: breaking short current can reach 30 times;
3. Small operation power with the high reliability; all newly-designed small size electric spring mechanism, the operation power can be decrease at lowest level;
4. Flexible installation: it can be placed on the column or hung on the column;
5. Unique in-out way of cables: using bushing to expand the insulation space between the terminals, the unique insulation characteristics;
6. Safety utilization: installation the explosion-proof device on the top of the cabinet. The high temperature gas or spatter will not be leak, even if there is accident inside.
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