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ABB的REF545饋線終端保護(hù)裝置是一款功能強(qiáng)大的設(shè)備，具備以下特點(diǎn)：

1. 廣泛的適用性：REF545饋線終端可用于不同類(lèi)型的開(kāi)關(guān)設(shè)備，如單母線、雙母線和雙工系統(tǒng)，還可用于保護(hù)、控制、測(cè)量和監(jiān)視中壓電網(wǎng)。
2. 強(qiáng)大的保護(hù)功能：該裝置支持不同類(lèi)型的網(wǎng)絡(luò)，如隔離中性網(wǎng)絡(luò)、諧振接地網(wǎng)絡(luò)和部分接地網(wǎng)絡(luò)，并具備過(guò)溫、過(guò)流等保護(hù)功能。
3. 自動(dòng)化功能：REF545饋線終端配備了大量的PLC功能，可以將變電站自動(dòng)化所需的多種自動(dòng)化和順序邏輯功能集成到一個(gè)單元中。

在應(yīng)用場(chǎng)景方面，REF545饋線終端主要應(yīng)用于中壓電網(wǎng)的保護(hù)、控制、測(cè)量和監(jiān)視。其應(yīng)用范圍覆蓋了中型三相異步電機(jī)以及用于無(wú)功功率補(bǔ)償?shù)牟⒙?lián)電容器組的保護(hù)和控制。

至于其保護(hù)作用，除了基本的保護(hù)、測(cè)量、控制和狀態(tài)監(jiān)測(cè)外，REF545饋線終端還可以用于電能質(zhì)量的監(jiān)測(cè)，同時(shí)具備檢同期、頻率保護(hù)、電容器保護(hù)等功能。此外，它還支持RTD/模擬量測(cè)量模塊，可用于溫度、電流/電壓的測(cè)量和mA量的信號(hào)輸出。

總的來(lái)說(shuō)，ABB的REF545饋線終端保護(hù)裝置具備高度的靈活性、適應(yīng)性和功能性，是中壓電網(wǎng)中不可或缺的重要設(shè)備。

ABB's REF545 feeder terminal protection device is a powerful device with the following characteristics:

Widely applicable: REF545 feeder terminals can be used for different types of switchgear, such as single bus, double bus, and duplex systems, and can also be used for protection, control, measurement, and monitoring of medium voltage power grids.

Powerful protection function: This device supports different types of networks, such as isolated neutral networks, resonant grounding networks, and partially grounded networks, and has protection functions such as over temperature and over current.

Automation function: The REF545 feeder terminal is equipped with a large number of PLC functions, which can integrate various automation and sequential logic functions required for substation automation into one unit.

In terms of application scenarios, REF545 feeder terminals are mainly used for protection, control, measurement, and monitoring of medium voltage power grids. Its application scope covers the protection and control of medium-sized three-phase asynchronous motors and parallel capacitor banks used for reactive power compensation.

As for its protective function, in addition to basic protection, measurement, control, and status monitoring, the REF545 feeder terminal can also be used for monitoring power quality, and has functions such as synchronous detection, frequency protection, and capacitor protection. In addition, it also supports RTD/analog measurement modules, which can be used for temperature, current/voltage measurement, and mA signal output.

Overall, ABB's REF545 feeder terminal protection device has high flexibility, adaptability, and functionality, and is an indispensable and important equipment in the medium voltage power grid.