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產(chǎn)品介紹

基本信息:REA101-AAAG ABB 電弧保護(hù)繼電器 庫(kù)存現(xiàn)貨

電弧保護(hù)繼電器REA101及其擴(kuò)展單元REA103和REA105設(shè)計(jì)用于中低壓開(kāi)關(guān)柜的保護(hù)。中央單元類型REA101獨(dú)立或與擴(kuò)展單元REA103和REA105一起工作。這些擴(kuò)展單元可以增加傳感器纖維的數(shù)量，從而擴(kuò)大要保護(hù)的區(qū)域。

在電弧情況下，通過(guò)檢測(cè)檢測(cè)電弧的傳感器光纖所覆蓋的區(qū)域，可以快速定位故障位置。擴(kuò)展單元REA103和REA105的設(shè)計(jì)幾乎相同。單元之間的主要區(qū)別在于，REA105提供了兩個(gè)快速跳閘輸出，能夠打開(kāi)，例如，總線耦合器或雙工饋線的兩個(gè)斷路器。這樣就實(shí)現(xiàn)了選擇性脫扣。電弧保護(hù)繼電器REA101具有兩個(gè)輸出端口，每個(gè)輸出端口最多可連接5個(gè)擴(kuò)展單元。

特性

·三相過(guò)流功能

·用于電弧檢測(cè)的環(huán)形或徑向傳感器光纖·2高速半導(dǎo)體輸出跳閘

·跳閘繼電器輸出

·2個(gè)RJ45接口，用于連接擴(kuò)展單元

·2光連接器快速開(kāi)/關(guān)信號(hào)傳輸之間的中央單位·斷路器故障保護(hù)，即高電平斷路器延遲輸出

·自我監(jiān)控單元，用于監(jiān)控傳感器光纖，工作電壓和中央單元和擴(kuò)展單元之間的電纜·必須始終遵守國(guó)家和地方的電氣安全法規(guī)。

·即使斷開(kāi)輔助電壓，連接器上也可能出現(xiàn)危險(xiǎn)電壓。設(shè)備的框架必須小心接地。

·只有合格的電工才能進(jìn)行電氣安裝。

·傳感器纖維必須按照傳感器纖維制造商給出的說(shuō)明進(jìn)行處理。

·設(shè)置和配置更改必須在斷開(kāi)輔助電源電壓(Uaux)的情況下完成。如果改變所連接的電源電壓，可能會(huì)發(fā)生故障。

Product introduction

Basic information :REA101-AAAG ABB arc protection relays in stock

Arc protection relays REA101 and its expansion units REA103 and REA105 are designed for protection of low and medium voltage switchgear. The central unit type REA101 works alone or with the expansion units REA103 and REA105. These expansion units can increase the number of sensor fibers, thereby expanding the area to be protected.

In the case of an arc, the fault location can be quickly located by detecting the area covered by the optical fiber of the sensor that detects the arc. The expansion units REA103 and REA105 are almost identical in design. The main difference between the units is that the REA105 offers two fast trip outputs that are capable of opening, for example, two circuit breakers for a bus coupler or duplex feeder. This enables selective tripping. The arc protection relay REA101 has two output ports, each of which can be connected to up to 5 expansion units.

peculiarity

· Three-phase overcurrent function

· Ring or radial sensor fiber for arc detection ·2 high-speed semiconductor output trip

· Tripping relay output

·2 RJ45 ports for connecting expansion units

·2 Optical connector fast on/off signal transmission between the central unit · circuit breaker fault protection, that is, high level circuit breaker delay output

Self-monitoring units for monitoring sensor fiber, operating voltage, and cables between the central and expansion units must always comply with national and local electrical safety regulations.

· Dangerous voltages may occur on the connector even if the auxiliary voltage is disconnected. The frame of the device must be carefully grounded.

· Only qualified electricians can perform electrical installation.

· Sensor fibers must be handled according to the instructions given by the sensor fiber manufacturer.

Setup and configuration changes must be made with the auxiliary power supply voltage (Uaux) disconnected. Failure may occur if the connected power supply voltage is changed.

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