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安科瑞 師晴晴

江蘇安科瑞電器制造有限公司 江蘇江陰

1.項(xiàng)目概述 Project overview:

做鋰電池的公司，需要使用直流霍爾傳感器將直流電流傳輸?shù)?-20mA模擬信號(hào)輸出?？蛻粼诖_認(rèn)了輸入輸出和工作電源后，選擇了AHKC-EKA和AHKC-EKAA。

The company that do lithium batteries need to use DC Hall sensors to transmit DC current to the 4-20mA analog signal output. After confirming the input and output and working power, the customer chose AHKC-EKA and AHKC-EKAA.

2.開口式霍爾傳感器優(yōu)點(diǎn)Advantages of open type Hall sensor

與傳統(tǒng)直流電流計(jì)量一般采用分流器或互感器測(cè)量方法相比，開口式霍爾傳感器具有以下優(yōu)點(diǎn)：

1）原邊副邊絕緣強(qiáng)度高，可達(dá)AC 12kV隔離；

2）無插入損耗；

3）動(dòng)態(tài)性能好：響應(yīng)時(shí)間小于20us速度di/dt高于20A/us

4) 安裝時(shí)無需拆卸原邊電纜或母排，特別適用于不允許斷電設(shè)備的改造施工。

Compared with the traditional DC current measurement method generally adopted by shunt or transformer, the open-type Hall sensor has the following advantages:

1) High insulation strength of primary side and secondary side, up to AC 12KV isolation;

2) No insertion loss;

3) Good dynamic performance: the response time is less than 20uS and the tracking speed Di /dt is higher than 20A/ uS

4) There is no need to disassemble the original side cable or bus during installation. It is especially suitable for the transformation and construction of equipment that is not allowed to lose power.

3.產(chǎn)品選型Product Selection

4.應(yīng)用Application

霍爾電流傳感器主要應(yīng)用在工廠改造直流配電系統(tǒng)中，如電廠直流電源系統(tǒng)改造、光伏，UPS,電機(jī)系統(tǒng)等，它能將系統(tǒng)中原邊直流電流信號(hào)轉(zhuǎn)換成為標(biāo)準(zhǔn)DC± 5V或4-20mA輸出，起到了監(jiān)測(cè)和電氣隔離作用，可與多回路監(jiān)控儀表或其他電氣測(cè)量?jī)x表配套使用。

Hall current sensor is mainly used in factory transformation of DC power distribution system, photovoltaic, UPS, motor system, etc. It can convert the primary DC current signal in the system into a standard DC ± 5V or 4-20mA output, which plays a role in monitoring and electrical isolation , It can be used with multi-loop monitoring instruments or other electrical measuring instruments.

5 .結(jié)論Conclusion

開口式霍爾電流傳感器因其結(jié)構(gòu)簡(jiǎn)單、安裝方便、運(yùn)行可靠等良好的適用性，在直流系統(tǒng)應(yīng)用中發(fā)揮很大的作用。

Open-end Hall current sensor plays an important role in the application of DC system because of its simple structure, convenient installation, reliable operation .

參考文獻(xiàn) Bibliography

1.Solutions For Enterprise Micro-grid System 2021.04