大電流傳感器通過將高電流轉(zhuǎn)換成可測量的電信號,提供了精確的電流測量結(jié)果,這對于電路的保護、控制和優(yōu)化至關(guān)重要。它們可以基于不同的原理和技術(shù),如歐姆定律的分流器、閉環(huán)反饋的電流互感器、磁場測量的開環(huán)電流傳感器以及磁光效應(yīng)的光學(xué)電流互感器等。
產(chǎn)品特點:
安裝方便
體積小,節(jié)省空間
抗干擾能力強
型號 | WCB73A-1000A/200mA ±1000A ±1500A ±200mA | WCB73A-2000A/400mA 士2000A ±3000A 士400mA | WCB73A-3000A/600mA ±3000A ±4500A 土600mA | ||
Type | |||||
額定測量電流Ip | |||||
Rated input | |||||
測量范圍 IPM | |||||
Measure range | |||||
額定輸出電壓 Vour | |||||
Rated output voltage | |||||
轉(zhuǎn)換比率Kw | 1:5000 | ||||
Conversion ratio | |||||
測量電阻R? (@±24V,@lm) | ≤80Ω | ≤30Ω | ≤13Ω | ||
Measure resister | |||||
總體精度 X @Ip | ±0.3% | ||||
Overall accuraty | |||||
次級線圈電阻 | 20Ω | ||||
Secondary coil resistance | |||||
電源電壓Vc | ±15VDC~±24VDC(±5%) | ||||
Supply voltage | |||||
靜態(tài)電流消耗Ic | ≤35mA (@±15V,lp=0) | ||||
Current consumption | |||||
零點失調(diào)電流 lo | 土0.2mA | ||||
Offset current | |||||
零點失調(diào)電流溫漂 | ≤±0.05mA/℃ | ||||
Offset current drift | |||||
線性度 εL | ≤0.1%FS | ||||
Linearity | |||||
頻帶寬度BW | DC-100 KHz | ||||
Frequency bandwidth-3db | |||||
響應(yīng)時間TR | <1us | ||||
Response time |