SCYC51010 58052515G 电流变送器 分直流电流变送器

电流变送器分直流电流变送器和交流电流变送器两种。交流电流变送器是一种能将被测交流电流转换成按线性比例输出直流电压或直流电流的仪器，产品广泛应用于电力、邮电、石油、煤炭、冶金、铁道、市政等部门的电气装置、自动控制以及调度系统。交流电流、电压变送器具有单路、三路组合结构形式，其特点为：

1、准确度高（典型：0.2% 最好0.05%）；

2、整个量程范围都有极高的线性度；

3、集成化程度高，结构简单，优良的温度特性和长期工作稳定性，使变送器免于定期校验。

直流电流变送器将被测信号变换成一电压，经HCNR200/201线性光耦直接变换成一个与被测信号成极好线性关系并且完全隔离的电压，再经恒压（流）至输出。具有原理非常简单，线路设计精炼，可靠性高，安装方便等优点。

电流变送器可以直接将被测主回路中的交流电流转换成按线性比例输出的直流4～20mA（通过250Ω电阻转换成直流1～5V或通过500Ω电阻 转换直流2～10V）恒流环标准信号，连续输送到接收装置（计算机或显示仪表）。

电流变送器原副边高度绝缘隔离，有两线制和三线制的输出接线方式。三线制变送器有辅助工作电源+24V的正端、负端和信号输出端；

电流变送器具有精度高，体积小、功耗小、频响宽、抗干扰等特性。国内首创4种补偿措施和6大全面保护功能，两线端口防感应雷能力强，具有雷击波和突波的保护能力等优点。特别适用发电机、电动机、智能低压配电柜、空调、风机、路灯等负载电流的智能监控系统。

电流变送器超低功耗，单只静态时0.096W，满量程功耗为0.48W，输出电流内部限制功耗为0.6W。

SCYC51010 58052515G 电流变送器 分直流电流变送器

Current transmitters are divided into DC current transmitters and AC current transmitters. Ac current transmitter is a kind of instrument that can convert the measured AC current to output DC voltage or DC current in linear proportion. The products are widely used in electrical devices, automatic control and dispatching systems of electric power, post and telecommunications, petroleum, coal, metallurgy, railway, municipal and other departments. The AC current and voltage transmitter has a single and three-way combination structure, which is characterized by:

1, high accuracy (typical: 0.2% preferably 0.05%);

2, the whole range has a high linearity;

3, high degree of integration, simple structure, excellent temperature characteristics and long-term stability, so that the transmitter is free from regular calibration.

The DC current transmitter converts the measured signal into a voltage, which is directly converted into an excellent linear relationship and completely isolated voltage with the measured signal by HCNR200/201 linear optocoupler, and then through constant voltage (current) to the output. It has the advantages of simple principle, refined circuit design, high reliability and easy installation.

The current transmitter can directly change the AC current flow in the main loop under test into a linear proportional output of DC 4 ~ 20mA (converted into DC 1 ~ 5V by 250Ω resistance or DC 2 ~ 10V by 500Ω resistance) constant current ring standard signal, continuous transmission to the receiving device (computer or display instrument).

The primary side of the current transmitter is highly insulated and isolated, and there are two wire and three wire output wiring modes. The three-wire transmitter has a positive end, a negative end and a signal output end of the auxiliary power supply +24V;

The current transmitter has the characteristics of high precision, small volume, low power consumption, wide frequency response and anti-interference. The first 4 kinds of compensation measures and 6 comprehensive protection functions in China, the two-wire port has strong anti-induction thunder ability, and has the advantages of lightning strike and surge protection ability. Especially suitable for generators, motors, intelligent low-voltage distribution cabinets, air conditioners, fans, street lights and other load current intelligent monitoring system.

Current transmitter ultra-low power consumption, single static time 0.096W, full scale power consumption of 0.48W, output current internal limited power consumption of 0.6W.