Second, an overview FPW301 type active transmitter, FPK type reactive power transmitter and FPWK type of active / reactive power modular transmitter is able to test the active and reactive power into DC the output of the instrument, which is converted into a DC current or voltage is linearly proportional to the output, and can reflect the direction of the measured power transmission lines. They apply to the frequency of 50Hz, 60Hz and special variety of single-frequency, three-phase (balanced or unbalanced) line, with appropriate instructions instrument or device can be widely used in power plants and transmission and distribution system and its power measurements require a higher place. FPW301 FPWK type active / reactive power combination transmitter with the FPW / FPK same excellent performance. Just one set of input cable, it only takes a transmitter space, can be measured active and reactive power. Active power, reactive power corresponding to two DC outputs are isolated. So it is to achieve the active and reactive power measurement instrument supporting the most economical. FPW301 three, models, specifications: FPW301 --- Three-phase four-wire active transmitter FPK301 --- phase four-wire reactive power transmitter FPWK301- three-phase four-wire active / reactive power combination transmitter Specifications: Vn: Vn-scale input voltage range V1 100V 80 ~ 120V V2 220V 180 ~ 300V On: Output An: An input current measurement range A1 1A 0 ~ 1.2A A2 5A 0 ~ 6A 01 0 ~ ± 1mA 02 0 ~ ± 20mA 03 4 ~ 20mA 04 0 ~ ± 5mA 05 0 ~ ± 10mA 06 4 ~ 12 ~ 20mA Fn: Fn-scale input frequency range F1 50Hz 45 ~ 55Hz F2 60Hz 55 ~ 65Hz 07 0 ~ ± 1V 08 0 ~ ± 5V 09 0 ~ ± 10V Pn: Auxiliary power Pn range P1 AC100V P2 AC 220V FPW301 010 2 ~ 10V 011 1 ~ 5V 012 1 ~ 3 ~ 5V Notes: 1. "*" 900 phase shift husband reactive power transmitter frequency range Fn ±. 0.5Hz 2. Only FPW / FPK can dual output; 3. "*" Optional auxiliary power PD1: DC 110V, PD2: DC 220V - - - --- - Model Output Specifications auxiliary supply voltage range FPW301 current range input frequency FPW301