The S3 (T) RHR, S3-RHR, N3-RHR type reactive power/reactive energy combination transmitter is an instrument that can simultaneously measure the reactive power and reactive energy of a system. It only requires one set of input signals to convert the reactive power of the system into a DC signal and the reactive energy into a high linear proportional pulse output. When the reactive power is output in current mode, a common ground current output is used, which is more convenient for wiring with the secondary system and is a transmitter with high performance price ratio
Overview
S3(T)RHR,S3-RHR,N3-RHRType reactive power/Reactive power combinationA transmitter is an instrument that can simultaneously measure the reactive power and reactive energy of a system. It only requires one set of input signals to convert the reactive power of the system into a DC signal and the reactive energy into a high linear ratio pulse output. When the reactive power is output in current mode, a common ground current output is used, which is more convenient for wiring with the secondary system and is a transmitter with high performance price ratio. It is suitable for frequencies of50Hzor60HzAnd special frequency three-phase three wire (balanced or unbalanced) systems, as well as the measurement of reactive power energy for automatic monitoring in non electric energy billing systems, andThe relative error of reactive power measurement accuracy for S3 (T) and N3 series is less than or equal to 0.5% and 0.1%, respectively.
feature
This series of products has high measurement accuracy, good conversion performance, good temperature characteristics, and lightning protection function. The ability to measure reverse reactive energyIt has long-distance transmission capability (4~20mA, 500 Ω), fixed in accordance with DIN46277, and can be installed on 35mm aluminum rails.
Selection:

Example of filling in model and parameters:
(1)S3(T)-RHR-3-555A43CB
0.2 Three phase three wire reactive power/Reactive power transmitter
Input nominal current:5A;
Input nominal voltage:100V;
Standard output power⑤:866Var;
Input signal frequency:50±5Hz;
output range(power):4-20mAcorresponding:0-866Var;
output range(electric constant):10000 A pulse/kWh
Output type: Voltage free pure contact(Optocoupler collector open circuit output);
Auxiliary power supply:AC220V.
(1)N3-RHR-3-155V23CB
0.5 Three phase three wire reactive power/Reactive power transmitter
Input nominal current:1A;
Input nominal voltage:100V;
Standard output power⑤:170W;
Input signal frequency:50±5Hz;
output range(power):0-5Vcorresponding:0-170W;
output range(electric constant):10000 A pulse/kWh
Output type: Voltage free pure contact(Optocoupler collector open circuit output);
Auxiliary power supply:AC220V.
note① The value within the output range () is the calibrated value for forward and reverse power output.
② The output range (number of pulses) of the active energy transmitter is calibrated at 1kVarh.
③ Select the appropriate output type for the system, see active power annotation: item ②.
④ The calibration of system power can be found in the previous active power annotation: item ②.
⑤ Reactive power can be measured separately for inductive and capacitive loads, such as constant load characteristics
Please specify in the contract.
⑥ The three-phase four wire system has no reverse power output.
⑦ If the user requires other special calibrations, please specify the parameter values in the contract