Terminal definition and wiring of bsp3 power monitor (power monitor)

BSP3 Series power monitor （ single-phase 、 three-phase current 、 voltage 、 Power monitor ）

 

Power monitoring instruments can directly replace conventional power transmitters and measuring instruments . As an advanced intelligence 、 Digital front-end acquisition components , The power meter has been widely used in various control systems （ Such as ：SCADA Data acquisition and monitoring control system 、IPDS Intelligent power distribution system and EMS Energy management system ） in . The instrument adopts AC Sampling Technology , It can measure the current in the power grid separately 、 voltage 、 power 、 Parameters such as power factor and electric energy , The magnification can be set through the panel membrane switch , belt RS485 Communications 、 Alarm output 、 Switching value input / Output and other functions .

BSP3 It's an intelligent digital sheet （ many ） Alternating current electric parameter measuring instrument , It can measure the voltage of up to three phases 、 electric current 、 Phase difference 、 power factor 、 Active power 、 Reactive power 、 Apparent power 、 Forward and reverse power 、 Four quadrant power , Automatically accumulate three-phase electricity and save it after power failure .

High speed is adopted 32 position ARM processor , It has strong timeliness 、 Outstanding features of high accuracy . preset 7 Fixed alert types （7 The four commonly used electrical test alarm items are ： Underfrequency 、 Overfrequency 、 Undervoltage 、 Overvoltage 、 Over current 、 overload 、 Low power factor .） and 2 User defined alerts , Alarm value and alarm output port can be configured freely . Built in large capacity memory and real-time clock , It can store electric quantity data and alarm data with time tag . The voltage and current of electrical measurement physical quantity adopt isolation transformer , The input and output ports adopt optical couplers , Self contained multiplex ACDC Isolate the power supply , The electric measurement signal input is realized 、 The general input and output ports are completely isolated from the processor , It has strong anti electromagnetic interference and excellent acquisition and control reliability . Built in large capacity super capacitor backup power supply and external power supply monitoring circuit , After the external power supply is interrupted, it can continue to operate autonomously and quickly save important operating parameters . The dot matrix screen makes the single screen display more intuitive and rich , The user operation interface is more humanized . Production of pure domestic components .

Terminal definition

 

Wiring diagram

 

 

Electrical measurement parameters ：
Rated frequency ： The three phases of this equipment use the same rated frequency parameters .
Power output ： How many pulse signals are output per kWh
Filter factor ： Collect voltage 、 electric current 、 The depth of filtering the data when the phase and other data , The larger the value, the more stable the data （ But the real-time performance will decline ）, Set to 1 Time means no filtering .

A Rated voltage of phase 、 Rated current 、 The coil turns ratio setting of the transformer .
The transformer magnification should be set to the actual transformer parameters , The correct real-time voltage can be obtained only when the transformer magnification is set correctly 、 Current value .
B Phase and C Rated parameters of phase 、 The transformer ratio parameter term is the same as A Exactly the same , It will not be repeated here .

A Phase electric measurement correction parameters .
The first 2 That's ok ： Voltage measurement correction parameters --- Voltage addition constant and multiplication constant
The first 3 That's ok ： Current measurement correction parameters --- Current addition constant and multiplication constant
The first 4 That's ok ： Voltage phase correction plus constant , Current phase correction plus constant
B Phase and C The correction parameter term of phase is the same as A Exactly the same , It will not be repeated here .