MCP3909RD-3PH1 Microchip Technology, MCP3909RD-3PH1 Datasheet - Page 12

• Manufacturer Part Number: MCP3909RD-3PH1
• Description: REF DESIGN MCP3909 3PH ENGY MTR
• Manufacturer: Microchip Technology

Specifications of MCP3909RD-3PH1

• Main Purpose: Power Management, Energy/Power Meter
• Embedded: No
• Utilized Ic / Part: MCP3909, PIC18F2520, PIC18F4550
• Primary Attributes: 3-Ph, 220 VAC, In Case, LCD, USB, GUI
• Secondary Attributes: Opto-Isolated Interface for Safety
• Operating Voltage: 220 V
• Operating Current: 5 A
• Description/function: Energy Meter
• For Use With/related Products: MCP3909
• Lead Free Status / RoHS Status: Not applicable / Not applicable

MCP3909 / dsPIC33F 3-Phase Energy Meter Reference Design
1.3
DS51723A-page 12
POWER CALCULATIONS
A summary of all the calculations performed by this energy meter are summarized
below.
Chapter 3. “Firmware” provides an explanation on the firmware implementation,
Appendix C. “Power Calculation Theory” is included to show the theory behind this
firmware.
• Power Grid Frequency
• RMS Voltage Of Each Phase
• RMS Current Of Each Phase
• RMS Neutral Current
• Active Power Of Each Phase
• Reactive Power Of Each Phase
• Apparent Power Of Each Phase
• Power Factor Of Each Phase
• Fundamental Active Power Of Each Phase
• Fundamental Reactive Power Of Each Phase
• Harmonic Active Power Of Each Phase
• Harmonic Reactive Power Of Each Phase
• Total Active Power:
• Total Reactive Power:
• Total Apparent Power:
• Total Power Factor
• Phase Missing / Line voltage sag detection and alarm
• Total Active Energy:
• Positive/negative Active Energy
• Positive/negative Reactive Energy
• Four-quadrant Reactive Energy
• Voltage/current Harmonic Content Of Each Phase
- The Algebraic Sum Of Active Power Of Three Phases
- The Algebraic Sum Of Reactive Power Of Three Phases
- The Algebraic Sum Of Apparent Power Of Three Phases
- The Algebraic Sum Of Positive/negative Active Energy
© 2009 Microchip Technology Inc.