Calibration of energy meter.

Anupam Sharma

Other Parts Discussed in Thread: MSP430F427, TIDM-TWOPHASEMETER-I2040, EVM430-I2040S

My Controller is MSP430F427 used in energy meter . I am facing problem to calibrate Current , Voltage and Phase Shift. What is the best method of calibration of Voltage and Current and Phase Shift with High accuracy .

over 10 years ago

0 Anupam Sharma over 10 years ago

Prodigy 50 points

I am using MSP430 F427 Controller . I need to calculate the frequency of voltage signal . My ADC setting has oversampling ratio 256 and Modulation frequency 1048576 Hz and No. of samples 4096.

0 Anupam Sharma over 10 years ago

Prodigy 50 points

0 Jace H over 10 years ago in reply to Anupam Sharma

TI__Guru 56685 points

Hello Anuparm,

We do offer an Energy Library that can help with this, but I am unsure if it is available for this part. I know it is not the same part, but the following resources have parts with similar modules that can help you with this.

www.ti.com/tool/TIDM-TWOPHASEMETER-I2040
www.ti.com/tool/evm430-i2040s
www.ti.com/.../TIDM-SINGLEPHASEMETER
www.ti.com/.../TIDM-DUALPHASESOM
www.ti.com/.../TIDM-THREEPHASEMETER-F449
www.ti.com/.../TIDM-ROGOWSKITHREEPHASE-F47197
www.ti.com/.../TIDM-SINGLEPHASEMETER-FE427A

Regards,
JH

0 Mars Leung over 10 years ago in reply to Anupam Sharma

TI__Intellectual 960 points

First of all you need to have instruments that can generate calibration voltage and current and a reference meter that can give you accurate reading of this calibration voltage and current.

For technique of calibration please go to this page

www.ti.com/.../TIDM-SERVER-PWR-MON

doiwnload the user guide and go to appendix C. The appendix talks about the technique of calibration. You can skip the calibration of line resistance and EMI capacitance.

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Calibration of energy meter.