The amount of reactive energy register is decreased while I expect it to be increased.I use a reference meter" to ensure the sign of reactive energy.what should I do?Could my stpm32 chip be fake?
Hello @SBEN .2 I changed the chip with a new one that I bought from another online shop.All problems asked, were resolved.The old chip was fake. Best regards.
Hello @SBEN .2 I am sure because the sign of active power is correct and the value of active energy register is increased as i expect.But the value of reactive energy register is decreased and the sign of reactive power is negative.The load i was ap...
Hello @SBEN .2 ,Thank you for your answer.The value of the active and reactive energy is correct but the sign of reactive energy is wrong.I tested the chip in 230V and 10A and +45 degrees phase difference with a reference meter.But the problem still ...
