Voltage + current sensor

Other Hardware Sensors
1

HI all

i need help
i need the names of :

voltage AC sensor range(150-300) or more .
vloltage DC sensor range (220).
current AC sensor range measurment high current.
current dc sensor range measurment high current.

and thanks

of you have more than one name i will be greatful .

power factor sensor .

can i just post a code to meausment the power factor or i need the zero crossing detector.

thanks

2

I have been researching this for the past week.

Here is an ac voltage sensor https://www.amazon.com/SMAKN®-Voltage-Transformer-Module-Active/dp/B01CN7QFWO

it only goes to 250v, but with a step down transformer like this you can read up to 500v, but you lose accuracy.

https://www.amazon.com/Seven-Star-50-Watt-Converter-Adapter/dp/B00SNBHDRQ/ref=sr_1_6?s=electronics&ie=UTF8&qid=1478998853&sr=1-6&keywords=220+to+110v+converter

I have no idea how to safely read 200v dc... that is really high

reading dc

for the current sensor, search for Hall effect current sensor on ebay. They go up to 300A

Here is the library that will handle most of the power reading code. EmonLib/EmonLib.h at master · openenergymonitor/EmonLib · GitHub

good luck

3

reading DC can simply be done with a resistor devider.(google)

choose 2 resistors which devide the voltage such that over the 2nd resistor you will have a voltage of 0-5v. also make sure that your impedance is high enough not to draw much current trough the resistors burning hem or pulling your supply voltage down rendering the measurement ineffective.

standard voltage sensors for arduino do exactly this. 2 resistors chosen so that you can measure up to 25vdc. if going over 25v the output will be >5v blowing your Analog input. choose different resistors solves this puzzle for your specific power supply.