How To Measure Dc Current Using Shunt

This video requires two videos and ocde 1-Introduction to LCD1602 with I2C module 2-How to measure Current with Any Shunt Resistor Resources for this sketch and.

How to measure dc current using shunt. The humble current shunt is an excellent way to do just that. Now suppose that the range of current to be measured using this coil resistance is from 0-2 A. But in current measurements we apply resistor in series and if apply a resistor of 2 watts and passed the 3 Amps with 12 volts it will fry the resistor.

To keep power loss - and thus heat generation - to a minimum shunts must have a very low resistance value measurable in milliohms. The current through the shunt generates a voltage drop that is measured. This gives the resistance of the coil is about 0286.

It is operating in the principle of Ohms Law VIR. Shunt gives 75mV voltage across it when we pass the current of 50Amp. The main use of CT transformer based current sensing technique is in the Power grid due to very high current measurement capacity.

A resistor for current detection is inserted in a series and the voltage drop of the resistor is converted into a current value using Ohms law to perform current detection. You can assess the voltage drop across the shunt by integrating a current shunt within a circuit set up for measurement. This video show you step by step how to use any Shunt Resistor to measure DC current of up to 500 A using ArduinoWatch suing Shunt Resistor with LCD.

The techniques here apply to any microcontroller in fact devices like the ESP-32 or Seeeduino XIAO can actually perform better DC voltage measurements as they have analog to digital converters with a. Next measure the voltage across Rs and current through it separately using the multimeter. The entire current flows through the shunt and generates a voltage drop which is then is measured.

If we know two out of the three we can calculate the unknown. Calculations for 50Amps 75mV Shunt. Shunt Resistor Current Sensing Method.