Shunt Resistors

A shunt resistors is an instrument for measuring DC current. It is made based on the principle that a voltage is generated across the resistor when the DC current passes through the resistor.

Shunt resistors are generally used to extend the current range with a fixed low resistance. Shunt resistors is usually connected in parallel with the moving coil of the ammeter or galvanometer. There are two types connected inside and outside the meter.

For motor test measurement, multiple current shunts are often configured for one ammeter to solve the problem of ensuring the required measurement accuracy over a large measurement range. At this time, it is required that the rated voltage drop of all shunts used is consistent with the ammeter provided.