A current transformer is a type of transformer that is used to measure or monitor the alternating current (AC) flowing in an electrical circuit. It works on the principle of electromagnetic induction, where the primary winding carries the current to be measured and the secondary winding provides a reduced current proportional to the primary current.
A current transformer works by placing the primary winding around the conductor that carries the current to be measured. The primary winding induces a magnetic field in the core of the transformer, which in turn induces a current in the secondary winding. The secondary current is proportional to the primary current and can be measured using an ammeter or other measuring device.
The primary purpose of a current transformer is to measure or monitor the current flowing in an electrical circuit. It is commonly used to provide a safe, low-current measurement of high currents, as well as to isolate the measuring instrument from the high-voltage circuit.
Gauge factor is a term used to describe the sensitivity of a strain gauge. It is a dimensionless number that represents the change in electrical resistance of the gauge divided by the original resistance, per unit of strain. In other words, it is a measure of how much a strain gauge's resistance changes in response to applied strain.
Gauge factor is not directly related to current transformer. However, it can be used to calculate the strain on the primary winding of a current transformer, which can then be used to determine the current flowing in the circuit. This is because the primary winding of a current transformer experiences strain due to the magnetic forces induced by the current passing through it.