What does a drive isolation transformer do?

Drive Isolation Transformers are used to supply power to AC and DC Variable Frequency Drives. These transformers are used to magnetically isolate the incoming line from the motor drive while still providing a voltage change to match the required voltage of the SCR (Silicon Control Rectifier) Drive.

What is the difference between a drive isolation transformer and transformer?

The primary difference is that line reactors have a single winding per phase, whereas drive isolation transformers have two windings — a primary and a secondary — that are separated by an air gap. This air gap electrically isolates the VFD input from the power source.

What is K factor in isolation transformer?

K factor is defined as a ratio between the additional losses due to harmonics and the eddy current losses at 60Hz. It is used to specify transformers for non-linear loads. A transformer with K factor 9 should be specified when 100\% of the load is non-linear.

What is AC reactor?

AC reactor (AC choke) This is used to improve the input power factor of the inverter power supply, reduce harmonicsor suppress external surges.

What is isolated and non isolated power supply?

‘Isolated’ refers to a circuit separated from the AC line in order to prevent electric shock. A ‘non-isolated’ circuit is one not shielded from the AC power source, making electrocution possible.

What is a control circuit transformer?

A control transformer is a transformer that is used to step down the voltage to power the control devices of a circuit or machine. Residential heating, ventilating, air conditioning systems, and other machines use reduced voltage for the controls, thermostats, relays, and contactors.

What are gate drive transformers?

A gate drive transformer is a transformer that is optimized for transmitting rectangular electrical pulses with fast rise and fall times to activate or deactivate a switching device. It handles low power but high peak currents to drive the gate of a power switch.