Power Control (Leaving Cert Engineering): Flashcards
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Transformer definition
Transformer definition
Electrical device that converts AC voltage levels for welding applications
Type of current transformers use
Type of current transformers use
Alternating current (AC)
Typical mains voltage input to transformer
Typical mains voltage input to transformer
220-240 volts
Three main components of a transformer
Three main components of a transformer
Primary coil, secondary coil, iron core
Function of iron core in transformer
Function of iron core in transformer
Provides path for magnetic field between coils
Operating principle of transformers
Operating principle of transformers
Electromagnetic induction
How coils are linked in a transformer
How coils are linked in a transformer
Magnetically linked, not electrically connected
Step-down transformer winding characteristic
Step-down transformer winding characteristic
More primary windings than secondary windings
Voltage change in step-down transformer
Voltage change in step-down transformer
Higher input voltage, lower output voltage
Current change in step-down transformer
Current change in step-down transformer
Lower input current, higher output current
AC frequency in UK
AC frequency in UK
50Hz (50 cycles per second)
AC waveform pattern
AC waveform pattern
Sinusoidal