Metal Color Coated Electrical Armature Growler Tester, Color : Grey

An Armature Growler Tester is an essential electrical testing instrument designed to detect shorted turns, open circuits, and grounds in armature windings. The device consists of a coil wound on an iron core, connected to an alternating current source. When the growler is placed on an armature, it functions as the primary winding of a transformer, while the armature coils act as the secondary winding.

A thin steel strip, known as a feeler, is used to locate faults — when moved over a shorted coil, the strip vibrates strongly and emits a growling sound, indicating the presence of a short circuit. This simple yet effective method makes the growler an indispensable diagnostic tool in electrical motor repair and maintenance workshops.

• Detects shorted, open, and grounded coils in armatures

• Easy and reliable testing using electromagnetic induction principle

• Simple audible and vibrational indication via feeler strip

• Operates directly on standard AC mains supply (230V, 50Hz)

• Sturdy, portable, and maintenance-free design

• Suitable for a wide range of DC and AC motor armatures

• Durable construction for long service life

• Testing of DC and AC motor armatures

• Electrical motor rewinding workshops

• Industrial maintenance and repair departments

• Quality control in motor manufacturing units

• Educational and training laboratories