"Illustration showing the path of leakage current caused by ground due to damp insulation." —Croft 1920

Current Leakage Around Generator

"Illustration showing the path of leakage current caused by ground due to damp insulation." —Croft…

Motor insulated on a parallel timber base.

Insulated motor

Motor insulated on a parallel timber base.

Illustrating method of measuring insulation resistance

insulation

Illustrating method of measuring insulation resistance

Testing the insulation resistance of an armature.

insulation resistance

Testing the insulation resistance of an armature.

"Illustrating method of measuring insulation resistance." —Croft 1920

Measuring Insulation Resistance

"Illustrating method of measuring insulation resistance." —Croft 1920

"Testing the insulation resistance of an armature." —Croft 1920

Measure Armature Insulation Resistance

"Testing the insulation resistance of an armature." —Croft 1920

"Testing the insulation resistance of a motor or generator from its winding to ground." —Croft 1920

Measure Insulation Resistance of Motor

"Testing the insulation resistance of a motor or generator from its winding to ground." —Croft…

Testing the insulation resistance of a motor or generator from its winding to ground.

Motor

Testing the insulation resistance of a motor or generator from its winding to ground.