System grounding is obtained by grounding the neutral through resistance, through transformer and through effective or solidly grounding.
Equipment grounding is obtained by Grounding of non-current carrying metallic parts equipment. For instance no-current carrying parts include the following:
a. Motor body, switchgear metal enclosure, transformer tank, conduits of wiring etc.
b. Support structures, tower, poles etc. in the neighborhood of electrical circuits.
c. Sheath of cables.
d. Body of portable equipment such as iron, oven, etc.