Before revision: The voltage across the shunt is proportional to the current flowing through it, and so the measured voltage can be scaled to directly display the current value.Manual of Electric Instruments, General Electric, 1949, pages 8–9Terrell Croft, American Electricians' Handbook, McGraw-Hill, 1948 p. 70 Shunts are rated by the maximum current and voltage drop at that current.
After revision: The voltage across shunt is proportional to the current flowing through it, and so the measured voltage can be scaled to directly display the current value.Manual of Electric Instruments, General Electric, 1949, pages 8–9Terrell Croft, American Electricians' Handbook, McGraw-Hill, 1948 p. 70 Shunts are rated by the maximum current and voltage drop at that current.