Hebei Provincial Standard of the People's Republic of China
Latest
DB13/ 40-1991
Scope
This method is suitable for DC shunt motors under constant load operating conditions at the production site (other types of DC motors are similar to this, you can refer to this method for implementation)
DB13/ 40-1991 history
1986DB13/ 40-1991 On-the-spot measurement and calculation method of DC motor efficiency