Motor is special, connected by precise lead raid with seat, to ensure concentricity.
3-phase power supply, through 3-phase insulation transformer, low-voltage power supply, for human safety.
Speed and power measurement by high-performance precise mechanical servomotor, little friction, with high sensitivity and linearity.
The instrument is a patented product of Yalong, to measure rotation speed, torque and mechanical power precisely, shown by 3 sets of 3 1/2 digital numeric tubes, compact, nice and efficient.