How to measure the parameters of my hydrogenerator ?

Material needed : 

• Battery drill with 4mm hexagonal screw bit
• Multimeter to mease frequency and AC voltage 

Step 1 : 

Connect the cables of the multimeter to two random phases of the three phases line at the end of the hydrogenerator. ( the red cable to one of the phases, the black cable to another phase). Move the unused last phase away to avoid any short circuit.

Step 2 : 

Turn the generator shaft clockwise at a constant speed using the battery drill at a rather slow speed.( If you have 2 speeds on the battery drill, the max speed 1 will be fine)

Step 3 : 

Measure the AC voltage.

Step 4 : 

Maintain the same speed, and measure the frequency.

Step 5 : 

Send us the two values.