wound rotor ac asynchronous electric motor control panel

wound rotor ac asynchronous electric motor control panel

Μοντέλο:patent high voltage compensation device /controller / cabinet

1)Suitable motor:

75KW ~ 10000KW wound rotor asynchronous motor

2) Main function:

1.decrease the motor stator current 10%~20% ,also decrease winding temperature rising

2.improve motor power factor to over 0.95

3:reactive power compensation,reduce reactive power about 60%

4.reduce 20%~30% line loss and copper loss

5.protect motor and loaded equipment, enlong service life

6.raise motor over loading capacity

3)national patent WP characteristiντο

1)independent working system from motor, can adjust and maintenance without stop the motor

2)Automatic tracking rotor current ,for constant torque load and changing torque load

3) with function of malfucntion record, over current, low voltage, less phase, outer fault, communication failure, parameter mistake protetion

4)Standard RS485 communication connector

5) high power save ability,can take back the cost within half a year

4) Working principle

when motor work in load , rotor current is l2e, stator current is l1e, drawing as above

U: voltage vector; l1 stator current vector ; l2 rotor current vector; lm exciting current vector;

l1e stator current rated vector; l2e rotor current rated vector; Φ1 motor rated power angle factor

Φ2 after compensation power angle factor

5) Using place

Successfully widely used by Three Georges Project, national engineering designing institute, mining company, cement mill, stell mill,sugar factory,wood industry, chemical industry, city planning, and other place with big power motor and high electric consume place

6) Type selection