Characteristics of 7-ton overhead electric locomotive and applicable scope of overhead electric locomotive

Description :

　　A new product of 7-ton overhead electric locomotive, with two power supply voltages of 250V and 550V, and a reduction gearbox with dual stage gear transmission of cone and cylinder. It has the characteristics of thick side panels, good rigidity, long service life of gears, strong traction, and fast speed. Due to the use of V-shaped rubber shock absorbers, it has good buffering, shock absorption, noise reduction performance, and good power passing performance in small bends.

　　Principle of 7-ton overhead electric locomotive

　　The working process of overhead electric locomotives involves the high-voltage AC power being reduced and rectified by the traction converter, with the positive pole connected to the overhead line and the negative pole connected to the railway track. The pantograph on the locomotive comes into contact with the overhead line, introducing current into the car, and then entering the traction motor through the air automatic switch, controller, and resistance box to drive the motor to operate. The electric motor drives the wheels to rotate through the transmission device, thereby pulling the train to travel. The current flowing out of the electric motor flows back to the substation through the track.

　　Technical parameters of 7-ton overhead electric locomotive

　　Curb weight: 7T

　　Track gauge: 600mm; 762mm; 900mm

　　Traction force: 15.09KN

　　Speed: 11 Km/h

　　Traction force: 17.2 KN

　　DC voltage: 550V

　　Traction motor: 24KW x 2 units

　　Total length: 4470mm

　　Total width: 1095mm; 1257mm; 1395mm

　　Height from rail surface to ceiling: 1550mm

　　Traction height: 320mm; 430mm

　　Wheelbase: 1100mm

　　Track width: φ 680mm

　　Receiver working height: 1800mm~2000mm

　　Curve radius: 7m

　　Speed regulation method: chopper resistor

　　Braking method: mechanical electric braking

　　Note: Primary transmission

　　zmjt055

AfterSalesService :

• 7-ton overhead electric locomotive