FS Class E.380

The FS Class E.380 was a small class of three-phase electric locomotive used in Italy, introduced in the 1900s.

Class E.380
Type and origin Power type electric Builder Ganz Build date 1905 Total produced 4
Specifications Configuration: ​  • AAR 1-C-1  • UIC 1′C1′ Gauge 1,435 mm (4 ft 8 ^1⁄2 in) standard gauge Loco weight 64.6 t (63.6 long tons; 71.2 short tons) Electric system/s Three-phase 3.6 kV 16.7 Hz Catenary Current pickup(s) Bow collector
Performance figures Maximum speed 71.2 km/h (44.2 mph) Power output 1,250 kW (1,680 hp)
Career Operators FS First run 1906 Retired unknown

Overview

The locomotives, which entered in service in a small batch of 4 units, were characterized by a central cabin with two large hoods at each end. Built by Ganz, they had a similar mechanical equipment to the E.360 type. The E.380s showed a series of problems, so that two were refurbished as E.390.

Technical details

The two fixed speeds were obtained by changing the motor connections. For high speed the motors were connected in parallel. For low speed the two motors were "cascaded" by connecting the rotor of one motor to the stator of the other. This caused both motors to run at half speed.[1]

Withdrawal

The low power output at the highest speed, and the limitation of use to only two fixed speeds (due to the control arrangement of the three-phase motors) led both classes to be retired after a short service period.

References

1. Adorno, Silvia (September 2010). "Il motore trifase asincrono, dalle E.330 alle E.471" (in Italian).