ELECTRONIC SERVO-REGULATOR OF THE ELECTROMAGNETIC FIELD, TYPE: SREC-170/30R-PP

Application Fields

This product replaces the servo-regulator for electromagnetic fields used on 2100 HP diesel-electric locomotives. It is designed to regulate the current in the separate operating winding of the main generator, to control the stages of field weakening and to protect traction motors against overvoltage. It is also used for wheel slip control and for protection against excess current on motor groups.

Technical Specifications
Minimum supply voltage	110Vdc
Rated supply voltage	170Vdc
Output current(excitation)	3,6...28A depending on the position of the slider (0-40), supply voltage (170Vdc) and connected load resistance (5,4Ù)
Generator voltage in limiting operation	950V±3%
Maximum generator voltage which triggers overvoltage protection	1050V±3%
Protection on motor groups against excess current	1450Adc±1%
Storage of activated protection system for each motor group.
Manual or automatic resetting.
Two-level software-programmed wheel slip control depending on the current and voltage of the traction motors.
Net weight	13,6Kg±10%.