The 3 Phase Master Controller is designed as per CLW Specification No: CLW/ES/3/0031 ALT‐I. It
is used in WAG9,WAP7 & WAP 5 class of 3 Phase electrical locomotive. The Master Controller is
the heart of the locomotive and allows the loco pilot.
a. To select the drive direction of the locomotive i.e. forward or reverse. b. Regulate the tractive & breaking effort of the locomotive. The master controller has been designed indigenously by using the latest angle position transmitter along with field proven cam switches. The 3 phase master controller complies with IEC60571 & 60077.
There are three major functional components in the Master Controller
a. Drive Direction Selector
b. Drive Break Handle
c. Angular Position Transmitter.
3 Phase Loco Master Controller is an advanced electronic device designed for efficient and precise control of three-phase locomotives, ensuring smooth operation and safety in rail transport systems.
Electro Mechanical product with indigenized position sensor.
Approved by CLW vendor
More than 3000 Nos of master controller currently in field in the entire Indian railways.
Indigenous designed forward and reverse switch.
Indigenous designed Angle Position Transmitter.
