As a part of Project customer was using one Line, Motor and Auxiliary (LMA) converter in their DM(MET/OS/LD) class cars and one Line, Motor and Auxiliary/Motor (LMM/A) converter in M car.
Due to the weight distributions and heavy weight of LMA we have a constrain in moving LMA boxes from middle of the car.
When using 400mm2 cables achieving bend radius is the big challenge at bolster location inside the cable trays and close to LMA converter
Harness routes between LMA converter and various electrical equipment’s in underframe.
While arranging cables in underframe cable trays, need to follow EMC guidelines, cable bend radius and easy to access respective electrical equipment's (No crisscross).
Underframe equipment layout.
Underframe harness layouts.
3D models of LMA converter and electrical standard equipment's
Utilised old cable trays from donor projects.
Routed cables within the cable trays and done investigation to identify best dropout locations for various electrical equipment’s.
Cable arrangements were reviewed with EMC team and approved for use.
Designed the support brackets to route harness to and from LMA converter, where the brackets are structurally accepted.
Ferrite clamps and Toroidal tape core are used to observe magnetic wave lengths/Sound which crated at converters.
Harness are routed between electrical equipment's and LMA, LMM/A.
All harness achieved respective standard bend radius.
Cost saving - Utilised old cable trays by altering harness routes.
No crisscross in cables at LMA and LMM/A converters, so easy to identify/assemble cable to LMA or LMM/A.
Subscribe to our newsletter
Follow us on
We are Quest Global. We’re in the business of engineering, but what we’re really building is a brighter future. It’s not just what we do, but why we do it that makes us different. We believe engineering has the unique opportunity to solve the problems of today that stand in the way of tomorrow. For more than 25 years, we have strived to be the most trusted partner for the world’s hardest engineering problems. As a global organization headquartered in Singapore, we live and work in 17 countries, with 67 global delivery centers and offices, driven by 17,500+ extraordinary employees who make the impossible possible every day.
Quest Global delivers world-class end-to-end engineering solutions by leveraging our deep industry knowledge and digital expertise. By bringing together technologies and industries, alongside the contributions of diverse individuals and their areas of expertise, we are able to solve problems better, faster. This multi-dimensional approach enables us to solve the most critical and large-scale challenges across the aerospace & defence, automotive, energy, hi-tech, healthcare, medical devices, rail and semiconductor industries.