On 21 Apr, 18:58, Boltar wrote:
You can't run AC motors using electronics designed for a DC system.
Though why they feel the need to change the traction package on
perfectly servicable still fairly new trains is another matter. I
can't imagine them saving 100M in electricity bills before thr trains
are life expired.

Basically, because the DC motors weren't very reliable in the first
place and are now apparently completely f***ed - the choice isn't
"leave them or replace with AC", it's "persuade someone to build new
obsolete-but-not-knackered DC motors or replace with AC".

--
John Band
john at johnband dot org
www.johnband.org