@@mbrproductions160 We already know that the Green Line Type 8s have Adtranz/Bombardier MITRAC IGBT-VVVF with type 1508C 3-phase AC induction motors (which is also used on New York City subway R142A, R143 and R188, and MARTA CQ310, CQ311 and CQ312, and type 1508C was discontinued after the last R188 carriage was built), and the Red Line 1800 series have General Electric GTO-VVVF like the New York City subway R110B, Los Angeles Metro Rail A650 and Washington Metro 1000 series. The CRRC Red and Orange line trains in case you haven't noticed yet use Mitsubishi IGBT-VVVF.
The reason, I believe, was that by the ocean, the 3rd rail could get iced up. IIRC, the change from overhead to 3rd rail happened in the last station in the tunnel. (Wow, it's been about 60 years since I experienced the change - taking the Blue Line to the beach.
Wow, I miss Boston. I always knew I was on the right train by its'
color. Blue, green, red, and orange.
U see that green light when the train is using the pantograph the green light turns off but when the third rail comes the green light comes back on
12 years and never noticed the light changes, only went by visual raising and sound
4:20 that tells me that the Blue Line 0700 series use Siemens IGBT-VVVF inverter control traction system, with 3-phase AC induction motors!
I didn’t know that, thanks for the cool information!
@@mbrproductions160 We already know that the Green Line Type 8s have Adtranz/Bombardier MITRAC IGBT-VVVF with type 1508C 3-phase AC induction motors (which is also used on New York City subway R142A, R143 and R188, and MARTA CQ310, CQ311 and CQ312, and type 1508C was discontinued after the last R188 carriage was built), and the Red Line 1800 series have General Electric GTO-VVVF like the New York City subway R110B, Los Angeles Metro Rail A650 and Washington Metro 1000 series. The CRRC Red and Orange line trains in case you haven't noticed yet use Mitsubishi IGBT-VVVF.
IFBT-VVVF inverter control traction system
@@galexygamer2011-jv9fs G, not F.
@@TheSearleFamily123 Ohh
Next time you should get them to honk the horn because it sound beautiful
It does sound good, but subway drivers don’t usually do that unless they are running out of service through a station
it’s the clearest horn among the lines, and most used
oh! I hadn't noticed there being two power supplies for that line(?)
Yeah, they use Pantograph from Wonderland To Airport (Above Ground) and Third Rail from Airport to Bowdoin (Underground)
@@mbrproductions160 and the supply voltage on both is DC 600V.
its sounds like a sound effect out of a horror movie when it comes.
Like it because it goes fast
I love the Blue Line too
What town is this and what is these trains called?
This is Boston, The subway is called MBTA
Why do they use two different power supplies?
thats because of the low clearence of the pantograph in tunnels
@@joegage5893 what about using third rail on the surface?
@@QuarioQuario54321 well 20 years ago the overhead wire fell due to storms so instead they put a third rail for less maintence i think
@@joegage5893 nope, it’s electrical issues due to flooding
@@joegage5893 no, not even close.
Seems the Blue Line rollingstock can be operated in both the third-rail system and the overhead power supply system. That's cool.
Correct, thats why many transit enthusiasts take interest in it!
one of only three in the country, Cleveland’s RTA has one and MetroNorth New Haven Line has the other
The reason, I believe, was that by the ocean, the 3rd rail could get iced up. IIRC, the change from overhead to 3rd rail happened in the last station in the tunnel. (Wow, it's been about 60 years since I experienced the change - taking the Blue Line to the beach.
MBTA Siemens 0700