Background and overview
415 series built by Japanese National Railways (JNR) in 1986 have some
improvement including stainless body construction and were classified into
-1500 subseries. 415-1500 series EMU were delivered to the Joban line and
Kyushu region.
At the splitting of JNR into the privatized JR companies, JR East and JR
Kyushu received 415-1500 series in 1987.
Car body
They have 2950mm wide body, incorporating light weight stainless construction.
They have the blue waistline and headline bands running the length of each
car below and above the windows. Cab ends are covered with a Fiber Reinforced
Plastics (FRP) panel and electrolytic colouring aluminum black plates are
fitted above and below windscreens. They are equipped with three 1300mm
wide double-leaf automatic sliding doors. Drop windows and door case windows
are fitted between the doors. Door operating equipments are TK4J fitted
under the seatings. Traditional roller-binding destination screens are
fitted on the body. An air conditioner, AU75G, rated at 42,000kcal is fitted
on the centre of the roof. Forced ventilators are fitted on the both side
of the air conditioner. End cars are not equipped with the automatic jumper
coupler to ease rush-up operations.
Bogies
Their bogies are DT50C/TR235C featuring bolster-less secondary air suspension,
corn-shaped multilayered rubber spring journal supporting system, and double
collar sealed roller bearing for improved stability at high speed. Traction
device of the bogie is multilayered rubber spring.
These modification of their bodies and bogies made their total mass 4-6
tons lighter.
Traction unit and auxiliary equipments
Eight powerful series-wound brushed DC traction motors, MT54D, with a power
output of 120kW are controlled by the armature-resistance traction control
system, CS12G, fitted to intermediate cars, Moha415-1500. Class Moha414-1500
vehicles are equipped with a self-cooling traction rectifier, RS49, and
a traction transformer, TM20, under their floor. Class Moha414-1500 vehicles
are also equipped with a diamond shaped current pickup, PS16H, and an air-blast
circuit-breaker, CB103A on the roof. Class Kuha411-1600 vehicles are equipped
with a motor generator, DM106, with a power output of 190kVA and an air
compressor, MH3075A-C2000M, under the floor. 415-1500 series adopt electromagnetic
straight air brake. The rheostatic brake is available.
Accommodation
Seating is longitudinal throughout. The air conditioning duct is fitted above the ceiling in order to improve interior design and the outlets of cool air are slit shape. All vehicles are not equipped with cross flow air blowers on their ceiling. Although vehicles delivered to the Johban line employ box-shaped loud speakers fitted under the ceiling, vehicles delivered to Kyushu employ the ceiling embedded loud speakers.
Improvement
JR East continued to deliver additional 415-1500 series vehicles, employing
the ceiling embedded loud speakers and the luggage rack assembled by stainless
pipes, although former 415-1500 series vehicles employ the aluminum wire-netting
luggage rack. Vehicles built from 1989 discontinued lids on the floor for
the maintenance of traction motors in order to reduce the noise in the
passenger room. Their traction transformer is TM24, operating under only
50Hz.
Scrap
415-1500 series owned by JR East were withdrawn by replacing by E501 series and E531 series, and remaining vehicles had been withdrawn in 2017.
Latest operation status
415-1500 series owned by JR Kyushu are now used on the ordinary services of Sanyo, Kagoshima, Nagasaki, and Nippo lines. |
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