Background and overview
JR West had to deliver additional suburban dual voltage AC/DC electric
multiple unit (EMU) trains for the start of electrified Nanao line between
Tsubata and Nanao in 1991. JR West remodeled surplus 113-800 series into
dual voltage AC/DC EMUs and renumbered into 415-800 series, featuring the
protection against snow and coldness.
Modification
113-800 series operated as part of the 4-car consisting of 2 trailer end
cars and 2 powered intermediate cars and 2-car formations consisting of
2 powered end cars were reformed into 3-car formations consisted for 415-800
series and 113-800 series in order both to reduce remolding cost and to
increase the capacity of short formations of 113-800 series. Trailer end
cars for 415-800 series were remodeled from ones equipped with an auxiliary
power supply with a power output of 110kVA, supplying the power for air
conditioners, in order to reduce the remodeling cost.
The roof section where the current collector was fitted was made lower
to keep the distance for insulation against high voltage overhead line.
The underframe of powered intermediate cars was remodeled for fitting a
transformer. The current pickup was changed into a diamond shaped current
collector having the protection against heavy snow, classified into PS16H.
The door opening equipment was remodeled TK4 to use for the semi-automatic
operation, controlled indirectly employing self-old. Most of 415-800 series
vehicles were equipped with a centralized air conditioner, AU75. Some vehicles
remodeled from non-airconditioned vehicles were equipped with distributed
air conditioners, WAU102, for end cars and with a centralized air conditioner,
AU75, for intermediate cars. Globular ventilators were changed into forced
ventilators for the protection against snow. Their livery of end cars was
applied with violet blue upper bodyside and gray lower bodyside separated
by two wide and narrow oyster white stripe. The upper bodyside of the intermediate
cars was changed into royal pink.
They adopted electromagnetic straight pneumatic brake with the rheostatic brake. The variable load valve and brake control device was employed because the total mass became heavier because of introducing a transformer and a rectifier for alternate current.
A transformer, a rectifier, an AC/DC changeover switch were transplanted
from 485 series converted to direct current only. A pneumatic compressor
and an auxiliary power supply were improved against pulsating current.
A transformer, a rectifier, an AC/DC changeover switch were transplanted
from 485 series converted to direct current only. An air compressor and
an auxiliary power supply were improved against pulsating current.
All ventilators on the roof were removed later. Buttons to open or close
doors for semi-automatic sliding doors are added in 2000. Their livery
was changed into red colour in 2010.
Scrap
Although 415-800 series had been used on the rural services of Hokuriku
line and Nanao line, they had been completely replaced with 521-100 series
EMU in 2021. |
|
| Technical Data |
| Items |
Data |
| Supply
Voltage |
1500VDC, 20000VAC, 50/60Hz |
| Service
speed, etc. |
Service
speed: 100km/h |
| Length |
19500mm |
| Width |
2900mm |
| Height |
3654mm |
| Bogie |
DT21B (motored) TR62 (trailer) |
| Collector |
PS16H |
| Traction
motor |
MT54, MT64B (120kW) |
| Gear
ratio |
4.82 |
| Transformer |
TM20 |
| Rectifier |
RS22A |
| Traction system |
Armature-resistance
control: (CS12D~F) |
| Air
conditioner |
AU75B, WAU102(12000kcal/h~3) |
| Designed
by |
JR West |
|
|
