Page 27 - Hitachi IR 2025

Hitachi Energy India Limited
is the first company to have
delivered India’s largest power-
rated Scott transformers,
featuring multiple 100 MVA
units at 132 kV. In addition to
Scott-connected transformers,
the Company secured a contract
from an EPC company to supply
132 kV and 220 kV, 63 MVA
V-connected transformers for
the eastern railway section.
Your Company successfully
completed a short-circuit test
for both 132 kV and 220 kV
V-connected transformers.
Being at the forefront of
developing cutting-edge
power solutions for the railway
industry, your Company
developed Scott-connected
and V-connected Specialty
Transformers specifically
designed to meet the unique
requirements of the new 2x27.5
kV system of Indian Railways.
Making a difference
Specialty Transformers (Scott-
connected & V-connected) meet
a higher power requirement
(for increased train speed)
and offer key benefits such as
better voltage regulation and
reduced voltage imbalances
in the network compared to
conventional single-phase
traction power transformers with
similar power capacity.
Scott-connected and V-connected transformers: Key benefits
Integrated with the 2x27.5 kV system, Scott-connected and
V-connected transformers promise to transform India's rail
network dramatically. The key features of the transformers are
as below:
• Advanced technologies support higher power delivery, leading
to faster train speeds, shorter journey times, and enhanced
rail capacity.
• Ability to operate at higher voltages allows for increased
spacing between railway substations (known as Traction
Substations or TSS) that supply power to the train lines.
• Optimization of rail electrical infrastructure reduces
maintenance costs and improves overall system reliability.
• Efficiency and power quality of transformers translate into lower
energy losses and a significant reduction in environmental
impact, with up to 30% decrease in CO2 emissions associated
with traditional transformers, aligning with India's sustainability
goals, contributing to a greener rail network.
Promising to transform India's rail
network
By enabling higher power
delivery, the technologies support
increased train speeds, reduced
journey times and enhanced
passenger capacity. Furthermore,
their special connection and ability
to deliver more power allow for
increased spacing between railway
substations that supply power
to the train lines. Optimizing rail
electrical infrastructure reduces
maintenance costs and improves
the overall system reliability.
Empowering India’s progress.
Enhancing the quality of life.
As India strives to achieve its
sustainability goals, the Company’s
technologies play a crucial role in
building a more energy-efficient rail
network. These solutions are not
just about technology, but more
about empowering India's progress.
Beyond delivering environmental
benefits, these innovations
represent a real enabler for the
growth and development of local
communities. Faster and more
reliable freight transportation is
targeted at boosting the economy,
while improved passenger services
are aimed at enhancing the overall
quality of life for millions of Indians.
Integrated Annual Report 2024-25
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