Page 211 - Hitachi IR 2025

Details of Technology Imported Year of
Import
Whether the
technology has
been fully absorbed
If not fully absorbed areas
where this has not taken
place, reasons thereof
Variable Shunt Reactors (VSR) at 245kV and 420kV
voltage level.
2023-24 No* 245kV VSR fully absorbed.
420kV VSR ongoing along
with manufacturing and
competency development
Rolling stock traction transformer for Metro (Chennai
Metro, DMRC RS-17 and Train-18 Vande Bharat).
2023-24 Yes
Not Applicable
High power transformer LV winding design improvement
with dynamic short-circuit testing
2023-24 Yes
High Voltage Switchgear
- Assembly of 420 kV GIS Disconnector and Earthing
Switch drive
- Assembly of 420 kV GIS Fast Acting Earthing Switch
Drive.
-
Circuit Breaker (550 kV) Poles assembly
-
New DTB 245 kV
2023-24 Yes
Not Applicable
High Voltage Switchgear
-
New Hybrid GIS (PASS) 245 kV
- Dead tank current Transformer for Hydro-Quebec -
800 kV
- Dead Tank Breaker 245 kV 80 kA Interrupter &
Circuit Breaker
-
-
Withdrawable Switchgear Module COMPASS
Vertical break disconnector – 550 kV, 63 kA
2023-24 No*
In process and planned as
multi-year development
beyond FY 2024-25
Capacitive voltage transformer and Coupling capacitor
for HVDC application
Yes
- Latest (Voltage Sourced Converter) HVDC (HVDC
Light, version G5) valve technology
- Latest HVDC control and Protection (MACH 3) for
VSC HVDC Station
2023-24 Yes
Not Applicable
-
SVC Light Solutions for Grid Stability applications 2023-24 No* In process and planned as
multi-year development
beyond FY 2024-25
Automation and Communication Technologies:
MicroSCADA Software, Remote Terminal Unit -
RTU500 series, Smart Grid Communication Technology
- FOX615
2023-24 Yes
Not Applicable
Process interface unit SAM600 for Digital substations 2023-24 No* In process and planned as
multi-year development
beyond FY 2024-25
Transformer for HVDC VSC applications 2024-25 Yes
Transformers for 400 & 800kV HVDC applications 2024-25 No*
Design Optimisation of Scott transformers: 220kV-
100MVA and 132kV-100MVA for railway applications
2024-25 No*
Design of 220kV-140MVA transformer with dynamic
short circuit capability for Data Centers
2024-25 No*
Rolling stock Traction Transformers for Vande Bharat
train and metro applications
2024-25 Yes
HV Switchgear:
-
New Hybrid GIS (PASS) 245kV
- New 245kV Dead Tank Breaker (DTB),DTB
Interrupter & Circuit Breaker
- Withdrawable Switchgear Module COMPASS
- 420kV 63kA Metal Enclosed Breaker’s Interrupter
variant
2024-25 Yes
Integrated Annual Report 2024-25
209