TEPCO has accomplished stable and reliable power system to achieve high quality
power supply. To realize the well-balance performance, TEPCO improves protection
performance, develops various protection systems and uses appropriate controller
etc.
Transmission Network
Electric Energy Storage
Planning
Planning
System Planning (Bulk Power System)
System Planning (Regional Power System)
Optimum Fault Current Countermeasures
Fault Current is current flowing from each generator into a fault point.
Upgrading and expanding of generating and transmission system facilities increase
fault current levels.
1. Problems of fault current increasing
- Shortage of capacity of transmission lines and series facilities such as
Circuit Breakers
- Interference to communication lines caused by electromagnetic induction
- Damage to the facilities caused by the fault currents
2. Example of Our Competence
| Title: |
“Impact on the Transient Performance of the Network with the Introduction
of High Impedance 400/230kV Transformers in the Network” |
| Client: |
Singapore Power Grid (SPPG), Singapore |
| Term: |
December 2005 – June 2006 |
