Construction
Operation & Maintenance
Communication Systems
TEPCO owns and operates its own in-house communication networks composed
of optical fiber channels (overall length approximately 63,000km, as of 2004),
metallic cable channels, microwave channels and satellite communication channels.
These networks provide signal transmission channels of protective relay systems,
power facility supervision/control systems and business communications, thereby
contributing to a stable, efficient supply of electric power in a wide area.
TEPCO can provide planning technology to construct communication networks
for protective relay systems and so on.
TEPCO participates in and launches communication business actively. So TEPCO
can provide planning technology to construct communication business networks,
considering individual situations.
Power System Protection
Planning technology for constructing signal transmission channels of transmission
line protective relay system and other power system protective relay.
1. Role of Transmission System for Power System Protection
(1) Transmission System for Power System Protection
- Transmission system providing various information for Power System Protection
(2) Purposes to construct Transmission System for Power System Protection
- Maintaining stable operation of the Power system
2. Contents of studies about Transmission System for Power System Protection
(1) Contents of studies
- Construction method in consideration of individual situations
- Construction cost
(2) Points of concern to study Transmission System for Power System Protection
- High reliability even in the event power transmission line or communication
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Planning technology for high reliable Transmission System for Power System
Protection
3. We can propose the adequate countermeasures by using our technology
- Hearing the needs
- Extraction of the problems
- Present system analysis
- Proposal of solution
- Planning system configuration
- Cost estimation
- Determination of Transmission System for Power System Protection
