Disconnecting Circuit Breaker (DCB) with Fiber Optic Current Sensor (FOCS) 420 - 550 kV for Digital substations
A smart grid ready solution for use with IEC 61850-9-2LE process bus communication
The DCB with FOCS includes three functions in one device: measurement, interruption and isolation. FOCS is a Fiber Optic Current Sensor that replaces the conventional current transformer for current measurement. Integrating the FOCS into a DCB (Disconnecting Circuit Breaker) provides the following advantages:
- Short-circuit performance at twice the industry standard
- Faster installation times; plug and play
- One FOCS replaces many CT cores, simplifying design and engineering substations
- Lower environmental impact
- More intelligent protection and control due to smart process bus interface
A Disconnecting Circuit Breaker (DCB) provides the functions of a circuit breaker and a disconnector combined in a single unit. Read more
Applications
- Smart grid enabled as per IEC 61850-9-2LE
- Line, transformer, reactor and capacitor switching
- Switching for harmonic filters
- Suitable for industry applications due to low space requirements and high reliability
Why Hitachi Energy?
- Only solution with optical current measurement integrated in a disconnecting circuit breaker
- World leader in optical current measurement systems
- Fully redundant, hot swappable plug and play solution
- Local and global Hitachi Energy industry and application support
- Global service organization, local everywhere
Brief performance data
| DCB with FOCS | ||
| Rated voltage | kV | 420 - 550 |
| Frequency | Hz | 50 - 60 |
| Rated current | A | 4000 |
| Rated breaking current | kA | 63 |
| Rated power frequency | Hz | 50/60 |
| Ambient temperature | C | - 40 - +50 |
| Measurement class | TPE | 5 |
Get to know more
