Not active product since 2009
The feeder terminal type SPAC 311 C is used as a cubicle-oriented protection and local/remote control interface unit for one feeder. The feeder terminal SPAC 311 C is mainly used in applications requiring sensitive earth-fault protection. In addition to the protection, control and measurement functions, the feeder terminal is provided with the data communication properties needed for the control of the switching devices of a feeder cubicle. Connection to higher-level substation control equipment is carried out via a fibre-optic serial bus.
Scope
- Complete feeder terminal with a three-phase two-stage overcurrent unit and a two-stage non-directional earth-fault unit
Product benefits
- Multi-functional protection functions
Product features
- Complete feeder terminal with a three-phase two-stage overcurrent unit and a two-stage non-directional earth-fault unit
- Definite time or inverse definite minimum time (IDMT) operation characteristic for the low-set stage of the overcurrent unit
- Definite time operation characteristic for the low-set stage of the sensitive earth-fault unit
- Instantaneous or definite time operation characteristic of the high-set stage of the overcurrent unit and the earth-fault unit
- Configurable feeder level interlocking system for preventing
- Continuous self-supervision for maximum system reliability and availability
- Member of the SPACOM product family and ABB’s Distribution Automation system