Distribution Automation
Breaker position, bus current and residual-current sensing for MV/LV switchgear and ring main units, plus over-current protection and energy metering.
Distribution automation is about knowing the state and isolating the fault. Breaker position, bus current and residual current are the three most basic measurements — get any of them wrong and you risk a spurious trip or a failure to operate.
RJMICRO Hall latches sense breaker and disconnector position, linear and differential Hall current sensors measure bus current, residual current and CT signals, and low-quiescent-current LDOs power battery backup and communication modules in ring main units.
Systems and scenarios covered
MV/LV distribution
- Breaker and disconnector position sensing
- ring main unit and switchgear condition monitoring
- bus and residual current sensing
Protection and metering
- Over-current and short-circuit protection
- energy metering and CT signal acquisition