MCA4 Directional Feeder Protection (MCA4-2D0BLA)
The MCA4 is a precise and reliable protection, control and monitoring relay for feeder, grid and generator applications. It incorporates all the ANSI and IEC concepts to comply with ever changing grid interconnection requirements.
Flexibility in hardware, software, application, user interface and communications makes the MCA4 adaptable to requirements today and in the future.
The protection functions of the MCA4 have been adapted to comply with the requirements of the VDE-AR-N-4110/4120:2018.
The parameterizing and analyzing software Smart view is usable for each HighPROTEC device and free of charge.
Functional Overview
Features:-
- Wide range power supply: 24 … 270 VDC / 48 … 230 VAC
- VT measurement from 0 V up to 800 VAC (300 VAC for some order options)
- CT measurement always with 1 A and 5 A
- Plausibility verification intelligence
- Optimized functional overview by hiding unused functions, parameter and assignments
- On-board testing without removing the wiring
- Menu Languages supported: English, German, Spanish, Portuguese, French, Russian, Polish, Romanian
Applications :-
- Interconnection of renewable energies (DER – distributed energy resources) to the public grid.
- Over- / Undervoltage protection.
- Protection of High, Medium and Low Voltage feeders against thermal damages by overload or short circuit currents.
- Protection of High, Medium and Low Voltage feeders against overvoltage (insulation damage) and undervoltage.
- Frequency based protection option, examples:Over-/Underfrequency supervisionLoad shedding by ROCOF
- Auto reclosure option to fix short duration faults (like bird flying through overhead lines, ice on lines, lightning’s hitting overhead lines, wind caused arcing by on overhead lines.