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Covers storage, installation, electrical connection, safety, and handling guidelines.
Instructions for checking measuring inputs, power supply, output loading, earthing, and setting/calibration.
Details safety protection measures and electrostatic discharge protection during handling.
Details maintenance, waste disposal, and fault detection/repair.
Details the available auxiliary power supply options and their specifications.
Describes input ranges for phase/neutral currents and CT setup.
Explains the relay's operational principles and calculation algorithms.
Defines reference input values and input quantities like phase/earth currents.
Covers mains frequency setting and phase current measurement details.
Details the input for earth fault current and its primary current setting.
Explains the calculation of trip time based on time-current curves.
Illustrates trip time curves according to IEC standards with associated parameters.
Illustrates trip time curves according to IEEE standards with associated parameters.
Configuration for the first overcurrent protection level, including trip level and time.
Configuration for the second overcurrent protection level.
Configuration for the third overcurrent protection level.
Configuration for the first earth fault protection level.
Configuration for the second earth fault protection level.
Configuration for the first directional earth fault protection level.
Configuration for the second directional earth fault protection level.
Configuration for the Internal Relay Failure function.
Configuration for the Circuit Breaker Failure detection function.
Configuration and operation of the Trip Circuit Supervision function.
Settings for LCD display backlight and buzzer behavior.
Configuration of communication parameters like baud rate and protocol.
Instructions on how to display and view recorded events from the data logger.
Procedures for exporting recorded data in text or clipboard format.
Explains how blocking functions are controlled via output relays and digital inputs.
Details the RS485 port, its protocols, and connection for multi-unit systems.
Describes the RS232 port on the front panel for local PC communication.
Displays current measurements in real time, allowing scrolling and selection.
Allows freezing real-time measurements for detailed viewing.
Records and displays counters for the operation of various protection functions.
Stores and displays information on the last 20 protection function trips.
Guides on programming and reading relay settings, including address, time, and input values.
Configuration details for various protection functions like overcurrent and earth fault.
Continues detailing settings for directional earth fault, IRF, AnIn, TCS, LCD, and Comm functions.
Programming output relays (R1, R2, R3) and associating them with protection functions.
Lists available commands for managing trip counters, event logs, and breaker operations.
Displays relay model and firmware version details.
Describes password protection for software communication and modification attempts.
Step-by-step guide for safely removing the PCB from the enclosure.
Step-by-step guide for safely inserting the PCB into the enclosure.
General| Brand | Microelettrica Scientifica |
|---|---|
| Model | MC20-CEI |
| Category | Protection Device |
| Language | English |
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