Power Sources ll EPOS MC4

Description

Power Sources ll EPOS MC4

EPOS MC4 – Motor and Coil Test System

The EPOS MC4 is a compact and portable motor and coil testing system equipped with a powerful AC/DC voltage source. It is specifically designed for circuit breaker testing and can supply power to spring-charging motors and trip coils.

The system can also be used as a battery replacement during switchgear testing and as a reliable power source when performing tests with ACTAS switchgear test systems. It records the operating currents of motors and trip coils and displays the measured values clearly for easy evaluation.

Circuit Breaker Analysis

The EPOS MC4 provides several functions for evaluating the condition and performance of circuit breaker components:

• Analysis of motor and trip-coil operation
• Measurement of coil resistance
• Determination of minimum operating voltage
• Testing of undervoltage releases

The recorded results can help identify the condition of coils, motors, and mechanical components, as well as detect potential faults between windings.

Powerful and Stable Voltage Source

The EPOS MC4 uses advanced power electronics and synthetic signal generation to provide a highly stable output. Its output is largely unaffected by disturbances in the incoming power supply, allowing tests to be performed under consistent conditions.

This ensures that test results can be compared reliably during commissioning, maintenance, and repeated testing.

Key Features

• Adjustable test voltage up to 270 VAC / 300 VDC
• Maximum output current up to 40 A
• Three outputs for opening and closing coils
• One dedicated motor output
• Independent voltage and frequency configuration for the outputs
• Short-circuit protection
• Overload protection
• High voltage stability
• Portable and rugged construction

Continuous Output Without Cooling Intervals

The electronically regulated power source is designed for efficient operation with minimal heat generation, even at high output power. This allows high currents and voltages to be supplied for extended periods without frequent cooling intervals.

As a result, the EPOS MC4 can reduce testing time and improve overall efficiency compared with conventional power supply systems.

Soft-Start Function

The motor output includes a soft-start function that helps control high inrush currents during motor startup. A programmable step-based voltage ramp can gradually increase the output from zero to the required nominal voltage.

This feature helps prevent unwanted shutdowns caused by excessive starting currents and provides greater control during motor testing.

Simple and Intuitive Operation

The EPOS MC4 features an integrated operator interface with a 5-inch touchscreen, jog wheel, function keys, and trigger keys.

Users can conveniently:

• View all test settings
• Edit test parameters directly
• Monitor output values
• Check system operating status through LED indicators

The intuitive interface makes it easy to configure and perform tests directly from the instrument.

EPOS MC4 Integration with ACTAS

The EPOS MC4 includes interfaces for connection to ACTAS testing systems. Through the ACTAS testing software, the EPOS MC4 can be integrated as a power source within switchgear testing procedures.

This enables automated test sequences, synchronized testing, and comprehensive evaluation of recorded test results.

Rugged and Portable Design

The EPOS MC4 is housed in a compact, highly durable hard-shell case designed for demanding working environments. The closed case provides IP67-rated protection against water and dust and helps protect the internal electronics from impacts during transportation and field use.

An integrated cable compartment in the case lid provides convenient storage for the supplied cable set.

The portable design makes the EPOS MC4 suitable for field service, switchgear maintenance, production facilities, and testing laboratories.

Test Data Storage and Reporting

Test results are stored in the internal memory along with date and time information, allowing measurements to be retrieved for future analysis.

The stored data can be transferred to a PC or laptop using the EPOS MC4 software. Users can review and manage measurement results, generate professional test reports, and export data to Excel spreadsheets.

Test records can also be archived for comparison with future maintenance and servicing measurements, helping users monitor changes in motor and coil performance over time.