Universal Control and Security: The ABB SYMAP EC Platform
A Multifunctional Approach to Grid Stability
The ABB SYMAP EC represents a sophisticated evolution in protection relay technology. In complex power systems—particularly those found in marine vessels, offshore platforms, and large industrial plants—discrete relays for every function are no longer efficient. The SYMAP EC integrates over 30 different protection functions into a single hardware platform. Whether it is assigned to a generator, a motor, or a transformer, the SYMAP EC provides specialized logic for overcurrent, differential, voltage, and frequency protection, ensuring that the entire grid remains stable under varying load conditions.
Programmable Logic and Bay Control
Beyond simple tripping logic, the SYMAP EC serves as a bay control unit. It features a powerful programmable logic controller (PLC) that allows engineers to create custom interlocking and automated switching sequences. For instance, in a marine power management system, the SYMAP EC can manage the automated synchronization of generators or the selective shedding of non-essential loads during a power shortage. This integration reduces the need for external control hardware and simplifies the wiring of the switchgear cabinet, leading to higher reliability and easier maintenance.
High-Precision Measurement and HMI
The SYMAP EC functions as a high-precision power meter, providing real-time data on active and reactive power, power factor, and harmonic distortion. This information is displayed on a clear, high-resolution LCD on the front panel, providing operators with immediate situational awareness. The HMI is designed for intuitive navigation, allowing for the rapid retrieval of alarm logs and disturbance records. This transparency is vital during a fault event, as it allows maintenance teams to quickly identify the root cause and restore power to the facility.
Connectivity and Global Standards
Communication is a core strength of the SYMAP EC. It supports a wide range of industrial protocols, including Modbus and Profibus, ensuring it can interface with any plant-level SCADA or DCS. The relay is built to meet the most stringent international standards, including marine classification society requirements (such as DNV and GL). Its robust mechanical design ensures that it can withstand the vibration, humidity, and thermal stress common in shipboard environments, making it a trusted choice for critical power infrastructure worldwide.
