The technical parameters of the ABB SPAJ141C-AA Overload and Ground Leak Protection Relay can be outlined in English as follows:
Technical Parameters of ABB SPAJ141C-AA Overload and Ground Leak Protection Relay
- Power Supply:
- Voltage Range: 80-265V AC/DC, 50Hz. This wide voltage range allows the relay to be used in various electrical environments.
- Protection Functions:
- Overload Protection: Provides protection against overcurrent conditions, preventing damage to motors and other equipment due to excessive current draw.
- Ground Leak Protection: Detects ground leakage currents and initiates protective actions to prevent electrical shocks and equipment damage.
- Current Rating:
- Shell Frame Current: 160-1600A. This indicates the maximum current rating that the relay can handle, making it suitable for a wide range of applications.
- Tripper Rated Current: 400A (as an example, specific to certain configurations). This is the current level at which the relay will trip to protect the circuit.
- Breaking Capacity:
- Rated Breaking Capacity (Icu): 16-200KA. This represents the maximum fault current that the relay can safely interrupt.
- Polarity and Poles:
- Poles: 3P (three-pole), indicating that the relay is designed for three-phase electrical systems.
- Operating Mechanism:
- Operating Method: Handle direct operation, allowing for manual control and resetting of the relay.
- Wiring Method: Back-panel wiring, facilitating easy installation and connection to the electrical system.
- Protection Features:
- Comprehensive Protection: Integrates functions such as overload, overcurrent, undervoltage, overvoltage, undercurrent, short circuit, phase loss, leakage, and phase sequence protection.
- Time-Current Characteristics: Offers inverse definite minimum time (IDMT) and definite time characteristics for overload protection, allowing for flexible protection settings.
- Indicators and Displays:
- Local Display: Shows measured and set values, as well as fault data recorded at the moment of a fault. This facilitates easy monitoring and troubleshooting.
- Communication and Control:
- Serial Interface: Allows for communication with higher-level systems for remote monitoring and control.
- Output Relay Matrix: Enables any start or trip signal from the protection stages to be routed to the desired output relay, providing flexibility in system design.
- Self-Supervision:
- Continuous Monitoring: The relay includes a self-supervision system that continuously monitors the operation of the electronics and microprocessor, ensuring reliable performance.
- Mechanical and Electrical Life:
- Mechanical Life: 20,000 operations, indicating the durability of the relay’s mechanical components.
- Electrical Life: 8,000 operations, reflecting the longevity of the relay under electrical load.
- Dimensions and Mounting:
- Dimensions: 150-435mm (specific dimensions may vary depending on the configuration).
- Mounting Method: Designed for easy mounting in control panels or distribution boards.
