The GGW2 Series Digital Universal Circuit Breaker is designed for distribution networks with alternating current (AC) at 50Hz, rated voltages up to 660V (690V), and rated current from 630A to 6300A. This circuit breaker is primarily used to distribute electrical energy and protect circuits and power equipment from potential damages caused by overloads, undervoltage, short circuits, and single-phase grounding faults. Additionally, it offers data collection, transmission, and storage capabilities for current, voltage, active power, reactive power, apparent power, and active energy. Equipped with intelligent protection features, this circuit breaker ensures accurate selective protection, enhancing the reliability of power supply systems and reducing unnecessary downtime. It also supports remote monitoring via open communication interfaces and 4G/NB communication methods.
Key Advantages and Features
1. Comprehensive Protection Functions:
- Overload Protection: Provides both long-time and short-time overload protection with time-delay characteristics, ensuring the circuit is safeguarded against prolonged current surges.
- Short-Circuit Protection: Instantaneous protection for preventing damage to the system in case of a short circuit.
- Single-Phase Ground Fault Protection: Includes a specific feature for detecting and protecting against single-phase grounding faults, improving safety in power networks.
- Intelligent Diagnostic Functions: Equipped with built-in self-test and microprocessor diagnostic capabilities to ensure reliable performance and easy troubleshooting.
2. Data Monitoring and Collection:
- The circuit breaker can collect various operational data, including current, voltage, active power, and reactive power, providing valuable insights into system performance.
- Real-Time Data Transmission: Using integrated communication modules, data is transmitted wirelessly to a cloud-based platform, allowing for remote monitoring and control via mobile apps or RS485 communication.
- Data Storage: Data is securely stored on the cloud for up to 90 days, ensuring historical data is available for analysis and system optimization.
3. Smart Control Features:
- User Customization: The intelligent controller allows users to configure protection settings, including overload time delays, fault detection parameters, and alarm thresholds.
- Visual Display: The system displays key metrics such as current, voltage, and fault conditions directly on the interface, offering real-time insight into system performance.
- Alarm and Warning Features: Includes visual and audible alarms for overload conditions, helping operators take timely action.
4. Communication Flexibility:
- Multiple Communication Methods: The circuit breaker supports a variety of communication protocols including 4G, NB, power line communication (HPLC), and Ethernet, providing flexible options for integration into existing network infrastructure.
- Cloud Connectivity: No need for a local server, as the device supports direct cloud communication, enabling remote access and management through mobile apps without requiring a computer or upper-level software.
Working Conditions
- Ambient Temperature: The operating temperature range is between -5°C to +40°C, with a 24-hour average temperature not exceeding +35°C. For environments where the temperature exceeds these limits, consultation with the manufacturer is recommended.
- Humidity: At 40°C ambient temperature, the relative humidity should not exceed 50%. During the wettest months, the relative humidity can reach up to 90%, as long as the average minimum temperature is +25°C.
- Altitude: The circuit breaker can be used at altitudes up to 2000 meters. For applications at higher altitudes, consultation with the manufacturer is recommended.
- Protection Rating: With an IP30 protection rating, the circuit breaker is designed for standard indoor environments.
- Pollution Level: The device is suitable for installation in environments with pollution level III, ensuring it operates effectively in moderately polluted areas.
Installation Conditions
- Installation Category: For circuits with rated working voltages of 660V (690V) and below, the circuit breaker is suitable for Installation Category IV (primary side of a transformer) for the main power circuit, while the auxiliary and control circuits fall under Installation Category III.
- Electrical Setup: Ensure that the installation environment matches the specified categories for safe and efficient operation.