Excellent PLC
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| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Introduction
The ABB NETA-21 3AUA0000093781 is a comprehensive protection relay designed to offer essential functions for power system protection. It is part of ABB’s extensive NETA series, which is specifically tailored for advanced power management. This model delivers reliable protection for generators, motors, transformers, and other electrical devices within industrial and utility settings. It boasts a high level of integration with advanced settings for both fault detection and system stability.
It provides users with critical real-time data through robust communication capabilities and fault analysis, offering diagnostics and preventing equipment damage due to electrical faults. With its efficient operation and scalability, it is widely deployed in various industries including manufacturing, energy production, and infrastructure.
Product Advantages
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Comprehensive Protection: Supports multiple protection algorithms, including overcurrent, earth fault, and differential protection, ensuring the safety of electrical systems.
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Modular Design: Its flexible design allows users to adapt the relay for various protection needs based on system requirements.
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Advanced Communication: Features such as Ethernet, Modbus, and IEC 61850 ensure seamless integration into modern communication networks.
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User-friendly Interface: The device’s intuitive user interface makes configuration and monitoring easy, even for non-expert operators.
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Real-time Diagnostics: Provides precise diagnostics of faults in the system to prevent future damage and enhance system uptime.
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Compact and Robust: Its compact form factor and sturdy construction make it ideal for harsh industrial environments.
Technical Specifications
| Parameter | Value |
|---|---|
| Model Number | NETA-21 3AUA0000093781 |
| Voltage Range | 90–265 V AC/DC |
| Current Input Range | 0.1–100 A |
| Power Consumption | 5–15 W |
| Dimensions | 96 × 96 × 85 mm |
| Weight | 0.5 kg |
| Operating Temperature | -20°C to +55°C |
| Mounting Type | DIN Rail |
| Communication Ports | Ethernet, Modbus, IEC 61850 |
| Relay Type | Multifunctional Protection |
| Display | LCD (128×64 pixels) |
Applications
The ABB NETA-21 3AUA0000093781 protection relay is primarily used in:
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Power Generation: Protects generators from faults and overloading conditions.
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Industrial Facilities: Safeguards transformers, motors, and other critical electrical equipment from potential damage.
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Infrastructure: Provides reliable protection for substations and other electrical distribution systems.
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Automation Systems: Integrates seamlessly into automated systems for real-time monitoring and protection of electrical components.
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Renewable Energy: Protects wind turbines and solar energy systems from electrical faults and system imbalances.
Frequently Asked Questions (FAQs)
Q1: What protection functions does the ABB NETA-21 offer?
A1: The ABB NETA-21 offers a range of protection functions, including overcurrent protection, earth fault protection, differential protection, and voltage regulation.
Q2: How does the NETA-21 integrate into existing systems?
A2: It integrates easily into existing systems using various communication protocols, such as Modbus, Ethernet, and IEC 61850, ensuring compatibility with modern power management systems.
Q3: Can the NETA-21 be used for both AC and DC systems?
A3: Yes, the NETA-21 is compatible with both AC and DC systems, supporting voltage ranges from 90V to 265V.
Q4: Is the NETA-21 suitable for outdoor use?
A4: While the device is robust and durable, it is recommended for use in controlled environments. For outdoor applications, proper enclosure and climate protection should be used.
Q5: What is the communication speed of the Ethernet port?
A5: The NETA-21 supports standard Ethernet communication speeds of up to 100 Mbps.
Q6: How is the NETA-21 configured?
A6: Configuration is done through its user-friendly interface, either via its local display or through external software, which allows for easy adjustment of settings and parameters.
Q7: Does the NETA-21 offer data logging?
A7: Yes, it offers event logging, which records fault incidents and system events for later analysis and diagnostics.
Q8: What is the typical lifespan of the NETA-21 relay?
A8: The NETA-21 is built for long-term use with proper maintenance, typically offering a lifespan of over 5 years under normal operating conditions.
Q9: Can the NETA-21 be used in high-voltage systems?
A9: The NETA-21 is designed for low to medium voltage systems. For high-voltage systems, specific high-voltage protection relays should be used.
Q10: Does the NETA-21 support remote monitoring?
A10: Yes, it supports remote monitoring via Ethernet, allowing operators to view real-time data and diagnostics from any remote location.
Recommended Models (Same Series or Related)
| Model Number | Description | Voltage Range | Current Range | Power Consumption |
|---|---|---|---|---|
| NETA-20 | Standard Protection Relay | 90–265 V AC/DC | 0.1–100 A | 5–12 W |
| NETA-25 | Advanced Multifunctional Protection Relay | 90–265 V AC/DC | 0.1–100 A | 10–20 W |
| NETA-24 | Differential and Overcurrent Protection Relay | 90–265 V AC/DC | 0.1–100 A | 5–15 W |
| NETA-22 | Relay for Large Transformers | 90–265 V AC/DC | 0.1–200 A | 8–18 W |
| NETA-30 | Digital Protection Relay | 90–265 V AC/DC | 0.1–100 A | 7–17 W |
| NETA-15 | Compact Protection Relay for Small Installations | 90–265 V AC/DC | 0.1–50 A | 5–10 W |
Popular ABB Models
| Model Number | Description | Voltage Range | Current Range | Power Consumption |
|---|---|---|---|---|
| ABB REM615 | Relay for feeder protection | 90–265 V AC/DC | 0.1–200 A | 8–20 W |
| ABB REU615 | Universal Protection Relay | 90–265 V AC/DC | 0.1–100 A | 5–12 W |
| ABB REF542+ | Feeder and Transformer Protection Relay | 90–265 V AC/DC | 0.1–300 A | 10–25 W |
| ABB Ekip R | Modular Protection Relay for low-voltage systems | 90–265 V AC/DC | 0.1–100 A | 5–15 W |
| ABB PCS6000 | Power Control and Protection System | 90–400 V AC | 0.1–500 A | 15–40 W |
| ABB SAS6000 | Substation Automation System | 90–265 V AC/DC | 0.1–500 A | 20–50 W |
