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- ABB
- REJ603 REJ603BBB10NN3XC
- Self-Powered Feeder Protection Device
- Sweden (SE)
- 160 x 96 x 150 mm
- 0.9 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
In medium-voltage secondary distribution systems, reliable feeder protection is essential for maintaining electrical network safety, reducing equipment damage, and ensuring continuous power supply. The ABB REJ603 REJ603BBB10NN3XC Self-Powered Feeder Protection Device is an intelligent protection relay designed for feeder and transformer protection applications in medium-voltage distribution networks.
The ABB REJ603 is a self-powered protection device that operates using current transformer energy, making it suitable for applications where auxiliary power supply is unavailable or cannot be guaranteed. This design provides an effective protection solution for remote substations, ring main units, and secondary distribution switchgear installations.
The REJ603BBB10NN3XC provides essential protection functions including feeder fault detection, overcurrent protection, and earth fault protection. It is designed to deliver reliable performance with simple configuration, compact installation, and efficient commissioning.
The device is widely used in utility distribution systems, industrial electrical networks, and medium-voltage switchgear applications where dependable feeder protection is required.
With dimensions of 160 × 96 × 150 mm and a weight of 0.9 kg, the ABB REJ603 REJ603BBB10NN3XC Self-Powered Feeder Protection Device offers a compact and lightweight solution for medium-voltage protection applications.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | ABB |
| Model | REJ603 |
| Ordering Code | REJ603BBB10NN3XC |
| Product Type | Self-Powered Feeder Protection Device |
| Application | Medium Voltage Feeder Protection |
| Main Function | Feeder Protection and Fault Monitoring |
| Power Supply Method | Current Transformer Powered |
| Device Type | Digital Protection Relay |
| Protection Functions | Overcurrent and Earth Fault Protection |
| Installation Method | Panel Mounting |
| Dimension | 160 × 96 × 150 mm |
| Weight | 0.9 kg |
Function and Working Principle
The ABB REJ603BBB10NN3XC operates as a self-powered digital feeder protection device that continuously monitors electrical conditions in medium-voltage distribution systems.
Unlike conventional protection devices that require a dedicated auxiliary power supply, the REJ603 can obtain operating power from current transformer signals. This makes it suitable for remote installations and applications where external power availability is limited.
During normal operation, the relay measures feeder current conditions and analyzes electrical parameters according to configured protection settings.
When an abnormal condition occurs, such as a short circuit or grounding fault, the relay identifies the fault and activates the protection output to isolate the affected circuit.
The operating process includes:
- Receiving current signals from current transformers
- Obtaining operating energy from measured current
- Processing electrical system information
- Comparing values with protection settings
- Detecting feeder faults
- Activating protection commands
Main functions include:
- Self-powered operation
- Feeder protection
- Overcurrent protection
- Earth fault protection
- Fault indication
- Event recording
- Diagnostic monitoring
Role in Industrial Power Protection Systems
The ABB REJ603BBB10NN3XC provides reliable protection for medium-voltage feeders, especially in locations where traditional auxiliary power sources are unavailable.
It is commonly integrated with:
| System Component | Function |
|---|---|
| Current Transformer | Provides measurement and operating power |
| Circuit Breaker | Disconnects faulty feeder sections |
| Medium Voltage Switchgear | Controls electrical distribution |
| Ring Main Unit | Supports secondary distribution protection |
| Protection Panel | Houses relay equipment |
| Monitoring System | Supports fault analysis |
The self-powered design improves installation flexibility and allows protection solutions to be deployed in remote electrical locations.
Industrial Applications
The ABB REJ603 REJ603BBB10NN3XC Self-Powered Feeder Protection Device is suitable for various industrial and utility applications.
| Industry | Application |
|---|---|
| Power Utilities | Secondary distribution feeder protection |
| Manufacturing Plants | Medium-voltage electrical protection |
| Oil and Gas | Remote electrical distribution systems |
| Petrochemical | Industrial feeder protection |
| Mining Industry | Remote power network protection |
| Renewable Energy | Medium-voltage collection systems |
| Water Treatment | Distribution switchgear protection |
| Infrastructure Projects | Utility feeder protection |
The device is ideal for applications requiring reliable protection with minimal auxiliary power requirements.
Installation and System Integration
Proper installation and configuration ensure reliable operation of the ABB REJ603.
Recommended installation procedures:
- Install the relay inside medium-voltage switchgear
- Connect dedicated current transformer circuits
- Configure feeder protection parameters
- Connect trip and alarm outputs
- Verify protection settings
- Perform commissioning tests
During commissioning, engineers should verify:
- Current transformer connections
- Protection parameter settings
- Fault detection operation
- Output contact performance
- Status indicators
- Event recording functions
Correct commissioning helps ensure accurate protection performance and reduces unnecessary power interruptions.
Protection Functions
The ABB REJ603BBB10NN3XC provides essential protection functions for medium-voltage feeder applications.
| Protection Function | Description |
|---|---|
| Overcurrent Protection | Detects excessive feeder current |
| Earth Fault Protection | Identifies grounding faults |
| Short Circuit Protection | Provides rapid fault response |
| Feeder Protection | Protects distribution circuits |
| Fault Indication | Displays abnormal conditions |
| Event Recording | Stores operational information |
These protection functions help prevent electrical equipment damage and improve system reliability.
Monitoring and Diagnostic Functions
The ABB REJ603 provides useful operational information for maintenance teams.
| Function | Description |
|---|---|
| Fault Monitoring | Detects feeder abnormalities |
| Event Logging | Records protection events |
| Status Indication | Displays relay condition |
| Self Diagnostics | Monitors device health |
| Protection Monitoring | Supports troubleshooting |
These functions help engineers analyze faults and reduce maintenance time.
Communication and Connectivity
The ABB REJ603BBB10NN3XC is designed mainly for local protection applications and provides essential protection information for electrical systems.
| Function | Description |
|---|---|
| Protection Data | Provides fault information |
| Local Indication | Displays relay status |
| Diagnostic Information | Supports maintenance |
| Protection Output | Controls external switching devices |
The device is suitable for both new installations and retrofit projects requiring compact feeder protection.
Compatible Automation Systems
| System | Application |
|---|---|
| Medium Voltage Switchgear | Feeder protection |
| Ring Main Units | Secondary distribution protection |
| Utility Substations | Electrical network protection |
| Industrial Power Systems | Equipment protection |
| Distribution Networks | Fault monitoring |
Recommended Alternative Models
| Model | Type | Application |
|---|---|---|
| ABB REJ603BBB10NN3XC | Self-Powered Feeder Protection Device | Remote feeder protection |
| ABB REJ603BB401NN3XE | Grounding Protection Relay | Earth fault protection |
| ABB REF601 | Feeder Protection Relay | Medium-voltage feeder systems |
| ABB REF615 | Feeder Protection and Control Relay | Advanced protection applications |
Key Advantages
- Self-powered protection design
- No dedicated auxiliary power required
- Reliable feeder fault detection
- Compact installation size
- Suitable for remote locations
- Provides essential feeder protection functions
- Simple commissioning process
- Reduces installation complexity
- Improves medium-voltage network reliability
Technical FAQs
What is the ABB REJ603 REJ603BBB10NN3XC used for?
The ABB REJ603 REJ603BBB10NN3XC is a self-powered feeder protection device designed for medium-voltage feeder and distribution protection applications.
How does the ABB REJ603 obtain operating power?
The device obtains operating energy from current transformer signals, allowing operation without a traditional auxiliary power supply.
What protection functions does the ABB REJ603 provide?
It provides feeder protection, overcurrent protection, earth fault protection, fault indication, and diagnostic monitoring functions.
What are the dimensions of the ABB REJ603BBB10NN3XC?
The dimensions are 160 × 96 × 150 mm.
What is the weight of the ABB REJ603BBB10NN3XC?
The total weight is 0.9 kg.
Conclusion
The ABB REJ603 REJ603BBB10NN3XC Self-Powered Feeder Protection Device is a reliable and compact solution designed for medium-voltage secondary distribution protection.
With self-powered operation, dependable fault detection, and essential feeder protection functions, the REJ603BBB10NN3XC helps improve electrical safety, protect critical equipment, and maintain stable operation of industrial and utility power networks.
For electrical engineers, automation specialists, and maintenance professionals, the ABB REJ603BBB10NN3XC provides an efficient solution for feeder protection in applications where reliable and independent operation is required.