GE Multilin SR469-P5-HI-A20 Motor Management Relay

Description

GE Multilin SR469-P5-HI-A20 Motor Management Relay

Executive Brief

The GE Multilin SR469-P5-HI-A20 is a high-performance integrated motor protection and management relay purpose-built for medium and large industrial motors, delivering comprehensive electrical protection, precise thermal modeling, real-time monitoring and industrial communication capabilities. It is widely deployed in high-risk industrial scenarios such as power, petrochemical, metallurgy and intelligent manufacturing, effectively minimizing motor downtime, extending equipment service life and improving overall operational safety and efficiency.

SR469-P5-HI-A-20

Core Technical Specifications

1. Manufacturer: GE Multilin (GE Digital)
2. Exact Model: SR469-P5-HI-A20
3. Product Category: Motor Protection & Management Relay
4. Phase CT Secondary Rating: 5 A (standard for industrial 5A CT motor applications)
5. Control Power Range: 90-300 VDC, 70-265 VAC @ 48-62 Hz
6. Analog Outputs: 4 channels of 4-20 mA
7. Ground CT Inputs: 2 independent dedicated ground CT inputs
8. VT Input Compatibility: Supports both delta and wye configuration voltage transformers
9. Display & Operation: Front panel LCD display, multi-area LED status indicators, dedicated physical keypad
10. Communication Port: Dedicated front access communication port
11. Enclosure Design: Optimized side airflow channels for enhanced heat dissipation
12. Compliance: CE marked, meets global industrial electrical safety standards
13. Thermal Modeling Features: Built-in RTD biasing, motor cooling time constant configuration
14. Protection Logic: Integrated start inhibit, emergency restart, unbalance biasing, overload curve configuration
15. Stall Protection: Equipped with independent hot and cold safe stall ratio parameters
16. Operating Temperature: Industrial-grade wide temperature design for harsh field environments
17. System Integration: Native compatibility with external control systems and SCADA platforms
18. Warranty: Standard 12-month manufacturer warranty for brand new original units

Key Features & Advantages

• Professional-grade Motor Thermal Modeling: Supports RTD biasing, customizable motor cooling time constants, hot/cold safe stall ratio configuration, delivering ultra-accurate motor thermal state tracking.
• Full-spectrum Motor Protection Logic: Integrates start inhibit, emergency restart, unbalance biasing and multi-group configurable overload curves, covering almost all common motor fault protection scenarios.
• Ultra-wide Control Power Adaptability: 90-300 VDC / 70-265 VAC wide control power range, no additional power conversion equipment required, adapting to various industrial electrical systems.
• Rich Analog Output Capability: 4 independent 4-20 mA analog outputs, seamlessly integrating with external control systems and SCADA platforms for real-time data transmission.
• Flexible VT Wiring Compatibility: VT inputs support both delta and wye configuration voltage transformers, no hardware modification needed for different field wiring conditions.
• Excellent Heat Dissipation Design: Optimized side airflow channels ensure stable long-term operation even under high-load continuous working conditions.
• Intuitive Human-machine Interaction: Front panel LCD display, clear LED status indicators and dedicated physical keypad make on-site parameter configuration and status checking extremely convenient.

Typical Application Scenarios

1. Petrochemical Large Motor Protection: Core protection and management unit for large process motors, pumps and compressors in refineries and chemical plants.
2. Power Plant Auxiliary Motor Monitoring: Dedicated protection relay for large induced draft fans, forced draft fans, circulating water pumps and other critical auxiliary motors in thermal power plants.
3. Metallurgical & Mining Motor Control: Reliable protection unit for large rolling mill motors, mining hoist motors and conveyor system motors in metallurgical and mining sites.
4. Water Treatment Plant Motor Management: Integrated protection and monitoring for large water supply pumps, sewage treatment motors and aeration system motors in municipal and industrial water treatment facilities.
5. Offshore Oil & Gas Platform Motors: Rugged motor protection relay for various process motors on offshore oil and gas production platforms, adapting to harsh marine industrial environments.
6. Large Manufacturing Production Lines: Centralized motor protection and management for high-power process motors on continuous production lines in intelligent manufacturing factories.

Related Supporting Product Model Display

1. GE Multilin SR469-P5-HI-A20-T-H: Ethernet 10Base-T enhanced version of the SR469 series, supporting high-speed network integration for remote configuration and data acquisition.
2. GE Multilin SR469 Motor Protection Series Full Range: Other variants with different CT ratings, control power ranges and communication configurations for diverse application requirements.
3. GE Multilin UR Series Relays: High-end universal protection relay series, which can be selected for more complex large motor and generator combined protection scenarios.
4. GE Multilin Motor Management Software: Dedicated upper configuration and monitoring software for series relays, supporting batch parameter configuration and centralized equipment condition management.

Frequently Asked Questions

Q1: What does the “P5” in -P5-HI-A20 stand for?
A1: “P5” indicates the relay is compatible with 5 A phase Current Transformer (CT) secondaries, which is the standard configuration for most industrial medium and large motor applications.

Q2: What is the control power range of this relay?
A2: It supports 90-300 VDC and 70-265 VAC wide control power input, adapting to almost all common industrial electrical systems.

Q3: How many 4-20 mA analog outputs does -P5-HI-A20 have?
A3: It is equipped with 4 independent 4-20 mA analog outputs for seamless integration with external control and SCADA systems.

Q4: Does this relay support both delta and wye VT configurations?
A4: Yes, its VT inputs natively accommodate voltage transformers in either delta or wye wiring configuration.

Q5: What is the core advantage of its thermal modeling function?
A5: It supports RTD biasing, customizable cooling time constants and independent hot/cold safe stall ratio settings, delivering highly accurate motor thermal state monitoring and protection.