Description
1. Product Title
GE MIFIIIPA55E20HI00 – Multilin MIF II Digital Feeder Protection Relay
2. Product Overview
The MIFIIIPA55E20HI00 from GE (Multilin series) is a microprocessor-based digital feeder protection relay designed for medium-voltage distribution systems. It provides comprehensive protection, control, and monitoring for electrical feeders, transformers, and industrial motors.
The MIFIIIPA55E20HI00 integrates phase and ground overcurrent protection with advanced digital processing, enabling fast and accurate fault detection. It is commonly used as both primary and backup protection in utility and industrial power systems. With built-in communication interfaces and event recording capabilities, this relay enhances system visibility, simplifies troubleshooting, and improves overall grid reliability.
3. Technical Specifications
- Brand: GE (Multilin)
- Model: MIFIIIPA55E20HI00
- Warranty: One Year
- Condition: 100% New & Original
Detailed Specifications:
- Product Type: Digital Feeder Protection Relay
- Protection Functions:
- Phase overcurrent (50/51P)
- Ground overcurrent (50/51G)
- Current Input:
- 5 A CT secondary (phase & ground)
- Power Supply:
- 110–250 V DC
- 110–230 V AC
- Frequency: 50/60 Hz auto-sensing
- Communication:
- Front RS232
- Rear RS485 (Modbus RTU)
- Display Interface:
- 2×16 character LCD
- 5-button keypad
- Digital Inputs/Outputs:
- 2 digital inputs
- 6 relay outputs
- Event Recording:
- Up to 32 events with fault logging
- Thermal Protection: Built-in thermal image function
- Mounting: Panel-mounted relay
- Environmental Protection: Conformal coating (harsh environment option “H”)
4. Key Features & Benefits
- Comprehensive Feeder Protection:
Integrates phase and ground overcurrent protection in a single unit, ensuring reliable fault detection and isolation. - Digital Event & Fault Recording:
Captures fault data and oscillography, enabling detailed post-event analysis and faster troubleshooting. - Flexible Communication Interfaces:
RS232 and RS485 (Modbus RTU) support seamless integration with SCADA and automation systems. - Thermal Modeling Protection:
Built-in thermal image function helps prevent equipment overheating and extends asset life. - Rugged Industrial Design:
Conformal coating and robust construction ensure reliable operation in harsh environments such as substations and industrial plants.
5. Application Scenarios
- Power Distribution Systems:
Provides primary and backup protection for medium-voltage feeders in substations and industrial networks. - Transformer Protection:
Used as backup protection for distribution transformers to detect overloads and faults. - Motor Protection:
Protects large motors against overcurrent and thermal overload in industrial facilities.
6. Frequently Asked Questions (FAQ)
- Q: What is the primary function of the MIFIIIPA55E20HI00?
A: The MIFIIIPA55E20HI00 is a digital feeder protection relay that monitors and protects electrical feeders from overcurrent and ground faults. - Q: Does MIFIIIPA55E20HI00 support communication with SCADA systems?
A: Yes, it supports RS232 and RS485 (Modbus RTU), allowing integration with SCADA and control systems for monitoring and control.
