The Promoda Motor Protection Control & Relay Panel (CRP) is an advanced protection and monitoring solution designed for high-voltage and medium-voltage motor feeders in industrial power systems. The panel integrates modern numerical protection relays with dedicated control and supervision circuitry to ensure reliable protection of critical motors operating in demanding industrial environments.
Large motors used in industries such as steel plants, cement manufacturing facilities, refineries, and process industries require sophisticated protection systems to prevent equipment damage and operational disruptions. The motor protection CRP panel continuously monitors electrical parameters such as current imbalance, thermal overload conditions, and fault currents to ensure the safe operation of connected motors.
The panel architecture follows a functional segregation philosophy, where protection, control, annunciation, and metering functions are organized into dedicated sections. This structured design improves operational clarity and simplifies maintenance and troubleshooting.
Protection relays installed in the panel provide functions such as thermal overload protection, stall protection, overcurrent protection, and earth fault detection, ensuring comprehensive protection for large industrial motors. Event recording and fault logging capabilities enable operators to analyze system disturbances and improve operational reliability.
The panel is designed with a floor-mounted sheet-steel enclosure and provides front access for operation and rear access for wiring and maintenance. The system supports 110V or 220V DC control supply and incorporates trip circuit supervision to ensure reliable breaker operation during fault conditions.
Manufactured according to industry standards and best engineering practices, the Promoda Motor Protection CRP panel is suitable for installation in industrial substations, process plants, and captive power distribution systems where dependable motor protection and system monitoring are essential.
Key Highlights
Dedicated Motor Protection System
Designed specifically for protecting large industrial motors connected to medium voltage feeders.
Numerical Relay Technology
Advanced protection relays provide precise monitoring and fault detection.
Functional Panel Segregation
Separate sections for protection, control, annunciation, and metering functions.
Event and Fault Recording
Built-in disturbance recording helps analyze system faults and operational events.
Reliable Trip Circuit Operation
Dual trip circuit supervision ensures dependable breaker tripping during faults.
Industrial Substation Integration
Compatible with industrial power distribution and motor feeder switchgear systems.
Panel Architecture
The control and relay panel is divided into functional sections to improve operational clarity and maintenance accessibility.
- Protection Section
Contains numerical protection relays responsible for monitoring motor operating conditions. - Control and Supervision Section
Provides breaker control switches, status indication, and supervisory circuitry. - Annunciation Section
Displays alarms and system fault indications. - Metering Section
Includes meters and indicators for monitoring electrical parameters.
Major Components
- Numerical Protection Relay
Provides comprehensive motor protection functions. - Trip Circuit Supervision Module
Ensures reliable breaker tripping operation. - Control Switches and Indicators
Provide operator control and status feedback. - Annunciation System
Displays alarm and fault signals. - Terminal Blocks
Used for wiring and external connections.
| Parameter | Specification |
|---|---|
| Panel Type | Motor Protection Control & Relay Panel |
| Protection Functions | Thermal, Stall, Overcurrent, Earth Fault |
| Relay Type | Numerical Protection Relay |
| Control Supply | 110V / 220V DC |
| Panel Construction | Floor mounted sheet steel enclosure |
| Access | Front operation, rear wiring access |
| Functional Sections | Protection, Control, Annunciation, Metering |
| Trip Circuit Supervision | Available |
| Panel Height | Approx. 2200 mm |
| Wiring | FRLS copper control wiring |
| Degree of Protection | IP42 / IP54 |
| Standards | IEC compliant protection system |
Motor Protection Reliability
- Advanced protection for large industrial motors
- Continuous monitoring of motor electrical parameters
- Early detection of thermal overload conditions
- Protection against motor stall and abnormal current conditions
- Improved motor life and operational reliability
Protection Relay Capabilities
- Overcurrent protection (50/51)
- Earth fault protection (50N / 51N)
- Thermal protection (49)
- Motor unbalance protection (46)
- Event recording and disturbance analysis
Panel Engineering Design
- Floor mounted sheet steel enclosure
- Modular panel design for easy system integration
- Clear mimic diagram with breaker status indication
- Separate DC supply for protection and control circuits
- Structured wiring layout for simplified maintenance
Improved Motor Reliability
- Protects motors against overload and stall conditions
- Reduces downtime caused by electrical faults
- Improves motor operational life
- Ensures safe motor operation in industrial plants
Compared to Conventional Protection Systems
- Higher accuracy with numerical relay protection
- Event and fault recording capability
- Improved monitoring of electrical parameters
- Advanced fault diagnostics
Key Industry Sectors
- Steel and metal processing industries
- Cement manufacturing plants
- Oil and petrochemical facilities
- Power generation plants
- Large industrial manufacturing units
Common Installations
- High voltage motor feeder panels
- Industrial motor control substations
- Process plant electrical distribution systems
- Captive power plant motor protection systems
- Large pump and compressor motor protection panels
