Advanced Electrical Protection Relay Training System

Advanced Electrical Protection Relay Training System

???? Training Scope

Prepare the next generation of electrical engineers with hands-on understanding of real-world power system protection. This modular system is designed to provide in-depth knowledge and practical skills in:

• Electrical Power Generation, Transmission & Distribution

• Energy Consumption and Fault Analysis

• Protective Systems and Relay Coordination

• Current & Voltage Transformers in Protection

• Protection of One & Two Transmission Lines

• Smart Grid Integration and Plug-in Simulations

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????️ System Description

Power system protection is vital to ensuring a safe, stable, and reliable electrical network. This comprehensive training platform introduces the fundamentals of protective relays and allows for simulation and analysis of real-world fault conditions.

Faults in power systems—such as short circuits, overvoltages, and insulation failures—cannot be fully prevented, but they must be detected and cleared immediately to avoid equipment damage and blackouts. This training system allows users to study, simulate, and respond to such faults using industrial-grade protection devices.

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???? Hands-On Learning Objectives

• Understanding the operation principles of protective relays

• Configuration and parameterisation of protection settings

• Practical setup of protection circuits with circuit breakers

• Triggering relay operation under simulated fault conditions

• Exploring coordination logic and cascading failures

• Studying effects of reverse power, over/undervoltage, and overcurrent

• Comprehensive analysis of fault response and system recovery

• Relay Test Panels with Fault Simulation Switches

Components:

✅ High-Speed Distance Protection Relay

Ideal for short-circuit protection in high-voltage systems with full simulation capability.

Functions Include:

• Distance Protection (ANSI 21/21N), 6 zones

• Teleprotection (ANSI 85-21)

• Over/Undervoltage (ANSI 59, 27) & Frequency Protection (ANSI 81)

• Thermal, Backup Overcurrent & STUB-bus protection

• Trip circuit supervision, Lockout & Inrush

Technical Highlights:

• Voltage: 80–125V | Frequency: 50/60Hz | Current: 1A

• Inputs/Outputs: 4mm safety sockets

• Communication: Ethernet EN100 | PC Software included

• Weight: 5kg

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✅ Earth Fault Voltage Relay

Detects earth-faults in isolated or grounded systems (ANSI 59N).

• Dual potentiometers for sensitivity & time settings

• RS-485 Interface with optical isolation

• Status indicators with TEST feature

• Power: 1VA | Dimensions: 297×114×125mm | Weight: 1kg

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✅ Directional Power Relay

• ANSI 32 and 37

• Integrated self-test and PC-controlled settings

• Adjustable for wide voltage and current ranges

• Output relay rated for 5A / 1250VA

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✅ Over/Undervoltage Relay

Digital relay for monitoring voltage ranges (ANSI 27/59).

• Voltage: 100–400V | Power: 3.5VA

• Adjustable hysteresis, trip & release timing

• Optical RS-485 interface for PC monitoring

• Dimensions: 297×114×125mm | Weight: 1kg

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✅ Directional Overcurrent Relay

Includes inverse and definite-time characteristics (ANSI 50/51, 67).

• Adjustable current/time thresholds

• Manual and PC parameter setting

• Dimensions: 297×456×125mm

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✅ Differential Protection Relay

Advanced system for transformer and machine protection.

Functions Include:

• Transformer differential (ANSI 87T), Inrush (ANSI IN), Earth Fault (ANSI 87TN)

• Thermal (ANSI 49T), Circuit Breaker Failure (ANSI 50BF), Phase Imbalance (ANSI 46)

• Fully configurable characteristics and vector group

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✅ Digital Power Meter with SCADA Option

Three-phase network analyzer with Ethernet and graphical display.

• Voltage, Current, Frequency, Harmonics

• Peak/Average, Logging & Smart Grid Support

• Multilingual GUI

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✅ CEE Distribution Panel

• 2x 400V sockets + 1x 230V socket

• Built-in circuit breaker (16A)

• Plug-and-play for bench/table use

• Dimensions: 510×120×110mm | Weight: 5kg

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✅ Three-Phase Power Supplies

• Fixed & Adjustable Outputs up to 450V/8A

• Designed for educational and laboratory use

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✅ High-Voltage Transmission Line Simulator

• Simulates up to 300 km overhead line

• Supports open line, short-circuit, matched-load analysis

• Dimensions: 297×456×125mm | Weight: 6kg

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✅ Three-Phase Variable Ohmic Load

• Adjustable resistors: 3×750Ω / 3×2A

• Star, Delta, Series, Parallel configurations

• Dimensions: 297×456×125mm | Weight: 8kg

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✅ Transformer for Transmission Line

• Input: 3×400V | Output: 3×30V

• Power: 1kVA (2kVA for short time)

• Includes overload protection

• Weight: 11kg

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✅ Three-Phase Current Transformer

• Input: 2.5A | Output: 1A

• Accuracy class 1 | FS10 overload factor

• Dimensions: 297×114×150mm | Weight: 6kg

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✅ Voltage Switching & Control Module

• Manual/Auto switching (200–400V)

• Signal indicators and push-button control

• Dimensions: 297×114×95mm | Weight: 2kg