Megger SPI225 Smart Primary Injection Test System

The Megger SPI225 is a cutting-edge smart primary injection test system designed for accurate testing, verification, and commissioning of protective relays and circuit breakers in medium- and high-voltage electrical systems. Ideal for utility operators, industrial maintenance teams, and field engineers, this system ensures reliable primary current injection for complete protection testing.

Equipped with advanced measurement technology, the SPI225 allows precise verification of relay trip functions, timing, and current characteristics under real operating conditions. Its compact and portable design, combined with an intuitive interface, makes it highly suitable for field use, enabling engineers to perform fast, safe, and accurate tests even in challenging environments.

Key Features:

Smart primary current injection for testing protective relays and circuit breakers
Accurate measurement of trip times, currents, and relay responses
Portable and lightweight design for field applications
Intuitive user interface with digital display and guided operation
Data logging, storage, and reporting for compliance and maintenance records
Safe and reliable operation in medium- and high-voltage networks
Supports a wide range of protective relay types and configurations

Whether used for commissioning, routine maintenance, or troubleshooting, the Megger SPI225 Smart Primary Injection Test System provides fast, precise, and dependable testing to ensure optimal performance and safety of electrical protection systems.

Specifications

1. Electrical Measurement & Testing

Test Type: Primary current injection for protective relay and circuit breaker testing
Current Output Range: 0 – 225 A AC (continuous), short-term up to 300 A
Voltage Output: Nominal up to 5 V AC (for low-resistance load testing)
Trip Time Measurement: Resolution 1 ms
Measurement Accuracy: ±1 % of reading for current, ±1 ms for time
Supported Relays: Overcurrent, differential, distance, and other standard protective relays

2. Functions & Capabilities

Verification of relay trip settings and timing
Primary injection testing of circuit breakers and protection systems
Programmable test sequences for automated testing
Real-time display of current, voltage, and trip times
Data logging and export for analysis and maintenance records
Manual and automatic test modes for flexibility

3. Display & Interface

High-resolution digital display for real-time measurement
Intuitive menu-driven interface with guided operation
LED indicators for status, overload, and safety warnings
USB / PC connectivity for data transfer and advanced reporting

4. Safety & Compliance

Designed for safe operation in medium- and high-voltage environments
Overcurrent and overvoltage protection integrated
Conforms to IEC 60255 and other relevant standards for protective device testing
Rugged, insulated housing suitable for field use

5. Physical & Environmental

Dimensions: Approx. 400 × 250 × 150 mm
Weight: ~11 kg (portable with handles)
Operating Temperature: -10°C to +50°C
Storage Temperature: -20°C to +70°C
Humidity: 0 – 95 % non-condensing
Housing: Rugged, portable, impact-resistant case

6. Accessories (Typical)

Test leads and primary injection cables
Connection clamps for circuit breakers and relays
Carrying case for field portability
User manual and calibration certificate
Optional software for automated testing, data logging, and reporting

Megger SPI225

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