Price of Integrated Relay Protection Tester

Relay Protection Integrated Testers typically range from $15,000 to over $100,000 depending on model, features, and manufacturer.

Overview of Relay Protection Integrated Testers

Relay protection testers are specialized instruments used to test, calibrate, and verify protective relays in power systems, including electromechanical, digital, and microprocessor-based relays . They simulate real-world fault conditions such as overcurrent, undervoltage, phase imbalance, and short circuits, ensuring the reliability and safety of electrical networks . Advanced models also support multi-phase testing, primary injection, and communication with test management software for automated reporting .

Popular Models and Features

• MTS-5100 (Doble Engineering): Integrated system for testing single-phase to multi-terminal relay schemes, includes all necessary current and voltage channels, portable with a lightweight carry case, and supports realistic power system simulations .
• CMC 356 (OMICRON): Universal relay test set with six current sources, capable of testing high-burden electromechanical relays, supports primary injection, and includes modular software for automated testing .
• ARTES Series: Compact, robust systems for functional testing of all types of protection relays, suitable for field and lab use, with multiple voltage and current outputs for three-phase testing .

Price Considerations

The cost of a relay protection integrated tester depends on several factors:

• Number of channels and output power: Higher current and voltage outputs for primary injection increase cost.
• Supported relay types: Devices capable of testing digital, numerical, and multifunction relays are more expensive.
• Software and automation features: Advanced test management software and automated test sequences add to the price.
• Portability and ruggedness: Field-ready, lightweight, and robust units may cost more than lab-only models. Typical price ranges:
• Basic single-phase or low-power testers: $15,000–$30,000
• Advanced multi-phase, digital relay testers: $40,000–$80,000
• High-end universal systems with full automation and primary injection: $80,000–$120,000+

Purchasing Tips

• Contact authorized distributors or manufacturers (e.g., Doble, OMICRON, Kocos) for official quotes.
• Verify that the tester's voltage, current, and frequency specifications match your relay requirements to avoid inaccurate results or equipment damage .
• Consider after-sales support, calibration services, and software updates, which can affect total cost. In summary, while exact prices vary, expect to invest tens of thousands of dollars for a reliable, integrated relay protection tester, with high-end models exceeding $100,000 depending on capabilities and features .