Choosing a protection relay test set is not a procurement decision — it is a long-term engineering commitment. The equipment your team relies on in the field defines the quality of your commissioning, the depth of your diagnostics, and the speed of your maintenance cycles. In this article, we break down what truly separates CONPROVE from every other option available in the global market.
1. Forty-One Years of Focused R&D — Built for One Purpose
Founded in 1984, CONPROVE was designed from the ground up with a single focus: power system protection testing. This is not a broad-spectrum instrumentation company that added relay testing to its catalog. Every line of code, every hardware design decision, and every calibration procedure has been developed exclusively for protection engineers.
Operating from a facility of over 2,000 m², CONPROVE’s four divisions — Electrical Testing Solutions, Software Development, Training and Courses, and Consulting Services — work in full integration. When you invest in a CONPROVE test set, you gain access to the entire ecosystem behind it.
Learn more about CONPROVE: conprove.com/en/about-conprove
2. Direct Access to the Manufacturer — Not a Reseller Chain
When you contact CONPROVE for technical support, you reach the engineers who designed the equipment. Not a tier-1 support agent reading from a script. Not a regional distributor passing your query to a headquarters in another time zone. The people who wrote the firmware and developed the test algorithms are the same people answering your call.
This direct relationship also enables something most competitors cannot offer: custom development. CONPROVE has a proven track record of R&D partnerships with utilities and engineering companies — delivering software features, test automation routines, and specialized capabilities built around specific operational needs.
Technical support: conprove.com/en/technical-support
3. Proven Quality: A Rigorous Standard at Every Stage
Quality at CONPROVE is not a department — it is an embedded process. Every unit produced goes through a multi-stage verification protocol that covers component sourcing, PCB assembly, environmental controls, functional testing, and final calibration.
ESD-Controlled Assembly and Conformal Coating
All components are sourced directly from certified manufacturers or authorized distributors. Assembly takes place in ESD-controlled environments by trained personnel. After functional testing, every PCB receives a conformal coating — providing additional protection against humidity, vibration, and electrical interference in field conditions.
Shock and Vibration Compliance — IEC 60068-2 and IEC 61326-1
Every CONPROVE test set undergoes rigorous shock and vibration testing at accredited laboratories, validating performance under the most demanding transport and field conditions — not just lab environments.
1,000+ Point Calibration with Full Metrological Traceability
CONPROVE’s calibration process evaluates over 1,000 measurement points per unit, each measured 10 times — generating more than 10,000 individual data points per calibration cycle. The resulting certificate carries full traceability to Brazil’s National Calibration Network (RBC/INMETRO), aligned with international metrology standards.
MIL-STD 810F Certified Transport Cases
CONPROVE transport cases are certified to MIL-STD 810F, FED-STD-101C, and ATA 300 — the same standards applied to U.S. military equipment transport. They feature telescopic handles, pressure relief valves, water and dust resistance, and custom-fitted EVA foam inserts.
Proven Quality: conprove.com/en/proven-quality
4. Native IEC 61850 — Beyond Basic Compliance
IEC 61850 support in CONPROVE equipment goes well beyond publishing and subscribing GOOSE and Sampled Values. The platform simulates up to 10 Merging Units simultaneously, operates as PTP GrandMaster or Slave, and supports both IEC 61850-9-2LE and IEC 61869-9 sampling rates.
A key differentiator is the exclusive capability to simulate protocol-level errors — including packet loss, corrupted frames, duplicate packets, synchronization faults, and multiple PTP masters. These capabilities are essential for validating IED behavior under abnormal network conditions and for comprehensive digital substation commissioning.
The CE-7012 model goes further: it injects primary-level signals into LPITs, subscribes to Sampled Values published by the Merging Unit, and performs full closed-loop analysis — including oscillography, packet error statistics, frame timing, and MU synchronization — all within a single hardware platform.
IEC 61850 GOOSE testing: conprove.com/en/power-system-communication-testing/goose-iec-61850
Merging Units testing: conprove.com/en/power-system-communication-testing/merging-units-testing
5. Complete Software Suite — No Modules, No Extra Fees
One of the most significant hidden costs in relay testing is software licensing. Many vendors segment their software into packages — a basic tier for manual testing, an advanced tier for automation, additional modules for IEC 61850, and separate licenses for harmonic generation or distance protection. The result is a platform that appears affordable until the real operational requirements surface.
CONPROVE delivers the complete software suite with every unit — no tiers, no modules, no per-seat licensing. Unlimited installations across your entire team. Full automation for Overcurrent (51/67), Differential (87), Distance (21), Harmonic Restraint, Directional, Under/Over Voltage, Under/Over Frequency, and more.
Relay testing software: conprove.com/en/protection-relay-test/relay-testing-software
6. Remote Generation — Scalable Multi-Unit Control
CONPROVE’s proprietary Remote Generation technology allows multiple test sets to be combined and controlled through a single software interface — summing current and voltage channels across units. This enables differential protection testing with up to 4 windings and 12 current channels without external amplifiers, a significant capability advantage over competitors limited to 3-winding configurations. The same technology is equally powerful for teleprotection testing, where a single operator controls both ends of the scheme and generates a unified consolidated report.
7. Dedicated, Hands-On Training
CONPROVE training is conducted exclusively for the purchasing organization — not as open enrollment sessions shared with other companies. Every participant operates the actual equipment, injects signals into real relays, and tests protection functions hands-on.
Training and courses: conprove.com/en/courses-trainings-conprove
8. Which CONPROVE Model Fits Your Operation?
CONPROVE offers three primary models, each engineered for a specific operational profile:
CE-6707 — Field Maintenance and Secondary Testing
A compact three-phase test set with 3 current channels and 4 voltage channels. High output power for both high-burden electromechanical relays and modern microprocessor-based IEDs. The right tool when weight and portability are operational priorities without compromising precision or IEC 61850 capability.
CE-6707: CE-6707 product page
CE-6710 — Universal Protection Engineering
Six-phase platform with 6 current channels and 4 voltage channels. Designed for Factory Acceptance Tests (FAT), Site Acceptance Tests (SAT), and complex protection schemes including differential, distance, and directional protection. Full IEC 61850/IEC 61869 support with no external amplifiers required.
CE-6710: CE-6710 product page
CE-7012 — Complete Substation Platform (Primary and Secondary)
The only test set that unifies primary and secondary level testing in a single hardware unit. Six current channels and six voltage channels. Performs CT and VT testing, circuit breaker analysis, TTR, winding resistance, saturation curves, and closed-loop testing with LPITs and Merging Units — alongside the full relay and IED test suite.
CE-7012: CE-7012 product page
Conclusion: The Technical Case for CONPROVE
The best relay test set is not necessarily the most recognized brand in your region — it is the one that delivers the deepest technical capability, the most complete software, the most rigorous quality assurance, and the most direct access to engineering expertise when you need it most.
CONPROVE has spent 41 years building exactly that. The result is a platform trusted by utilities, engineering firms, and research institutions across multiple continents — from transmission system operators to inverter-based resource developers navigating the evolving landscape of modern power system protection.
Explore our complete product line: conprove.com/en/all-products
In your experience, what is the most critical factor when selecting a protection relay test set: software depth and automation, native IEC 61850 support, or direct access to the manufacturer’s engineering team? Leave your comment below!
