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ZX-6000: Optical Fiber Protection Tester for Smart Substations
Introduction
The evolution of smart substations has redefined the requirements for relay protection testing, demanding high-precision, multi-functional tools capable of validating the complex digital communication and synchronization systems that underpin modern power grids. The ZX-6000 Optical Fiber Digital Relay Protection Tester emerges as a purpose-built solution, engineered to align with the State Grid’s intelligent substation relay protection specifications and Smart Substation Technology Guidelines. As a versatile platform for optical digital protection device testing and merging unit (MU) closed-loop validation, it addresses the critical need for reliable, synchronized testing in the era of digital power infrastructure.
Core Functional Capabilities
The ZX-6000 series is designed to support end-to-end testing workflows for smart substation equipment, offering a robust set of features tailored to the unique demands of digital protection systems:
Multi-Protocol Communication Support: Equipped with 4/6/8 pairs of 100M fiber-optic Ethernet interfaces, the tester transmits and receives IEC 61850-9-1/2 Sampled Value (SV), Generic Object Oriented Substation Event (GOOSE), and IEEE 1588 messages, alongside 3/5 pairs of 2–10M fiber-optic ports for IEC 60044-7/8 FT3 (including extended and private formats) SV communication.
Mass Message Processing: The platform supports up to 24 groups of SV messages and 64 groups of GOOSE messages output simultaneously, enabling comprehensive testing of multi-device communication environments.
Synchronization Excellence: Integrated with GPS, IRIG-B code, and PPS synchronization interfaces, the tester supports IEEE 1588 precision time protocol, delivering time-synchronization accuracy of <80ns for IEEE 1588 and <25ns for serial interfaces. This ensures consistent, time-aligned testing across substation and inter-station connections.
Advanced Testing Modes: The device features 12-channel small-signal simulation output for protection device testing, PCAP message replay and editing, abnormal SV/GOOSE/FT3 frame simulation, and network pressure/GOOSE storm testing, enabling validation of both normal and edge-case operating conditions.
Intelligent Terminal Validation: It offers SOE response time testing with accuracy <0.1ms, alongside full SCL (SCD, CID, ICD, NPI) file parsing and auto-configuration for SV and GOOSE messages, streamlining test setup and reducing manual configuration errors.
Technical Specifications
The ZX-6000 series delivers industry-leading performance, with key technical indicators including:
Parameter | Specification |
Fiber-Optic Ethernet Interface | 4/6/8 × 100 Mbit/s, ST multimode (1310 nm), support for IEC 61850-9-1/2/LE, GOOSE, IEEE 1588 |
Fiber-Optic Serial Interface | 3/5 × 2–10 Mbit/s, ST multimode (850 nm), support for IEC 60044-7/8 FT3 |
Synchronous Interface | Built-in GPS, 1 × IRIG-B/PPS optical port (ST multimode, 850 nm), accuracy <400 ns |
Small Signal Output | 12 × (0–7.07 VAC / 0–10 VDC), 1 mV resolution; customizable 4–20 mA output |
Binary I/O | 8 input channels (10–250 VDC) + 8 output channels (idle contact, 0.5 A / 250 V breaking capacity, <10 µs fast output) |
Physical & Environmental | 10.4” LED display (1024×768), AC 220 V ±15% (50 Hz ±10 Hz) power supply, dimensions 380 × 130 × 300 mm, weight 5.5 kg |
The series offers multiple configurations, including the optical-only ZX-6000/ZX-6003 and the digital-analog integrated ZX-6001/ZX-6002, catering to diverse testing needs with varying numbers of optical interfaces and optional analog current/voltage outputs (up to 6 × 0–30 A and 6 × 0–125 V).
Applications in Smart Substation Testing
The ZX-6000 tester serves as an indispensable tool across the full lifecycle of smart substation infrastructure:
Station Commissioning: Validates end-to-end communication and synchronization between merging units, intelligent terminals, and protection devices, ensuring compliance with IEC 61850 standards.
Equipment R&D & Validation: Enables manufacturers to test protection measuring control devices, merging units, and switches under realistic and abnormal operating conditions.
Substation Debugging: Supports closed-loop testing of MU and protection systems, identifying communication errors, synchronization issues, and performance bottlenecks.
Training & Technology Development: Provides a realistic platform for relay protection technicians to master smart substation testing workflows, protocols, and troubleshooting techniques.
Conclusion
As smart substations continue to proliferate, the demand for specialized testing equipment capable of handling digital communication, high-precision synchronization, and multi-protocol validation will only grow. The ZX-6000 Optical Fiber Digital Relay Protection Tester addresses these challenges head-on, combining comprehensive protocol support, industry-leading synchronization accuracy, and versatile testing modes into a compact, user-friendly platform. By enabling reliable commissioning, debugging, and validation of smart substation systems, it plays a critical role in ensuring the safety, stability, and efficiency of modern power grids.
GDZX is a manufacturer of power detection equipment, offering a diverse range of products with comprehensive models and providing professional technical support. Contact us at +86-27-6552607 or +86-17396104357.Website: http://en.gdzxdl.com/
