Power tester PW366Ai

performancenetworkelectric

Overview
PW366Ai (12×20A, 4×300V, 8 fiber optic ports) is a next-generation protection relay test set designed for both conventional and IEC61850-based digital relay testing. It provides high-power, high-accuracy analog outputs, extensive binary I/O and fiber-optic/Ethernet interfaces to automate tests for distance, overcurrent, directional, frequency, time-inverse and differential relays without rewiring. Suitable for power utilities, power plants, relay and panel manufacturers, test laboratories and universities.

Features

• 12 current output channels (20 A each) and 4 voltage output channels (300 V) delivering stable, high-power signals with precision suitable for a wide range of relay tests.
• Rich I/O: 10 binary inputs, 8 binary outputs, 2 counters and 12 low-level outputs for sequence and remote testing.
• Adjustable binary input threshold (0 to ±600 VDC) or potential-free configuration; auxiliary DC supply 0–300 V.
• Eight switchable fiber-optic/Ethernet ports with full IEC61850 support (SV/SMV, FT3 send/receive) and GOOSE publish/subscribe.
• Simultaneous analog and digital quantity output; binary inputs can be captured while GOOSE subscription is active.
• Built-in GPS with IRIG-B and IEEE1588 (PTP) synchronization support for time-coherent tests.
• Supports RIO/XRIO file import to load relay settings into templates and associate them with automated test sequences.
• Multiple free relay templates available for automated testing; MU steady-state, transient, time-synchronization and keep-time checks supported.
• Modular design (6 modules) for easy maintenance and rapid field replacement.

Applications

• Conventional relay testing with current and voltage outputs and digital relay testing via switchable optical fiber/Ethernet ports based on IEC61850.
• Analog output, binary I/O, SMV send/receive and GOOSE publish/subscribe for comprehensive protection verification.
• Simulation of abnormal SMV/GOOSE conditions (frame loss, jitter, sequence reordering, delay deviation, abnormal quality, etc.) for robustness and network fault testing.
• Independent configuration of SV and GOOSE ports for digital protection validation and network analysis.

Signal type table
1 - Analog output + Binary input (used for testing traditional relay)
2 - SMV sending + GOOSE subscription (used for testing full digital relay)
3 - Analog output + GOOSE subscription
4 - SMV sending + Binary input
5 - Analog output + Binary input + GOOSE subscription
6 - SMV sending + Binary input + GOOSE subscription
7 - Analog output + SMV receiving (used for testing merging unit)
8 - SMV receiving + GOOSE subscription (used for network analysis)

Technical specifications

• Model: PW366Ai
• Current outputs: 12 channels, 20 A each
• Voltage outputs: 4 channels, 300 V
• Fiber optic ports: 8 (switchable optical fiber/Ethernet ports)
• Binary I/O: 10 binary inputs, 8 binary outputs
• Counters: 2
• Low level outputs: 12
• Binary input threshold: adjustable 0 to ±600 VDC or potential-free
• Auxiliary DC power supply: 0 to 300 V
• Digital protocol support: IEC61850 (SV/SMV, FT3), GOOSE publish/subscribe
• Synchronization: Built-in GPS; supports IRIG-B and IEEE1588 (PTP)
• File import: RIO and XRIO support for relay setting import into templates
• Supported tests: conventional relay tests (distance, overcurrent, frequency, directional, time-inverse, differential), MU steady-state/transient, time synchronization, keep-time check
• Design: Modular (6 modules) for easy disassembly and assembly