Nthytronic Group iRTUe Modular I/O Expansion Unit

Product Overview

IRTUe is a modular intelligent I/O expansion unit launched by Nthytronic Group, used to upgrade ordinary main devices into high-performance I/O stations, targeting intelligent substations and distribution automation scenarios.

Core value: Distributed data collection+high-speed GOOSE communication, replacing traditional hard wiring and reducing renovation costs.

Deployment method: DIN rail installation, IP30 protection, suitable for harsh environments in power cabinets.

Core communication capability

1. High speed GOOSE

Protocol: IEC 61850 GOOSE

Processing latency:<3ms, meets P2 performance level

Mechanism: publish/subscribe mode, supporting VLAN and priority tagging

Application: Interlocking, Load Unloading, Quick Protection Logic

2. Interface and Protocol

Interface type specification

Ethernet dual 10/100M, RJ45/fiber ST/SC

Serial port 1 × RS422 (EXP422)

Protocol GOOSE, Modbus RTU

NTP/PTP timing, accuracy 1ms

I/O configuration and specifications

1. 8 standard models

Model I/O combination

iRTUe#D1D1 48×DI

IRTUe # R1R1 16 × Relay

iRTUe#A1A1 16×AI

IRTUe # D1R1 24DI+8 relay

iRTUe#D1A1 24DI+8AI

IRTUe # R1A1 8 relay+8AI

IRTUe # 00Q1 3U+3I AC acquisition

2. Key parameters

Digital input DI

Maximum: 48 channels/unit

Isolation: 2.5kVrms

Voltage: 24/48/125/220Vdc

Timestamp: 1ms accuracy

Relay output DO

Maximum: 16 channels/unit

Isolation: 6kVrms

Contact: Dry contact

capacity 8A@220Vac ；8/0.3/ 0.12A@30 /110/220Vdc

Simulate input AI

Maximum: 16 channels/unit

Specification: 4-20mA

Accuracy: ± 0.15%

Isolation: 2.5kVrms

Exchange and collect AC

3 voltage channels+3 current channels

Measurement: voltage, current, phase, frequency, harmonics

Electrical and Environmental Characteristics

Parameter values

Supply voltage wide version: 32-250Vdc; 24V version: 19.5-60Vdc

Isolation voltage withstand power supply: 2.5kVrms

MTBF 177000 hours

Working temperature -25 ℃~+70 ℃

Size 173 × 78.4 × 137mm (H × W × D)

CPU 32-bit, 40MHz

Standards and Compliance

Electricity standards: IEC 61850-3, IEC 60870-2-1, IEC 60255

EMC standard: IEC 61000-4-2/3/4/5/6/8/9/10/12 full series

Environmental testing: IEC 60068 vibration, impact, temperature and humidity all inclusive

Configuration and Deployment

Configuration: Panel dialing to set address, iConf tool to configure GOOSE multicast

Logical node: default GGIO, firmware upgradable, supports custom SCL

Application: Bay layer I/O expansion, renovation of old substations, load shedding system

Key issues

Question 1: What are the IEC 61850 GOOSE performance indicators for iRTUe? Why can it handle substation interlocking and load unloading?

answer:

The GOOSE processing time of iRTUe is less than 3ms, meeting the performance requirements of IEC 61850 Type 1A Class P2; Adopting a publish/subscribe architecture, supporting VLAN and 802.1Q priority, with communication link and data integrity self-test, it can replace traditional hard wiring to achieve millisecond cascade locking and fast load unloading, and its reliability and response speed meet the requirements of power grid safety.

Question 2: What is the I/O scalability of iRTUe? How many channels of data collection and output can be achieved at most?

answer:

IRTUe adopts a dual I/O card design, with a maximum capacity of:

Digital input DI: 48 channels

Relay output DO: 16 channels

Analog input AI: 16 channels

Communication collection AC: 3U+3i

We provide 8 standard configurations and support cascading expansion for multiple units, which can flexibly meet the full data acquisition needs of small and medium-sized substations.

Question 3: Why is iRTUe suitable for renovating old substations? What are the advantages compared to traditional RTUs?

answer:

Dual protocol compatibility: Supports both IEC 61850 GOOSE and Modbus, and can interface with new and old master devices.

No hard wiring: GOOSE replaces cables, significantly reducing construction and renovation costs.

Plug and play: dial-up+software configuration, fast deployment, and reconfigurability.

Strong adaptability: * * -25~+70 ℃ * * wide temperature, 19.5~250Vdc wide voltage, suitable for old station environments.