Remote Terminal Units F-RLY600CR

Overview

Remote terminal units are mainly used in Ring Main Units (RMU), Switching station and sub-station, which monitors the field digital and analog parameters and transmits data to a SCADA master station.

They consist of many circuit cards including a MCU or processing with communication interfaces, and one or more of the following: analog input (AI), digital input (DI), digital output (DO) cards, with a small database for alarming, filtering, trending and other functions complemented with some basic task, and support IEC 61131-3 programming standard for programmable logic controller as well.

Our developed F-RLY600CR remote terminal unit with complete functions can be matched with RMU and substation, and can provide customers with a variety of automation solutions, complying with IEC international standards.

Feature and Benefit

Programmable Logic

Programmable logic builds up functions by using input, output, and control block diagram, and is used to perform logic desired by users. Through programmable logic tool, various functions such as signal input, command output, BATS solution, inter-lock can be accomplished. Programmable logic is according to IEC 61131-3 standard.
Modular Designation

With modular design, MCU, power supply, ACAI, DCAI, digital input and digital output are realized by independent cards separately, which is conductive to the extension and replacement of cards at customer sites, saving customer’s costs and maintenance time.
Cybersecurity Management

The remote terminal unit is compliant with IEC 62351 standard, it offers SCADA communication security, and role based access control features to reduce risks from cyber attacks. Secure communication in public networks saves time and money and fulfil highest cyber security standard.
Goose Communication

With the support of Horizontal GOOSE Communication, a variety of intelligent distributed distribution network solutions can be realized without relying on the master system, which is applicable to various network topology, and enables the grid to self-heal, meeting customers' demand for a grid with higher stability and reliability.

Technical Parameter

Technical Description:

HARDWARE
Power Supply	24Vdc (+20%~-15%)
Standby Power	≤10W
Rated Frequency	50/60Hz
ACAIS-4U4I	4 channels voltage sensor input, 4 channels current sensor input
ACAIS-8I	8 channels current sensor input
DCAI-8	8 channels dc analog input
DI-28+T2	28 channels digital input, 2 channels temperature sensor input
CO-16+Dmy	16 channels digital output, capacity is 5A@30VDC, 1 CB simulator
MCU-1 (For Substation)	2RS232, 2RS485, 5RJ45(1000Mb), 1USB type C for maintenance, 1*IRIG-B
MCU-2 (For RMU)	2RS232, 2RS485, 3RJ45(100Mb), 1USB type C for maintenance, 1*IRIG-B
Control Mode	Local/Remote
IP Protection Degree	IP20
Structure	Frame rank
Operation Temperature	-40~+70°C
Storage Temperature	-40~+85°C
MEASUREMENT
Current Input	Accuracy: ±0.2% (≤2In)
Voltage Input	Accuracy: ±0.2% (≤1.25Un)
Active Power	A-Phase, B-Phase, C-Phase, 3-Phase Total, Accuracy:±0.5%
Reactive Power	A-Phase, B-Phase, C-Phase, 3-Phase Total, Accuracy:±0.5%
Active Energy	A-Phase, B-Phase, C-Phase, 3-Phase Total, Accuracy:±0.5%
Reactive Energy	A-Phase, B-Phase, C-Phase, 3-Phase Total, Accuracy:±0.5%
Apparent Energy	A-Phase, B-Phase, C-Phase, 3-Phase Total, Accuracy:±0.5%
Power Factor	A-Phase, B-Phase, C-Phase, 3-Phase Total, Accuracy:±0.5%
Frequency	40-72Hz, Accuracy:±0.02Hz
Current THD	Up to 15th Total Harmonic Distortion for Each Phase
Voltage THD	Up to 15th Total Harmonic Distortion for Each Phase
Analog Input (DC)	Accuracy: ±0.1%
Temperature	Accuracy: ±0.5℃, resolution:±0.1℃
COMMUNICATION
Protocol	IEC101/104, DNP3.0 TCP/Serial level 3, IEC103, MODBUS
Protocol	IEC61850 MMS and GOOSE
DISTRIBUTION AUTOMATION
BATS	Busbar Automatic Transfer Switch Function
DATA HANDLING
Sequence of Event	10,000 events, Resolution: 1ms
Disturbance Recorder	Up to 128 wave-forms
Historical Data	30 days (5 mins interval)
SECURITY
Cyber security	According to IEC 62351-3/-5
TIME
Synchronization	Protocol: 10ms; IRIG-B: 0.1ms; SNTP: 2ms; Without synchronization: 2ppm