Rơ le bảo vệ – Châu Âu

The great focus today is high-quality cost-effective intelligent Electronic Devices (IEDs) that help power producers and distributors. Our aim is to assist them in achieving results in most efficient way.

The newest member of VINNOTEK IEDs is DRAGON family that combines a lot of “State of the art” decisions in a single IED with flexible construction and potentialty.

·     Simple, cost-effective and compact design with fully integration of all neessary protection and control functions;

·     Midular construction that allows flexible extension of I/Os;

·     EMC, Insulation, Mechanical and Climatic type tests according to the current IEC/EN standards;

·     High avaliability with less maintenance because of the efficient self-monitoring.

·     80 samples per cycle scan-rate;

·     Local Human Machine Interface (HMI) through the front panel keypad, LEDs and LCD numerical/graphical display;

·     Simple and user friendly PC based Man Machine Interface (MMI) dialog;

·     Configuration and settings via portable PC and MS Windows compatible service MMI program (single program for the entire family);

·     IEC 61131 flexible programming allowing new protection and control functions to be added without any influence on the physical wiring;

·     Variety of time synchronization protocols: SNTP, IEEE1588 (PTPv2), IRIG-B, 1PPS;

·     Communication with SAS upper level via different interfaces including Ethernet LAN with electrical / fiber optic connections;

·     Communication protocols according to IEC 61850 ed1/ed2, IEC 60870-5-104, IEC 60870-5-103, DNP-3 and Modbus RTU/TCP;

·       Integration of Power Transformer “condition monitoring” and AVR functionalities including life time supervision;

·       Fully application of Digital substation concept including availability of IEC 61850 based Process bus, Merging units and Intelligent I/O boxes

Application

DRAGON family includes a lot of protection functions for different applications:

·       Main and/or backup protection for overhead lines, underground cables, transformers, motors and Busbar;

·       Suitable for EHV, HV and MV network; Industry, Transport, Distribution Generation (Wind farms, Solar parks etc.).

·       Applicable for all types of neutral grounding (isolated, solid, resistace or resonance);

DRAGON family

Protection and control devices

Feeder protection

–        Overcurrent protection and control RFI D

Line protection

–        Distance protection and control RLI Dd

–        Differential and Distance protection an control RLI DI

Transformer protection

–        Transformmer differential protection and control RTI D

Motor protection

–        Motor differential protection and control RMI D

Busbar protection

–        Centralized Busbar protection RBP Dc

–        Decentralized Busbar protection RBP Dd

–        Bay controller with control and monitoring RTU D

–        Bay controller with control, monitoring and protection (optional) RTU Dp

Transformer monitoring and AVR set RTU Dt

RTU Dt set is applicable for medium and large oil immersed power transformers with Onload tap changers (OLTC).

The set provides safe, reliable, easy to use and cost effective power transformer condition monitoring and AVR functionality. The set is equipped with remote modules which are suitable for indoor and outdoor installation near to the Power Transformer.

Voltage regulation functionality provides:

·       Automatic and manual OLTC control of a single power transformer

·       Automatic and manual OLTC control of parallel operating power transformers

·       Three-phase overcurrent and under / over voltage blocking

In case of parallel operating transformers RTU Dt is able to communicate via IEC 61850 GOOSE messages (IEC 61850-81 protocol). Complete exchange of the necessary voltage control data-analogue as well as binary, is executed via GOOSE.

Annunciator RAU D

RAU-D is designed to be used for alarm and warning signalization in Conventional and Digital substation automation projects. RAU-D is able to support IEC 61850 and to be part of SAS.

Hardware

Basic (1/2 19”) and extended (1/1 19”) construction with graphical display – see Fig. 1 and Fig.2. Alpha – numerical display is also available.