The DTRV product type is a member of the EuroProt+ numerical protection relay, made by Protecta Co. Ltd. The EuroProt+ complex protection in respect of hardware and software is a modular device. The modules are assembled and configured according to the requirements, and then the software determines the functions.
The dedicated devices are designed to be the main protection and control IED for two and three winding power transformers, including auto-transformers and special railway transformers. The protection relays provide a variety of versatile protection functions along with the main transformer differential protection(87T), such as restricted earth-fault protection(87N), 3ph, Io and I2 overcurrent protection(50/51, 50/51N, 46), overload protection(49), breaker failure protection(50BF). Voltage and frequency related protection functions as 27, 59, 24, 47, 81O, 81U can also be integrated if required. Because of the implemented control, measuring and monitoring function, the IED can also be used as a bay control unit.
♦ Native IEC 61850 IED with Edition 1 & 2 compatibility.
♦ 84 HP or 42HP wide rack size (height: 3U) with several mounting methods: Rack; Flush mounting; Semi-flush mounting; Wall mounting; Wall-mounting with terminals; Flush mounting with IP54 rated cover.
♦ The pre-defined factory configuration can be customized to the user’s specification with the powerful EuroCAP tool
♦ Flexible protection and control functionality to meet special customer requirements.
♦ Different HMI Types: advanced HMI with color touchscreen and black-and-white display with 4 tactile push buttons. An embedded web server and extended measuring, control and monitoring functions are also available for both types.
♦ User configurable LCD user screens, which can display SLDs (Single Line Diagrams) with switchgear position indication and control as well as measuring values and several types of controllable objects.
♦ Various protection setting groups available, 8 setting groups available.
♦ Enhanced breaker monitoring and control.
♦ High capacity disturbance recorder (DRE) and event logging (data is stored in non-volatile memory):
° DRE for up to 32 analogue and 64 digital signal channels with duration up to 10s and sampling rate up to 2kHz.
° Event recorder can store more than 10,000 events.
♦ Wide range of communication protocols:
° Ethernet communication: IEC 61850; IEC 60870-5-104; DNP3.0 TCP; Modbus TCP
° Serial communication: DNP3.0; IEC 60870-5-101/103; MODBUS, SPA.
♦ Legacy network based protocols via 100Base-FX and 10/100Base-TX (RJ45). Optional communication ports: Fiber optical Ethernet (MM/ST, SM/FC), RJ45, Serial POF, Serial glass fiber, RS-485/422.
♦ Handle several communication protocols simultaneously.
♦ Built-in self-monitoring to detect internal hardware or software errors.
♦ Different time sources available: NTP/SNTP server; Minute pulse; Legacy protocol master; IRIG-B.
The number and the functionality of the members of each product type is put together according to the application philosophy, keeping in mind the possible main usages. The available configurations of the DTRV type for transformers are listed in the table below: