Automatic Voltage Regulator

  • :Protecta/EU
  • :18 months from date of shipment or on request

The DTRV E7-TR device 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 E7-TR is designed to give control over the tap- changer of power transformers. It also includes a powerful Automatic Tap Changer Control function (manual control included) along with voltage protection functions.

Product details

GENERAL FEATURES

♦ 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: IEC61850;IEC60870-5-104;DNP3.0 TCP;Modbus TCP
      ° Serial communication: DNP3.0; IEC60870-5-101/103; 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.

SCOPE OF APPLICATION

  • Automatic or manual voltage regulation (tap changer control) for transformers
  • Additional voltage protection functions.
  • Tap changer supervision: 6bit tap changer positiondefinition (Binary, BCD, Gray, mA)
  • Optional external units: 28 input/ 5 output tap changer transcoder (TRCS) Remote I/O unit (RIO)
  • Up to 4 transformers can be operated in parallel

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