Line Differential Protection Relay

  • PROTECTA (HUNGARY)

The E2-Line device is a combined distance and line differential protection and control IED. The relay provides complex protection, control and monitoring functions for transmission overhead lines and cables. It is a member of the DTVA product type in the EuroProt+ product family. The EuroProt+ family complex protection – in respect of hardware and software – is a modular device. Because of the modular architecture, the modules are assembled and configured according to the user’s requirements; from that point on, the software determines the functions.

The protection relays provide a variety of versatile protection functions along with the main line differential protection (87L) such as distance protection (21), teleprotection schemes (POTT, PUTT etc.), current protection (50/51, 50/51N, 67/67N, 46/46BC), voltage protection (27, 59, 47), frequency protection (81U/81O/81R), power protection (32/37), power swing/out of step detection (68/78), switch on to fault protection (SOTF), breaker failure protection (50BF). The scope of functions is supplemented with the automatic reclosing function (79) with synchro-check/synchro-switch feature (25). CT errors, CT saturation, voltage transformer supervision and dead line detection function optional charging current compensation are implemented in the configuration for increased stability and sensitivity. Because of the implemented control, measuring and monitoring function, the IED can also be used as a bay control unit.

Product details

GENERAL FEATURES

  • Native IEC 61850 IED with Edition 1 & 2 compatibility
  • Module layouts with options 42 or 84 HP wide rack size (height: 3U)
  • 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 setting values, measurement values, event and fault information (timestamp, function block, fault phase, fault current...)
  • 8 setting groups available as default. The number of setting groups can be up to 20 as user’s requirement
  • Enhanced breaker monitoring and control
  • High capacity disturbance recorder (DRE) and event logging in non-volatile memory:
    o DRE can store more than 64 records.
    o Each DRE recording can be configured up to 32 analogue and 64 digital signal channels with duration up to 10s and sampling rate up to 2kHz.
    o Event recorder can store more than 10,000 events.
  • The records can be read out from IED in the standard COMTRADE file format (IEEE Std C37.111) via exist communication connection (such as IEC61850) or even examined online. Every single record stored in 3 files with the same name and the following extensions: .dat, .cfg,.inf
  • Several mounting methods: Rack; Flush mounting; Semiflush mounting; Wall mounting; Wall-mounting with terminals; Flush mounting with IP54 rated cover.
  • Wide range of communication protocols:
    o Ethernet-based communication protocol: IEC61850, DNP3.0 TCP, IEC60870-5-104, Modbus TCP
    o Serial communication protocol: DNP3.0, IEC60870-5- 101, IEC60870-5-103, MODBUS, SPA
  • Legacy network based protocols via 100Base-FX and 10/100Base-TX (RJ45)
  • Optional communication ports: Fiber Ethernet (MM/ST, SM/FC), RJ45, Serial POF, Serial glass fiber, RS-485/422
  • Handling several communication protocols simultaneously
  • Built-in self-monitoring to detect internal hardware or software errors
  • Time synchronization protocol: NTP/SNTP, Minute pulse, Legacy protocol, IRIG-B
  • Integrated advanced cyber security - Conformity with the Cyber Security requirements in accordance with NERCCIP, IEEE 1686, BDEW Whitepaper and IEC 62351-8 standard and recommendation. Passwords are required when logging into the device for: access, control, setting, manage,...

SCOPE OF APPLICATION

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