The E2-TR is a dedicated two-winding transformer protection and control IED; the relay provides complex protection, control and monitoring functions for two-winding power transformers. It is member of the DTRV product type in the EuroProt+ product family.
The DTRV type is designed particularly for protection and control applications of power transformers and generators including generator-transformer blocks. Additionally, the DTRV product type includes a variety of versatile protection functions to meet the users´ most exacting requirements.
Because of the implemented control, measuring and monitoring function, the IED can also be used as a bay control unit.
The EuroCAP configuration tool, which is available free of charge, offers a user-friendly and flexible application for protection, control and measurement functions to ensure that the IED-EP+ devices are fully customisable.
General features
- Native IEC 61850 IED with Edition 2 compatibility
- Scalable hardware to adapt to different applications
- 84 HP or 42HP 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
- Advanced HMI functionality via color touchscreen and embedded WEB server, extended measuring, control and monitoring functions
- 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
- 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.
- Event recorder can store more than 10,000 events.
- Several mounting methods: Rack; Flush mounting; Semi-flush mounting; Wall mounting; Wall-mounting with terminals; Flush mounting with IP54 rated cover.
- Wide range of communication protocols:
- Ethernet-based communication: IEC61850; IEC60870-5-104; DNP3.0 TCP; Modbus TCP
- Serial communication: DNP3.0; IEC60870-5-101/103; MODBUS, SPA
- The EuroProt+ family can handle several communication protocols simultaneously.
- Built-in self-monitoring to detect internal hardware or software errors
- Different time sources available: NTP server; Minute pulse; Legacy protocol master; IRIG-B000 or IRIG-B12X
The E2-TR is a dedicated two-winding transformer protection and control IED; the relay provides complex protection, control and monitoring functions for two-winding power transformers. It is member of the DTRV product type in the EuroProt+ product family.
The E2-TR relay provides a variety of versatile protection functions along with the main transformer differential protection, such as 3ph, Io and I2 overcurrent protection, overload protection, restricted earth-fault protection etc.
Sensitive restricted earth-fault protection (REF) is the final element in the overall differential protection system, which detects even single phase-to-ground faults close to the grounded neutral of the transformer.
The multiple instances of the implemented three-phase and residual overcurrent functions are provided for the segregated protection of both transformer windings.
Furthermore, several voltage-based protection functions are available for one transformer winding based on the three-phase voltage measurement. The connections of the voltage measurement depends on the current application.
The E2-TR transformer protection relay can support double-breaker terminals on any side of the transformer such as breaker and a half or ring bus topology.
Automatic phase shift and turns ratio compensation for all types of transformer winding connections.
It can be used as a back-up protection relay for downstream equipment (e.g. feeders, cables).
The IED includes a wide range of control and supervisory functions, which provide full control and user-defined interlocking schemes for the primary switchgear at the substation.
scope of application
- 2-winding transformer protection and control device with main transformer differential protection and several additional protection functions;
- The versatile protections functions can provide back-up protection relay for downstream equipment (e.g. feeders, cables etc.),
- Protection for all kinds of power transformers (including auto-transformers),
- 1-/3-phase tripping and support for double breaker terminals such as breaker and a half or ring bus topologies
- Three-phase transformer differential protection:
- Automatic phase shift and turns ratio compensation of the transformer,
- 2nd and 5th harmonics restraint for transformer inrush and overexcitation detection,
- Residual current elimination feature is available if there is a neutral grounding transformer in the protected zone on the secondary side of the transformer,
- Sensitive restricted earth-fault protection,
- Several voltage-based protection functions are available through the three-phase voltage measurement,
- Current unbalance detection of Current Transformers,
- Programmable interlocking schemes,
- Optional external units:
- 28 input/ 5 output tap changer transcoder (TRCS),
- Remote I/O unit (RIO),
- Optional transducer I/Os (RTD/mA),
- Optional impedance protection
The E2-TR configuration measures three phase currents, the residual current component from both sides of a two-winding, three-phase transformer and, additionally, three phase voltages. These measurements allow, in addition to the current- and voltage-based functions, directionality extension of the residual overcurrent function.
The main protection functions are the transformer differential protection and the restricted earth-fault protection functions. Based on the voltage measurement, the frequency is also evaluated to facilitate frequency-based protection functions.
The additional protection functions can provide back-up protection relay for downstream equipment (e.g. feeders, cables etc.).
| Type description | version | Format | Date | Size |
|---|---|---|---|---|
| Transformer protection & control | 1.0 | 05/04/2019 | 2.08 MB | |
| Hardware Guides | version | Format | Date | Size |
| Hardware description | 2.00 |
10/02/2023
|
4.24 MB | |
| Maintenance guide | 2.0 | 18/11/2022 | 769.82 KB | |
| Application Guides | version | Format | Date | Size |
| Operating Manual and Troubleshooting Guide FW version 2.8 | 1.4 |
14/03/2023
|
3.59 MB | |
| IEC61850 documents | version | Format | Date | Size |
| Protocol Implementation Extra Information - PIXIT | 1.1 | 20/03/2017 | 259.27 KB | |
| Protocol Implementation Conformance Statement - PICS | 1.1 | 20/03/2017 | 261.09 KB | |
| Model Implementation Conformance Statement - MICS | 1.0 | 21/05/2012 | 864.71 KB | |
| Configuration Descriptions | version | Format | Date | Size |
| E2-TR configuration description | 1.0 | 24/03/2013 | 4.40 MB | |
| E2-TR_H product configuration options | 4.2 | 22/11/2022 | - | |
| E2-TR_F product configuration options | 4.2 | 13/01/2023 | - |
Please always refer to a valid Order Code when placing an order.
The Order Code page can be opened by clicking the link below.
| E2-TR_H: |  |
E2-TR_F: |  |