UTXvTR – Computers & Control

Relay UTXvTR

UTXvTR protection is designed to protect 2, 3 and 4-winding transformers with any connection group and gear ratio. It ensures quick, selective and reliable shutdown of all or one of the transformer sides in the event of a short circuit or overload.

The basis for reliable operation of the protection is precise and fast measurement of analog quantities and precise calculation of modules and vectors of phase, differential and braking currents of the transformer.

UTXvTR - Transformer differential current protection

Other Versions:

UTXvZRP series 3

UTXvZ series 3

UTXvRP series 3

UTXvD series 3

UTXvL series 3

µUTXvL series 3

Characteristics of the UTXvTR

a multi-processor digital measurement and decision-making system with three groups of protection settings;
galvanic separation of individual inputs and outputs (analog and digital);
87T – transformer differential current stage with freely configurable stabilization characteristics;
50H/51H(2) – second harmonic detector of residual currents;
50H/51H(5) – fifth harmonic detector of residual currents;
50/51/51A/67 – four non-directional phase overcurrent stages, individually configurable, which sides apply to (4 x I>);
50BF/51BF – LRW circuit breaker reserve system for each side;
74 – station signaling functions UP, AL, AW;
30/74 – possibility of connecting external protection devices to binary inputs;
33 – bay controller function with presentation of the bay status on a graphic display with support for 15 fully programmable switches;
possibility of the stage acting on a signal (activation report);
permanent control of the correctness of the terminal’s internal systems;
three password-protected permission levels;
event registration and disturbance registration (11, 15, 19 currents and 16 digital channels);
function of synchronous sampling of analog inputs, time synchronization and real-time clock;
measurement of quantities – I, dI, Ih and visualization on the controller display with the possibility of transmitting them to the system;
shutdown counters, device operating times;
detailed reporting of the fault clearing process displayed on the display and transmitted to the system;
graphic display and 11-button keyboard and 16 LEDs (15 freely programmable);
8 logical functions with programmable modifiers for implementing simple and complex algorithms;
possibility of visualization, control and configuration via the SAZ 2000 program;
Possibility of cooperation with the Automatic Over Ethernet (AoE) station automation system and the Alice`79 system.

UTX3 devices enable communication in the following protocols:

IEC 61850 – standard via the RJ45 Ethernet port implementing:
- IEEE 802.3 10Base-T/100Base-TX
- QoS (Supports Quality-of-Service)
- VLAN (802.1Q tag-based VLAN function)
- SNTP (RFC 2030, RFC 4330)
- TCP/IP v4
- Equipping with a RedBox redundant transmission module extends the functionality by:
  - 2 x IEEE 802.3 100Base-FX LC connector or optional 2 x IEEE 802.3 10Base-T/100Base-TX
  - PRP parallel redundancy protocol and HSR uninterrupted high availability redundancy – IEEE 62439-3,)
  - RSTP – IEEE 802.1w
CCbus – standard via the RJ45 Ethernet port) communicating with:
- SAZ2000 firmware,
- XSerwer station concentrator,
- local position (diagram),
- other Computers & Control devices via AoE (Automatics over Ethernet)
AAbus – optional – via OPTO interface (single or multimode) for communication with UTXvMSZ or UTXvMR protection,
TRbus – OPTO interface (single-mode) for communication with the second half-set of UTXvZRP or UTXvRP protection,
IEC 870-5-103 – optional – via OPTO interface (multimode)
PPM2 CANBUS – optional – via interfaces: 2xCAN

Relay UTXvTR

UTXvZRP series 3

UTXvZ series 3

UTXvRP series 3

UTXvD series 3

UTXvL series 3

µUTXvL series 3

UTXvTR - Transformer differential current protection

Other Versions:

UTXvZRP series 3

UTXvZ series 3

UTXvRP series 3

UTXvD series 3

UTXvL series 3

µUTXvL series 3

Characteristics of the UTXvTR

Technical Documentation

Karta Katalogowa UTXvTR

Deklaracja Zgodności CE UTX3

Technical Documentation

Karta Katalogowa UTXvTR

Deklaracja Zgodności CE UTX3