Fig. 8/1 SIPROTEC 4. 7UT6 differential protection relay for transformers, generators, motors and busbars. 7UT/ 7UT 7UT LS. P. a The numerical protection relays 7UT6 are primarily applied transformers. 7UT 2 windings. 7UT/ 2 up to 3 windings. 7UT 2 up to 5 windings. Manual This manual is valid for SIPROTEC ® 7UT differential protection; firmware bar protection for up to seven feeders with one single 7UT relay.

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With external temperature monitoring boxes thermo-boxes temperatures can be measured and monitored in the relay.

Overcurrent and Feeder Protection go. Tools Digital Grid Digital Grid. Description Functions Downloads Configurator. The relays provide easy-to-use local control and automation functions. The protection relay can be parameterized for use with threephase and single-phase mmanual.

Products for Protection go.


Search Search term s Search. Cyber Security Products and Solutions go. Software for Protection go.

Voltage and Frequency Protection go. Smart Grid Software Solutions go. Turn off more accessible mode. Products for Substation Automation go. High Impedance Protection go.

Distance Protection Relay go. Optionally, a low or high-impedance restricted earth-fault protection, a negative sequence protection and a breaker failure protection can be used.

SIPROTEC 7UT – Digital Grid – Siemens

The flexible communication interfaces are open for modem communication architectures with control system. Protection for Rail Electrification go. Skip directly to content. The integrated programmable logic CFC allows the users to implement their own functions, e.

Control Center Solutions go. Motor and Generator Protection go. In this way an optimal adaption of the relay to the protected object can be achieved. Erlay Bank Protection go. Line Differential Protection go.

Turn on more accessible mode. The specific application can be chosen by parameterization. Products for Power Quality and Measurement go. The SIPROTEC 7UT differential protection relay are used for fast and selective fault clearing of short-circuits in transformers of all voltage levels and also in rotating electric machines like motors and generators, for short lines and busbars.


User-defined messages can be generated as well. The protection relay can be parameterized for use with three-phase and single-phase transformers.

Combined Line Differential and Distance Protection go. In addition to this, a thermal replica is integrated for the supervision of the ohmic losses in the plant.


High Speed Busbar Transfer go. Transient Ground Fault Function go. Transformer Differential Protection go. Therefore, complete thermal monitoring of a transformer is possible, e.