This manual takes each of these possibilities into consideration. Any differences between the devices are indicated specially. Scope of delivery, see chapter 8, page 167. 0.1 General information The product described in this manual left the factory in a perfectly safe and tested condition. To maintain this condition and to achieve perfect. View & download of more than 10794 Siemens PDF user manuals, service manuals, operating guides. Controller user manuals, operating guides & specifications.
The specific application can be chosen by parameterization. In this way an optimal adaptation of the relay to the protected object can be achieved.
In addition to the differential function, a backup overcurrent protection for 1 winding/ star point is integrated in the relay. Optionally, a low or high-impedance restricted earth-fault protection, a negative-sequence protection and a breaker failure protection can be used. 7UT613 features 4 voltage inputs. With this option an overvoltage and undervoltage protection is available as well as frequency protection, reverse / forward power protection, fuse failure monitor and overexcitation protection. With external temperature monitoring boxes (thermo-boxes) temperatures can be measured and monitored in the relay. Therefore, complete thermal monitoring of a transformer is possible, e.g. hot-spot calculation of the oil temperature.
7UT613 features full coverage of applications without external relays by the option of multiple protection functions e.g. overcurrent protection is available for each winding or measurement location of a transformer. Other functions are available twice: ground-fault differential protection, breaker failure protection and overload protection. Furthermore, up to 12 user-defined (flxible) protection functions may be activated by the customer with the choice of measured voltages, currents, power and frequency as input variables. The relays provide easy-to-use local control and automation functions.
AZL52 / LMV51 User Manual U7550 AZL52 / LMV51 User Manual U7550.1 AZL52 / LMV52 User Manual U7550.2 AZL52 / LMV52 User Manual U7550.3 AZL52 / LMV50 User Manual U7550.4 AZL52 / LMV50 User Manual U7550.5 SQM45 / SQM48 Data Sheet N7814 SQM9 Data Sheet N7818 QGO20 Data Sheet N7842 QGO20 Basic Documentation P7842 Life cycle. Write the installation date and serial number in the spaces provided in the Pre-service Checklist, and on the Warranty Information‚ page 169. Contact your Siemens representative for your warranty information if the pre-service checklist is not included in your manual.
The integrated programmable logic (CFC) allows the users to implement their own functions, e.g. for the automation of switchgear (interlocking). User-defined messages can be generated as well. The flexible communication interfaces are open for modem communication architectures with control system.
Hardware
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- 12 current transformers, 1 IEE
- 4 voltage transformers
- 5 binary inputs
- 8 binary outputs
- Text display
- Surface-mounting or flush-mounting housing
Communication interfaces
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System port
– IEC 61850– IEC 60870-5-103
– PROFIBUS-DP
– DNP 3.0– MODBUS RTU
Service port
– DIGSI 4
– Modem
– Thermobox
Front port
– DIGSI 4
Time synchronization via IRIG B, DCF77 or system interface