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SIEMENS 7SJ63

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The SIPROTEC 7SJ63 can be used as a protective control and monitoring relay for distribution feeders and transmission lines of any voltage in networks that are grounded (grounded), low resistance grounded, ungrounded or from a compensated neutral point structure . The relay is suitable for radial or loop networks and for lines with single-terminal or multi-terminal supplies. Regarding time overcurrent/directional time overcurrent protection, the characteristics can be definite time, inverse time or user defined. SIPROTEC 7SJ63 is equipped with motor protection applicable for asynchronous machines of all sizes. Motor protection includes undercurrent monitoring, starting time supervision, restart inhibition, blocked rotor.

Resources:

-The relay provides easy-to-use local control and automation functions. The number of controllable panels depends only on the number of inputs and outputs available. Integrated programmable logic (CFC) allows the user to implement their own functions, for example, switchgear automation (interlocking). The user can also generate user-defined messages.

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Flexible communication interfaces are open to modern communication architectures with control systems.

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Hardware

- 4 current transformers

- 3 voltage transformers

- 11 to 37 binary inputs

- 8 to 14 output relays

- Graphic display

- Surface or recessed mounting box

Communication interfaces:

System port:

- IEC 61850

- IEC 60870-5-103

- PROFIBUS-DP

- DNP 3.0

- MODBUS RTU

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Service port

- DIGSI 4

- Modem

- Thermal box

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Front door

- DIGSI 4

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Time synchronization via IRIG B / DCF77

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