Siemens Siprotec 7SJ6005-2EA00-0DA0/BB Numerical Overcurrent Protection Relay

New open sealed Box

If needed, we also have a copy of Digsi 4 with license certificate (not included with this item, inquire for more information).

Overcurrent Protection / 7SJ600

 

SIPROTEC 7SJ600 numerical overcurrent, motor and overload protection relay

Function overview

Feeder protection

• Overcurrent-time protection

• Ground-fault protection

• Overload protection

• Negative-sequence protection

• Cold load pickup

• Auto-reclosure

• Trip circuit supervision

Motor protection

• Starting time supervision

• Locked rotor

Control functions

• Commands for control of a circuit-breaker

• Control via keyboard, DIGSI 4 or SCADA system

Measuring functions

• Operational measured values I

Monitoring functions

• Fault event logging with time stamp (buffered)

• 8 oscillographic fault records

• Continuous self-monitoring

Communication

• Via personal computer and DIGSI 3 or DIGSI 4 (≥ 4.3)

• Via RS232 – RS485 converter

• Via modem

• IEC 60870-5-103 protocol, 2 kV-isolated

• RS485 interface

Hardware

• 3 current transformers

• 3 binary inputs

• 3 output relays

• 1 live status contact

Fig. 5/19 SIPROTEC 7SJ600

numerical overcurrent, motor and overload protection relay

LSP2001-afpen.tif

Description

The SIPROTEC 7SJ600 is a numerical overcurrent relay which, in

addition to its primary use in radial distribution networks and

motor protection, can also be employed as backup for feeder,

transformer and generator differential protection.

The SIPROTEC 7SJ600 provides defi nite-time and inverse-time

overcurrent protection along with overload and negativesequence

protection for a very comprehensive relay package.

In this way, equipment such as motors can be protected against

asymmetric and excessive loading. Asymmetric short-circuits

with currents that can be smaller than the largest possible load

 

currents or phase interruptions are reliably detected.