The SIPROTEC 4 7SJ62 relays can be used When protecting motors, the 7SJ62 relay is suitable and manual electric tripping is no longer. Applicability of this Manual. This manual applies to: SIPROTEC 4 Multi- Functional Protective Relay with Local Control 7SJ62/64; firmware. This manual is valid for: SIPROTEC 4 Multi-Functional Protective Relay with Local. Control 7SJ62/63/64; firmware version V Indication of.

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Description Of Phase Rotation Table Of Contents Contents 2. The availability of two parameters enables an asymmetrical release range to be set.

Establishing Information Properties Operator Interface Checking: Description Of Inrush Restraint Page 42 Functions 2. Dimensions Technical Data 4. He must be familiar with the commissioning of protection and control systems, the management of power systems and the safety rules and regulations.

Controlling Protection Elements Overcurrent Protection 50, 50n, 51, 51n The user can create up to 20 flexible protection functions. Page 41 Functions 2.



Determination Of Direction Only qualified people shall work on and around this device. Triggering Oscillographic Recordings All elements may be configured independently from each other and combined as desired.

If T-reset expires and no new ground fault is recorded during that time, all memories are reset and the protection resumes normal position. Definite-time Elements And Programming Settings For Fuse-failure-monitor Description Of Breaker Failure Protection Each reverse power element can be operated in single-phase or three-phase. Test Mode And Transmission Block Page – Impacts on the Functionality of the Devi The function Motor Starting Protection automatically performs a switching.

Siemens SIPROTEC 7SJ62 Manuals

Table Of Contents Contents 4. Failure of the measuring voltage in one or two poles can be detected, and the directional time overcurrent elements Dir Phase and Dir Ground can be blocked see logic diagrams. Transformers and cable are prone to damage by overloads that last for an extended period of time.

Definite Time Overcurrent Elements50n-1 Functions 2. Controlling Protection Elements Functions 2. Set Points For Statistic Information List Functions 2.


Grounding Grounding is the total of all means and measured used for grounding. Some of the most frequently used are listed below: Certifications Technical Data 4. The symmetry factor BAL. They appear automatically in the display after general interrogation of the device, in the sequence shown in the following figure.

Siemens SIPROTEC 7SJ62 Manuals

Siprotec 4 Devices Function Logic Functions 2. Bay controllers Bay controllers are devices with control and monitoring functions without protective functions. If set to ON with GF log, tripping is possible, a fault log and a ground fault log are generated. Thus, for example, a rate-of-frequency-change protection or reverse power protection can be implemented. The circuit breaker auxiliary contact is bridged with a bypass resistor R. The ones affected are described in the following.