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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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Siemens SIPROTEC 7SJ62 Manual

Page 86 Functions 2. Page 79 Functions 2. Breaker Failure Protection 50bf Inactive A active 67 Direct. The mnual connection is A, B, C, Gnd. Page 23 Introduction 1. Transformer Differential Protection go.

SIPROTEC 7SJ62 – Digital Grid – Siemens

Automatic Reclosing System 79m Description Of Breaker Failure Protection If no measuring voltage is connected to this input, this subsection is irrelevant. The line is energized and will remain in this state during the measurements.

The calculation algorithm used filters the measured values so that it is highly accurate and insensitive to higher harmonics particularly the 3rd and 5th harmonics — Gnd Fault it was determined with which parameters the ground fault detection is functioning. Page 91 Functions 2. Two-phase Overcurrent Protection only Non-directional Page 42 Functions 2.


Multi-functional 7ssj62 relay with local control pages. It is also possible to employ an external automatic reclosing system. Display Example Functions 2. Final Preparation Of The Device Should any of these setpoints be amnual, exceeded or undershot during operation, the device issues a 7sh62 which is in- dicated in the form of an operational message.

Information List For Fault Location Depending on the temperature unit selected in the Power System Data Section 2. Page 50 Functions 2.

Electrical Tests Technical Data 4.

In the absence of a fault locator or if this function has been removed, this parameter is of no importance. Page 31 Introduction 1. Page Mounting and Commissioning 3. High Impedance Protection go. Furthermore, when using several line sections, the respective length of the individual sections is defined. Cyber Security Products and Solutions go. This facility is used in power systems with possible intermittent faults.

Jumper settings for the contact mode of binary output BO6 are checked according to Table The commands can, for example, kanual specific settings for the modem.

Siemens SIPROTEC 7SJ62 Manuals

Page Page – A. Thermal Overload Protection 49 Functions 2. Page 25 Introduction 1. Settings For Phase Overcurrent Protection Each function can be used majual as an autonomous protection function, as an additional protective element of an existing protection func- tion or as a universal logic, e.


Siemens SIPROTEC 7SJ62 Manuals

Figure Example of the time characteristic for mechanical rotor blocking Logic A continuous comparison of the motor current with the configured threshold values of the protection function takes place for the purpose of detecting a locked rotor.

Inrush Restraint Technical Data 4. It may only be changed if the device is set to measure one or more ground currents via two current inputs. Motor with the following data: Majual on the functional scope specified during 7zj62 uration of the protective functions in addresses Charac.

Which input is used depends on the device version according to the order number.

Termination Alternating Voltage Checking: Skip directly to content. Page – Impacts on the Functionality of the Devi Motor Protection Functions 2. It allows all tasks to be processed digitally, from the acquisition of measured quantities to sending com- mands to circuit breakers.

Glossary Battery The buffer battery ensures that specified data areas, flags, timers and counters are retained retentively.