7SJ62 MANUAL PDF

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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Directional Overcurrent Protection 67, 67n Functions 2. Programmable Logic Cfc Fault recording is running 2. Location Ambient Winding Bearing Msnual Page 30 Introduction 1. The primary tests require the protected object line, transformer, etc.

In the current path, the I current is valid, when the transformer neutral current is connected to the device. Eddy cur- rents are induced at the rotor surface, and local overheating in rotor end zones and the slot wedge begins to take place.

Siemens recommends that all devices be installed such that they are not exposed to direct sunlight, nor subject to large fluctuations in temperature that may cause condensation to occur. Page 94 Functions 2.

Preface Typographic and Symbol Conventions The following text formats are used when manuao information from the device or to the device appear in the text flow: The combination matrix defines which devices exchange which in- formation. Figures and illustrate the basic structure of the 7SJ62 and 7SJ64 and the following paragraphs describe each major element.

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

Siemens SIPROTEC 7SJ62 Manuals

The flexible communication interfaces are open for modern communication architectures with control systems. The selection is made via parameter setting of the automatic reclosing function. Retrieving Of Waveform Capture If desired, fewer than 20 pairs may be entered. Setting The Functional Parameters maunal It is derived from the number of cold and warm n motor startups.

Of course, this is only possible if three phase-to-ground voltages are obtained from voltage transformers connected in 7sj26 grounded wye config- uration.

Communication branch A communications branch corresponds to the configuration of 1 to n users which communicate by means of a common bus. Page 88 Functions 2. Dynamic Cold Load Pickup Function Definite Manaul Overcurrent Elements50n-1 Functions 2. Our Customer Support Center provides a hour service. Control Center Solutions go.

SIPROTEC 7SJ62 – Digital Grid – Siemens

Page 53 Functions 2. Page 47 Functions 2. This standard permits uniform com- munication of the devices without gateways and protocol converters. Mechanical Stress Tests Page 50 Functions 2.

Load Jam Protection 51m Functions 2.

SIPROTEC 7SJ62

Trip Circuit Supervision 74tc Operator Interface Checking: Description Functions Downloads Configurator. The circuit breaker auxiliary contact is bridged with a bypass resistor R. The feedback information of the circuit breaker position injected via binary inputs is read out at the device and compared with the actual breaker position. An overview of the devices is pre- sented in their application, characteristics, and scope of functions. The presetting of the jumpers corresponds msnual the configuration ordered.

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Test Mode And Transmission Block Both op- erational states are unfavorable as overvoltage may cause for example insulation problems or undervoltage may cause stability problems. The blocking results in a current jump in the phases.

As reference voltage, the negative sequence system voltage is used, as current for the direction determination, the negative sequence system current, in which the fault current is displayed.

The same applies to AR 50N-2 inst. The binary input message must be deactivated again within this time in order to start the dead manuaal. Combined Line Differential and Distance Protection go. Settings For Measured Values Monitoring Controlling Protection Elements Functions 2.

Display Example Functions 2. Additional Interface Checking: Description Of Thermal Overload Protection It should be manuaal that the current flow increases substantially as soon as the mechanical load reaches the stability limit.

The device must thus have been preset during configuration of the device functions to Sens. Trip Log fault Messages