7SJ62 SIEMENS PDF

This manual describes the functions, operation, installation, and commissioning of the device 7SJ62/63/64 V and for 7SJ63 V The functionality of the. Function overview. Description. Siemens SIP · 5 OvercurrentProtection/ 7SJ 5. 5/ 5/ Protection functions. • Time-overcurrent. of Siemens AG. Other designations in this manual might be trade- marks whose use by third parties for their own purposes would in- fringe the.

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Figure Example for the generation of a manual close signal using the internal control function S7j62 For an interaction between the automatic reclosing function 79 AR and the control function, an extended CFC logic is necessary.

Testing User-defined Functions Mounting and Commissioning 3. Page 31 Introduction 1. If siemebs, it can be derived from a DC measurement on the secondary winding. It is derived from the number of cold and warm n motor startups.

They must be thoroughly familiar with all warnings siemene safety notices in this instruction manual as well as with the applicable safety steps, safety regulations, and precautionary measures. This is why such faults are not detected at all or not selectively by the ordinary time overcurrent protection.

Software for Protection go.

The flexible communication interfaces are open for modern communication architectures with control systems. All elements may be configured independently from each other and combined as desired. If not, they are reported only as ON. Both op- erational states are unfavorable as overvoltage may cause for example insulation problems or undervoltage may cause stability problems. Don’t have an account?

SIEMENS SIPROTEC 7SJ62 MANUAL Pdf Download.

Power transmission within the system can be increased when the fault is located and cleared faster. Jumpers X to X sieens be set to the same position! Voltage and Frequency Protection go. Functions using zero-sequence voltage must be disabled. Close request to Control 79M Auto Recl. Page 82 Functions 2.

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Mounting And Commissioning Mounting and Commissioning This chapter is intended for experienced commissioning staff. Mounting And Connections Mounting and Commissioning 3.

If the s7j62 phase currents and the ground current from the current transformer starpoint are connected with the device, the sum of the four digitized currents must be zero. Furthermore, when using several line sections, the respective length of the individual sections is defined. Other designations in this manual might be trade- marks whose use by third parties for their own purposes would in- Release date Direct Serial Connection Direct connection of the front operator interface or the rear service interface of the device with the serial inter- face of the operator PC.

Determination of the Reverse Power The reverse power protection evaluates the active power simens the symmetrical components of the fundamental harmonics of the voltages and currents.

Oscillographic records obtain the maximum information about the behaviour of the protection. Protection devices, combination devices, bay control- lers. Figure shows an example of a timing diagram for a successful second reclosure. For generators, motors and shunt reactors high-impedance protection can be used analogously. Each function can be used either as an autonomous protection function, as an additional protective element of an existing protection func- tion or as a universal logic, e.

Program Execution Functions 2. Therefore, the function does not drop out at high speed. This standard permits uniform com- munication of the devices without gateways and protocol converters. CB ready monitoring window expired 79 in progress 79 wiemens in progress Transformer Differential Protection go. Panel Flush Mounting Siemend and Commissioning 3.

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Page 83 Functions 2. Follow the procedure described in this section, whenever hardware modifica- tions are carried out. Page 94 Functions 2. Double Activation Blockage Parallel switching operations are interlocked.

Page 60 Functions 2.

Siemens SIPROTEC 7SJ62 Manual

Both the s7j62 history of an overload and the heat loss to the environment are taken into account. They appear automatically in the display after general interrogation of the device, in the sequence shown in the following figure.

It is essential in this case that all current transformers feeding the resistor whose current is measured at I have the same polarity. Numerical overcurrent, motor and overload relay pages. Page 86 Functions 2. Tools Digital Grid Digital Grid.

A separate blocking can be selected for that purpose. Page 55 Functions 2. Motor Protection Functions 2. Inverse Time Characteristic toc Functions seimens.

Make sure that terminal continuity is not wrongly simulated in reverse direction via current transformers or slemens short-circuiters. An incoming inrush will reset a running dropout delay time. The start page of the default display appearing after startup of the device can be selected in the device data via parameter Start image DD.

Furthermore, this type of connection is dealt with in the func- tional descriptions.