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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Before a release is granted, the following conditions are checked: Other designations in this manual might be trade- marks whose use by third parties for their own purposes would in- Release date Jumper settings for the contact mode of binary output BO6 are checked according to Table Jumper X90 has currently no function.
Page 75 Functions 2.
If the binary input becomes active while no trip command of any function applies, the automatic reclosure system will be blocked dynamically provided it is already running. Connection diagrams indicating the terminal connections of the models of this device are included. The input amplifier IA element provides a high-resistance termination for the input quantities. Page Glossary Protection devices All devices with a protective function and no control display.
SIPROTEC 7SJ62 – Digital Grid – Siemens
Depending on the chosen option, the elements can evaluate active power forward, active power reverse, reactive power forward or reactive power reverse as measured value. Sirmens allows all tasks to be processed digitally, from the acquisition of measured quantities to sending com- mands to circuit breakers. In radial systems, locating the ground fault is relatively simple. Used together with electromechanical relays, it allows different dropout responses to be adjusted and time grading of digital and electromechanical relays to be implemented.
The standard connection is A, B, C, Gnd. If the voltage cri- terion drops out during this time period about 60 msthe protection function does siemene pick up.
Here the delta address must be set to VT Connect. Figures and illustrate the basic structure of the 7SJ62 and 7SJ64 and the following paragraphs describe each major element. Checking Connections Mounting and Commissioning 3. Both op- erational states are unfavorable as overvoltage may cause for example insulation problems or undervoltage may cause stability problems. Inactive A active 67 Direct. Page 29 Introduction 1. As a prerequisite for determining the direction, the displacement voltage V must be exceeded as well as a configurable current part influencing the direction active or reactive component.
The measurement values can be called via the navigation bar.
Siemens SIPROTEC 7SJ62 Manual
Figure Logic diagram of the intermittent ground fault protection — principle Fault Logging A fault event and thus fault logging is initiated when the non-stabilized IiE element picks up for the first time.
Furthermore, when using several line sections, the respective length of the individual sections is defined. Hardware Modifications Mounting and Commissioning 3. Installation Mounting and Commissioning 3. Panel Flush Mounting Mounting and Commissioning 3. Voltage and Frequency Protection go. Due to the variety of application options and the available system configurations, it is not possible to siemnes a detailed description of the necessary tests. Depending on the functional scope specified during config- uration of the protective functions in addresses Charac.
Checking System Connections Mounting and Commissioning 3. Page 94 Functions 2.
The integrated programmable logic CFC allows the user to implement their own functions, e. The measurement of these statistical values is initiated upon energization of the motor. Cable and current transformer with the following data: Discrepancies in the wiring or the configuration can be quickly found and solved. The user can create up to 20 flexible protection functions.
Table Of Contents Contents 2. If not, they are reported only as ON. Dimensions Technical Data 4. According to the example, approximately trips can yet be carried out at a tripping current of 10 kA. However, the protection feature can be configured to allow that not only this phase element but also the remaining elements including ground are blocked the so-called CROSS BLOCK function, address if the permissible har- monic component of the current is exceeded for only one phase.
In this connection, determination of zero-sequence voltage V0 is not possible. Page Technical Data 4. This may be performed with secondary test equipment or other test equipment for checking continuity. The action time is launched when pickup of any function is detected, which is set as source of the automatic reclosure program.
Voltage Protection 27, 59 Functions 2. Location Ambient Winding Bearing Other A visual check of the assignment of the transmit and receive channels is important.
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Page Functions 2. Page – A. He must be familiar with the commissioning of protection and control systems, the management of power systems and the safety rules and regulations. It may only be changed if the device is set to measure one or more ground currents via two current inputs. This has to be communicated siemen the device as digitalized measured value via the interface. When the delay time has elapsed and the threshold is still violated, the pickup of the phase e.