View and Download Siemens SIPROTEC 7SJ62 manual online. Multi-Functional Protective Relay with Local Control. SIPROTEC 7SJ62 Relays pdf manual. 5 Overcurrent Protection / 7SJ62SIPROTEC 4 7SJ62 Multifunction Protection Relay Function overview Fig. 5/99 SIPROTEC 7SJ62 m. This manual is valid for SIPROTEC® 4 7SJ62 Multifunction Protective Relays; firmware version / Indication of Conformity This product complies with the.

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Power transmission within the system can be increased when the fault is located and cleared faster. The device must thus have been preset during configuration of the device functions to Sens. Page 7 Preface Typographic and Symbol Conventions The following text formats are used when literal information from the device or to the device appear in the text flow: Siprotec 7sj62 manual 99 Siprotec 7sj62 manual 2.

Software for Protection go. The automatic reclosing system can be programmed in such manner that any of the elements of Table can initiate Starts 79not initiate No influenceor block reclosing Stops The mounting locations are shown in Figures and For any further information that can be displayed, please refer to Annex A.

Inverse Time Characteristic toc Functions 2. Average Measurements Functions 2.

Siprotec 7sj62 manual

siprotec 7sj62 manual Page 49 Functions 2. For dimensions see the Technical Data, Section 4. As soon as the command has arrived all command objects subject to the interlocking are checked 7ej62 know whether a command is being processed. Parameter Names Designators of configuration or function parameters which may appear word-for-word in the siprotec 7sj62 manual of the device or on the screen of a personal computer with operation software DIGSI 7zj62, are marked in bold letters in monospace type style.

Page 78 Functions 2. Transformers and cable are prone to damage by overloads that last for an 7sj6 period of siprotec 7sj62 manual. The integral is derived from the squared instantaneous values of the currents occurring during arc time of the circuit breaker.


In addition, the measured values are also constantly monitored for plausibility, therefore, the current transformer and voltage transformer circuits are largely integrated into the monitoring.


The loca- tion of the miniature fuse F1 and of the buffer battery G1 are also shown in the following figures. Page 82 Functions siprotec 7sj62 manual. Gnd Fault it was determined with which parameters the ground fault detection is siptotec.

This facility is used in power systems with possible intermittent faults. System Connections Action Time Siprotec 7sj62 manual QUANTITY 27 you sipotec determine foor undervoltage protection in a three-phase con- nection that instead of the positive-sequence system V1, the smallest of the phase-to-phase voltages Vphph or the smallest phase-to-ground voltage Vph-n is siprotec 7sj62 manual as a measured quantity.

Voltage and Frequency Protection go. Mounting and Commissioning 3. Page 56 Functions 2. 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. An incoming inrush will reset a running dropout delay time. Sipprotec flexible communication interfaces are open for modern communication architectures with control systems. Motor and Generator Protection go.

The 7SJ64 relay comprises 4 syn- chronization function groups Siprotec 7sj62 manual function group 1 to 4 which each contain all setting parameters for one synchronizer.

It is siprotec 7sj62 manual in this case siprotec 7sj62 manual siprotecc current transformers feeding siprotec 7sj62 manual resistor whose current is measured at I have the same polarity. For details see also in- formation at margin mqnual “Interaction with the Automatic Reclosing Function” There are three mechanisms: 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.


The specifications of the previous section apply. Don’t have an account? Before the first reclosing, faults are to be eliminated quickly applying elements or 50N Siprotec 7sj62 manual 58 Functions 2. Busbar Tripping For testing the distribution of the trip commands in the substation in the case of breaker failures it is important to check that the trip commands to the adjacent circuit breakers is correct.

Power System Data 1 Functions 2. Furthermore, the measurement of all three phase-to-ground voltages is a requirement.

An LED icon shows the current status of the selected group: Figure DIGSI 7j62 box for setting the interlocking conditions On devices with operator panel, the display shows the configured interlocking reasons. Glossary Battery The buffer battery ensures that mabual data areas, flags, timers and counters are retained retentively.

Page Appendix A. Protection devices, combination devices, bay control- lers.

Siemens SIPROTEC 7SJ62 Manual

Command Sequence Functions 2. Thus, the user specifies which primary voltage is connected to which analog input.

If a coefficient is smaller than -4, the exponential function in the operating cycles diagram is deactivated. Enter text from picture: If temperature sensors are used with 2-phase connection you must first determine the line resistance for the temperature detector siprotec 7sj62 manual short-circuited.

It allows all tasks to be processed digitally, from the acquisition of measured quantities to sending com- mands to circuit breakers.