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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It shows the setting possibilities for each function in maximum configuration.

Page 46 Functions 2. Definite Time, High-set Elements, 50n-3, 50n-2 Functions 2. In this example, the setting value is configured as secondary power in watts.

This can also be achieved by setting “Read Only”- access for the interface via which the Web browser accesses the device. Pickup due to overload should never occur since in this mode the device operates as fault protection with correspondingly short tripping times and not as overload protection.

Mounting Semens Commissioning Mounting and Commissioning This chapter is intended for experienced commissioning staff. Page 76 Functions 2. There are two elements each available for overvoltage protection and undervoltage protection. Figure shows an example of a timing diagram for a successful second reclosure. Set Points For Statistic Functions 2. Hardware Modifications Mounting and Commissioning 3.

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Besides, there is a minimum requirement based on experi- ence. Smart Grid Software Solutions go.

Product Details – Industry Mall – Siemens WW

In addition, motor starting protection may be blocked via a binary input which will reset timers and pickup annunciations. Page 74 Functions 2.

Following the general diagrams are diagrams that show the proper connections of the devices to primary equipment 7xj62 many typical power system configurations. Web Monitor Functions 2. For housing size figure and figure there are 4 covers and 4 holes to secure the device, for size figure there are 6 covers and 6 securing holes. High Impedance Protection go. Oscillographic event recordings contain the maximum information on the be- havior of the protection.

Commissioning Aids Functions 2.

Under address L-sections FL the number of line section must be selected, which is required for the accurate description of the line. Page 38 Functions 2. In the example, the reference voltage transformers V are the ones of the transformer high side, i.

Siemens 7sj62 7sj6225 5eb90-1fe0/ff Fast

If set to ON, tripping is possible and a fault log is generated. Page 39 Functions 2. Definite Time Overcurrent Elements50n-1 Functions 2. The grounding conditions in the rest of the network determine how strong a zero sequence current from the system is.

It should be noted that the current flow increases substantially as soon as the mechanical load reaches the stability limit. Page Glossary Double command Double commands are process outputs which indicate 4 process states siwmens 2 outputs: The mounting locations are shown in Figures and Page 25 Introduction 1. Monitoring Functions Functions 2. The protection function represents a thermal replica of the equipment to be protected overload protec- tion with memory capability.

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Page Appendix This appendix is primarily a reference for the experienced user. Control commands can originate from four command sources: Page 72 Functions 2.

This information is relevant for the processing of ground faults in grounded systems and ungrounded systemsfor the operational measured value VN and measured-variable monitoring. In the following, the same line as illustrated in the example for ground impedance ratios siiemens and additional data on the voltage transformers will be used: Figures and illustrate the basic structure of the 7SJ62 and 7SJ64 and the following paragraphs describe each major element. Up to four input currents are measured by the device.

The devices can be used for line protection in networks that are grounded, low-resistance grounded, ungrounded, or of a compensated neutral point structure.