Siemens SIPROTEC 7SE20 Device Manual
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Siemens SIPROTEC 7SE20 Device Manual

Siemens SIPROTEC 7SE20 Device Manual

Travelling wave recorder
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SIPROTEC
Travelling Wave Recorder
7SE20
V01.00
Device Manual
E50417-X0040-C000-A1
Preface
Table of Contents
Safety Notes
Device Structure
Travelling Wave Explorer
Assembly and Commissioning
Maintenance and Repair
Packing, Storage, and Transport
Technical Data
Appendix
Glossary
1
2
3
4
5
6
7
A

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Summary of Contents for Siemens SIPROTEC 7SE20

  • Page 1 Preface Table of Contents Safety Notes SIPROTEC Device Structure Travelling Wave Recorder Travelling Wave Explorer 7SE20 Assembly and Commissioning V01.00 Maintenance and Repair Packing, Storage, and Transport Device Manual Technical Data Appendix Glossary E50417-X0040-C000-A1...
  • Page 2 Document version: E50417-X0040-C000-A1.03 Trademarks Edition: 07.2024 SIPROTEC, DIGSI, SIGRA, SIGUARD, SIMEAS, SICAM, Insights Version of the product described: V01.00 Hub, and OT Companion are trademarks of Siemens. Any unauthorized use is prohibited.

  • Page 3: Preface

    (RoHS Directive 2011/65/EU). This conformity has been proved by tests performed according to by Siemens AG in accordance with the guidelines in accordance with the EN 61326-1 standard for the EMC Directive, standard EN 61010-1 for the Directive 2014/35/EU, the standard EN 303 413 V1.1.1 for the efficient use of the radio spectrum, and the EN IEC 63000 for the...
  • Page 4 The equipment (device, module) may be used only for such applications as set out in the catalogs and the technical description, and only in combination with third-party equipment recommended and approved by Siemens. Problem-free and safe operation of the product depends on the following: •...
  • Page 5 Preface • Hazardous voltages may be present in equipment even after the supply voltage has been disconnected (capacitors can still be charged). • Operation of equipment with exposed current-transformer circuits is prohibited. Before disconnecting the equipment, ensure that the current-transformer circuits are short-circuited. •...

  • Page 6: Table Of Contents

    Table of Contents Preface................................3 Safety Notes..............................8 Device Structure............................10 Scope and Key Features of the Device................11 Traveling Waves........................ 11 Recording Traveling Waves....................12 Positioning of the Antenna....................14 LED Assignment and Device Status..................16 Application and Setting Notes................... 17 2.6.1 Overview........................17 2.6.2 Station and Device Name.....................17...
  • Page 7 Table of Contents Device Management......................44 3.7.1 Editing a Device......................44 3.7.2 Restart the device......................46 3.7.3 Device Information...................... 46 3.7.3.1 Requesting Status Information................46 3.7.3.2 Requesting Online Parameters................47 3.7.3.3 Editing Online Parameters..................47 3.7.3.4 Sending Online Parameters to the Device............... 47 3.7.3.5 Changing the IP Address..................48 3.7.4...

  • Page 8: Safety Notes

    Safety Notes Management of Security-related Issues To report a security vulnerability affecting a Siemens product or solution, contact Siemens via this Internet page: https://new.siemens.com/global/en/products/services/cert/vulnerability-process.html. Information on validated security vulnerabilities that directly involve Siemens products are published in the Siemens Security Advisories (refer to https://new.siemens.com/global/en/products/services/cert.html#Security-...
  • Page 9 Safety Notes Computer with installed Travelling Wave Explorer program SCALANCE S615 Device 7SE20 SIPROTEC, Travelling Wave Recorder, Device Manual E50417-X0040-C000-A1, Edition 07.2024...

  • Page 10: Device Structure

    Device Structure Scope and Key Features of the Device Traveling Waves Recording Traveling Waves Positioning of the Antenna LED Assignment and Device Status Application and Setting Notes Evaluating a Traveling Wave Record with SIGRA Monitoring Functions Dimensions 2.10 Device Connections SIPROTEC, Travelling Wave Recorder, Device Manual E50417-X0040-C000-A1, Edition 07.2024...

  • Page 11: Scope And Key Features Of The Device

    Device Structure 2.1 Scope and Key Features of the Device Scope and Key Features of the Device The device is used to record traveling waves in power systems. The device has the following key features: • 8 channels for recording signals, split into 4 current channels and 4 voltage channels The channels have a fixed assignment to the analog inputs.

  • Page 12: Recording Traveling Waves

    Device Structure 2.3 Recording Traveling Waves [dw_principle_propagation_traveling-waves, 2, en_US] Figure 2-1 Propagation of traveling waves on a line Traveling waves are measured in the current signals and voltage signals at both ends of the line. In each case, the arrival of the traveling waves is marked with a precise time stamp. Based on the time stamps at both ends of the line, the following formula can be used to calculate the origin of the traveling wave: [fo_TW_FaultLocation_2side_formula, 1, en_US] where:...
  • Page 13 Device Structure 2.3 Recording Traveling Waves Trace Type Meaning TW-UL3E Analog Voltage curve VCG TW-UE Analog Voltage curve VG Trig. TW-IL1 Binary Trigger event in current curve IA Trig. TW-IL2 Binary Trigger event in current curve IB Trig. TW-IL3 Binary Trigger event in current curve IC Trig.

  • Page 14: Positioning Of The Antenna

    Device Structure 2.4 Positioning of the Antenna Example: The following figure shows a section of a traveling wave record for a 1-phase short circuit B-G. The trigger threshold was exceeded for all 3 phase currents and phase-ground voltages. The time stamp 21.11.2022, 05:42:10.550 specifies the time when a trigger threshold was exceeded for the first time.
  • Page 15 Use parameter Required GNSS antenna position accuracy to set the maximum permissible devia- tion of the determined position from the actual antenna position. Set a value from 1 m to 100 m. Siemens recommends that you do not change the accuracy of the time synchronization from the default value of 5 m.

  • Page 16: Led Assignment And Device Status

    Device Structure 2.5 LED Assignment and Device Status LED Assignment and Device Status Device 7SE20 has 8 light-emitting diodes on the front, which provide information about the current state of the device. These 8 LEDs are arranged on the left-hand side of the front of the device, as shown in figure Front View, Page LED 1 –...

  • Page 17: Application And Setting Notes

    Device Structure 2.6 Application and Setting Notes • LED off: Saved position data is not available. Time synchronization is not possible. • LED flashes: Determination of the positioning has not yet been completed. Time synchronization is possible, even if determination of the position has not yet been completed. •...

  • Page 18: Transformer Data

    Device Structure 2.6 Application and Setting Notes Parameter: Station name • Default setting: Station name = Station Use parameter Station name to specify the name of the station in which the device is installed. A maximum of 15 alphanumeric characters are available for this. When a record is saved, the station name is entered in the CFG file of the record.

  • Page 19: Connection Between The Transformer And The Device

    Device Structure 2.6 Application and Setting Notes [dw_polstromwdl_7SE20, 1, en_US] Figure 2-3 Polarity of the current transformer Parameter: Rated primary voltage • Default setting: Rated primary voltage = 400 kV Use parameter Rated primary voltage to set the primary voltage of the 3-phase voltage transformer. Set a value from 0.2 kV to 1200 kV.

  • Page 20: Resolution And Trigger Thresholds

    Device Structure 2.6 Application and Setting Notes Speed of light velocity factor Relative propagation velocity of the wave on the cable in relation to the speed of light Current transformer: Parameter Velocity factor cable CT Voltage transformer: Parameter Velocity factor cable VT Parameter: Cable length CT •...
  • Page 21 NOTE The attenuation factor is not specified by the transformer manufacturer. If the attenuation factor of the primary current is not known, Siemens recommends using an attenuation factor of 1.0 for the calculation. The characteristic impedance Z is independent of the length of the line. It is determined by the design, materials, and insulation of the line.
  • Page 22 Device Structure 2.6 Application and Setting Notes [fo_TW_Characteristical impedance, 1, en_US] where: Inductance per unit length of the line. Calculate this value using the positive-sequence impedance Z of the line. Capacitance per unit length of the line. This value is also called the capacitance per unit length of the line C , is identical to the capacitance of the positive-sequence system C and can be found in the technical data of the line.
  • Page 23 • Top limit: 99 % of the setting value Full scale current Siemens recommends setting the value to 20 % of the maximum current value Full scale current. Example: The setting value for parameter Full scale current was calculated as 1.8 A. This results in the following limiting values for parameter Trigger level current: •...
  • Page 24 NOTE If the attenuation factor of the primary voltage of the voltage transformer is not known, Siemens recom- mends using an attenuation factor of 1.0 for the calculation.
  • Page 25 Top limit: 99 % of the setting value Full scale voltage Siemens recommends setting the value to 10 % of the maximum voltage value Full scale voltage. If you have not connected the voltage transformer, set the maximum possible value.

  • Page 26: Recording Events

    With parameter Post-trigger length, set the record time after the trigger. Set a value from 0.1 ms to 25.00 ms. To see several reflections of the fault location as well as of the removed cable end, Siemens recommends setting the value according to the following equation:...

  • Page 27: Setting The Gnss Module

    Device Structure 2.6 Application and Setting Notes [sc_faultrecording_pre_post_trigger_time, 1, --_--] Figure 2-7 Traveling waves record with Pre-trigger length and Post-trigger length Setting the GNSS Module 2.6.7 For time synchronization, the device has a GNSS module (Global Navigation Satellite System). This can receive signals from GPS and GLONASS satellites.

  • Page 28: Configuration Of The Ethernet Interface

    Use parameter MTU frame size to specify the maximum transmission size for packages in the data network. Set a value from 576 bytes to 1500 bytes. Siemens recommends using the default setting. Only set a smaller value if your network requires this.

  • Page 29: Setting Notes For Fault Location

    Device Structure 2.7 Evaluating a Traveling Wave Record with SIGRA Setting Notes for Fault Location 2.6.9 Using the Travelling Wave Explorer program, you can perform double-end fault location. To do this, the matching records from both ends of the line and some line data that you enter in the Travelling Wave Explorer program are required.
  • Page 30 Device Structure 2.7 Evaluating a Traveling Wave Record with SIGRA Open the record for the first side of the line via menu option File / Open. ² - or - Open the first record by double-clicking the CFG file. ² The record is displayed.
  • Page 31 Device Structure 2.7 Evaluating a Traveling Wave Record with SIGRA The signals for both ends of the lines are shown in one diagram. Use the two cursors to determine the fault location. Slide cursor 2 (blue) to the first edge of the signal from the first device (node N1). Select either the start ²...
  • Page 32 Device Structure 2.7 Evaluating a Traveling Wave Record with SIGRA Single-End Fault Location For single-end fault-location, the time difference between the first edge and the reflection from the fault location is measured. The following figure shows the possible reflections of the traveling wave: [dw_TWFL_Reflections, 1, --_--] Figure 2-10 Reflections of the traveling wave...

  • Page 33: Monitoring Functions

    Device Structure 2.8 Monitoring Functions The record is displayed. For fault location, perform the following steps: Switch to the instantaneous values view. To do this, click the Instantaneous values button. ² To select all diagrams in the illustration, use the keyboard shortcut Ctrl + A. ²...

  • Page 34: Dimensions

    Device Structure 2.9 Dimensions Monitoring the SD Card The SD card is monitored continuously during operation. If LED 2 Error lights up or flashes red, first check for one of the following faults. • LED 2 Error flashes after the device is switched on. –...

  • Page 35: Device Connections

    Device Structure 2.10 Device Connections [dw_device dimension top view 7SE20, 1, en_US] 2.10 Device Connections Current Terminal I Note the following when connecting to the current terminal of the device: Cable cross-section AWG 12 (2.5 mm to 4 mm When using terminal lugs AWG 12–10 (2.7 mm to 6.6 mm Stripped length (for use without bootlace ferrule)
  • Page 36 4 mm . The permissible tightening torque is 1.2 Nm. USB port The Type B USB port on the back of the device is used only for service purposes by Siemens AG. SIPROTEC, Travelling Wave Recorder, Device Manual E50417-X0040-C000-A1, Edition 07.2024...
  • Page 37 BNC Port The socket-type BNC ports (CH1 to CH8) on the back of the device are used only for service purposes by Siemens AG. SD Card Slot The SD card slot is on the front of the device. To ensure safe operation of the device, only use the supplied and approved industrial SD card.

  • Page 38: Travelling Wave Explorer

    Travelling Wave Explorer Elements in the Travelling Wave Explorer Installation and Uninstallation Project Management System Management Station Management Line Management Device Management Records Calculating the Fault Location SIPROTEC, Travelling Wave Recorder, Device Manual E50417-X0040-C000-A1, Edition 07.2024...

  • Page 39: Elements In The Travelling Wave Explorer

    When installation is started, a dialog field with the security function of the operating system will be displayed in the background. To continue installation, authorize the function. The entry Travelling Wave Explorer is located in the Siemens folder in the start menu. This folder also contains the entry Uninstall Travelling Wave Explorer.

  • Page 40: Project Management

    Travelling Wave Explorer 3.3 Project Management Uninstalling To uninstall the Travelling Wave Explorers, the following prerequisites apply: • Administration rights are required for uninstallation. • No instances of the Travelling Wave Explorer are active. Select the Uninstall Travelling Wave Explorer entry in the start menu. ²...

  • Page 41: Editing A Project

    Travelling Wave Explorer 3.4 System Management - or - In the list box, navigate to the file directory of the project file. ² Select the project file in .twe format and confirm the selection. ² Editing a Project 3.3.3 Create a new project. ²...
  • Page 42 Travelling Wave Explorer 3.4 System Management • An existing project is open, see 3.3.2 Opening an Existing Project. • The Devices tab is selected. Adding a System Select the Add system icon. ² A new system is added to the project. The System Settings tab is shown on the right-hand side. [Sc_Add_System, 1, --_--] Figure 3-2 Adding a system...

  • Page 43: Station Management

    Travelling Wave Explorer 3.5 Station Management Station Management Editing a Station 3.5.1 Adding a Station To edit a station, the following prerequisites must be met: • An existing project is opened, see 3.3.2 Opening an Existing Project. • The Devices tab is selected. •...

  • Page 44: Device Management

    Travelling Wave Explorer 3.7 Device Management • A system has been created, see 3.4.1 Editing a System. • 2 stations have been created in a system, see 3.5.1 Editing a Station. • There is a device in each station of a system, see 3.7.1 Editing a Device.
  • Page 45 Travelling Wave Explorer 3.7 Device Management • An existing project is opened, see 3.3.2 Opening an Existing Project. • The Devices tab is selected. • There is at least one system and one station in the project. Adding a Device Select a system and the station to which you wish to add the device.

  • Page 46: Restart The Device

    Travelling Wave Explorer 3.7 Device Management Editing the Device Parameters The Device Settings tab is displayed on the right-hand side. All device parameters are only displayed if the device is online. Set the device parameters as described in 3.7.3.3 Editing Online Parameters.

  • Page 47: Requesting Online Parameters

    Travelling Wave Explorer 3.7 Device Management If the device is online, the online parameters and also the following information are displayed: • MLFB and serial number • Firmware Version • Capacity and free storage capacity on the SD card • Status of time synchronization 3.7.3.2 Requesting Online Parameters...

  • Page 48: Changing The Ip Address

    Travelling Wave Explorer 3.7 Device Management Select a device from the system navigation. ² Select the Device Settings tab. ² Ensure that the device connection status is online. ² Ensure that online parameters are requested and displayed (see 3.7.3.2 Requesting Online Parameters).

  • Page 49: Monitoring Positioning

    Longitude of the position The results of the positioning are updated continuously. Update firmware 3.7.5 From the SIOS portal (https://support.industry.siemens.com/), download the current firmware for the ² device. Save the file with the ending .cms on your personal computer. ²...

  • Page 50: Records

    Travelling Wave Explorer 3.8 Records A file selection dialog opens. Enter the storage path of the firmware file in .cms format. ² A window for entering the password opens. Enter the password. For how to change the password, refer to Changing the Firmware Password, ²...

  • Page 51: Downloading Records

    Travelling Wave Explorer 3.8 Records Downloading Records 3.8.2 Open a project. ² On the left-hand edge, select the Devices tab. ² Select a device from the system navigation. ² Select the Record Overview tab. ² A list of available records for the device is displayed. If the list is empty, refresh the list, see3.8.1 Refreshing the Record Overview.

  • Page 52: Initiating A Test Record

    Travelling Wave Explorer 3.8 Records [sc_Menu_Download_Record, 1, --_--] Figure 3-9 Downloading a record via the menu The records are saved in the project folder as a COMTRADE file and are available offline. During the download process, no further inputs can be made. NOTE If the download was unsuccessful, the records will be marked with no in the Downloaded column.

  • Page 53: Displaying The File Storage Location Of Records

    Travelling Wave Explorer 3.8 Records [sc_Initiate_Test_Record, 1, --_--] Figure 3-10 Manually initiating a test record Wait at least 10 seconds until LED 5 SD card write and LED 6 Trigger active go out on the device. ² Click the Refresh record overview button. ²...

  • Page 54: Opening A Record In Sigra

    Travelling Wave Explorer 3.9 Calculating the Fault Location [sc_Open_File_Location, 1, --_--] Figure 3-11 Displaying the file storage location of a record or opening the record in SIGRA Opening a Record in SIGRA 3.8.5 The SIGRA program must be installed for the following steps. Open a project.
  • Page 55 Travelling Wave Explorer 3.9 Calculating the Fault Location 2.2 Traveling Waves, and displayed. The fault location is specified as the distance from the device in the first column. Example: On December 4, 2023 at 10:03 a.m., a fault was identified on the line. This is located at a distance of 79.299 km, starting from Device 1 in Station 1.

  • Page 56: Assembly And Commissioning

    Assembly and Commissioning Unpacking/Repacking a Device Device Assembly Antenna Assembly Commissioning SIPROTEC, Travelling Wave Recorder, Device Manual E50417-X0040-C000-A1, Edition 07.2024...

  • Page 57: Unpacking/Repacking A Device

    Keep the packaging in case the devices need to be stored or transported elsewhere. ² Return damaged devices to Siemens, stating the defect. Use the original packaging or transport pack- ² aging that meets the requirements of ISO standard 2248.

  • Page 58: Antenna Assembly

    Assembly and Commissioning 4.3 Antenna Assembly Connect the device to the current and voltage transformer of the system, as shown in A.4 Connection ² Diagrams. Lay the communication lines separately from the operating voltage, measurement, and control lines. ² Connect the supply voltage to the device. ²...

  • Page 59: Commissioning

    Assembly and Commissioning 4.4 Commissioning NOTE To avoid interference signals, the antenna must be positioned at a distance from other devices and radio systems. Commissioning For commissioning, the following conditions apply: • The device is installed for stationary use, see 4.2 Device Assembly.
  • Page 60 Assembly and Commissioning 4.4 Commissioning Setting the Device Parameters Configure the device parameters, see Editing the Device Parameters, Page 46. The setting values are ² described in 2.6 Application and Setting Notes. Determining the Position of the Antenna Start positioning of the antenna as described in 3.7.4.1 Initiating Positioning.

  • Page 61: Maintenance And Repair

    Maintenance and Repair Maintenance Repair Environmental Protection Hints SIPROTEC, Travelling Wave Recorder, Device Manual E50417-X0040-C000-A1, Edition 07.2024...

  • Page 62: Maintenance

    ² Wipe the device using a clean, dry cloth. Do not use solvents. ² Update firmware On the SIOS portal (https://support.industry.siemens.com/), check whether new firmware for the device is ² available. Carry out the firmware update as described in 3.7.5 Update firmware.
  • Page 63 When disposing of or transferring a mobile storage device, Siemens strongly recommends physically destroying it or completely deleting data from the mobile storage device by using a commercially available computer data erasing software.

  • Page 64: Packing, Storage, And Transport

    Packing, Storage, and Transport Packing a Device • If you store the device after the incoming goods inspection, it must be packed in appropriate storage packaging. • If you wish to transport the device, pack it in transport packaging. Storage and Transport NOTICE Improper storage can cause damage to the device.

  • Page 65: Technical Data

    Technical Data Supply Voltage Direct voltage Rated input voltage 110 V to 250 V Admissible input voltage tolerance -10 % of the rated value +20 % of the rated value Alternating voltage Rated input voltage 100 V to 230 V Power frequency 50 Hz to 60 Hz Admissible input voltage tolerance...
  • Page 66 Technical Data Structural Variant Housing Stainless steel Dimensions 2.9 Dimensions Weight 5.8 kg Electrical Connections Current inputs, I1 to I4 Overvoltage category Insulation Double ISO test voltage AC 2700 V, 1 min Current-carrying capacity For I = 5 A continuous, 100 ⋅ I for 1 s rated rated...
  • Page 67 Technical Data Electrostatic discharge test (ESD) EN 61000-4-2 4 kV contact discharge 8 kV air discharge Power-frequency magnetic fields EN 61000-4-8 3 A/m Voltage dips on supply voltage EN 61000-4-11 0 % during 1/2 period 0 % during 1 period 70 % during 25 periods Interruption to supply voltage EN 61000-4-11...

  • Page 68: A Appendix

    Appendix Figures Meaning of the LEDs Ordering Information and Accessories Connection Diagrams SIPROTEC, Travelling Wave Recorder, Device Manual E50417-X0040-C000-A1, Edition 07.2024...

  • Page 69: Figures

    Appendix A.1 Figures Figures Front View [sc_Front_view_7SE20, 1, en_US] Rear View [sc_Rückansicht, 1, en_US] Top View [Draufsicht Montage, 1, --_--] SIPROTEC, Travelling Wave Recorder, Device Manual E50417-X0040-C000-A1, Edition 07.2024...

  • Page 70: Meaning Of The Leds

    Appendix A.2 Meaning of the LEDs Meaning of the LEDs Name LED Status Meaning There is no supply voltage at the device. There is a supply voltage at the device. Error The device is ready for operation. The LED lights up red in the following situations: •...

  • Page 71: Connection Diagrams

    Appendix A.4 Connection Diagrams Connection Diagrams The following figures show the respective typical types of connection for current and voltage measurements. Connection of the V4 transformer is optional. [dw_type-of-connection-current_7SE20, 1, en_US] Figure A-1 Connection for current measurement [dw_type-of-connection-voltage_7SE20, 1, en_US] Figure A-2 Connection for voltage measurement SIPROTEC, Travelling Wave Recorder, Device Manual...

  • Page 72: Glossary

    Global Positioning System Pulse Per Second SIGRA SIGRA is licensed software for the evaluation of fault records. SIOS Siemens Industry Online Support Transmission Control Protocol User Datagram Protocol Virtual Private Network SIPROTEC, Travelling Wave Recorder, Device Manual E50417-X0040-C000-A1, Edition 07.2024...

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