1. Manuals
  2. Brands
  3. Siemens Nixdorf Manuals
  4. Portable Generator
  5. SIPROTEC 7XT33
  6. Manual

Siemens Nixdorf SIPROTEC 7XT33 Manual

20 hz-generator and band-pass filter
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
SIPROTEC
20 Hz-Generator and
Band-pass Filter
7XT33, 7XT34
Manual
C53000-G5740-C003-1
Preface
Table of Contents
7XT33 – 20 Hz Generator
7XT34 – 20 Hz Band-pass Filter
Connection Examples
Commissioning and Maintenance
Modification History
Index
1
2
3
4
A

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the SIPROTEC 7XT33 and is the answer not in the manual?

Questions and answers

Summary of Contents for Siemens Nixdorf SIPROTEC 7XT33

  • Page 1 Preface Table of Contents 7XT33 – 20 Hz Generator SIPROTEC 7XT34 – 20 Hz Band-pass Filter 20 Hz-Generator and Connection Examples Band-pass Filter Commissioning and Maintenance 7XT33, 7XT34 Modification History Index Manual C53000-G5740-C003-1...
  • Page 2 NOTE For your own safety, observe the warnings and safety instructions contained in this document, if available. Disclaimer of Liability Copyright Subject to changes and errors. The information given in Copyright © Siemens 2025. All rights reserved. this document only contains general descriptions and/or The disclosure, duplication, distribution and editing of this performance features which may not always specifically document, or utilization and communication of the content...

  • Page 3: Preface

    Preface Purpose of the Manual This manual contains information about commissioning, operation, and technical data of the SIPROTEC 20 Hz-generator 7XT33 and the band-pass filter 7XT34 for generator protection. Target Audience System engineers, protection system engineers, commissioning engineers, persons entrusted with the setting, testing and maintenance of automation, selective protection and control equipment, and operational crew in electrical installations and power plants.
  • Page 4 Preface Training Courses You can request the individual training course offer at our Training Center: Siemens AG Siemens Power Academy TD Phone: +49 911 9582 7100 Humboldtstraße 59 E-mail: poweracademy@siemens.com 90459 Nuremberg Internet: www.siemens.com/poweracademy Germany Notes on Safety This document is not a complete index of all safety measures required for operation of the equipment (module or device).
  • Page 5 Preface Proper Use 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 6 Preface Symbol Description ESD-sensitive devices CE marking Mandatory conformity mark for electronics and electrotechnical products in Morocco United Kingdom (UK) conformity-assessed marking TSI chassis ground, IEC 60417, 5020 SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...

  • Page 7: Table Of Contents

    Table of Contents Preface................................3 7XT33 – 20 Hz Generator..........................11 Application........................12 Selection and Ordering Data....................13 Function Description......................14 Block Diagram........................16 Control Voltage for Blocking Input..................17 Construction Properties..................... 18 1.6.1 Mechanical Structure....................18 1.6.2 Jumper and Fuses on the Printed Circuit Boards............20 1.6.3 Dimensions.........................
  • Page 8 Table of Contents 7XT34 – 20 Hz Band-pass Filter........................33 Application........................34 Selection and Ordering Data....................35 Block Diagram........................36 Connection Notes......................37 2.4.1 Overview........................37 2.4.2 Connection Data......................38 Construction Properties..................... 39 2.5.1 Mechanical Structure....................39 2.5.2 Dimensions......................... 40 2.5.2.1 Panel Surface Mounting..................40 2.5.2.2 Panel Flush Mounting.....................42 Technical Data........................
  • Page 9 Table of Contents Index................................69 SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...
  • Page 10 SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...

  • Page 11: 7Xt33 - 20 Hz Generator

    7XT33 – 20 Hz Generator Application Selection and Ordering Data Function Description Block Diagram Control Voltage for Blocking Input Construction Properties Installing the Device 7XT33 Screw-Type Terminals of the Connector Block Connection Data 1.10 Technical Data 1.11 Electrical Tests 1.12 Mechanical Tests 1.13 Environmental Conditions...

  • Page 12: Application

    7XT33 – 20 Hz Generator 1.1 Application Application The 20-Hz generator 7XT33 is used in combination with the band-pass filter 7XT34 in the machine protection (SIPROTEC 4 7UM62 / SIPROTEC 5 7UM85). To implement a 100 % stator ground fault protection, it provides the source for injection into the generator neutral point.

  • Page 13: Selection And Ordering Data

    7XT33 – 20 Hz Generator 1.2 Selection and Ordering Data Selection and Ordering Data Description Order No. Position Accessories for 100 % stator ground-fault protection 7 X T 3 3 0 0 - 0 ☐ A 0 0 20 Hz Generator, for housing 7XP20 For panel surface mounting For panel flush mounting Table 1-1...

  • Page 14: Function Description

    7XT33 – 20 Hz Generator 1.3 Function Description Function Description Basic Principle The device 7XT33 injects into the generator neutral point a voltage of max. 1 % of the rated generator voltage. If a ground fault occurs in the generator neutral point, the 20 Hz voltage drives a current through the fault resistance.
  • Page 15 7XT33 – 20 Hz Generator 1.3 Function Description NOTE The output of the device 7XT33 is not resistant to short circuits. In the case of a short circuit, the internal fusible cut-out insert interrupts the electrical circuit. • If the 20-Hz output voltage is lower than 17 V, for example during a short circuit, or higher than 73 V under operating conditions (internal device voltage within the permissible range), the output module is switched off, the signal relay drops out and the red BLOCKED LED lights up.

  • Page 16: Block Diagram

    7XT33 – 20 Hz Generator 1.4 Block Diagram Block Diagram [dw_block-diagram_7xt33, 1, en_US] Figure 1-3 Block Diagram SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...

  • Page 17: Control Voltage For Blocking Input

    7XT33 – 20 Hz Generator 1.5 Control Voltage for Blocking Input Control Voltage for Blocking Input The blocking input is set to the pickup threshold of DC 88 V on delivery. For the control voltages DC 24 V, DC 48 V and DC 60 V, jumper S1 on the control module (C53207-A332- B2-, see Figure 1-8) must be used to reduce the pickup threshold to DC 19 V (X401-X402).

  • Page 18: Construction Properties

    7XT33 – 20 Hz Generator 1.6 Construction Properties Construction Properties Mechanical Structure 1.6.1 [sc_Mechanical_design_7XT33_front, 1, --_--] Figure 1-4 Mechanical Design [sc_Mechanical_design_7XT33_rear_of_device, 1, --_--] Figure 1-5 Rear Side of 20-Hz Generator Device Version 7XT3300-0*A00/GG and Higher SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...
  • Page 19 7XT33 – 20 Hz Generator 1.6 Construction Properties [dw_7XT33_Rear_Panel, 1, --_--] Figure 1-6 Imprint on the Rear Side of 20-Hz Generator Device Version 7XT3300-0*A00/GG and Higher SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...

  • Page 20: Jumper And Fuses On The Printed Circuit Boards

    7XT33 – 20 Hz Generator 1.6 Construction Properties Jumper and Fuses on the Printed Circuit Boards 1.6.2 Power Supply Module C53207-A332-B12-, 7XT3300-0*A00/GG and Higher [dw_7xt33_power_supply_module, 1, --_--] Figure 1-7 Power Supply Module with Location of the Fuses The fusible cut-out inserts must be replaced only by the types mentioned. If other types are used, the parameters and properties given for the device no longer apply The following fusible cut-out inserts 4AT, type 5 x 20 mm may be used: •...
  • Page 21 7XT33 – 20 Hz Generator 1.6 Construction Properties WARNING Use of unsupported fuses Non-observance may lead to death or serious injury. Use only the listedfusible cut-out inserts. A safe operation can be guaranteed by the complete auxilary ² voltage range only in such a way. Control Module C53207-A332-B2-, 7XT3300-0*A00/GG and Higher [dw_7xt33_control_module, 1, --_--] Figure 1-8...

  • Page 22: Dimensions

    7XT33 – 20 Hz Generator 1.6 Construction Properties Dimensions 1.6.3 1.6.3.1 Housing for Surface Mounting Version [Dimensional_construction_WL-1-2-short, 1, en_US] Figure 1-9 Dimensions in the Surface-Mounting Version 1.6.3.2 Housing for Panel Flush Mounting or Cubicle Installation [Dimensional_construction_GR-1-2-short, 1, en_US] Figure 1-10 Dimensions, Panel Flush Mounting or Cubical Installation SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...

  • Page 23: Installing The Device 7Xt33

    7XT33 – 20 Hz Generator 1.7 Installing the Device 7XT33 Installing the Device 7XT33 Use a conductor of at least 2.5 mm² (1.5 Nm) to connect the device to protective or functional ground in ² a low-resistance and low-inductance manner. Use the screw-type terminals for connection and make sure you observe the marks, the permissible ²...

  • Page 24: Screw-Type Terminals Of The Connector Block

    7XT33 – 20 Hz Generator 1.8 Screw-Type Terminals of the Connector Block Screw-Type Terminals of the Connector Block [dw_7xr81-st_12-pole_terminal_B, 1, en_US] Figure 1-11 Screw-Type Terminals on the 12-Pin Terminal Block Connector Designation Auxiliary voltage, L1 (U Auxiliary voltage, L2 (U Auxiliary voltage, L3 Ground, PE Signal relay L+...

  • Page 25: Connection Data

    7XT33 – 20 Hz Generator 1.9 Connection Data Connection Data If fork-type cable lugs or connector sleeves are used, the crimp zone must be insulated to comply with the required insulating clearance. This can also be done using shrink-on sleeve. The following data must be met: Cable lugs for bolt diameter 4 mm...

  • Page 26: Technical Data

    7XT33 – 20 Hz Generator 1.10 Technical Data 1.10 Technical Data Auxiliary Voltages 1.10.1 Voltage supply via extended range power supply unit DC Voltage Nominal auxiliary DC voltage DC 110 V to 220 V Permissible DC voltage range DC 88 V to 250 V AC Voltage (50 Hz to 60 Hz) Nominal auxiliary AC voltage, 3-phase 3 x AC 100 V to 120 V...

  • Page 27: Signal Relay

    7XT33 – 20 Hz Generator 1.10 Technical Data For control voltages DC 110 V DC 88 V: U ≥ DC 88 V, U ≤ DC 44 V high DC 125 V max. 1.8 mA DC 220 V DC 250 V Permissible voltage, continous DC 300 V Signal Relay...

  • Page 28: Electrical Tests

    7XT33 – 20 Hz Generator 1.11 Electrical Tests 1.11 Electrical Tests Standards 1.11.1 IEC 60255-26 (product standard) VDE 0435 Additional standards are listed for the individual tests. Installation Requirements 1.11.2 Overvoltage category Degree of pollution Protection class Insulation Tests 1.11.3 Standards IEC 60255-27 High-Voltage Test (routine test)

  • Page 29: Emc Tests For Noise Emission (Type Tests)

    7XT33 – 20 Hz Generator 1.11 Electrical Tests High-Energy Surge Voltages (SURGE), Pulse: 1.2 μs/50 μs IEC 60255-26 (zone B), IEC 61000-4-5 • Auxiliary voltage Common mode: 2 kV, 12 Ω, 9 μF Differential mode: 1 kV, 2 Ω, 18 μF •...

  • Page 30: Mechanical Tests

    7XT33 – 20 Hz Generator 1.12 Mechanical Tests 1.12 Mechanical Tests Vibration and Shock Stress in Stationary Use 1.12.1 Standards IEC 60255-21 and IEC 60068 Vibration Test (sinusoidal) Sinusoidal IEC 60255-21-1, class 2 and 10 Hz to 60 Hz: ± 0.075 mm amplitude; IEC 60068-2-6 60 Hz to 150 Hz: 15 g acceleration Frequency sweep 1 octave/min...

  • Page 31: Environmental Conditions

    7XT33 – 20 Hz Generator 1.13 Environmental Conditions 1.13 Environmental Conditions Temperatures 1.13.1 Standards IEC 60255-6 Permissible temporary operating temperature (tested for 96 h) -25 °C to +70 °C Recommended for continuous operation (acc. to IEC 60255-6) -5 °C to +55 °C Limit temperatures for storage -25 °C to +55 °C Limit temperatures during transport...
  • Page 32 SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...

  • Page 33: 7Xt34 - 20 Hz Band-Pass Filter

    7XT34 – 20 Hz Band-pass Filter Application Selection and Ordering Data Block Diagram Connection Notes Construction Properties Technical Data Electrical Tests Mechanical Tests Environmental Conditions 2.10 Protection Degree According to IEC 60529 2.11 Operating Conditions SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...

  • Page 34: Application

    7XT34 – 20 Hz Band-pass Filter 2.1 Application Application The 20-Hz band-pass filter 7XT34 is used in combination with the 20-Hz generator 7XT33 for the SIPROTEC 4 7UM62 machine protection and SIPROTEC 5 7UM85 generator protection. In this connection, the 20-Hz generator is the source for biasing the generator neutral point to implement a 100 % stator ground fault protection.

  • Page 35: Selection And Ordering Data

    7XT34 – 20 Hz Band-pass Filter 2.2 Selection and Ordering Data Selection and Ordering Data Description Order No. Position Accessories for 100 % stator ground-fault protection 7 X T 3 4 0 0 - 0 ☐ A 0 0 Band-pass filter, 20 Hz, for housing For panel surface mounting 7XP20 For panel flush mounting...

  • Page 36: Block Diagram

    7XT34 – 20 Hz Band-pass Filter 2.3 Block Diagram Block Diagram [dw_block-diagram_7xt34_FC, 1, en_US] Figure 2-1 Block Diagram SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...

  • Page 37: Connection Notes

    7XT34 – 20 Hz Band-pass Filter 2.4 Connection Notes Connection Notes Overview 2.4.1 The device has two 4-pole 600 V terminal blocks with tension sleeve. • Ground the device at the grounding areas with low resistance and low inductance. • Establish the connections via the screw terminals.

  • Page 38: Connection Data

    7XT34 – 20 Hz Band-pass Filter 2.4 Connection Notes NOTE After crimping, the used bootlace ferrules must comply with the geometry for terminal chamber dimen- sions according to EN 60 947-7, test mandrel A1. • Insert the connecting cable into the terminal chamber as far as it will go and screw the terminal screw tight observing the permitted tightening torques.

  • Page 39: Construction Properties

    7XT34 – 20 Hz Band-pass Filter 2.5 Construction Properties Construction Properties Mechanical Structure 2.5.1 [sc_7XT34-device, 1, --_--] Figure 2-3 Mechanical Design SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...

  • Page 40: Dimensions

    7XT34 – 20 Hz Band-pass Filter 2.5 Construction Properties Dimensions 2.5.2 2.5.2.1 Panel Surface Mounting [dw_7xt34_dimension_surface_panel_variant_CC, 1, en_US] Figure 2-4 Housing for Panel Surface Mounting 7XP2040-1 (Device Version 7XT3400-0BA00/CC) SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...
  • Page 41 7XT34 – 20 Hz Band-pass Filter 2.5 Construction Properties For panel surface mounting the following parts are necessary: 2x angle brackets C73165-A63- C201-*, 4x distance elements C73165-A63-C203-* and 8x stainless steel screws size M4. Fit threaded holes M6, bolts M6, or suitable dowel drill holes into the panel according to the drawing.

  • Page 42: Panel Flush Mounting

    7XT34 – 20 Hz Band-pass Filter 2.5 Construction Properties • Fasten the mounting brackets to the mounting brackets of the housing using M4 screws. • Set M6 threaded holes, M6 bolts or corresponding dowel drills according to Figure 2-4. • Use adaptors to fasten the 7XT34 device with attached mounting brackets to the switch panel using 6-mm screws.
  • Page 43 7XT34 – 20 Hz Band-pass Filter 2.5 Construction Properties For panel flush mounting the following parts are necessary: 2 angle brackets C73165-A63-C201-* and 4 stainless-steel screws size M4, since the mounting brackets of the device housing are not sufficient for the heavy weight of the device. Fix the set angle brackets to the panel, using 8 standard screws of size M6 according to the drawing.
  • Page 44 7XT34 – 20 Hz Band-pass Filter 2.5 Construction Properties • Fasten the mounting brackets to the switch panel using M6 screws. • Fasten the device to the mounting brackets using M4 screws (no hexagon bolts). NOTE If the control cabinet features supporting cross-beams, you do not need mounting brackets for installation into the control cabinets.

  • Page 45: Technical Data

    7XT34 – 20 Hz Band-pass Filter 2.6 Technical Data Technical Data Load Capability of the Band-pass Filter 2.6.1 From terminal 1 B through 4 B Superimposed alternating voltage, continuous AC 55 V Superimposed alternating voltage, short-time AC 550 V for ≤ 30 s Frequency of the superimposed alternating voltage ≥...

  • Page 46: Electrical Tests

    7XT34 – 20 Hz Band-pass Filter 2.7 Electrical Tests Electrical Tests Standards 2.7.1 IEC 60255 (product standard) IEEE C37.90 Additional standards are listed for the individual tests. Installation Requirements 2.7.2 Overvoltage category Degree of pollution Protection class Insulation and Safety Tests 2.7.3 Standards IEC 60255-27...

  • Page 47: Emc Electromagnetic Emission Tests (Type Tests, Test Under Mounting Conditions)

    7XT34 – 20 Hz Band-pass Filter 2.7 Electrical Tests High-energy surge voltages Pulse: 1.2 µs/50 µs IEC 61000-4-5 Measuring inputs, binary inputs, and relay outputs (no differen- tial mode testing) Common mode: 4 kV, 42 Ω, 0.5 µF Differential mode: 1 kV, 42 Ω, 0.5 µF Conducted RF, amplitude-modulated 10 V, 150 kHz to 80 MHz, IEC 61000-4-6...

  • Page 48: Mechanical Tests

    7XT34 – 20 Hz Band-pass Filter 2.8 Mechanical Tests Mechanical Tests Vibration and Shock Stress in Stationary Use 2.8.1 Standards IEC 60255-21 and IEC 60068 Vibration Test (sinusoidal) Sinusoidal IEC 60255-21-1, class 2 and 10 Hz to 60 Hz: ± 0.035 mm amplitude IEC 60068-2-6 60 Hz to 150 Hz;...

  • Page 49: Environmental Conditions

    7XT34 – 20 Hz Band-pass Filter 2.9 Environmental Conditions Environmental Conditions Temperatures 2.9.1 Type test, in operation -25 °C to +85 °C (-13 °F to 185 °F) (in compliance with IEC 60068-2-1 and IEC 60068-2-2, test Ad for 16 h and test Bd for 16 h) Recommended for uninterrupted duty -10 °C to +55 °C (14 °F to 131 °F) (in compliance with IEC 60255-1)

  • Page 50: Protection Degree According To Iec 60529

    7XT34 – 20 Hz Band-pass Filter 2.10 Protection Degree According to IEC 60529 2.10 Protection Degree According to IEC 60529 For the equipment IP20 For personal protection IP2x To meet IP2x on Terminal B, you must take additional measures. After installation of the cables, the terminal has to be properly covered using an insulating material to avoid direct contact to the screws (for example, using the self-adhesive tape Terosat 2750 by Henkel);...

  • Page 51: Operating Conditions

    7XT34 – 20 Hz Band-pass Filter 2.11 Operating Conditions 2.11 Operating Conditions The protection device is designed for flush mounting in conventional relay rooms and systems such that electromagnetic compatibility (EMC) is ensured with proper flush mounting. Siemens additionally recommends: •...
  • Page 52 SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...

  • Page 53: Connection Examples

    Connection Examples Connection of the Device 7XT33 to a DC-Voltage Supply 100 % Stator Ground-Fault Protection SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...

  • Page 54: Connection Of The Device 7Xt33 To A Dc-Voltage Supply

    Connection Examples 3.1 Connection of the Device 7XT33 to a DC-Voltage Supply Connection of the Device 7XT33 to a DC-Voltage Supply [dw_connection_example_7XT33, 1, en_US] Figure 3-1 Connection of the Device 7XT33 to a DC-Voltage Supply via a 6-A Protective Switch SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...

  • Page 55: 100 % Stator Ground-Fault Protection

    Connection Examples 3.2 100 % Stator Ground-Fault Protection 100 % Stator Ground-Fault Protection [dw_conn example 7UM85 stator ground fault, 4, en_US] Figure 3-2 100 % Stator Ground-Fault Protection with 7XT33 20-Hz Generator and 7XT34 Band-Pass Filter The voltage divider is only required for voltages of > 200 V at the secondary side. The voltage divider must be connected directly to the RL load resistor via 2 phases.
  • Page 56 SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...

  • Page 57: Commissioning And Maintenance

    Commissioning and Maintenance Unpacking a Device Commissioning Storing a Device Repacking a Device Returning a Device Environmental Protection Hints SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...

  • Page 58: Unpacking A Device

    Commissioning and Maintenance 4.1 Unpacking a Device Unpacking a Device Devices are tested prior to delivery. Devices are packed on site in a way that meets the requirements of standard ISO 2248. How to proceed Check the packing for external transport damage. Damaged packing may indicate that the devices inside ²...

  • Page 59: Commissioning

    Commissioning and Maintenance 4.2 Commissioning Commissioning How to proceed Commission and install the products according to the user manual. ² During installation of a device, the generator, its accessories and the secondary devices – like the ² protection relays – must be disconnected and properly grounded. Disconnect the device during the insulation tests for the generator or the excitation system according to ²...

  • Page 60: Storing A Device

    Commissioning and Maintenance 4.3 Storing a Device Storing a Device How to proceed Store SIPROTEC devices in rooms which are clean and dry. Store devices or associated replacement ² modules at a temperature of –25 °C to +55 °C (-13 °F to 131 °F). The relative humidity must be at a level where condensate and ice is prevented from forming.

  • Page 61: Repacking A Device

    Commissioning and Maintenance 4.4 Repacking a Device Repacking a Device How to proceed If you store devices after incoming inspection, pack them in suitable storage packing. ² If you need to transport devices, pack them in transport packing. ² Pack the accessories that were supplied in the packing with the device. ²...

  • Page 62: Returning A Device

    Commissioning and Maintenance 4.5 Returning a Device Returning a Device NOTE If the wired terminals of the defective base module must remain in the system, fit the defective base module with the terminals of the replacement module or order replacement terminals. How to proceed Ensure that the devices are either shipped with the original terminals, ²...

  • Page 63: Environmental Protection Hints

    Commissioning and Maintenance 4.6 Environmental Protection Hints Environmental Protection Hints Disposal of Old Equipment and Batteries (Applicable only for European Union and Countries with a Recycling System) The disposal of our products and possible recycling of their components after decommissioning has to be carried out by an accredited recycling company, or the products/components must be taken to applicable collection points.
  • Page 64 SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...

  • Page 65: Modification History

    Modification History Modification History 7XT33 Modification History 7XT34 SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...

  • Page 66: Modification History 7Xt33

    Modification History A.1 Modification History 7XT33 Modification History 7XT33 Device Version Changes 7XT3300-0BA00/BB 1st approach 7XT3300-0CA00/BB 7XT3300-0BA00/DD Hardware redesign 7XT3300-0CA00/DD New feature: brake 20-Hz voltage while shortage or high reverse voltage (> 73 V) from generator Update housing to SIPROTEC 4 (same mechanical data) New terminal (connector for SIPROTEC 4 with 12 pins);...

  • Page 67: Modification History 7Xt34

    Modification History A.2 Modification History 7XT34 Modification History 7XT34 Device Version Changes 7XT3400-0xA00/BB 1st approach 7XT3400-0xB00/BB Additional ordering version with ring-type lug connection 7XT3400-0xA00/CC New device version with the following changes: • new connectors with cable sleeve • optimization of the internal design 7XT3400-0xA00/DD New terminals A+B in the device, mating face rotated by 180°, see position of the cable mounting plate...
  • Page 68 SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...
  • Page 69 Index 1,2,3 ... 7XT33 Electrical tests Block diagram 16 7XT33 28 Electrical tests 28 7XT34 46 Environmental conditions 31 Environmental conditions Mechanical structure 18 7XT33 31 Mechanical tests 30 7XT34 49 Panel flush mounting 22 Panel surface mounting 22 Technical data 26 7XT33 –...
  • Page 70 Index 7XT33 26 7XT34 45 Unpacking 58 SIPROTEC, 20 Hz-Generator and Band-pass Filter, Manual C53000-G5740-C003-1, Edition 01.2025...

This manual is also suitable for:

Siprotec 7xt34

Table of Contents