Benefits

Note: IEEE device functions are configured through the BE1-11 style number.

• Entering protection settings with confidence is easy with BESTCOMSPlus® software that provides intuitive settings with graphs, built-in error checking, and summary screens.
• Complex protection schemes are easy to configure and understand with preprogrammed schemes, drag-and-drop logic, user labels, and notes provided by BESTlogic™Plus.
• The Offline Simulator in BESTlogic™Plus helps identify and troubleshoot the logic without the expensive need for physical hardware.
• Adaptable coordination for difficult applications is made possible by 24 industry-standard timing curves and five user-defined curves.
• Meet your modern communications needs with 10/100Mbit copper or 100Mbit fiber-optic Ethernet with IEC 61850, DNP, or Modbus®.
• Connection is easy, even when using multiple large wires, with large screw terminals for all terminations.
• Get the information you need for system analysis with distance-to-fault, oscillography, demand metering, power quality, breaker monitoring, and other data provided by the BE1-11.
• Easily navigate settings and metering with the intuitive Human Machine Interface (HMI) menu and large LCD display.
• Fully configurable analog outputs can be used to drive analog meters. Easily assign trip points and scale them to reflect measured parameters.
• Up to 14 combined alarm and trip temperature monitoring points are possible using an optional RTD module.
• Reduce installation costs and improve reliability by mounting an optional RTD module near the point of measurement to minimize cable lengths.
• UL Class 1, Div 2 rating allows the optional RTD module to be installed in harsh environments.

Manuals

Bulletins

• Product Bulletin

  • BE1-11d Bulletin, Rev 6, English (897.1KB)
    DC Power Protection System
  • BE1-11f Bulletin, Rev 26, English (792.7KB)
    Feeder Protection System
  • BE1-11g Bulletin, Rev 21, English (802.4KB)
    Generator Protection System
  • BE1-11i Bulletin, Rev 20, English (719.6KB)
    Intertie Protection System
  • BE1-11m Bulletin, Rev 23, English (621.7KB)
    Motor Protection System
  • BE1-11t Bulletin, Rev 17, English (1MB)
    Transformer Protection System
  • Standards, Dimensions and Accessories, Rev 23, English (1.4MB)
    BE1 Protection Systems and Relays
  • BE1-11d Bulletin, Rev 6, Chinese (975.8KB)
    DC Power Protection System
  • BE1-11d Bulletin, Rev 6, French (909.6KB)
    DC Power Protection System
  • BE1-11d Bulletin, Rev 6, Spanish (895.6KB)
    DC Power Protection System
  • BE1-11f Bulletin, Rev 26, Chinese (1.2MB)
    Feeder Protection System
  • BE1-11g Bulletin, Rev 21, Chinese (1.3MB)
    Generator Protection System
  • BE1-11g Bulletin, Rev 21, French (804.5KB)
    Generator Protection System
  • BE1-11i Bulletin, Rev 20, Chinese (1.1MB)
    Intertie Protection System
  • BE1-11m Bulletin, Rev 23, Chinese (1003.7KB)
    Motor Protection System
  • BE1-11t Bulletin, Rev 17, Chinese (1.3MB)
    Transformer Protection System

• Brochure

  • Brochure: Power Systems Solutions - Proven Worldwide, English (5.9MB)
    Solutions for Excitation Systems, Protection Systems/Relays, Voltage Regulators, and Genset/Engine Controllers.
  • Brochure: Power Systems Solutions - Proven Worldwide, Japanese (6.4MB)
    Solutions for Excitation Systems, Protection Systems/Relays, Voltage Regulators, and Genset/Engine Controllers.

• Flyer

  • BE1-11 Digital Protection System: One Powerful and Intuitive Product for Many Applications (1.2MB)
    The BE1-11 digital protection system is designed with many features to addresses reliability issues that can arise from programming complexity.
  • Introducing the BE1-11d - DC Power Protection System (752.7KB)

Technical Resources

• ANSI Device Reference Sheet

  • Common IEEE Device Numbers, English (133.9KB)
  • Common IEEE Device Numbers, Chinese (191.5KB)
  • Common IEEE Device Numbers, French (133.9KB)
  • Common IEEE Device Numbers, German (140KB)
  • Common IEEE Device Numbers, Spanish (132.5KB)

• Application Guide

  • Application Guide: Generator Protection (2.5MB)
    Simplify the process of selecting relays and relay systems to protect generators.
  • Application Guide: Motor Protection (1.3MB)
    Overview of motor hazards and detection and protection options, plus typical setting-value range for BE1-11m.
  • Application Guide: Transformer Protection (2.2MB)
    Simplify the process of selecting relays and relay systems to protect power transformers.

• Conversion Chart

  • Easy Conversion Chart: BE1-46N to BE1-11f (PDF) (583.2KB)
    Style conversion chart makes it easy to determine the style you need.
  • Easy Conversion Chart: BE1-46N to BE1-11f (XLSX) (1.1MB)
    Style conversion chart makes it easy to determine the style you need.
  • Easy Conversion Chart: BE1-50BF to BE1-11f (PDF) (668.5KB)
    Style conversion chart makes it easy to determine the style you need.
  • Easy Conversion Chart: BE1-50BF to BE1-11f (XLSX) (1.2MB)
    Style conversion chart makes it easy to determine the style you need.
  • Easy Conversion Chart: BE1-67 to BE1-11f (PDF) (584.6KB)
    Style conversion chart makes it easy to determine the style you need.
  • Easy Conversion Chart: BE1-67 to BE1-11f (XLSX) (1.1MB)
    Style conversion chart makes it easy to determine the style you need.
  • Easy Conversion Chart: BE1-951 to BE1-11f (PDF) (845.2KB)
    Style conversion chart makes it easy to determine the style you need.
  • Easy Conversion Chart: BE1-951 to BE1-11f (XLSX) (1.3MB)
    Style conversion chart makes it easy to determine the style you need.
  • Easy Conversion Chart: BE1-CDS220 to BE1-11t (PDF) (641.4KB)
    Style conversion chart makes it easy to determine the style you need.
  • Easy Conversion Chart: BE1-CDS220 to BE1-11t (XLSX) (1.1MB)
    Style conversion chart makes it easy to determine the style you need.
  • Easy Conversion Chart: BE1-GPS100 to BE1-11g (PDF) (847.7KB)
    Style conversion chart makes it easy to determine the style you need.
  • Easy Conversion Chart: BE1-GPS100 to BE1-11g (XLSX) (1.3MB)
    Style conversion chart makes it easy to determine the style you need.
  • Easy Conversion Chart: BE1-IPS100 to BE1-11i (PDF) (923.4KB)
    Style conversion chart makes it easy to determine the style you need.
  • Easy Conversion Chart: BE1-IPS100 to BE1-11i (XLSX) (1.3MB)
    Style conversion chart makes it easy to determine the style you need.

• Guideform Specification

  • Guideform Specification: BE1-11d (DOC) (41.4KB)
  • Guideform Specification: BE1-11d (PDF) (139.1KB)
  • Guideform Specification: BE1-11f (DOC) (43.3KB)
  • Guideform Specification: BE1-11f (PDF) (136.7KB)
  • Guideform Specification: BE1-11g (DOC) (43.8KB)
  • Guideform Specification: BE1-11g (PDF) (140.1KB)
  • Guideform Specification: BE1-11i (DOC) (43.4KB)
  • Guideform Specification: BE1-11i (PDF) (42.6KB)
  • Guideform Specification: BE1-11m (DOC) (44.1KB)
  • Guideform Specification: BE1-11m (PDF) (140.4KB)
  • Guideform Specification: BE1-11t (DOC) (42.7KB)
  • Guideform Specification: BE1-11t (PDF) (135.2KB)
  • Guideform Specification: BE1-11g, Spanish (DOC) (42.5KB)
  • Guideform Specification: BE1-11g, Spanish (PDF) (155KB)

• Logic Scheme

  • Logic Scheme: Application of the Auto Synchronizer Function in BE1-11g (2.6MB)
    Compressed file includes Application Note, BESTspace™ file, and logic file.
  • Logic Scheme: Backup Bus Overcurrent Logic (1.3MB)
    Compressed file includes Application Note, BESTspace™ file, printable screenshots, and logic file.
  • Logic Scheme: Basic High Gen Logic (1.4MB)
    Compressed file includes Application Note, BESTspace™ file, printable screenshots, and logic file.
  • Logic Scheme: Basic Low Gen Logic (1.4MB)
    Compressed file includes Application Note, BESTspace™ file, printable screenshots, and logic file.
  • Logic Scheme: Basic Overcurrent Logic (1.3MB)
    Compressed file includes Application Note, BESTspace™ file, printable screenshots, and logic file.
  • Logic Scheme: BE1-11f Conversion from BE1-46N (2.2MB)
    Compressed file includes Application Note, BESTspace™ file, and printable screenshots.
  • Logic Scheme: DC Traction Application for BE1-11d (747KB)
    Compressed file includes logic file and descriptive PDF.
  • Logic Scheme: Feeder with Interlock Logic (1.3MB)
    Compressed file includes Application Note, BESTspace™ file, printable screenshots, and logic file.
  • Logic Scheme: High Impedance Gen with Sequence Logic (1.4MB)
    Compressed file includes Application Note, BESTspace™ file, printable screenshots, and logic file.
  • Logic Scheme: Intertie Logic (1.4MB)
    Compressed file includes Application Note, BESTspace™ file, printable screenshots, and logic file.
  • Logic Scheme: Low Impedance Gen with Seq and Sync Logic (1.5MB)
    Compressed file includes Application Note, BESTspace™ file, printable screenshots, and logic file.
  • Logic Scheme: Low Impedance Gen with Seq Logic (1.5MB)
    Compressed file includes Application Note, BESTspace™ file, printable screenshots, and logic file.
  • Logic Scheme: Over Excitation with Reverse Power Permissive (750.6KB)
    Compressed file includes Application Note, BESTspace™ file, and logic file.
  • Logic Scheme: Overcurrent with Control Logic (1.3MB)
    Compressed file includes Application Note, BESTspace™ file, printable screenshots, and logic file.
  • Logic Scheme: Overcurrent with Reclosing Logic (1.3MB)
    Compressed file includes Application Note, BESTspace™ file, printable screenshots, and logic file.
  • Logic Scheme: Primary Bus Overcurrent Logic (1.3MB)
    Compressed file includes Application Note, BESTspace™ file, printable screenshots, and logic file.

• Mounting Accessory Drawing

  • BE1-11, Drawing, 9108551021, J Case (DWG) (85.7KB)
    Adapter plate for GE S2 or ABB FT-21 cutout.
  • BE1-11, Drawing, 9108551021, J Case (PDF) (145.5KB)
    Adapter plate for GE S2 or ABB FT-21 cutout.
  • BE1-11, Drawing, 9108551022, J Case (DWG) (70.7KB)
    Adapter plate for ABB FT-31/FT-32 cutout.
  • BE1-11, Drawing, 9108551022, J Case (PDF) (73.3KB)
    Adapter plate for ABB FT-31/FT-32 cutout.
  • BE1-11, Drawing, 9108551029, J Case (DWG) (100.6KB)
    Adapter plate for GE M1/M2 or Basler M1 cutout.
  • BE1-11, Drawing, 9108551029, J Case (PDF) (66.4KB)
    Adapter plate for GE M1/M2 or Basler M1 cutout.
  • BE1-11, Drawing, 9424226101, J Case (DWG) (177.4KB)
    Pivoting projection-mounting kit.
  • BE1-11, Drawing, 9424226101, J Case (PDF) (106.7KB)
    Pivoting projection-mounting kit.
  • BE1-11d, Drawing, 9424200073, J Case (DWG) (171.2KB)
    Retrofit mounting plate for Multilin 735/737 and 750/760.
  • BE1-11d, Drawing, 9424200073, J Case (PDF) (164.9KB)
    Retrofit mounting plate for Multilin 735/737 and 750/760.
  • BE1-11f, Drawing, 9424200073, J Case (DWG) (171.2KB)
    Retrofit mounting plate for Multilin 735/737 and 750/760.
  • BE1-11f, Drawing, 9424200073, J Case (PDF) (164.9KB)
    Retrofit mounting plate for Multilin 735/737 and 750/760.
  • BE1-11g, Drawing, 9424200073, J Case (DWG) (171.2KB)
    Retrofit mounting plate for Multilin 489.
  • BE1-11g, Drawing, 9424200073, J Case (PDF) (164.9KB)
    Retrofit mounting plate for Multilin 489.
  • BE1-11m, Drawing, 9424200073, J Case (DWG) (171.2KB)
    Retrofit mounting plate for Multilin 469.
  • BE1-11m, Drawing, 9424200073, J Case (PDF) (164.9KB)
    Retrofit mounting plate for Multilin 469.
  • BE1-11m, Drawing, 9424200074, J Case (DWG) (148KB)
    Retrofit mounting plate for non-drawout Multilin 269/369.
  • BE1-11m, Drawing, 9424200074, J Case (PDF) (104.9KB)
    Retrofit mounting plate for non-drawout Multilin 269/369.
  • BE1-11m, Drawing, 9424200075, J Case (DWG) (155KB)
    Retrofit mounting plate for drawout Multilin 269.
  • BE1-11m, Drawing, 9424200075, J Case (PDF) (105.5KB)
    Retrofit mounting plate for drawout Multilin 269.
  • BE1-11t, Drawing, 9424200073, J Case (DWG) (171.2KB)
    Retrofit mounting plate for Multilin 345/745.
  • BE1-11t, Drawing, 9424200073, J Case (PDF) (164.9KB)
    Retrofit mounting plate for Multilin 345/745.

• Product Drawing

  • BE1-11 (f,g,i,m,t), Drawing: Rear, Fiber Optic Ethernet, J Case, 10 Inputs 5 Outputs (DWG) (223.6KB)
  • BE1-11 (f,g,i,m,t), Drawing: Rear, Fiber Optic Ethernet, J Case, 10 Inputs 5 Outputs (PDF) (131.7KB)
  • BE1-11 (f,g,i,m,t), Drawing: Rear, Fiber Optic Ethernet, J Case, 7 Inputs 8 Outputs (DWG) (201.2KB)
  • BE1-11 (f,g,i,m,t), Drawing: Rear, Fiber Optic Ethernet, J Case, 7 Inputs 8 Outputs (PDF) (67.5KB)
  • BE1-11 (f,g,i,m,t), Drawing: Rear, RJ-45 Ethernet, J Case, 10 Inputs 5 Outputs (DWG) (231.6KB)
  • BE1-11 (f,g,i,m,t), Drawing: Rear, RJ-45 Ethernet, J Case, 10 Inputs 5 Outputs (PDF) (131.8KB)
  • BE1-11 (f,g,i,m,t), Drawing: Rear, RJ-45 Ethernet, J Case, 7 Inputs 8 Outputs (DWG) (206.3KB)
  • BE1-11 (f,g,i,m,t), Drawing: Rear, RJ-45 Ethernet, J Case, 7 Inputs 8 Outputs (PDF) (68.1KB)
  • BE1-11 RTD, Drawing: Outline (DWG) (550.2KB)
  • BE1-11 RTD, Drawing: Outline (PDF) (56.7KB)
  • BE1-11, Drawing: Cutout, J Case (DWG) (65.3KB)
  • BE1-11, Drawing: Cutout, J Case (PDF) (51.1KB)
  • BE1-11, Drawing: Front, J Case (DWG) (144.7KB)
  • BE1-11, Drawing: Front, J Case (PDF) (80.4KB)
  • BE1-11, Drawing: Outline, H1 Panel-Mount Case (DWG) (554KB)
  • BE1-11, Drawing: Outline, H1 Panel-Mount Case (PDF) (73.9KB)
  • BE1-11, Drawing: Outline, H1 Rack-Mount Case (DWG) (1.2MB)
  • BE1-11, Drawing: Outline, H1 Rack-Mount Case (PDF) (174.2KB)
  • BE1-11, Drawing: Top and Side, J Case (DWG) (521.2KB)
  • BE1-11, Drawing: Top and Side, J Case (PDF) (35.6KB)
  • BE1-11d, Drawing: Rear, Fiber Optic Ethernet, J Case (DWG) (192.2KB)
  • BE1-11d, Drawing: Rear, Fiber Optic Ethernet, J Case (PDF) (66.3KB)
  • BE1-11d, Drawing: Rear, RJ-45 Ethernet, J Case (DWG) (198.8KB)
  • BE1-11d, Drawing: Rear, RJ-45 Ethernet, J Case (PDF) (67.2KB)
  • IT-D, Drawing: Outline (DWG) (694.3KB)
  • IT-D, Drawing: Outline (PDF) (59.2KB)

• Retrofit Chart

  • The Upgrade Experts — Plug-and-Play and Retrofit Relays (169KB)

• Software Tool (spreadsheet)

  • Spreadsheet: "P" Curve Coefficients for Coordination with Cooper Reclosers (589KB)
    This workbook is intended for use with the Basler Application Note PC-RECLOSER "Basler Numeric Relays Offer Better Coordination for Recloser".
  • Spreadsheet: Harmonic Content Analysis Tool (6.9MB)
    This spreadsheet performs the following: a) Convert a harmonic series to the summation waveform (Inverse Fourier Transform), and b) Calculate the harmonic content of the users sample data waveform (Fourier Transform). This spreadsheet provides tutorial information on how Fourier analysis calculations are handled.
  • Spreadsheet: Perform Basic Complex Number Calculations, Sequence Component Conversions, and other Basic Calculations Associated with Electric Power Systems (685KB)
  • Spreadsheet: Time Current Characteristic Curve Calculator (187.5KB)
    Time current characteristic-curve calculator spreadsheet.
  • Spreadsheet: Transformer Differential Analysis Tool (443KB)

• Technical Paper

  • Technical Paper: A Derivation of Symmetrical Component Theory and Symmetrical Component Networks (1MB)
    Review symmetrical component analysis.
  • Technical Paper: A Practical Guide for Detecting Single-Phasing on a Three-Phase Power System (1.2MB)
    Reference for the loss of one or two phases of a radial three-phase system and includes suggested detection and protection methods.
  • Technical Paper: A Review of Ferroresonance (916KB)
    The basics of a ferroresonant condition.
  • Technical Paper: A Review of High-Impedance and Low-Impedance Differential Relaying for Bus Protection (311.4KB)
    Fundamentals of bus protection with a focus on high-impedance and low-impedance bus differential relaying.
  • Technical Paper: A Review of Negative-Sequence Current (671.2KB)
    Negative-sequence current and the damage it can cause to rotating machines.
  • Technical Paper: A Review of System-Grounding Methods and Zero-Sequence Current Sources (1.1MB)
    Grounding methods, sources of ground current, ground-current flow in the power system, and how each impacts protective relaying.
  • Technical Paper: A Review of Wye/Delta Transformer Connections and How They Affect Measured Current and Voltage (457.4KB)
    The transformer is arguably one of the key technologies that led to AC winning over DC in the contest to distribute electricity across the US and the world.
  • Technical Paper: A Survey of Cold Load Pickup Practices (1MB)
    Cold load pickup, the causes and effects.
  • Technical Paper: Analysis of Transformer Inrush Current and Comparison of Harmonic Restraint Methods in Transformer Protection (1.3MB)
    Factors affecting the second-harmonic ratio in inrush current and various harmonic restraint methods.
  • Technical Paper: Application of Islanding Protection for Industrial- and Commercial-Generators (990.9KB)
    Issues associated with the islanding of an industrial- or commercial-facility power system where a synchronous generator operates in parallel with the utility source.
  • Technical Paper: Arc Flash Mitigation Through Use of Voltage Controlled/Voltage Restrained Overcurrent Elements (244.2KB)
    The use of voltage controlled/voltage restrained overcurrent elements as an arc flash mitigation technique.
  • Technical Paper: Automatic Reclosing - Transmission Line Applications and Consideration (1.2MB)
    Applying autoreclosing to transmission circuits.
  • Technical Paper: Breaker Monitoring with Numerical Relays (789.7KB)
    Breaker duty/contact wear monitoring.
  • Technical Paper: Bus-Protective Relaying, Methods and Application (1.9MB)
    Application of bus-protective relaying, describing and comparing differences.
  • Technical Paper: Choosing the Correct Transfer Switch (569.1KB)
    For effective ground-fault protection, transfer switch must be chosen at project beginning.
  • Technical Paper: Commissioning Numerical Relays (1.1MB)
    Experienced-based changes to commissioning tests and revised documentation of settings as a method for commissioning.
  • Technical Paper: Considerations for Effective RS-485 Network Design (385.1KB)
    Considerations for effective RS-485 network design.
  • Technical Paper: Current Transformer Errors and Transformer Inrush as Measured by Magnetic, Optical and other Unconventional CTs (1.4MB)
    Errors in secondary current for these primary current conditions determine when CTs are at risk, and show, using numerical analysis, the output of a saturated CT.
  • Technical Paper: Directional Overcurrent Relaying in the Distributed Generation Environment (1.4MB)
    Basics of directional overcurrent relaying as applied in modern numeric relays.
  • Technical Paper: Distributive Generation and Interconnection: Protection, Monitoring, and Interconnection Opportunities (1.8MB)
    Paralleling a distributed-generation supply to an electric power system involves protection, monitoring and control of the interconnection.
  • Technical Paper: Effects of Distributed Generation on Utility Protection Schemes (782.1KB)
    Addition of distributed generation to a distribution feeder can be minimized by having digital multifunction overcurrent with voltage-protection schemes.
  • Technical Paper: Extending Motor Life with Updated Thermal Model Overload Protection (917.5KB)
    Updates in the 49 thermal model provide better motor protection.
  • Technical Paper: Fundamentals and Advances in Breaker-Failure Protection (1.1MB)
    Deciding whether to apply dedicated breaker failure protection.
  • Technical Paper: Get in Step with Synchronization (712.6KB)
    Review of power-system synchronization.
  • Technical Paper: Green Power - Wind Generated Protection and Control Considerations (1.4MB)
    Green power projects like wind farms allow protection and control engineers to use modern technology to provide cost effective systems.
  • Technical Paper: Ground Differential Protection: Revisited (662.5KB)
    Principles of ground differential protection within industrial power systems.
  • Technical Paper: Harmonic Sharing for Effective Detection of Transformer Inrush Condition in Differential Protection Scheme (961.5KB)
    Harmonic sharing in transformer differential protection improves security for some inrush conditions, while maintaining sensitivity.
  • Technical Paper: Intertie Requirements for DGs Connected to Radial-Distribution Feeders (537.3KB)
    Proposed protection requirements for distributed generation connected to radial-distribution feeders.
  • Technical Paper: Introduction to Synchronizing (181.5KB)
    Automatic synchronizing process and a guide for selection of the proper synchronizer.
  • Technical Paper: Life Lessons from the Power System (1.1MB)
    Explores the basic principles of relay protection design and relay protection commissioning, while reflecting upon lessons learned.
  • Technical Paper: Load Shedding for Utility and Industrial Power System Reliability (972.9KB)
    Analysis of the conditions in which load shedding may be needed and review of load shed implementation strategies.
  • Technical Paper: Myths of Protecting the Distributed Resource To Electric Power System Interconnection (1.1MB)
    For the ideology of power-system protection, the myths described in this paper are better described as conditional truths rather than half-truths.
  • Technical Paper: Negative-Sequence Relaying Applications in Ungrounded and High-Impedance Grounded Industrial Systems (988.5KB)
    Negative-sequence overcurrent sensing to detect faults.
  • Technical Paper: New Methods for Detecting Unintentional Islanding for a Distributed-Generation Inverter (849.7KB)
    Islanding testing for an inverter driven by a high-speed, magnetic-levitation generator powered by waste heat from industrial processes.
  • Technical Paper: Power Quality: Measurement of Sags and Interruptions (760.7KB)
    Measurement of power quality use of meters for residential and small commercial customers as a tool to track outage issues.
  • Technical Paper: Practical Experience in Commissioning Distributed Generation Installations (570.9KB)
    Commissioning several distributed generation projects under the auspices of Portland General Electric's Dispatchable Generation Program.
  • Technical Paper: Predicting Current Differential Relay Tripping (2MB)
    Testing current differential relays at final settings.
  • Technical Paper: Protection Considerations for Installation of Distributed Energy Resources (963.9KB)
    This tutorial addresses issues often encountered by utility engineers and Distributed Energy Resources (DER) consultants or developers when negotiating intertie protection requirements between the DER and electric utility.
  • Technical Paper: Protective Relaying Issues in Low-Voltage Systems as Addressed in the National Electric Code (1.6MB)
    Low Voltage (LV) design practices, as mentioned in the National Electric Code (NEC).
  • Technical Paper: Protective Relaying Methods for Reducing Arc-Flash Energy (1MB)
    Arc flash standards/requirements and high-speed detection and operation techniques used to reduce arc-flash energy via protective relays.
  • Technical Paper: Protective Relaying When Distributed Generation is Added to Your Circuit (874.4KB)
    Advantages of having numeric multifunction protection in place when distributed generation is added to a radial-distribution circuit.
  • Technical Paper: Reliability Considerations of Multifunction Protection (731.9KB)
    Reliability of numerical multifunction protection systems against predecessor technologies.
  • Technical Paper: Solutions for Unconventional Connection of Transformer Differential Current Transformers (1.3MB)
    Analyzing unconventional current-transformer polarity connections and how to obtain the right connection to achieve the desired direction of operation or polarity.
  • Technical Paper: Successful DG Projects: Design and Build Considerations (1.2MB)
    Design and build challenges for four DG projects.
  • Technical Paper: Synchronous Motor Control (977.8KB)
    Basic theory of operation and control of the synchronous motor.
  • Technical Paper: Three Phase Transformer Winding Configurations and Differential Relay Compensation (1.6MB)
    How a transformer differential relay compensates for the effects of the various transformer winding configurations.
  • Technical Paper: Upgrading Intertie Protection to meet TX PU Standards (1MB)
    Utilizing multifunction relays as the sole means of protection, not only for the plant and its generation, but also for the utility.
  • Technical Paper: Upgrading Relay Protection? - Be Prepared. (732.6KB)
    Guidance for your next replacement or upgrade project.
  • Technical Paper: Using GOOSE Messages in a Main-Tie-Main Scheme (894.9KB)
    Main-tie-main circuit breaker bus switching scheme performed using IEC 61850 GOOSE messaging.
  • Technical Paper: Using Iop Characteristics to Troubleshoot Transformer Differential Relay Misoperation (1.2MB)
    Transformer differential false trips and methods to alleviate this issue.
  • Technical Paper: Voltage Restrained Time Overcurrent Relay Principles, Coordination, and Dynamic Testing Considerations (729.1KB)
    Dynamic response of 51/27R relays in which the overcurrent element conforms to the dynamic characteristic defined in ANSI C37.112.
  • Technical Paper: Who has the 32? (2.8MB)
    Understanding Directional Power (ANSI device number 32) protection.
  • Technical Paper: Zero-Sequence Circuit of Three-Legged Core Type Transformers (1MB)
    Modified zero-sequence equivalent circuit for a three-legged core-type transformer.
  • Technical Paper: Zero-Sequence Impedance of Overhead Transmission Lines (1.1MB)
    Transmission-line impedances, centering on zero-sequence impedances.

Applications

• Application Guide

  • Application Guide: Generator Protection (2.5MB)
    Simplify the process of selecting relays and relay systems to protect generators.
  • Application Guide: Motor Protection (1.3MB)
    Overview of motor hazards and detection and protection options, plus typical setting-value range for BE1-11m.
  • Application Guide: Transformer Protection (2.2MB)
    Simplify the process of selecting relays and relay systems to protect power transformers.

• Application Note

  • Application Note: PC-11D (662.2KB)
    The BE1-11d DC Power Protection System is a solution applicable for almost any dc power application up to 1,500 Vdc nominal.
  • Application Note: PC-11F (662.2KB)
    Easy conversion from BE1-46N to BE1-11f
  • Application Note: PC-11F02 (590.4KB)
    How to protect distribution system transformers against overexcitation caused by the addition of DER.
  • Application Note: PC-11G (1.4MB)
    AC generator stator protection using the Basler Electric BE1-11g.
  • Application Note: PC-11G02 (2MB)
    Application of the Auto Synchronizer function in BE1-11g.
  • Application Note: PC-11G03 (838.3KB)
    Application of Split-Phase and Self-Balancing Schemes in the BE1-11g.
  • Application Note: PC-11M (1.4MB)
    The benefits of BE1-11m thermal overload protection and maximum setting flexibility.
  • Application Note: PC-11M01 (721.5KB)
    BE1-11m Motor Protection System protects synchronous motors used for power factor correction.
  • Application Note: PC-51Q01 (526.8KB)
    Applying negative-sequence overcurrent elements (BE1-FLEX).
  • Application Note: PC-59N01 (913.7KB)
    A discussion of how system neutral voltages shift during ground faults on high-impedance grounded systems.
  • Application Note: PC-95101 (428.2KB)
    Ideas to implement intertripping with directional overcurrent protection schemes and specifically with the BESTlogic™ in the BE1-951.
  • Application Note: PC-ARCFLASH (996.4KB)
    Several opportunities are available to use relays for the mitigation of arc-flash hazards.
  • Application Note: PC-ARCFLASH2 (804.7KB)
    Helping electric utilities manage NESC 410.A.3 "Flame Retardant Clothing Requirement".
  • Application Note: PC-AURORA (1.4MB)
    Mitigating AURORA vulnerability with BE1-25 and BE1-FLEX.
  • Application Note: PC-BACKUPBUS (1.1MB)
    Preprogrammed Logic: Backup Bus Overcurrent Protection.
  • Application Note: PC-BASICHZ (1.1MB)
    Preprogrammed Logic: Basic High Impedance Generator Protection.
  • Application Note: PC-BASICLOGIC (1.1MB)
    Preprogrammed Logic: Basic Overcurrent Protection.
  • Application Note: PC-BASICLZ (1.1MB)
    Preprogrammed Logic: Basic Low Impedance Generator Protection.
  • Application Note: PC-BESTspace™ (1.3MB)
    Use the BESTCOMSPlus® BESTspace™ feature to easily set your relay.
  • Application Note: PC-CASES (1.1MB)
    Basler Electric cases and dimensions vs. older electromechanical relays.
  • Application Note: PC-CONTROL (1.1MB)
    Preprogrammed Logic: Overcurrent Protection with Control.
  • Application Note: PC-FEEDER (1.1MB)
    Preprogrammed Logic: Feeder Protection with Interlock.
  • Application Note: PC-FLEX-GENPROT (602.6KB)
    Generator Reverse Power Protection (32) replacement opportunities.
  • Application Note: PC-FLEX-TRANSPROT (619KB)
    Increasing power transformer life using through-fault-monitoring and thermal management.
  • Application Note: PC-FLEX-UFLS (1.5MB)
    How to upgrade aging underfrequency protection with the BE1-FLEX.
  • Application Note: PC-HIGHSIDEFUSE (467.7KB)
    An example of how to detect high side fuse operations on a delta-wye transformer with a multifunction digital relay.
  • Application Note: PC-HZGENPROT (1.1MB)
    Preprogrammed Logic: High Impedance Grounded Generator Protection with Sequential Trip.
  • Application Note: PC-INTERTIE (1.1MB)
    Preprogrammed Logic: Intertie Protection.
  • Application Note: PC-LZGENPROT (1.2MB)
    Preprogrammed Logic: Low Impedance Grounded Generator Protection with Sequential Trip.
  • Application Note: PC-LZGENSYNC (1.2MB)
    Preprogrammed Logic: Low Impedance Grounded Generator Protection with Sequential Trip and Sync-Check.
  • Application Note: PC-OLS (529.8KB)
    Implement Any Logic Scheme Confidently with our Offline Logic Simulator.
  • Application Note: PC-PRIMARYBUS (1.1MB)
    Preprogrammed Logic: Primary Bus Overcurrent Protection.
  • Application Note: PC-RECLOSER (727.8KB)
    Basler digital relays offer better coordination for recloser.
  • Application Note: PC-RECLOSING (1.1MB)
    Preprogrammed Logic: Overcurrent Protection with Reclosing.

Case Studies

• Case Study

  • One Good DECS Deserves Another (616.8KB)
    Throughout Taiwan’s history, many government-owned power plants were built to supply power for the main island of Taiwan and its outlying islands. Basler excitation systems and protective relays are widely used in these plants.