1. Manuals
  2. Brands
  3. Basler Manuals
  4. Other
  5. BE1-40Q
  6. Instruction manual

Basler BE1-40Q Instruction Manual

Loss of excitation relay
Hide thumbs Also See for BE1-40Q:
Table of Contents

Advertisement

Quick Links

Download this manual
INSTRUCTION MANUAL
FOR
LOSS OF EXCITATION RELAY
BE1-40Q
40Q
P 0050-23
Publication: 9171500990
Revision: M
01/11

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the BE1-40Q and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Basler BE1-40Q

Summary of Contents for Basler BE1-40Q

  • Page 1 INSTRUCTION MANUAL LOSS OF EXCITATION RELAY BE1-40Q P 0050-23 Publication: 9171500990 Revision: M 01/11...
  • Page 3 INTRODUCTION This instruction manual provides information about the operation and installation of the BE1-40Q Loss of Excitation Relay. To accomplish this, the following information is provided:  General Information and Specifications  Controls and Indicators  Functional Description  Installation ...
  • Page 4 January 2011 CONFIDENTIAL INFORMATION of Basler Electric, Highland Illinois, USA. It is loaned for confidential use, subject to return on request, and with the mutual understanding that it will not be used in any manner detrimental to the interest of Basler Electric.
  • Page 5 REVISION HISTORY The following information provides a historical summary of the changes made to the BE1-40Q instruction manual (9171500990). Revisions are listed in reverse chronological order. Manual Revision and Date Change  M, 01/11 Updated equations in Note 1 under Figure 5-2.
  • Page 6 A, 11/88 Figure 3-3 added.  Editing changes made to clarify specifications.  Two articles added to Section 4, entitled, “Setting the Pickup” (page 4-5) and, “Relay Characteristic Verification” page 4-7.  —, 01/86 Initial release BE1-40Q Introduction 9171500990 Rev M...

  • Page 7: Table Of Contents

    SECTION 1 • GENERAL INFORMATION ....................1-1 PURPOSE ............................1-1 APPLICATION ............................ 1-1 Capability Curves ......................... 1-1 BE1-40Q Operating Characteristics ..................... 1-1 Time Delay ............................ 1-1 MODEL AND STYLE NUMBER ......................1-3 Style Number Example ......................... 1-3 SPECIFICATIONS ..........................1-4 Current Sensing ..........................
  • Page 8 SECTION 5 • TESTING ..........................5-1 SETTING ............................. 5-1 Per Unit Conversion Example ...................... 5-1 OPERATIONAL TEST ........................5-2 Introduction ........................... 5-2 Pickup Verification ........................5-2 Timing Verification ........................5-4 Relay Characteristics Verification ....................5-4 BE1-40Q Introduction 9171500990 Rev M...

  • Page 9: Section 1 • General Information

    Under either condition, BE1-40Q Relays will detect the increased vars at the generator terminals as a loss of excitation and trips the generator to prevent loss of synchronism or excessive heating within the generator.
  • Page 10 Figure 1-1. Typical Generator Capability Curve Figure 1-2. Normal Operation with Steady State Stability Limit Figure 1-3. An example of BE1-40Q Relay Operating Characteristics BE1-40Q General Information 9171500990 Rev M...

  • Page 11: Model And Style Number

    BE1-40Q electrical characteristics and operational features are defined by a combination of letters and numbers that make up the style number. Model number BE1-40Q designates the relay as a Basler Electric Loss of Excitation Relay. The model number, together with the style number, describes the options included in a specific device and appears on the front panel, draw-out cradle, and inside the case assembly.

  • Page 12: Specifications

    SPECIFICATIONS BE1-40Q electrical and physical specifications are listed in the following paragraphs. Current Sensing Unit is designed to operate from the secondary of a standard current transformer rated at 5 A, 50 and 60 Hz (based on configuration). Internal current sensing transformers are rated at 10 A continuous, 15 A for 1 minute, and 200 A for 1 second.

  • Page 13: Output Contacts

    240 Vac 90 to 270 Vac 32.1 VA ∗ Type R power supply initially requires 14 Vdc to begin operating. Once operating, the input voltage may be reduced to 12 Vdc and operation will continue. 9171500990 Rev M BE1-40Q General Information...

  • Page 14: Target Indicators

    UL Recognition: UL recognized per Standard 508, File E97033 NOTE: Output contacts are not UL recognized for voltages greater than 250 volts. GOST-R Certification: GOST-R certified per the relevant standards of Gosstandart of Russia. BE1-40Q General Information 9171500990 Rev M...

  • Page 15: Section 2 • Controls And Indicators

    SECTION 2 • CONTROLS AND INDICATORS INTRODUCTION All BE1-40Q controls and indicators are located on the front panel. The controls and indicators are shown in Figure 2-1 and described in Table 2-1. Figure 2-1 illustrates a relay with the maximum number of controls and indicators.
  • Page 16 Time Delay Selectors. Two thumbwheel switches select the trip time delay. The left thumbwheel represents seconds; the right thumbwheel represents tenths of a second. Range Switch. Two-position switch selects the reactive power range (HI or LOW) desired. BE1-40Q Controls and Indicators 9171500990 Rev M...

  • Page 17: Section 3 • Functional Description

    SECTION 3 • FUNCTIONAL DESCRIPTION INTRODUCTION BE1-40Q Loss of Excitation relays are static devices that respond to the relation of voltage to current magnitudes of the monitored circuit. As such, they are sensitive to phase rotation. All connections shown in this manual assume ABC rotation. BE1-40Q relay functions are illustrated in Figure 3-1 and described in the following paragraphs.

  • Page 18: Current Sensing

    The front panel HI/LOW RANGE switch selects which secondary winding of the internal CT is connected to the TAP switch and thus the measurement circuitry. The position of this switch may be changed while BE1-40Q Functional Description 9171500990 Rev M...

  • Page 19: Tap Switch

    The power supply status relay has a set of normally closed contacts and energizes when operating power is applied to the BE1-40Q. If relay operating power is lost or either side of the power supply output (+12 Vdc or –12 Vdc) fails, the power supply status relay de-energizes and opens the power supply status output contacts.

  • Page 20: Target Indicators

    NOTE Prior to September 2007, BE1-40Q the target indicator consisted of a magnetically latched, disc indicator. This mechanically latched target indicator has been replaced by the electronically latched LED target in use today.

  • Page 21: Section 4 • Installation

    SECTION 4 • INSTALLATION INTRODUCTION BE1-40Q relays are shipped in sturdy cartons to prevent damage during transit. Upon receipt of a relay, check the model and style number against the requisition and packing list to see that they agree. Inspect the relay for shipping damage.
  • Page 22 Figure 4-1. Panel Cutting/Drilling, Semi-Flush Case BE1-40Q Installation 9171500990 Rev M...
  • Page 23 Figure 4-2. Panel Cutting/Drilling, Double-Ended Projection-Mount Case 9171500990 Rev M BE1-40Q Installation...
  • Page 24 Figure 4-3. Panel Cutting/Drilling, Single-Ended Projection-Mount Case BE1-40Q Installation 9171500990 Rev M...
  • Page 25 D1427-27 12-04-01 Figure 4-4. Case Dimensions, Side View, Double-Ended Semi-Flush Case 9171500990 Rev M BE1-40Q Installation...
  • Page 26 Figure 4-5. Case Dimensions, Side View, Double-Ended Projection-Mount Case BE1-40Q Installation 9171500990 Rev M...
  • Page 27 D1427-29 02/2001 Figure 4-6. Case Dimensions, Side View, Single-Ended Semi-Flush Case 9171500990 Rev M BE1-40Q Installation...
  • Page 28 DETAIL A-A OVER THE BOSS TO TIGHTEN THE D1427-03 02/2001 Figure 4-7. Case Dimensions, Side View, Single-Ended Projection-Mount Case BE1-40Q Installation 9171500990 Rev M...
  • Page 29 Figure 4-8. Case Dimensions, Rear View, Semi-Flush Case 9171500990 Rev M BE1-40Q Installation...
  • Page 30 Figure 4-9. Case Dimensions, Rear View, Projection-Mount Case 4-10 BE1-40Q Installation 9171500990 Rev M...
  • Page 31 P0002-12 01-31-01 Figure 4-10. Case Cover Dimensions, Front View 9171500990 Rev M BE1-40Q Installation 4-11...

  • Page 32: Connections

    Typical sensing input connections are shown in Figure 4-11. Typical output connections are shown in Figure 4-12. Internal wiring diagrams are shown in Figures 4-13 through 4-15. All connections shown in this manual assume ABC rotation. Figure 4-11. Sensing Input Connections 4-12 BE1-40Q Installation 9171500990 Rev M...
  • Page 33 Figure 4-12. Output Connections Figure 4-13. Interconnection with Current Operated Targets 9171500990 Rev M BE1-40Q Installation 4-13...
  • Page 34 Figure 4-14. Interconnection with Current Operated Targets and Power Supply Status Output 4-14 BE1-40Q Installation 9171500990 Rev M...

  • Page 35: Maintenance

    Figure 4-15. Interconnection with Internally Operated Target and Auxiliary Output Contacts (SPDT) MAINTENANCE BE1-40Q relays require no preventative maintenance other than a periodic operational check. If the relay fails to function properly, contact Technical Sales Support at Basler Electric to coordinate repairs.
  • Page 36 This page intentionally left blank. 4-16 BE1-40Q Installation 9171500990 Rev M...

  • Page 37: Section 5 • Testing

    SECTION 5 • SETTING AND TESTING SETTING Setting the pickup value of BE1-40Q relays is facilitated by using the capability curves supplied by the generator manufacturer as shown previously in the examples in Section 1. The figure for relay operating characteristics is repeated here as Figure 5-1.

  • Page 38: Operational Test

    = (13.33 Mvar)   12800   = 1804 A Step 3. Specify a BE1-40Q relay having a nominal sensing range of 120 V (for a PT ratio of 12800/120). Step 4. Determine the desired secondary current. Primary Current Secondary current...
  • Page 39 NOTE The equation in Step 8 applies only to Step 8 of the Pickup Verification Test Procedure. For the pickup response of the BE1-40Q relay, see Section 3, Functional Description. Step 8. Note the indicated voltage and current, and calculate the actual pickup value as defined by: relay ×...

  • Page 40: Timing Verification

    Connect the test circuit shown in Figure 5-2. Step 2. Adjust the BE1-40Q relay for the desired pickup value as specified by the generator application or the test setup capabilities. Step 3. Adjust the TIME DELAY switches to a minimum value (e.g., 0.1, 0.2, or 0.3 seconds).
  • Page 41 θ θ Where: = voltage measured in the test setup of Figure 5-2 = current measured in the test setup of Figure 5-2 = the (–) angle setting of the current source Ө 9171500990 Rev M BE1-40Q Setting and Testing...
  • Page 42 2.107 93.82 –115.62 –60 1.927 66.75 –118.92 –70 1.827 43.28 –121.98 –80 1.788 21.51 –125.00 –90 1.804 0.00 –22.60 –128.18 +100 –100 1.879 –47.95 –131.74 +110 –110 2.024 –78.54 –136.04 +120 –120 2.267 BE1-40Q Setting and Testing 9171500990 Rev M...
  • Page 43 Figure 5-3. BE1-40Q Relay Characteristics Plotted on Complex Power Plane Figure 5-4. Blank Graph 9171500990 Rev M BE1-40Q Setting and Testing...
  • Page 44 This page intentionally left blank. BE1-40Q Setting and Testing 9171500990 Rev M...

Table of Contents