Basler BE1-40Q Instruction Manual
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Basler BE1-40Q Instruction Manual

Loss of excitation relay
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INSTRUCTION MANUAL
FOR
LOSS OF EXCITATION RELAY
BE1-40Q
Publication Number:
9 1715 00 990
Revision:
K
02/01

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Summary of Contents for Basler BE1-40Q

  • Page 1 INSTRUCTION MANUAL LOSS OF EXCITATION RELAY BE1-40Q Publication Number: 9 1715 00 990 Revision: 02/01...

  • Page 2: Section 4 Installation

    INTRODUCTION This Instruction Manual provides information concerning the operation and installation of BE1-40Q Loss of Excitation Relays. To accomplish this, the following is provided.  Specifications  Functional characteristics  Installation  Operational Tests  Mounting Information WARNING To avoid personal injury or equipment damage, only qualified personnel should perform the procedures presented in this manual.
  • Page 3 February 2001 CONFIDENTIAL INFORMATION OF BASLER ELECTRIC COMPANY, HIGHLAND, IL. 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 COMPANY.

  • Page 4: Table Of Contents

    Timing Verification ......... . . 5-4 Relay Characteristics Verification ....... 5-4 BE1-40Q Introduction...
  • Page 5 Changes ........... . . 7-1 BE1-40Q Introduction...

  • Page 6: 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 7: Time Delay

    Figure 1-3. An Example of BE1-40Q Relay Operating Characteristics Time Delay A time delay is included in BE1-40Q Relays to prevent misoperation for transient conditions such as power swings due to synchronizing or external fault clearing. A definite time delay of 0.1 to 9.9 seconds can be set on the front panel thumbwheels in increments of 0.1 second.

  • Page 8: Style Number Identification Chart

    Style number identification chart (Figure 1-4) defines the electrical characteristics and operational features included in BE1-40Q relays. For example, if the style number were F3E E10 B1S2F, the device would have the following: 60 Hz single-phase current sensing.

  • Page 9: Specifications

    250 Vdc Make 30 A for 0.2 seconds, carry 7 A continuously, and break 0.3 A. Inductive: 120/240 Vac, Make 30 A for 0.2 seconds, carry 7 A continuously, and break 0.3 A. 125/250 Vdc (L/R = 0.04). BE1-40Q General Information...
  • Page 10 5.2 W 240 Vac 90 to 270 Vac 14.0 VA NOTE: † Type R power supply initially requires 14 Vdc to begin operating. Once operating, the voltage may be reduced to 12 Vdc and operation will continue. BE1-40Q General Information...
  • Page 11 Capability (SWC) Tests for Protective Relays and Relay Systems. Operating Temperature -40°C (-40°F) to +70°C (+158°F). Storage Temperature -65°C (-85°F) to +100°C (+212°F). Weight 13.5 pounds (6.12 kg) maximum. Case Size S1. (Dimensions are provided in Section 4, Installation .) BE1-40Q General Information...

  • Page 12: Section 2 • Human-Machine Interface

    SECTION 2 • HUMAN-MACHINE INTERFACE CONTROLS AND INDICATORS Table 2-1 lists and briefly describes the operator controls and indicators of the BE1-40Q Overexcitation Relay. Reference the call-out letters to Figure 2-1. Table 2-1. Controls and Indicators Letter Control or Indicator...
  • Page 13 Figure 2-1. Location of Controls and Indicators BE1-40Q Human-Machine Interface...

  • Page 14: Section 3 • Functional Description

    SECTION 3 • FUNCTIONAL DESCRIPTION GENERAL 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.

  • Page 15: 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 sensing current is present. The effect of this switch, in conjunction with the TAP switch, is shown in the BE1-40Q Functional Description...

  • Page 16: Tap Switch

    A small pushbutton switch may be provided as an option to allow testing the primary output contact and (if present) the auxiliary output contact. To prevent accidental operation, the pushbutton is recessed behind the front panel and is depressed by inserting a thin, non-conducting rod through an access hole in the front panel. BE1-40Q Functional Description...

  • Page 17: Power Supply

    A shorting bar is included in the relay case so that the status output terminals can provide a remote indication that the BE1-40Q Relay has been withdrawn from its case or taken out of service by removing the connection plug.

  • Page 18: Installation

    Regional Sales Office, or contact the Sales Representative at Basler Electric, Highland, Illinois. In the event the BE1-40Q Relay is not to be installed immediately, store it in the original shipping carton in a moisture and dust free environment. See Section 5 for further information. When the relay is to be placed in service, it is recommended that the Operational Test Procedure (Section 5) be performed prior to installation.
  • Page 19 D1427-01 2-02-01 Figure 4-1. S1 Case, Outline Dimensions, Front View BE1-40Q Installation...
  • Page 20 D1427-29 02/2001 Figure 4-2. S1 Case, Single-Ended, Semi-Flush Mounting, Outline Dimensions, Side View DETAIL A-A OVER THE BOSS TO TIGHTEN THE D1427-03 02/2001 Figure 4-3. S1 Case, Single-Ended, Projection Mounting, Outline Dimensions, Side View BE1-40Q Installation...
  • Page 21 D1427-27 02/2001 Figure 4-4. S1 Case, Double-Ended, Semi-Flush Mounting, Outline Dimensions, Side View DETAIL A-A OVER THE BOSS TO TIGHTEN THE D1427-03 02/2001 Figure 4-5. S1 Case, Double-Ended, Projection Mounting, Outline Dimensions, Side View BE1-40Q Installation...
  • Page 22 Figure 4-6. S1 Case, Outline Dimensions, Rear View BE1-40Q Installation...
  • Page 23 Figure 4-7. S1 Case, Panel Drilling Diagram, Semi-Flush Mounting Figure 4-8. S1 Case, Single-Ended, Panel Drilling Diagram, Rear View (Projection Mounting) BE1-40Q Installation...

  • Page 24: Connections

    2 plugs for 20 terminal cases). Removal of the connection plug(s) opens the normally open trip contact circuits and shorts the normally closed trip contact circuits before opening the power and sensing circuits. The CT inputs are shorted when the plug(s) are removed. BE1-40Q Installation...
  • Page 25 Figure 4-10. Sensing Input Connections Figure 4-11. Output Connections BE1-40Q Installation...
  • Page 26 Figure 4-12. Interconnection With Current Operated Targets Figure 4-13. Interconnection With Current Operated Targets and Power Supply Status Output BE1-40Q Installation...
  • Page 27 Figure 4-14. Interconnection With Internally Operated Target and Auxiliary Output Contacts (SPDT) 4-10 BE1-40Q Installation...

  • Page 28: Section 5 • Setting And Testing

    Figure 5-1. An Example of BE1-40Q Relay Operating Characteristics The pickup setting is determined by the point where the BE1-40Q characteristic intersects the Q axis in per unit (pu) quantities. Therefore, for the example shown in Figure 5-1, the pickup is -0.4 pu. The actual per unit pickup setting for your relay is determined by your specific application.

  • Page 29: Operational Test Procedure

    Low Range, TAP position E (Table 1 1) OPERATIONAL TEST PROCEDURE BE1-40Q Loss of Excitation Relays operation and calibration can be verified by the following operational test procedure. Test results obtained from this procedure may not fall within specified tolerances because of inaccuracies in test equipment.
  • Page 30 Slowly increase the magnitude of the current source until the PICKUP LED lights. On units with target indicators, the indicator should operate. NOTE Equation 4.5 applies only to Step 8 of the Pickup Verification Test Procedure. For the pickup response of the BE1-40Q Relay, see Equation 3.1. BE1-40Q Setting and Testing...

  • Page 31: Timing Verification

    Step 6, to the change of state of the output relay. If a normally open contact has been selected, a trip will occur when the contact closes; normally closed contacts will open to trip. Step 3. Make the following front panel adjustments on the BE1-40Q Relay: RANGE Switch - LOW position TAP Switch - Position A (minimum) TIME DELAY Switches - 10 (1.0 second)
  • Page 32 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). Step 4.
  • Page 33 Graph Example Given: Relay style number is BE1-40Q F3E E1P B1S1F. (Reference the Style Number Identification Chart, Figure 1-4.) Pickup is set to 125. (Reference Table 1-1.) Test results are obtained as given in Step 1. For this example, we are using the data shown in columns [1] and [2] of Table 5-4, below.
  • Page 34 66.75 -115.62 1.827 43.28 -118.92 1.788 21.51 -121.98 1.804 0.00 -125.00 +100 -100 1.879 -22.60 -128.18 +110 -110 2.024 -47.95 -131.74 +120 -120 2.267 -78.54 -136.04 Figure 5-3. BE1-40Q Relay Characteristics Plotted on Complex Power Plane BE1-40Q Setting and Testing...
  • Page 35 Figure 5-4. Blank Graph BE1-40Q Setting and Testing...

  • Page 36: Section 6 Maintenance

    TEST PLUG Test plugs (Basler part number 10095 or G.E. part number XLA12A1) provide a quick, easy method of testing relays without removing them from their case. Test plugs are simply substituted for the connection plugs.

  • Page 37: Section 7 Manual Change Information

    Installation, Dielectric Test , to reflect specification changes. Corrected Figure 4-1 and changed Figure 5-2, note 2. Corrected typographical error in Table 5-4, Reactive Power (Vars), +120. Corrected typographical error in Section 6, Maintenance, General. 14962 03-01-95 BE1-40Q Manual Change Information...
  • Page 38 Updated Style Number Identification Chart by changing Power Supply Type T from “230 Vac” to “240 Vac.” Added new power supply information to Specifications and Section 3 starting with “Basler Electric enhanced the power supply design...” Changed the format of the manual. 1033...

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