1. Manuals
  2. Brands
  3. Basler Manuals
  4. Relays
  5. BE1-67N
  6. Instruction manual

Basler BE1-67N Instruction Manual

Ground directional overcurrent relay
Hide thumbs Also See for BE1-67N:
Table of Contents

Advertisement

Quick Links

Download this manual
INSTRUCTION MANUAL
FOR
BE1-67N
GROUND DIRECTIONAL OVERCURRENT RELAY
Publication: 9 1907 00 990
Revision: B

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the BE1-67N and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Basler BE1-67N

Summary of Contents for Basler BE1-67N

  • Page 1 INSTRUCTION MANUAL BE1-67N GROUND DIRECTIONAL OVERCURRENT RELAY Publication: 9 1907 00 990 Revision: B...
  • Page 2 INTRODUCTION This manual provides information concerning the operation and installation of the BE1-67N Ground Directional Overcurrent Relay. To accomplish this, the following is provided. Specifications Functional description Mounting information Setting procedure/example. A Service Manual, publication 9 1907 00 620, is available on special order as an aid in troubleshooting and repair.
  • Page 3 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. It is not the intention of this manual to cover all details and variations in equipment, nor does this manual provide data for every possible contingency regarding installation or operation.

  • Page 4: Table Of Contents

    CONTENTS Section 1 GENERAL INFORMATION Purpose ......... . 1-1 Applications .
  • Page 5 CONTENTS - Continued Section 4 INSTALLATION - Continued Time Overcurrent Pickup Test ..... . 4-6 Instantaneous Overcurrent Pickup Test (Non-directional . . 4-7 Instantaneous Overcurrent Pickup Test (Directional) .

  • Page 6: General Information

    GENERAL INFORMATION PURPOSE BE1-67N Ground Directional Overcurrent Relays provide ground fault protection for transmission and distribution lines by sensing the flow of ground (zero sequence) current into or out of protected zones. Zero sequence quantities provide a secure reference for the directional element because these quantities are defined by the total source impedance of the power system.
  • Page 7 BE1-67N General Information Figure 1-1. Zero Sequence Polarizing (Two Winding Transformer)

  • Page 8: Output Contacts

    BE1-67N General Information (KIWTG<GTQ5GSWGPEG2QNCTK\KPI 6JTGG9KPFKPI6TCPUHQTOGT OUTPUT CONTACTS BE1-67N relays have the following output contacts: relay status alarm (relay fail), tripping, and auxiliary (optional). Relay Status Alarm A relay status alarm output contact (relay fail) indicates that proper voltages are not being supplied to the internal relay circuitry or that the microprocessor self-diagnostics has detected an error.

  • Page 9: Push-To-Energize

    POWER SUPPLY OPTIONS Various power supply options are available to allow the BE1-67N relay to be used with standard supply voltages. See the Style Chart for details. POWER-UP DELAY A power-up delay timer is initiated upon application of control power to the relay to prevent undesired contact transitions when sensing signals are present.

  • Page 10: Specifications

    BE1-67N General Information (KIWTG5V[NG0WODGT+FGPVKHKECVKQP%JCTV SPECIFICATIONS Current Sensing (I Inputs Pickup adjustment range is: 0.25 - 6.0 amperes for sensing input ranges 1 and 2. 0.05 - 1.2 amperes for sensing input ranges 3 and 4. Refer to Table 1-1 for maximum current carrying capacities.
  • Page 11 BE1-67N General Information Burden Burden is less than 0.1 ohm. Frequency The relay is designed to operate on power systems with a nominal frequency of either 50 or 60 hertz. The relay has been type-tested for proper operation over the frequency range of 45 to 55 hertz for 50 hertz systems and 55 to 65 hertz for 60 hertz systems.
  • Page 12 BE1-67N General Information 0.25 to 6 amperes for sensing input ranges 1 and 2. 0.05 to 1.2 amperes for sensing input ranges 3 and 4. Time Overcurrent - Continued Pickup Accuracy Within ± 2% of the expected value established by TAP selector switch with the intertap adjustment at its maximum clockwise setting.
  • Page 13 BE1-67N General Information Table 1-3. Power Supplies Nominal Input Burden at Type Input Voltage Voltage Range Nominal (Maximum) 48 Vdc 24 to 60 Vdc 6.5 W 125 Vdc 62 to 150 Vdc 10.0 W 120 Vac 90 to 132 Vac 20.0 VA...

  • Page 14: Characteristic Curves

    -- i.e., 99-0932 -- is provided with each graph. Use this drawing number to order a full-size (10 inch by 12 inch) chart from Basler Electric Company. Table 1-3 lists the characteristic curve style, drawing number, and characteristic description for each position of the characteristic curve selector switch.
  • Page 15 BE1-67N General Information (KIWTG6KOKPI6[RG$5JQTV+PXGTUG &TCYKPI0WODGT 1-10...
  • Page 16 BE1-67N General Information (KIWTG6KOKPI6[RG$.QPI+PXGTUG &TCYKPI0WODGT 1-11...
  • Page 17 BE1-67N General Information (KIWTG6KOKPI6[RG$&GHKPKVG6KOG &TCYKPI0WODGT 1-12...
  • Page 18 BE1-67N General Information (KIWTG6KOKPI6[RG$/QFGTCVG+PXGTUG &TCYKPI0WODGT 1-13...
  • Page 19 BE1-67N General Information (KIWTG6KOKPI6[RG$+PXGTUG &TCYKPI0WODGT 1-14...
  • Page 20 BE1-67N General Information (KIWTG6KOKPI6[RG$8GT[+PXGTUG &TCYKPI0WODGT 1-15...
  • Page 21 BE1-67N General Information (KIWTG6KOKPI6[RG$'ZVTGOGN[+PXGTUG &TCYKPI0WODGT 1-16...
  • Page 22 BE1-67N General Information (KIWTG6KOKPI6[RG'$5.QPI+PXGTUG &TCYKPI0WODGT 1-17...
  • Page 23 BE1-67N General Information (KIWTG6KOKPI6[RG'$5+PXGTUG &TCYKPI0WODGT 1-18...
  • Page 24 BE1-67N General Information (KIWTG6KOKPI6[RG'$5+PXGTUG &TCYKPI0WODGT 1-19...
  • Page 25 BE1-67N General Information (KIWTG6KOKPI6[RG'$58GT[+PXGTUG &TCYKPI0WODGT 1-20...
  • Page 26 BE1-67N General Information (KIWTG6KOKPI6[RG'$5'ZVTGOGN[+PXGTUG &TCYKPI0WODGT 1-21...

  • Page 27: Controls And Indicators

    SECTION 2 CONTROLS AND INDICATORS Table 2-1. BE1-67N Controls and Indicators (Refer to Figures 2-1 through 2-3) Locator Control or Indicator Function DIR INST. Control Multiturn potentiometer (continuous turns, no stops) allows screwdriver adjustment of the directional instantaneous overcurrent element.
  • Page 28 BE1-67N Controls and Indicators Figure 2-1. Location of Controls and Indicators...
  • Page 29 BE1-67N Controls and Indicators Figure 2-2. Locations of Controls and Indicators...
  • Page 30 BE1-67N Controls and Indicators Figure 2-3. Location of Controls and Indicators...
  • Page 31 BE1-67N Controls and Indicators Table 2-1. BE1-67N Controls and Indicators - Continued Locator Control or Indicator Function TAP CAL Control Multiturn potentiometer (continuous turns, no stops) allows screwdriver adjustment to the pickup level for the time overcurrent function. When this control is in the full clockwise position, the setting of the time overcurrent element is within +/- 5% of the selected tap setting.

  • Page 32: General

    SECTION 3 (70%6+10#.&'5%4+26+10 GENERAL BE1-67N Ground Directional Overcurrent Relays are microprocessor based time ground overcurrent relays with directional supervision. FUNCTIONAL DESCRIPTION The following paragraphs describe the relay circuit functions illustrated in Figure 3-1. Figure 3-1. Functional Block Diagram Current Sensing Internal current sensing transformers receive inputs from the 5 amperes (or optional 1 ampere) nominal secondary of standard transformers.

  • Page 33: Voltage Sensing

    BE1-67N Functional Description tapped so that the relay range is determined by its external connections. External connections are listed in Table 3-1. Outputs from the sensing input transformers are applied to a scaling circuit that converts each of the input currents to a dc voltage level. Scaling is controlled by the TAP selector switch and the TAP CAL control on the front of the relay.
  • Page 34 BE1-67N Functional Description A directional unit determines when the monitored power system quantities have the proper phase relationship for tripping. This unit has the following three types of directional capabilities that are selectable by a circuit board switch. One, zero sequence current polarization. Two, zero sequence voltage polarization.
  • Page 35 BE1-67N Functional Description must be 4 volts or more. Figure 3-3 shows the phase relationship between the sensed measured current I and the zero sequence voltage (V Figure 3-3. Zero Sequence Voltage Polarizing Phase Relationship (0  Characteristic Angle) The characteristic angle is front panel selectable for a line impedance angle of 0 or 60. This is the angle between V and the directional characteristic.

  • Page 36: Overcurrent Elements

    Extremely Inverse Instantaneous Overcurrent Elements BE1-67N relays may be optionally supplied with one or two instantaneous elements (one supervised by the directional unit). Instantaneous units are supplied from a separately obtained input signal, to permit a setting independent of the time overcurrent unit. Maximum operating times are as follows:...

  • Page 37: Power Supply

    Damage will result to the power supply and the relay if J4 link (jumper) is not properly installed. Figure 3-5. Power Supply Type Y Link Position Output Contacts BE1-67N relays have the following output contacts:  Relay status alarm (relay fail) output contact  Tripping output contacts  Auxiliary output contacts (optional)

  • Page 38: Push-To-Energize Output Switches

    An auxiliary contact can be configured (via internal switches) to operate in parallel with any combination of tripping outputs. Configurable auxiliary outputs permit use of the BE1-67N relay in various carrier schemes.

  • Page 39: Installation

    If there is evidence of damage, immediately file a claim with the carrier and notify the Regional Sales Office, or contact the Sales Representative at Basler Electric, Highland, Illinois. In the event the relay is not to be installed immediately, store the relay in its original shipping carton in a moisture and dust free environment.

  • Page 40: Connections

    BE1-67N Installation Connections should be made with minimum wire size of 14 AWG except as noted for the ground wire. Typical sensing input connections are shown in Figures 4-1 and 4-2. Typical external connections are shown in Figure 4-3. Internal connections are shown in Figure 4-4.

  • Page 41: Sensing Input Connections (Three Winding Transformer)

    BE1-67N Installation Figure 4-2. Typical Sensing Input Connections (Three Winding Transformer)

  • Page 42: Typical Output Connections

    BE1-67N Installation Figure 4-3. Typical Output Connections...

  • Page 43: Typical Internal Connections

    BE1-67N Installation Figure 4-4. Typical Internal Connections...

  • Page 44: Operational Test Procedure (Sensing Input Ranges 1 And 2)

    BE1-67N Installation OPERATIONAL TEST PROCEDURE (Sensing Input Ranges 1 and 2) Preliminary Test Setup NOTE Confirm that the TEST/NORMAL switch (callout O of Figure 2-2) is in the NORMAL position. Step 1. Connect the circuit as shown in Figure 4-5.

  • Page 45: Instantaneous Overcurrent Pickup Test

    BE1-67N Installation current level is within ± 5% of value given in Table 4-1. NOTE TAP switch position can be changed without disconnecting current sensing inputs. Table 4-1. Pickup Values for TAP Selector Positions TAP Selector Position Range High 1.125 1.500...

  • Page 46: Instantaneous Overcurrent Pickup Test (Directional)

    BE1-67N Installation Step 3. Apply (I ) input current of 2.0 A. Step 4. Adjust NON-DIR. INST control CCW slowly until the non-directional instantaneous relay activates (contacts 14 and 15 transfer). Step 5. Adjust polarizing voltage source (V ) for 4.0 Vac at 90 phase angle. Relay should stay tripped.

  • Page 47: I O Directional Verification

    BE1-67N Installation Step 5. Vary the phase angle of V input through 360 and record phase angles with which the DIR. TIMING INHIBIT LED is extinguished. When shown on a polar plot, the result should be a V- shaped line (through the origin) from -15 to +135±5. This plot defines the trip region as shown in Figure 4-7.
  • Page 48 BE1-67N Installation as Polarizing Source (CHAR. ANGLE = 60  ) Figure 4-7. Trip Zone Using V as Polarizing Source (CHAR. ANGLE = 0  ) Figure 4-8. Trip Zone Using I 4-10...

  • Page 49: Operational Test Procedure (Sensing Input Ranges 3 And 4)

    BE1-67N Installation OPERATIONAL TEST PROCEDURE (Sensing Input Ranges 3 and 4) Preliminary Test Setup NOTE Confirm that the TEST/NORMAL switch (callout O of Figure 2-2) is in the NORMAL position. Step 1. Connect the circuit as shown in Figure 4-5.

  • Page 50: Instantaneous Overcurrent Pickup Test

    BE1-67N Installation NOTE TAP switch position can be changed without disconnecting current sensing inputs. Table 4-3. Pickup Values for TAP Selector Positions TAP Selector Position Range High 0.225 0.300 0.450 0.525 0.675 0.750 0.900 0.975 1.125 1.200 0.075 0.100 0.150 0.175...

  • Page 51: O Directional Verification

    BE1-67N Installation Directional Verification For the following tests, it will be necessary to adjust and monitor the magnitude of voltage(s) and current(s) as well as phase angle relationship between sensing quantities. Record the results on polar graph paper to understand the significance of the results. Blank forms are furnished in this section.

  • Page 52: Timing Curve Verification (Sensing Input Ranges 3 And 4)

    BE1-67N Installation Table 4-4. Expected Timing at Five Times Pickup Expected Times at Indicated Time Dial Setting * Timing Selector (in seconds) Type Option 0.066 0.194 0.587 3.410 0.103 0.494 0.168 0.875 0.149 0.722 0.126 0.551 0.195 1.011 0.329 1.790 1.560...
  • Page 53 BE1-67N Installation Step 1. Set TAP select switch to position A and rotate TAP CAL control fully CW. Rotate both instantaneous control fully CW. Set TIME DIAL to 00. Step 2. Adjust I source current for 0.375 A (low range) or 1.125 A (high range) and apply this current to the sensing input(s).

  • Page 54: Blank Graph Forms

    BE1-67N Installation Figure 4-9. Blank Graph Form Figure 4-10. Blank Graph Form 4-16...

  • Page 55: Outline Dimensions, Front View

    BE1-67N Installation Figure 4-11. Outline Dimensions, Front View 4-17...

  • Page 56: Outline Dimensions, Rear View

    BE1-67N Installation Figure 4-12. Outline Dimensions, Rear View 4-18...

  • Page 57: Outline Dimensions, Side View - Semi-Flush Mounting

    BE1-67N Installation Figure 4-13. Outline Dimensions, Side View — Semi-Flush Mounting 4-19...

  • Page 58: Outline Dimensions, Side View - Projection Mounting

    BE1-67N Installation Figure 4-14. Outline Dimensions, Side View — Projection Mounting 4-20...

  • Page 59: Panel Drilling Diagram - Semi-Flush Mounting

    BE1-67N Installation Figure 4-15. Panel Drilling Diagram — Semi-Flush Mounting 4-21...

  • Page 60: Panel Drilling Diagram - Projection Mounting

    BE1-67N Installation Figure 4-16. Panel Drilling Diagram — Projection Mounting 4-22...

  • Page 61: Maintenance

    Service Manual (publication number 9 1907 00 620). If factory repair is desired, contact the Customer Service Department of the Power Systems Group, Basler Electric, for a return authorization number prior to shipping.

  • Page 62: Manual Change Information

    SECTION 6 MANUAL CHANGE INFORMATION Substantive changes in this manual to date are summarized below. Revision Summary of Changes Changed Figures 3-1 through 3-3 and added new Figure 3-4. Renumbered old Figure 3-4 to 3-5. Added Section 6 Manual Change Information. Changed all sections of the manual to reflect revised specifications.

Table of Contents