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Basler BE1-67, Инструкция по эксплуатации

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BE1-67

Maintenance

6-1

CAUTION

Substitution of printed circuit boards or individual components does not necessarily mean
the relay will operate properly. Always test the relay before placing it in operation.

SECTION 6  

  MAINTENANCE

GENERAL

The BE1-67, Phase Directional Overcurrent Relay, requires no preventive maintenance other than periodic
tests. (Refer to Section 5 for test procedures.) 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.

IN-HOUSE REPAIR

In-house replacement of individual components may be difficult and should not be attempted unless
appropriate equipment and qualified personnel are available. 

If in-house repair is to be attempted, component values may be obtained from the schematics or the parts list
of the Service Manual. Replacement parts may be purchased locally. The quality of replacement parts must
be at least equal to that of the original components.

Where special components are involved, Basler Electric part numbers may be obtained from the number
stamped on the component or assembly, the schematic or parts list. These parts may be ordered directly from
Basler Electric. When complete boards or assemblies are needed, the following information is required.

1. Relay model and style number

2. Relay serial number

3. Board or assembly

a)  Part number
b)  Serial number
c)  Revision letter

4. The name of the board or assembly

STORAGE

This protective relay contains aluminum electrolytic capacitors which generally have a life expectancy in
excess of 10 years at storage temperatures less than 40 degrees C. Typically, the life expectancy of the
capacitor is cut in half for every 10 degrees C rise in temperature. Storage life can be extended if, at one-year
intervals, power is applied to the relay for a period of thirty minutes.

TEST PLUG

Test plugs (Basler p/n 10095) provide a quick, easy method of testing relays without removing them from the
case. Test plugs are simply substituted for the connection plugs. This provides access to the external stud
connections as well as to the internal circuitry.

Содержание BE1-67

Страница 1: ...INSTRUCTION MANUAL FOR PHASE DIRECTIONAL OVERCURRENT RELAY BE1 67 Publication 9 1709 00 990 Revision G 05 2003...

Страница 2: ...RES PRESENTED IN THIS MANUAL INTRODUCTION This manual provides information concerning the operation and installation of the BE1 67 Phase Directional Overcurrent Relay To accomplish this the following...

Страница 3: ...er Electric Co Highland IL 62249 May 2003 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 regar...

Страница 4: ...age 5 13 added the Basler publication where the B6 Very Inverse drawing can be found Updated the manual style throughout Rev F 11 95 15426 Changed Specifications for Isolation in Section I and Dielect...

Страница 5: ...tio 1 10 Timing Characteristics 1 11 Time Delay Accuracy 1 11 Instantaneous Overcurrent 1 11 Voltage Sensing Inputs 1 12 Voltage Sensing Burden 1 12 Directional Unit 1 12 Sensitivity 1 12 Characterist...

Страница 6: ...uipment Required 5 1 Preliminary Setup 5 1 VERIFICATION TESTING 5 3 Time Overcurrent Pickup Test 5 3 Instantaneous Overcurrent Pickup Test 5 4 Directional Verification 5 4 TIMING CURVE VERIFICATION 5...

Страница 7: ...y the relay will pickup time out and trip The angle of maximum sensitivity for the relay is also adjustable to allow the directional characteristic to be matched to the line and system conditions Figu...

Страница 8: ...with other relays B6 E6 Very Inverse B7 E7 Extremely Inverse If the supply to the protected portion of the system is constant and if the magnitude of the fault current is determined primarily by the l...

Страница 9: ...Infeed Condition During a period of abnormally low system voltage leading power factor current above relay pickup can flow in the non trip direction of a line Probable current sources are outlying cap...

Страница 10: ...of directional overcurrent relays on a group of interconnected distribution substations fed from a common source In this example non directional overcurrent relays 51 are used to protect the lines lea...

Страница 11: ...Two Sources SAMPLE APPLICATION CALCULATIONS In this sample illustrated by Figure 1 7 a three phase 60 hertz BE1 67 relay is used at breaker position A Assumed options for the relay include switch sele...

Страница 12: ...tor represents a margin of safety Analysis Of Fault L In Figure 1 7 assume the following fault L currents IA L 3 000 amperes at an angle of 65 degrees ID L 6 400 amperes at an angle of 60 degrees Base...

Страница 13: ...seen by IA also allows the directional instantaneous unit to be set to trip for high current close in faults Directional Instantaneous Setting 4 600 1 400 0 8 margin 9 2 amperes Figure 1 8 Coordinatio...

Страница 14: ...e MODEL AND STYLE NUMBER Style Number Identification Chart BE1 67 Phase Directional Overcurrent Relay electrical characteristics and operational features are defined by a combination of letters and nu...

Страница 15: ...ts because they confirm that a current signal flowed in the output circuit and resulted in a trip However as the style chart notes current operated targets are only available when a normally open cont...

Страница 16: ...switch and TAP CAL adjustment A TAP RANGE plate is provided on the front panel to define the external connections and the range of adjustment available when the unit is installed in the protection pa...

Страница 17: ...rately Inverse 99 0930 4 B5 Inverse 99 0929 6 B6 Very Inverse 99 0928 7 B7 Extremely Inverse 99 0927 8 E2 Long Inverse BS 142 99 1093 9 E4 Inverse 1 3 Sec BS 142 99 1094 A E5 Inverse 2 9 Sec BS 142 99...

Страница 18: ...nd the sensed quadrature voltage b c The directional element defines a region as shown in Figure 1 11 for which tripping will be allowed The characteristic angle of the relay is defined as the angle b...

Страница 19: ...nge Burden at Nominal K 48 Vdc 24 to 60 Vdc 7 0 W J 125 Vdc 120 Vac 62 to 150 Vdc 90 to 132 Vac 10 0 W 20 0 VA L 24 Vdc 12 to 32 Vdc 7 0 W Y 48 Vdc 125 Vdc 24 to 60 Vdc 62 to 150 Vdc 7 0 W 7 5 W Z 250...

Страница 20: ...04 Isolation In accordance with IEC 255 5 and ANSI IEEE C37 90 one minute dielectric high potential tests as follows All circuits to ground 2 121 Vdc Input to output circuits 1 500 Vac or 2 121 Vdc U...

Страница 21: ...der full size drawings of these characteristic curves contact Customer Service Department of the Power Systems Group Basler Electric and request publication number 9 1907 00 999 This publication conta...

Страница 22: ...1 16 General Information BE1 67 Figure 1 12 Timing Type B1 Short Inverse Drawing Number 99 0932...

Страница 23: ...BE1 67 General Information 1 17 Figure 1 13 Timing Type B2 Long Inverse Drawing Number 99 0931...

Страница 24: ...1 18 General Information BE1 67 Figure 1 14 Timing Type B3 Definite Time Drawing Number 99 0933...

Страница 25: ...BE1 67 General Information 1 19 Figure 1 15 Timing Type B4 Moderate Inverse Drawing Number 99 0930...

Страница 26: ...1 20 General Information BE1 67 Figure 1 16 Timing Type B5 Inverse Drawing Number 99 0929...

Страница 27: ...BE1 67 General Information 1 21 Figure 1 17 Timing Type B6 Very Inverse Drawing Number 99 0928...

Страница 28: ...1 22 General Information BE1 67 Figure 1 18 Timing Type B7 Extremely Inverse Drawing Number 99 0927...

Страница 29: ...BE1 67 General Information 1 23 Figure 1 19 Timing Type E2 BS 142 Long Inverse Drawing Number 99 1093...

Страница 30: ...1 24 General Information BE1 67 Figure 1 20 Timing Type E4 BS 132 Inverse Drawing Number 99 1094...

Страница 31: ...BE1 67 General Information 1 25 Figure 1 21 Timing Type E5 BS 142 Inverse Drawing Number 99 1095...

Страница 32: ...1 26 General Information BE1 67 Figure 1 22 Timing Type E6 BS 142 Very Inverse Drawing Number 99 1096...

Страница 33: ...BE1 67 General Information 1 27 Figure 1 23 Timing Type E7 BS 142 Extremely Inverse Drawing Number 99 1097...

Страница 34: ...ckup of the relay is based on the setting of the TAP selector switch The setting for the time overcurrent function is the value defined by the switch position A to J and the external connections HIGH...

Страница 35: ...2 2 Human Machine Interface BE1 67 Figure 2 1 BE1 67 Three Phase Relay With Characteristic Angle Control Knob...

Страница 36: ...BE1 67 Human Machine Interface 2 3 Figure 2 2 BE1 67 Three Phase Relay With Characteristic Angle and Limited Region Of Operation...

Страница 37: ...is control is in the full clockwise position the setting of the TIME overcurrent element s is within 5 of the selected tap setting As the control is rotated counterclockwise the pickup value of the el...

Страница 38: ...technician to access a series of stored diagnostic routines to validate the calibration of the relay and to test and troubleshoot the device on the bench Table 2 2 Timing Curve Selection Timing Type...

Страница 39: ...2 6 Human Machine Interface BE1 67 Figure 2 3 Location of Assemblies Controls and Indicators...

Страница 40: ...eration of the relay Figure 3 1 Functional Block Diagram INPUT CIRCUITS BE1 67 relays may be configured to sense either a single phase current and a phase to phase voltage or three phase currents and...

Страница 41: ...0 LOW 0 75 1 0 1 5 1 75 2 25 2 5 3 0 3 25 3 75 4 0 The TAP CAL control provides a means of continuous adjustment between a selected setting of the TAP SELECT and the next lower setting When the TAP S...

Страница 42: ...s do not meet the criteria of the directional element an inhibit signal is output This signal illuminates the appropriate PHASE INHIBIT LED on the relay front panel and prevents the operation of the t...

Страница 43: ...monitored by the relay LED s may be used to determine the actual pickup setting of the relay during testing POWER LED s A red LED lights when the relay power supply is functioning This provides a fro...

Страница 44: ...ulfills many of the logic and signal processing functions described in the following paragraphs and performs all of the time overcurrent computations Multiplexor The multiplexor sequentially switches...

Страница 45: ...cified as either an A or a B magnetically latched target indicators are included within the relay Targets are provided for the TIME overcurrent and the optional INST instantaneous overcurrent function...

Страница 46: ...alse tripping when removing connection plugs always remove the lower connection plug first To avoid false tripping when inserting connection plugs always insert the lower connection plug last 3 BE1 67...

Страница 47: ...4 2 Installation BE1 67 Figure 4 1 Outline Dimensions Front View...

Страница 48: ...BE1 67 Installation 4 3 Figure 4 2 Outline Dimensions Rear View...

Страница 49: ...4 4 Installation BE1 67 Figure 4 3 Outline Dimensions Side View Semi Flush Mounting...

Страница 50: ...BE1 67 Installation 4 5 Figure 4 4 Outline Dimensions Side View Projection Mounting...

Страница 51: ...4 6 Installation BE1 67 Figure 4 5 Panel Drilling Diagram Semi Flush Mounting...

Страница 52: ...BE1 67 Installation 4 7 Figure 4 6 Panel Drilling Diagram Projection Mounting...

Страница 53: ...in damage to the relay Be sure to check the model and style number of the relay before connecting and energizing the particular relay Except as noted above connections should be made with minimum wir...

Страница 54: ...BE1 67 Installation 4 9 Figure 4 8 Single Phase AC Connections...

Страница 55: ...4 10 Installation BE1 67 Figure 4 9 Three Phase AC Connections...

Страница 56: ...BE1 67 Installation 4 11 Figure 4 10 BE1 67 Single Phase Internal Connection Diagram...

Страница 57: ...4 12 Installation BE1 67 Figure 4 11 BE1 67 Three Phase Internal Connection Diagram...

Страница 58: ...rrent element c Because the current levels used to verify the operation of the instantaneous overcurrent element may exceed the continuous current rating of the relay it is suggested that the current...

Страница 59: ...t the voltage source to 120 Vac at a phase angle of 0 Adjust the input current source to 1 0 ampere LOW range or 3 0 ampere HIGH range and at a phase angle of 1 Then starting from the maximum CW posit...

Страница 60: ...erforming the preliminary setup adjust the input voltage source for 120 Vac at a phase angle of 0 Step 2 Adjust the input current source for 0 5 ampere LOW range or 1 5 amperes HIGH range at a phase a...

Страница 61: ...d option 1 3 adjust the voltage source to apply 120 Vac at a phase angle of 0 Step 4 Adjust the sensing current level for 0 75 amperes at 90 leading Apply this current to the sensing input s of the re...

Страница 62: ...BE1 67 Testing 5 5 Figure 5 3 Blank Polar Graph Form Figure 5 4 Blank Polar Graph Form...

Страница 63: ...or 3 0 amperes HIGH range at a phase angle of 90 90 leading Result The INHIBIT LED indicator should be extinguished and the appropriate phase timing LED OFF If not the current or voltage connections a...

Страница 64: ...tate the LIMITED REGION OF O P E R A T I O N potentiometer fully CCW Step 8 Vary the phase angle of the input current through 360 and record the phase angles within which the INHIBIT LED is OFF When s...

Страница 65: ...n a 3 phase unit If not current or voltage connections are reversed and should be corrected Step 5 Vary the phase angle of the input current through 360 and record the phase angles at which the INHIBI...

Страница 66: ...a straight line through the origin from a 60 to 120 5 This plot defines the trip region as shown in Figure 5 10 Step 10 A d j u s t t h e C H A R ACTERISTIC ANGLE control to a setting of 75 Step 11 V...

Страница 67: ...hever is greater within the values shown graphically on the published characteristic curves Verification of the timing may be performed at a low current level for convenience Connect the relay as show...

Страница 68: ...controls options 3 1 3 3 3 5 or 3 6 perform the following steps Step 1 Perform the preliminary setup procedures at the beginning of this section Step 2 With the CHARACTERISTIC ANGLE set to minimum app...

Страница 69: ...urve shape Very inverse Time delay setting 0 6 second at 28 5 A Instantaneous overcurrent pickup 39 9 A Line impedance angle 60 Limited range of operation B 45 The relay that has been selected for thi...

Страница 70: ...rotate the TAP CAL control CCW until the TIMING LED lights Time overcurrent pickup is now set for 5 7 amperes and the instantaneous overcurrent pickup is set for 39 9 amperes Step 10 Reduce the sensin...

Страница 71: ...ol CCW from maximum setting until the INHIBIT LED just turns OFF Step 3 Vary the applied current phase angle through 360 and record the angle values at which the appropriate phase INHIBIT LED turns ON...

Страница 72: ...of the original components Where special components are involved Basler Electric part numbers may be obtained from the number stamped on the component or assembly the schematic or parts list These par...

Страница 73: ...y internal circuitry The ten fingers on the red side of the test plug are connected to the outer binding posts red thumb nuts and to the relay case terminals When testing circuits connected to the bot...

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