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Basler BE1-50/51M-222, Инструкция по эксплуатации

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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

BE1-50/51M-222 Overcurrent Relays require no preventive maintenance.  However, periodic checks
should be performed according to scheduled practices.  A recommended periodic test is provided in this
Section.  If the relay fails to function properly and 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 should be performed by qualified technicians. 

Replacement parts may be purchased locally.  The quality of replacement parts must be at least equal
to that of the original components.  These parts may be ordered directly from Basler Electric.    Where
special components are involved, contact the Customer Service Department of the Power Systems
Group, Basler Electric.  When complete boards or assemblies are needed, the following information is
required.

1. Relay model number

2. Relay serial number

STORAGE

This protective relay contains long life aluminum electrolytic capacitors.  Life in excess of 20 years may
be expected if the storage temperature does not exceed 40

C (72

F).

PERIODIC TESTS

General

All relays should be tested periodically to identify and correct any problems that are found.

Single phase relays such as the BE1-50/51M-222 are normally used in groups of four (three phase and
ground) on the protected circuit.  Only three are required at any one time to provide complete protection.
The fourth one assures that protection is maintained even if one relay failed.

This protection scheme also allows one unit at a time to be withdrawn from service for testing purposes
without losing protection during the test.  Refer to Section 5 for recommended test setups.

Содержание BE1-50/51M-222

Страница 1: ... T N E U N I T S 0 5 MIN SET PICKUP DIAL PICKUP MANUAL TRIP TIME MANUAL TRIP PICKUP 0 0 0 0 0 Highland Illinois Basler Electric R S 0 CURVE INST TIME RESET D2644 12 08 18 97 INSTRUCTION MANUAL FOR OVERCURRENT RELAY BE1 50 51M 222 Publication Number 9 2520 00 984 Revision A 12 99 ...

Страница 2: ...rm the procedures presented in this manual INTRODUCTION This manual provides information concerning the operation and installation of the BE1 50 51M 222 Overcurrent Relay To accomplish this the following is provided Specifications Functional description Mounting information Setting procedure example ...

Страница 3: ... Basler Electric Co Highland IL 62249 December 1999 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 The availability and design of all features and options are subject to modification without notice Should further information be required contact Basler Electr...

Страница 4: ...essor 3 1 Power Off Sensing 3 2 Outputs 3 2 SECTION 4 INSTALLATION 4 1 General 4 1 Dielectric Test 4 1 Mounting 4 1 Outline Dimensions 4 2 Panel Drilling Diagram C1 Case 4 3 Connections 4 4 AC Input Connections 4 4 DC Control Connections 4 5 BE1 50 51M 222 Overcurrent Relay Rear View 4 6 SECTION 5 TESTING 5 1 General 5 1 Dielectric Test 5 1 Operational Test Procedure 5 1 Test Equipment Required 5 ...

Страница 5: ...iv CONTENTS Continued SECTION 6 MAINTENANCE 6 1 General 6 1 In House Repair 6 1 Storage 6 1 Periodic Tests 6 1 General 6 1 Periodic Test 6 2 SECTION 7 MANUAL CHANGE INFORMATION 7 1 ...

Страница 6: ...y trip the breaker at the relay front panel Direct reading front panel controls Minimum pickup setting for safety during installation Time characteristics extend to a pickup multiple of 40 Rugged draw out construction with steel case Magnetic latching targets retain indication without power Built in accuracy eliminates internal adjustments Minimum transient overreach Field selectable instantaneous...

Страница 7: ... trip 1 0 hour 1 2 times pickup Time to trip 1 0 hour 1 5 times pickup Time to trip 2 0 minutes 4 0 times pickup Time to trip 0 2 seconds 6 0 times pickup Time to trip 0 2 seconds Settings Position the following switches as designated Switch locations are shown in Section 2 Controls And Indicators Figure 1 2 is a graph showing the timing for the application scenario SW8 1 Select nominal operating ...

Страница 8: ...c Curve SPECIFICATIONS BE1 50 51M 222 Overcurrent Relays have the following features and capabilities Current Sensing Input Continuous current 14 amperes One second current 400 amperes TIME PICKUP Range 0 5 to 15 9 amperes in 0 1 ampere steps Setting the TIME PICKUP to the minimum pickup 0 5 ampere places the relay in the most sensitive state and may be used as a safety setting TIME Dropout Dropou...

Страница 9: ...ces the relay in the most sensitive state and may be used as a safety setting INST Dropout Dropout occurs at 95 of pickup value INST PICKUP Accuracy 2 25 milliamperes at or above 1 0 ampere settings Frequency Response A change of 5 hertz from the nominal 50 60 hertz current causes less than 0 5 change in the current required for pickup INST Transient Response Less than 10 overreach with system tim...

Страница 10: ...round applications is beneficial because it helps to avoid nuisance trips For phase applications the maximum time to trip is 3 5 cycles at a pickup multiple of 1 0 and 1 5 cycles at a pickup multiple of 3 0 The corresponding times for ground applications are 4 5 and 1 75 cycles Figure 1 5 shows the instantaneous characteristic curves for maximum time to trip Additional delays of 0 1 0 2 or 0 3 sec...

Страница 11: ...occur with repeating system faults Closing SW8 4 selects the integrating reset characteristic The integrating reset characteristic simulates the disk reset of electromechanical relays BE1 50 51M 222 relays provide the integrating reset function even when input current falls to zero Integrating reset characteristics are shown in Figure 1 6 Target Indicators Magnetically latched manually reset targe...

Страница 12: ...res for 0 2 seconds carry 7 amperes for 2 minutes 3 amperes continuously and break 0 3 ampere Inductive 120 240 Vac Make and carry 30 amperes for 0 2 seconds carry 7 amperes for 2 125 250 Vdc minutes 3 amperes continuously and break 0 3 ampere 0 3 amperes L R 0 04 AUX Output Output contacts can be configured in the field using jumpers to select closing on either or timed or instantaneous trip Outp...

Страница 13: ...es centered around 144 megahertz and 440 megahertz with the antenna located six inches from the relay in both horizontal and vertical planes Temperature Operating Range 40 C 40 F to 70 C 158 F Recommended Storage Range 50 C 58 F to 50 C 122 F Shock 15 g in each of three mutually perpendicular planes Vibration 2 g in each of three mutually perpendicular planes swept over the range of 10 to 500 hert...

Страница 14: ...BE1 50 51M 222 General Information 1 9 MULTIPLES OF PICK UP Figure 1 7 Time Characteristic Curve 99 1610 Load Demand Curve ...

Страница 15: ...BE1 50 51M 222 General Information 1 10 MULTIPLES OF PICK UP Figure 1 8 Time Characteristic Curve 99 1370 L Long Inverse ...

Страница 16: ...BE1 50 51M 222 General Information 1 11 MULTIPLES OF PICK UP Figure 1 9 Time Characteristic Curve 99 1371 D Definite Time ...

Страница 17: ...BE1 50 51M 222 General Information 1 12 MULTIPLES OF PICK UP Figure 1 10 Time Characteristic Curve 99 1372 M Moderately Inverse ...

Страница 18: ...BE1 50 51M 222 General Information 1 13 MULTIPLES OF PICK UP Figure 1 11 Time Characteristic Curve I Inverse ...

Страница 19: ...BE1 50 51M 222 General Information 1 14 MULTIPLES OF PICK UP Figure 1 12 Time Characteristic Curve 99 1374 V Very Inverse ...

Страница 20: ...BE1 50 51M 222 General Information 1 15 MULTIPLES OF PICK UP Figure 1 13 Time Characteristic Curve 99 1375 E Extremely Inverse ...

Страница 21: ...BE1 50 51M 222 General Information 1 16 MULTIPLES OF PICK UP Figure 1 14 Time Characteristic Curve B 99 1376 BS142 B ...

Страница 22: ...BE1 50 51M 222 General Information 1 17 MULTIPLES OF PICK UP Figure 1 15 Time Characteristic Curve 99 1377 BS142 C ...

Страница 23: ... functions or one fixed time function F TIME DIAL Selectors Two selector switches TENS and UNITS to select the desired characteristic curve A setting of 0 0 results in instantaneous operation without any intentional delay A setting of 9 9 corresponds to the typical time provided by an electromechanical relay at its maximum dial setting G TIME MANUAL TRIP Test Points When shorted the test points pr...

Страница 24: ...ing reset characteristic Closing SW8 4 provides integrating reset Opening SW8 4 provides instantaneous reset K Auxiliary Output Jumper Terminations Configures the auxiliary output contacts to close with either the instantaneous 50 trip and or the timed 51 trip Jumper E2 to E1A to close the auxiliary contact with the timed 51 trip This jumper is yellow and factory installed to close the auxiliary o...

Страница 25: ...BE1 50 51M 222 Controls and Indicators 2 3 Figure 2 2 BE1 50 51M 222 Location of Controls and Indicators ...

Страница 26: ...ss the scaling resistors is filtered and applied to the multiplexor MUX Time Signal Current from the signal CT is also rectified and applied to the time scaling resistors controlled by the TIME PICKUP selector switches The analog voltage of the time input signal is also filtered and applied to the multiplexor Microprocessor Operating power from the power supply is applied to the microprocessor sup...

Страница 27: ...e time characteristic curve If the sensed current exceeds the INST PICKUP setting the INST contacts 50 are closed Power Off Sensing The power off sensing circuits measure the decaying voltage to determine the length of time that power is removed zero current This provides information for the integrating reset function even when power has been entirely removed Outputs Instantaneous And Timed System...

Страница 28: ...firmed by performing the operational test procedure in Section 5 Testing 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 DIELECTRIC TEST In accordance with IEC 255 5 and IEEE C37 90 1989 one minute dielectric high potential tests may be performed as follows All circuits to ground 2828 Vdc Input to out...

Страница 29: ...BE1 50 51M 222 Installation 4 2 Figure 4 1 Outline Dimensions C1 Case ...

Страница 30: ...BE1 50 51M 222 Installation 4 3 Figure 4 2 Panel Drilling Diagram C1 Case ...

Страница 31: ...el and part number before connecting and energizing a particular relay Connections should be made with minimum wire size of 14 AWG except as noted for the ground wire Typical ac input and dc control connections are shown in Figures 4 3 and 4 4 The auxiliary output jumper configuration schematic diagram is also shown in Figure 4 4 Relay internal connections are shown on the back of the relay Figure...

Страница 32: ...BE1 50 51M 222 Installation 4 5 Figure 4 4 DC Control Connections ...

Страница 33: ...BE1 50 51M 222 Installation 4 6 Figure 4 5 BE1 50 51M 222 Overcurrent Relay Rear View ...

Страница 34: ...onal test procedures in this Section 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 DIELECTRIC TEST In accordance with IEC 255 5 and IEEE C37 90 1989 one minute dielectric high potential tests may be performed as follows All circuits to ground 2828 Vdc Input to output circuits 2000 Vac or 2828 Vdc Ou...

Страница 35: ... BE1 50 51M 9 8 7 6 5 4 2 TIME INST 3 CURRENT SOURCE INPUT STOP TIMER START AMPS TEST SET 12 08 99 D2750 21 vsd 1 0A CURRENT LIMITER TARGET CURRENT Figure 5 1 Pickup and Timing Test Setup Figure 5 2 Target Operational Test Setup ...

Страница 36: ...nput current of 0 550 ampere Step 2 Decrease input current until PICKUP LED turns OFF Step 3 Set TIME PICKUP to 2 2 Step 4 Slowly increase current to terminals 8 and 9 PICKUP LED should turn ON at an input current of 2 131 to 2 269 amperes Step 5 Decrease input current until PICKUP LED turns OFF INST Pickup Test Perform preliminary setup Connect test setup as shown in Figure 5 1 Insure that SW8 sw...

Страница 37: ... from when current is applied until TIME output contacts close Step 2 Apply the current step from 0 to 1 5 amperes and record the elapsed time Elapsed time should be 72 49 to 99 38 seconds This tolerance is greater than 2 because it is the accumulation of both pickup and timing tolerances Step 3 Remove input current Target Test Perform preliminary setup Connect test setup as shown in Figure 5 2 In...

Страница 38: ...E MANUAL TRIP test points Check that TIME target operates Step 4 Connect a jumper between INST MANUAL TRIP test points Check that INST target operates Step 5 Reset targets Integrating Reset Test Perform preliminary setup Insure that SW8 switches are set correctly SW8 1 for operating frequency SW8 2 to OFF no instantaneous delay SW8 3 to OFF no instantaneous delay and SW8 4 to ON selects integratin...

Страница 39: ...eriodic testing should consist of the following procedures Step 1 Verify that the instantaneous pickup is within 2 of the value set on the dials Pickup occurs when the INST output contacts close Step 2 Verify that the time pickup is within 2 of the value set on the dials Pickup occurs when the LED turns ON Step 3 Verify that the time to trip for the curve and time dial settings at a multiple of si...

Страница 40: ...se parts may be ordered directly from Basler Electric Where special components are involved contact the Customer Service Department of the Power Systems Group Basler Electric When complete boards or assemblies are needed the following information is required 1 Relay model number 2 Relay serial number STORAGE This protective relay contains long life aluminum electrolytic capacitors Life in excess o...

Страница 41: ...ngs at a multiple of six is the same as the time given on the characteristic curve Refer to Section 1 for the characteristics curves Step 4 Verify that the time to trip for the instantaneous element at a pickup multiple of 2 is not greater than the time given on the instantaneous characteristic curve Refer to Section 1 for the instantaneous characteristic curve Step 5 Verify that the 51 AUX contac...

Страница 42: ...cerning the previous editions of the manual The substantive changes to date are summarized in the Table 7 1 Table 7 1 Changes Revision Summary of Changes ECO Date A Changed all references to the current for testing the targets to an ac only type of current Added Section 7 Manual Change Information 7480 12 20 99 ...

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