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1-4

GENERAL INFORMATION

SPECIFICATIONS

Voltage Sensing

Nominally rated at 50/60 Hz, (120/240 V or 100/200 V) with a
maximum continuous voltage rating of 360 V (120 V nominal )
or 480 V (240 V nominal ) at a burden less than 1 VA per
phase. Frequency range is from 40 to 70 Hz.

Power Supply

Type

Nominal Input

Voltage

Input Voltage

Range

Burden at

Nominal

K (Mid Range)

48 Vdc

24 to 150 Vdc

4.4 W

J (Mid Range)

125 Vdc
120 Vac

24 to 150 Vdc
90 to 132 Vac

4.4 W

10.1 VA

†L (Low Range)

24 Vdc

12 to 32 Vdc

4.5 W

Y (Mid Range)

48 Vdc

125 Vdc

24 to 150 Vdc
24 to 150 Vdc

4.4 W
4.4 W

Z (High Range)

250 Vdc
230 Vac

68 to 280 Vdc
90 to 270 Vac

5.5 W

14.0 VA

† Type L power supply may require 14 Vdc to begin operating.
Once operating, the voltage may be reduced to 12 Vdc.

Target Indicators

Magnetically latching, manually reset target indicators are
optionally available to indicate that a trip output contact has
energized. Either internally operated or current operated targets
may be selected. Current operated targets require a minimum of
0.2 Adc flowing through the output trip circuit, and are rated at
30 A for 1 second, 7 A for 2 minutes, and 3 A continuously.
Internally operated targets should be selected if the breaker
control circuit is ac powered, or if the relay has normally closed
output contacts.

Output Contacts:

Resistive

Inductive

Output contacts are rated as follows:
120 Vac - make, break, and carry 7 A continuously. 
250 Vdc - make and carry 30 A for 0.2 seconds, carry 7 A con-
tinuously, break 0.1 A. 
500 Vdc - make and carry 15 A for 0.2 seconds, carry 7 A con-
tinuously, break 0.1 A.

120 Vac, 125 Vdc, 250 Vdc - break 0.1 A (L/R = 0. 04) .

Undervoltage and Overvoltage 
Pickup Range

Continuously adjustable over the range of 1 to 40, 55 to 160, or
110 to 320 Vac as defined by the Style Chart. See Section 3,
System Voltages for explanation of pickup ranges.

Undervoltage and Overvoltage
Pickup Accuracy

± 2% or ± 0.5 volts of the pickup setting, whichever is greater.

Dropout Accuracy

± 2% of pickup.

Instantaneous Time Accuracy

Less than 50 ms for a voltage level that exceeds the pickup
setting by 5% or 1 volt, whichever is greater.

Definite Time Range

Adjustable over the range of 0.1 to 9.9 seconds in increments of
0.1 seconds. A setting of 00 designates instantaneous timing.

Summary of Contents for BE1-27

Page 1: ...INSTRUCTION MANUAL FOR UNDERVOLTAGE OVERVOLTAGE AND UNDER OVERVOLTAGE RELAYS BE1 27 BE1 59 AND BE1 27 59 Publication Number 9 1706 00 990 Revision C 11 99...

Page 2: ...ORM THE PROCEDURES PRESENTED IN THIS MANUAL INTRODUCTION The purpose of this Instruction Manual is to furnish information concerning the operation and installation of this device To accomplish this th...

Page 3: ...NY First Printing January 1986 1985 1999 Basler Electric Company Printed in USA November 1999 It is not the intention of this manual to cover all details and variations in equipment nor does this manu...

Page 4: ...N 3 1 General 3 1 System Voltages 3 1 Step Down Transformers 3 1 Low Pass Filter and Full Wave Rectifier 3 2 Pickup Settings 3 2 Pickup Comparators 3 2 Timer Circuit 3 2 Outputs 3 3 Targets 3 3 Power...

Page 5: ...iv INTRODUCTION CONTENTS Continued SECTION 6 MAINTENANCE 6 1 General 6 1 In House Repair 6 1 Storage 6 1 SECTION 7 MANUAL CHANGE INFORMATION Changes 7 1...

Page 6: ...e manufacturer for proper operation Overvoltage conditions stress the insulation level of the equipment and may cause a dielectric breakdown resulting in a flashover to ground Automatic Transfer Switc...

Page 7: ...ingle conductor may break or the insulation may deteriorate resulting in a high resistance ground fault which may not be detected by the overcurrent relays This condition however may be sensed by an o...

Page 8: ...has the following features A Single phase voltage sensing 3 Sensing input compatible with a pickup adjustment range of 55 to 160 Vac F Two normally open output relays one per function E1 Definite timi...

Page 9: ...2 Adc flowing through the output trip circuit and are rated at 30 A for 1 second 7 A for 2 minutes and 3 A continuously Internally operated targets should be selected if the breaker control circuit is...

Page 10: ...exceeds ANSI IEEE C37 90 one minute dielectric test as follows All Circuits to Ground 2 828 Vdc excludes communication ports Communication Ports to Ground 500 Vdc Input Circuits to Output Circuits 2 0...

Page 11: ...ves in Section 3 C UNDER INST Control Optional Establishes setpoint for the instantaneous undervoltage function Continuously adjustable over the range defined by the style number D OVER PICKUP Control...

Page 12: ...tage pickup setting is exceeded J Target Indicators Optional Magnetically latching indicators are tripped to red to indicate that an undervoltage or overvoltage output relay has been energized K Push...

Page 13: ...evices which respond to the voltage magnitude of the monitored circuit Figure 3 1 is a functional block diagram of the BE1 27 59 Under Overvoltage Relay Figure 3 1 Functional Block Diagram SYSTEM VOLT...

Page 14: ...ted comparator s output goes high When the monitored system voltage is less than any pickup setting the effected comparator s output goes low The effects of these outputs are shown below Relevant Pick...

Page 15: ...2857 23 vsd 11 22 99 Range 2 Range 3 Range 4 Voltage Difference From Pickup 01 02 03 05 07 10 20 30 40 50 60 80 99 D2857 24 vsd 11 22 99 0 1 1 0 100 1000 Range 2 Range 3 Range 4 0 1 2 3 4 5 6 7 8 9 10...

Page 16: ...2857 25 vsd 11 22 99 Range 2 Range 3 Range 4 100 0 1 1 0 10 0 100 0 Voltage Difference From Pickup Time in Seconds 01 02 03 05 07 10 20 30 40 50 60 80 99 D2750 14 vsd 11 22 99 0 1 2 3 4 5 6 8 9 10 11...

Page 17: ...ange 3 Range 4 7 28 56 0 1 1 0 10 0 100 0 1000 0 0 1 2 3 4 5 6 8 9 10 11 12 Voltage Difference From Pickup Time in Seconds 01 02 03 05 07 10 20 30 40 50 60 80 99 0 4 8 12 16 20 24 32 36 40 44 48 0 8 1...

Page 18: ...hree new power supplies and a cross reference to the style number identifiers are shown in the following table Table 3 1 Wide Range Power Supply Voltage Ranges Power Supply Style Chart Identifier Nomi...

Page 19: ...a solid state device If a wiring insulation test is required remove the connecting plugs and withdraw the cradle from its case 3 When the connecting plugs are removed the relay is disconnected from th...

Page 20: ...listed in the Style Number Identification Chart before connecting and energizing a particular relay Connections should be made with 14 AWG stranded wire or better NOTE Be sure the relay case is hard w...

Page 21: ...INSTALLATION 4 3 Figure 4 2 S1 Case Single Ended Semi Flush Mounting Outline Dimensions Side View...

Page 22: ...4 4 INSTALLATION Figure 4 3 S1 Case Single Ended Projection Mount Outline Dimensions Side View...

Page 23: ...INSTALLATION 4 5 Figure 4 4 S1 Case Double Ended Semi Flush Mounting Outline Dimensions Side View...

Page 24: ...4 6 INSTALLATION Figure 4 5 S1 Case Double Ended Projection Mount Outline Dimensions Side View...

Page 25: ...INSTALLATION 4 7 Figure 4 6 S1 Case Single Ended Semi Flush Mounting Outline Dimensions Rear View...

Page 26: ...4 8 INSTALLATION Figure 4 7 S1 Case Single Ended Projection Mount Outline Dimensions Rear View...

Page 27: ...INSTALLATION 4 9 Figure 4 8 S1 Case Double Ended Semi Flush Mounting Outline Dimensions Rear View...

Page 28: ...4 10 INSTALLATION Figure 4 9 S1 Case Double Ended Projection Mount Outline Dimensions Rear View...

Page 29: ...INSTALLATION 4 11 Figure 4 10 S1 Case Panel Drilling Diagram Semi Flush Mounting...

Page 30: ...4 12 INSTALLATION Figure 4 11 S1 Case Single Ended Projection Mount Panel Drilling Diagram Rear View...

Page 31: ...INSTALLATION 4 13 Figure 4 12 S1 Case Double Ended Projection Mounting Panel Drilling Diagram Rear View...

Page 32: ...4 14 INSTALLATION Figure 4 13 BE1 27 Internal Connections...

Page 33: ...INSTALLATION 4 15 Figure 4 14 BE1 59 Internal Connections...

Page 34: ...4 16 INSTALLATION Figure 4 15 BE1 27 59 Internal Connections...

Page 35: ...INSTALLATION 4 17 BE1 27 BE1 59 BE1 27 59 6 D2816 13 05 29 98 7 52 A B C Figure 4 16 Typical AC Connections...

Page 36: ...9 TARGET 27 or 59 8 27 or 59 9 27 or 59 5 27 or 59 18 27 or 59 20 27 or 59 19 2 27 or 59 20 27 or 59 19 2 AUXILIARY CONTACTS AUXILIARY CONTACTS 27 59 52a LEGEND 52TC TUV TOV IUV IOV UNDER OVERVOLTAGE...

Page 37: ...battery and lamp multimeter etc or method of determining that the output contacts close OPERATIONAL TEST PROCEDURE The following procedure verifies operation and calibration of the relay It should be...

Page 38: ...SOURCE BE1 27 59 27 59 D2816 15 05 29 98 3 4 6 MAIN OUTPUT PC OPERATING POWER AC SOURCE BE1 27 59 27 59 D2816 16 05 29 98 V T1 V K1b T2 1 K1 K1a K1a S1 S2 TO TIMER K1 K1a S1 S2 TO TIMER K1 2 1 NO PIC...

Page 39: ...rn the timed and instantaneous OVERVOLTAGE PICKUP controls fully CCW Slowly decrease the T1 voltage until the OVERVOLTAGE PICKUP indicator and the timed and instantaneous test indicators extinguish St...

Page 40: ...ange 4 This concludes the pickup test Timing The following procedure verifies timing characteristics Step 1 Connect the test circuit shown in Figure 5 2 Output terminal connections are dependent on th...

Page 41: ...te Less than 0 2 sec 9 8 10 0 sec Under Over Under Over Short Inverse 0 087 to 0 187 sec 0 092 to 0 192 sec 6 231 to 6 687 sec 6 557 to 7 247 sec Medium Inverse 0 292 to 0 392 sec 0 307 to 0 407 sec 2...

Page 42: ...ssembly preferably in its case IN HOUSE REPAIR If in house repair is to be attempted the quality of replacement parts must be at least equal to that of the original components Where special components...

Page 43: ...ary of Changes Revision Summary of Changes ECA ECO Date A and B Information on these revisions is not available at this time 8401 8449 C Revised the manual to the current standard format Changed the c...

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