Basler Electric BE1-50/51B-230 User Manual

INSTRUCTION MANUAL

FOR

OVERCURRENT RELAYS
BE1-50/51B-230/-234/-239

Publication: 9252000894
Revision: H 12/11

INTRODUCTION

This instruction manual provides information about the operation and installation of the BE1-50/51B-230,
BE1-50/51B-234, and BE1-50/51B-239 Overcurrent Relays. To accomplish this, the following information
is provided:

 General Information and Specifications
 Controls and Indicators
 Functional Description
 Installation and Maintenance
 Testing

WARNING!

To avoid personal injury or equipment damage, only qualified personnel should
perform the procedures in this manual.

9252000894 Rev H BE1-50/51B-230/-234/-239 Introduction i

First Printing: October 2006

Printed in USA

Copyright © 2006-2011 Basler Electric, Highland Illinois 62249 USA

All Rights Reserved

December 2011

CONFIDENTIAL INFORMATION

of Basler Electric, Highland Illinois, USA. 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.

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 Electric.

BASLER ELECTRIC

12570 STATE ROUTE 143

HIGHLAND IL 62249 USA

http://www.basler.com, [e-mail]

PHONE [phone] FAX [phone]

ii BE1-50/51B-230/-234/-239 Introduction 9252000894 Rev H

REVISION HISTORY

The following information provides a historical summary of the changes made to this instruction manual
(9252000894). Revisions are listed in reverse chronological order.

Manual

Revision and Date

H, 12/11

G, 11/10

F, 12/08

E, 08/08

D, 05/08

C, 03/08

B, 11/07

A, 12/06

—, 10/06

 Made changes to reflect that a new connection plug is included with

the relay.

 Updated year of IEEE C37.90 specifications in Section 1.
 Improved description of Locator B (Active/Pickup LED) in Table 2-1.

 Removed all references to a connection plug supplied with relay.
 Added year to IEEE specifications in Section 1.

 Improved Figure 5-4 and Figure 5-8, Target Indicator Test Setup.
 Added GOST-R Certification in Section 1.
 Minor text edits in Section 3 and Section 5.

 Added 9252000239 (5 amp relay with case).
 Updated Figures 2-2, 2-3, and 2-4 to show new layout of SW3.

 Minor corrections in Section 5, Testing.
 Updated front panel drawings.
 Added 9252000234 (1 amp relay).
 Revised target current ranges stated throughout the manual.

 Clarified continuous rating for the current sensing input. Added

derating graph.

 Added IEEE C37.90.2 compliance for radiated interference.
 Added cURus recognition.
 Modified target testing procedure to provide individual testing of the

51 and 50-A targets.

 Added publication number and revision level to the footer of each

page.

 Initial release

Change

9252000894 Rev H BE1-50/51B-230/-234/-239 Introduction iii

iv BE1-50/51B-230/-234/-239 Introduction 9252000894 Rev H

CONTENTS

SECTION 1 • GENERAL INFORMATION ................................................................................................ 1-1

SECTION 2 • CONTROLS AND INDICATORS ........................................................................................ 2-1

SECTION 3 • FUNCTIONAL DESCRIPTION ........................................................................................... 3-1

SECTION 4 • INSTALLATION .................................................................................................................. 4-1

SECTION 5 • TESTING ............................................................................................................................ 5-1

APPENDIX A • CHARACTERISTIC CURVES ......................................................................................... A-1

9252000894 Rev H BE1-50/51B-230/-234/-239 Introduction v

vi BE1-50/51B-230/-234/-239 Introduction 9252000894 Rev H

SECTION 1 • GENERAL INFORMATION

TABLE OF CONTENTS

SECTION 1 • GENERAL INFORMATION ................................................................................................ 1-1

Introduction ............................................................................................................................................ 1-1

Features ................................................................................................................................................. 1-1

Advantages ........................................................................................................................................ 1-1

Specifications ......................................................................................................................................... 1-2

Time Overcurrent (51) Element .......................................................................................................... 1-2

Instantaneous Overcurrent A (50-A) Element .................................................................................... 1-2

Instantaneous Overcurrent B (50-B) Element .................................................................................... 1-3

Current Sensing Input ........................................................................................................................ 1-3

Frequency Response ......................................................................................................................... 1-5

Transient Response ........................................................................................................................... 1-5

Harmonic Rejection ............................................................................................................................ 1-5

Target Indicators ................................................................................................................................ 1-6

Output Contacts ................................................................................................................................. 1-6

Type Tests .......................................................................................................................................... 1-7

Agency Recognition ........................................................................................................................... 1-7

Environment ....................................................................................................................................... 1-7

Physical .............................................................................................................................................. 1-7

Figures

Figure 1-1. Current Sensing Input Derating Curve (BE1-50/51B-230/-239) ............................................. 1-3

Figure 1-2. Current Sensing Input Derating Curve (BE1-50/51B-234)
Figure 1-3. Current Sensing Input Burden (BE1-50/51B-230/-239)
Figure 1-4. Current Sensing Input Burden (BE1-50/51B-234)
Figure 1-5. Harmonic Rejection

...................................................... 1-4

.......................................................... 1-4

.................................................................. 1-5

................................................................................................................. 1-6

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ii BE1-50/51B-230/-234/-239 General Information 9252000894 Rev H

SECTION 1 • GENERAL INFORMATION

Introduction

BE1-50/51B-230, BE1-50/51B-234, and BE1-50/51B-239 relays provide non-directional, single-phase or
ground overcurrent protection and are direct replacements for General Electric IAC66K relays. The BE1­50/51B-230 and BE1-50/51B-239 have 5 ampere current sensing inputs. The BE1-50/51B-234 has a 1
ampere current sensing input. The BE1-50/51B-230 and BE1-50/51B-234 relays are supplied as draw-out
assemblies that plug directly into existing cases for IAC66K relays. The draw-out assemblies are supplied
with relay covers and adaptor plates for mounting the covers onto existing IAC66K cases. The BE1­50/51B-239 relay is a draw-out assembly supplied with a case and cover. A connection plug is supplied
with all models.

BE1-50/51B-230, BE1-50/51B-234, and BE1-50/51B-239 relays are self-powered, compatible with 50 or
60 Hz power systems, and have three protection elements: one time overcurrent (51) element and two
instantaneous overcurrent (50) elements. The 51 element offers timing characteristic curves similar to
those used by GE IAC and ABB relays.

Features

A wide range of pickup settings and front panel selectable time characteristics permit applications
involving coordination with fuses, reclosers, cold load pickup, motor starting, and fixed time requirements.
In addition, an integrating reset function is available to simulate the disk reset of electromechanical relays.

BE1-50/51B-230, BE1-50/51B-234, and BE1-50/51B-239 overcurrent relays have the following standard
features.

• Independent time and instantaneous elements

• A secure method to manually 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

• Gravity latching targets retain indication without power

• Built-in accuracy eliminates internal adjustments

• Minimum transient overreach

• Field selectable characteristic curve selection similar to either GE IAC or ABB type curves

• Field selectable instantaneous or integrating reset

• Field selectable 50 or 60 Hz operation

• Field selectable 0.0 or 0.1 second, fixed, instantaneous delay

Internal switches provide for selecting system-operating frequencies of 50 or 60 Hz, instantaneous
element delays of 0.0 or 0.1 second, characteristic curve group selection for either GE IAC or ABB type
curves, and instantaneous or integrating reset characteristics. Switch location and description is provided
in Section 2.

Advantages

BE1-50/51B-230, BE1-50/51B-234, and BE1-50/51B-239 overcurrent relays have many advantages over
other overcurrent relays. The primary advantages are:

• Time characteristics are defined by equations and graphs

• Field selectable time characteristics

• Very low burden extends the linear range of the CTs

• Self powered from the sensed current

• Continuous automatic calibration

BE1-50/51B-230, BE1-50/51B-234, and BE1-50/51B-239 overcurrent relays may be tested without
removing the relay from the case. Shorting contacts are provided for all current inputs when the
connection plugs or relay chassis is removed from the relay case.

9252000894 Rev H BE1-50/51B-230/-234/-239 General Information 1-1

Specifications

BE1-50/51B-230, BE1-50/51B-234, and BE1-50/51B-239 electrical and physical specifications are listed
in the following paragraphs.

Time Overcurrent (51) Element

BE1-50/51B-230/-239 Pickup

Setting Range ............................ 0.5 to 15.9 Aac

Setting Increment ....................... 0.1 Aac

Accuracy .................................... Sum of ±2% and ±25 mAac

BE1-50/51B-234 Pickup

Setting Range ............................ 0.1 to 3.18 Aac

Setting Increment ....................... 0.02 Aac

Accuracy .................................... Sum of ±2% and ±5 mAac

Dropout

Dropout occurs at 95% of pickup value.

Characteristic Curves

Available curve types follow IEEE Standard C37.112 (1996) and emulate standard GE IAC, ABB CO, and
BS142 curves. Appendix A, Characteristic Curves illustrates the available curves and lists the applicable
constants.

Curve Types .............................. Short Inverse, Long Inverse, Definite Time, Moderately Inverse, Inverse,

Very Inverse, Extremely Inverse, BS142 Very Inverse, BS142 Extremely

Inverse, Fixed Time

Time Multiplier ........................... 11 curves for each characteristic

Timing Accuracy ........................ ±1 cycle, ±2%. This accuracy applies to the range of 1.3 to 40 times tap

and is for a given measured multiple of tap.

Fixed Timing

Setting Range ............................ 0.1 to 9.9 s

Setting Increment ....................... 0.1 s

Timing Accuracy ........................ ±1 cycle, ±2% of the time to trip for time dial settings ≥0.1.

Reset

Integrating .................................. Simulates the disk reset of electromechanical relays and begins when

the current decreases below 95% of pickup. Appendix A, Characteristic

Curves illustrates the integrating reset characteristic curve and equation.

Instantaneous ............................ Reset occurs within 16 ms of when the current decreases below 95% of

the pickup level.

Instantaneous Overcurrent A (50-A) Element

BE1-50/51B-230/-239 Pickup

Setting Range ............................ 2 to 99 Aac

Setting increment ....................... 1 Aac

Accuracy .................................... Sum of ±2% and ±25 mAac

BE1-50/51B-234 Pickup

Setting Range ............................ 0.4 to 19.8 Aac

Setting increment ....................... 0.2 Aac

Accuracy .................................... Sum of ±2% and ±5 mAac

Dropout

Dropout occurs at 95% of pickup value.

Time Delay

Switch selectable—no intentional delay (SW3-2 open/off) or a fixed delay of 100 ms (SW3-2 closed/on).
Appendix A, Characteristic Curves illustrates the characteristic curve for the 50-A and 50-B elements.

1-2 BE1-50/51B-230/-234/-239 General Information 9252000894 Rev H

Instantaneous Overcurrent B (50-B) Element

Continuous Current

Current Sensing Input

0

2

4

6

8

10

12

14

16

-40 -20 0 20 40 60

Ambient Temperature (C)

Current (Aac)

BE1-50/51B-230/-239 Pickup

Setting Range ............................ 1 to 15.9 Aac

Setting increment ....................... 0.1 Aac

Accuracy .................................... Sum of ±2% and ±25 mAac

BE1-50/51B-234 Pickup

Setting Range ............................ 0.2 to 3.18 Aac

Setting increment ....................... 0.02 Aac

Accuracy .................................... Sum of ±2% and ±5 mAac

Dropout

Dropout occurs at 95% of pickup value.

Time Delay

Fixed at no intentional delay. Appendix A, Characteristic Curves illustrates the characteristic curve for the
50-A and 50-B elements.

Reset Characteristic

Resets within 16 ms of when sensed current decreases below the pickup level.

Current Sensing Input

BE1-50/51B-230

Continuous Rating ..................... 14 Aac∗

1 Second Rating ........................ 400 Aac

∗ Continuous rating is 14 Aac for temperatures up to 45°C. See Figure 1-1 for derating curve.

Figure 1-1. Current Sensing Input Derating Curve (BE1-50/51B-230/-239)

9252000894 Rev H BE1-50/51B-230/-234/-239 General Information 1-3

BE1-50/51B-234

Continuous Current

Current Sensing Input

0

0.4

0.8

1.2

1.6

2

2.4

2.8

3.2

-40 -20 0 20 40 60

Ambient Temperature (C)

Current (Aac)

BE1-50/51B-230/-239 CT Burden

0

10

20

30

40

50

60

70

80

90

100

110

120

130

140

0 10 20 30 40

Input Current (Amps)

Burden in VA (rms)

Continuous Rating ..................... 2.8 Aac∗

1 Second Rating ........................ 80 Aac

∗ Continuous rating is 2.8 Aac for temperatures up to 45°C. See Figure 1-2 for derating curve.

Figure 1-2. Current Sensing Input Derating Curve (BE1-50/51B-234)

BE1-50/51B-230/-239 Burden

Figure 1-3

At 0.5 Aac .................................. 2.8 Ω

At 5.0 Aac .................................. 0.3 Ω

1-4 BE1-50/51B-230/-234/-239 General Information 9252000894 Rev H

illustrates the current sensing input burden characteristic.

Figure 1-3. Current Sensing Input Burden (BE1-50/51B-230/-239)

BE1-50/51B-234 Burden

BE1-50/51B-234 CT Burden

0

10

20

30

40

50

60

70

80

90

0 1 2 3 4 5 6 7 8

Input Current (Amps)

Burden in VA (rms)

Figure 1-4

At 0.1 Aac .................................. 57.0 Ω

At 1.0 Aac .................................. 6.9 Ω

illustrates the current sensing input burden characteristic.

Figure 1-4. Current Sensing Input Burden (BE1-50/51B-234)

Frequency Response

A change of ±5 Hz from the nominal 50/60 Hz current causes <0.5% change in the current required for
pickup.

Transient Response

<10% overreach with system time constants up to 40 ms.

Harmonic Rejection

Rejection of odd and even harmonics is illustrated in Figure 1-5.

9252000894 Rev H BE1-50/51B-230/-234/-239 General Information 1-5

Figure 1-5. Harmonic Rejection

Target Indicators

A gravity-latched, manually-reset, current-operated target indicator is provided for the time-overcurrent
(51) trip output and the instantaneous overcurrent A (50-A) trip output. A target indicator is not provided
for the 50-B trip output. The level of trip circuit current required to operate each target is individually
controlled by a circuit board jumper. See Section 2, Controls and Indicators for jumper locations and
function assignments

Minimum Operating Current

Jumper Position—Pins 1 and 2: 0.9 to 2.25 A ∗
Jumper Position—Pins 2 and 3: 80 mA to 200 mA ∗

∗ Minimum operating current values. See Output Contacts for the maximum acceptable levels of trip

circuit currents.

Output Contacts

Each protective element (51, 50-A, and 50-B) is equipped with a set of Form A contacts rated for tripping
duty.

Resistive Ratings

120/240 Vac ............................... Make 30 amperes for 0.2 seconds, carry 7 amperes for 2 minutes, 3

amperes continuously, and break 5 amperes.

125/250 Vdc ............................... Make 30 amperes for 0.2 seconds, carry 7 amperes for 2 minutes, 3

amperes continuously, and break 0.3 ampere.

Inductive Ratings

120/240 Vac, 125/250 Vdc ........ Make and carry 30 amperes for 0.2 seconds, carry 7 amperes for 2

minutes, 3 amperes continuously, and break 0.3 ampere. (L/R = 0.04).

Terminal Assignments

51 Element ................................. 1, 2

50-A Element ............................. 1, 3

50-B Element ............................. 9, 10

1-6 BE1-50/51B-230/-234/-239 General Information 9252000894 Rev H

Type Tests

Isolation ..................................... IEEE C37.90-2005

Transient Surge ......................... IEEE C37.90.1-2004

Radiated Interference ................ IEEE C37.90.2-2004

Electrostatic Discharge .............. IEEE C37.90.3-2006

Vibration ..................................... IEC 255-21-1

Shock and Bump ....................... IEC 255-21-2

Agency Recognition

cURus

cURus recognition per UL Standard 508, File E97035 and CSA Standard C22.2 No. 14.

GOST-R Certification

GOST-R certified per the relevant standards of Gosstandart of Russia.

Environment

Operating Temperature ............. –40 to 70°C (–40 to 158°F)

Storage Temperature ................ –50 to 70°C (–58 to 158°F)

Physical

Weight ........................................ 6.1 lb (2.77 kg)

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1-8 BE1-50/51B-230/-234/-239 General Information 9252000894 Rev H

SECTION 2 • CONTROLS AND INDICATORS

TABLE OF CONTENTS

SECTION 2 • CONTROLS AND INDICATORS ........................................................................................ 2-1

Introduction ............................................................................................................................................ 2-1

Front Panel Controls and Indicators ...................................................................................................... 2-1

Circuit Board Controls ............................................................................................................................ 2-3

Figures

Figure 2-1. Front Panel Controls and Indicators ....................................................................................... 2-1

Figure 2-2. Circuit Board Controls
Figure 2-3. View of 50-B Pickup Selector Switches (BE1-50/51B-230/-239)
Figure 2-4. View of 50-B Pickup Selector Switches (BE1-50/51B-234)

Tables

Table 2-1. Front Panel Controls and Indicators ......................................................................................... 2-2

Table 2-2. Circuit Board Controls

............................................................................................................. 2-3

............................................ 2-5

.................................................... 2-5

.............................................................................................................. 2-4

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ii BE1-50/51B-230/-234/-239 Controls and Indicators 9252000894 Rev H

SECTION 2 • CONTROLS AND INDICATORS

Introduction

BE1-50/51B-230, BE1-50/51B-234, and BE1-50/51B-239 relay controls and indicators are located on the
front panel and circuit board.

Front Panel Controls and Indicators

Front panel controls and indicators are illustrated in Figure 2-1 and described in Table 2-1. The locators
and descriptions of Table 2-1 correspond to the locators shown in Figure 2-1.

Figure 2-1. Front Panel Controls and Indicators

9252000894 Rev H BE1-50/51B-230/-234/-239 Controls and Indicators 2-1

Table 2-1. Front Panel Controls and Indicators

Locator

Description

A

Time Overcurrent Manual Trip Jacks. These jacks are used to manually trip a breaker

terminated with two standard 0.08 inch diameter phone-tip plugs, into the two jacks.

B

Active/Pickup Indicator. This bicolor LED indicates the level of current sensed by the relay.

on 5A units or 0.1 A pickup setting on 1A units.

C

Target Reset Button. This button is pressed to reset the two, gravity-latched target
indicators (locator F).

E

Instantaneous Overcurrent A Pickup Selector Switches. These two rotary switches select

F

Target Indicators. Red target indicators latch when the corresponding set of trip contacts

indicators are reset by pressing the target reset button (locator C).

G

Time Overcurrent Pickup Selector Switches. These two rotary switches select the time

while the relay is in service may cause the relay to trip.

H

Curve Selector Switch. This ten position rotary switch selects one of nine inverse timing

I

Time Overcurrent Time Dial Selector Switches. These two rotary switches select the

these switches corresponds to a time delay of 0.0 to 9.9 seconds.

controlled by the 51 trip output contacts. This is achieved by plugging a jumper wire,

A green LED indicates that the relay is active but not picked up. The LED changes to red
when the sensed current exceeds the time overcurrent pickup setting. The LED changes
from red to green when the sensed current decreases below 95% of the time overcurrent
pickup setting.
Note: A minimum of 0.5 A (5A units) or 0.1 A (1A units) is required to light the LED. The
LED may not turn green (active) before turning red (picked up) at the 0.5 A pickup setting

D Instantaneous Overcurrent Manual Trip Jacks. These jacks are used to manually trip a

breaker controlled by the 50-A trip output contacts. This is achieved by plugging a jumper
wire, terminated with two standard 0.08 inch diameter phone-tip plugs, into the two jacks.
These jacks do not activate the 50-B trip output contacts.

the instantaneous overcurrent A (50-A) pickup current setting in amperes (UNITS and
TENTHS on the BE1-50/51B-230/-239, COARSE and FINE on the BE1-50/51B-234).
Adjusting these selector switches while the relay is in service may cause the relay to trip.

NOTE

When testing time overcurrent functions, instantaneous pickup settings of 00
will affect the calibration of the time functions. Time pickup settings of 00 also
affect instantaneous functions.

closes and sufficient trip circuit current is detected. (The level of current that will trip each
target indicator is jumper-selectable. See Circuit Board Controls for more information.) The
Time target indicates the flow of current in the time overcurrent (51) trip circuit. The Inst
target indicates the flow of current in the instantaneous overcurrent A (50-A) trip circuit. No
target is provided for the instantaneous overcurrent B (50-B) trip circuit. Both target

overcurrent pickup current setting in amperes (UNITS and TENTHS on the BE1-50/51B­230/-239, COARSE and FINE on the BE1-50/51B-234). Adjusting these selector switches

characteristics or one fixed time function. Refer to Appendix A, Characteristic Curves for
details about the timing characteristics of the BE1-50/51B-230/-239 and BE1-50/51B-234.

desired curve of the timing characteristic selected by the Curve Selector Switch (locator H).
When a fixed time characteristic is used (Curve Selector Switch setting of F), the setting of

2-2 BE1-50/51B-230/-234/-239 Controls and Indicators 9252000894 Rev H

Circuit Board Controls

Circuit board controls consist of two rotary selector switches, a four-position slide switch, and two
jumpers. Circuit board controls are illustrated in Figure 2-2 and described in Table 2-2. The locators and
descriptions of Table 2-2 correspond to the locators shown in Figure 2-2.

Figure 2-2. Circuit Board Controls

9252000894 Rev H BE1-50/51B-230/-234/-239 Controls and Indicators 2-3