Basler Electric BE1-32R User Manual

INSTRUCTION MANUAL

FOR

DIRECTIONAL POWER RELAYS

BE1-32R AND BE1-32O/U

Publication: 9171100990 Revision: T 01/13

INTRODUCTION

This instruction manual provides information about the operation and installation of the BE1-32R and BE1-32O/U Directional Power Relays. To accomplish this, the following information is provided:

 General Information and Specifications

 Controls and Indicators

 Functional Description

 Installation

 Tests and Adjustments

WARNING!

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

NOTE

Be sure that the relay is hard-wired to earth ground with no smaller than 12 AWG copper wire attached to the ground terminal on the rear of the unit case. When the relay is configured in a system with other devices, it is recommended to use a separate lead to the ground bus from each unit.

9171100990 Rev T BE1-32R, BE1-32O/U Introduction i

First Printing: September 1986

Printed in USA

January 2013

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, info@basler.com

PHONE +1 618.654.2341 FAX +1 618.654.2351

ii BE1-32R, BE1-32O/U Introduction 9171100990 Rev T

REVISION HISTORY

The following information provides a historical summary of the changes made to the BE1-32R and BE132O/U instruction manual (9171100990). Revisions are listed in reverse chronological order.

Manual

Revision and Date

T, 01/13

S, 05/10

R, 09/07

P, 11/06

N, 08/05

M, 10/03

L, 08/02

K, 08/01

J, 09/00

 Updated case and cover drawings in Section 4.

 Replaced Figure 4-4, Panel Drilling/Cutout for M1 Case.  Added Notes for Figure 4-16, Control Circuit Diagram.  Added Storage statement in Section 4.

 Added manual part number and revision to all footers.  Updated Power Supply Burden data in Section 1.  Updated Target Indicator description in Section 3.  Moved content of Section 6, Maintenance to Section 4 and deleted

Section 6.

 Updated Table 1-1 Steam Turbine Percent of Rated kW.  Added GOST-R to Specifications in Section 1.

 In Section 1 and 3, where applicable, added recommendation against

using relay with power factors below 0.10.

 Corrected the shorting bar illustration across terminals 8 and 9 in

Figures 4-17, 4-18, 4-19, and 4-20.

 Replaced cover illustrations and Figure 2-1 with drawing showing

revised front panel layout.

 Modified style chart (Figure 1-11) to clarify sensing input range

selection.

 Modified the function block diagram of Figure 3-1.  Added information to Section 3 about sensing input range 1, 4, and 7

current ratings and burden.

 Deleted Tables 3-1, 3-2, and 3-3. (These tables are duplicates of the

tables already provided in Section 1.) Modified the text references accordingly.

 Reorganized the Section 4 mounting drawings according to type:

drilling, outline-rear view, outline-side view, and outline-cover.

 Deleted Section 4 dielectric test information (already provided in

Section 1).

 Moved manual revision information from Section 7 to introduction

section of the manual.

 Revised Figure 1-14 to illustrate the new 32R inverse time curves.  Corrected various minor errors throughout the manual.

 Improved Pickup description in Section 3.  Revised Figures 4-2 and 4-12 to show slotted knob on the front panel.  Revised Figure 4-4.

 Updated the outline drawings in Section 4 to show new case cover

design.

 Removed the selectable power supply option from the style chart.

Change

9171100990 Rev T BE1-32R, BE1-32O/U Introduction iii

Manual

Revision and Date

H, 06/98

G, 07/95

F, 06/94

E, 02/94

Change

 Deleted references to Service Manual 9171100620.  Changed power supply voltage and burden data listed in Section 1.  Added information to instantaneous response time specification in

Section 1.

 Added Figure 1-13 and associated paragraphs describing the

underpower element.

 Corrected the power supply entries in the style chart.  Add information to the pickup accuracy specification in Section 1.  Added information to the Power Supply paragraph in Section 3.  Added outline drawings to cover all available case options.  Changed the case ground symbol shown in the Internal Connection

diagrams.

 Revised the manual format.

 Revised the pickup accuracy stated in Specifications of Section 1.  Corrected isolation specification in Section 1 and dielectric test values

in Section 4.

 Added Note 3 to Figure 4-20.  Corrected CT sensing connections in Figure 4-21.  Moved polarity indications in Figure 4-25.  Deleted 30 label in Figure 5-5 and corrected equation.

 Added 120 Vac label to Figure 1-11.  Changed reference for Figure 1-12 from Specifications, Timing

Accuracies to Timing Adjustment Range.

 Added Figure 1-13.  Corrected input sensing terminal numbers in Figure 4-23.  Deleted reference to Figure 3-8 (Figure 3-8 was replaced by Figure 1-

13.)

 Added internal connection and typical connection diagrams to Section

 Added Phase Rotation Sensitivity to Section 1.  Revised the format of the manual.

iv BE1-32R, BE1-32O/U Introduction 9171100990 Rev T

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

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vi BE1-32R, BE1-32O/U Introduction 9171100990 Rev T

SECTION 1 • GENERAL INFORMATION

TABLE OF CONTENTS

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

INTRODUCTION.................................................................................................................................... 1-1

APPLICATION ....................................................................................................................................... 1-1

Example 1: Anti-Motoring ................................................................................................................... 1-1

Example 2: Co-Generator Control ...................................................................................................... 1-2

Example 3: Generator Overload ........................................................................................................ 1-3

Example 4: Intertie ............................................................................................................................. 1-3

Example 5: Delayed Electrical Trip .................................................................................................... 1-4

Example 6: Breaker Opening Detection ............................................................................................. 1-4

Example 7: Reactive Power (Vars) Detection .................................................................................... 1-6

MODEL AND STYLE NUMBER ............................................................................................................. 1-7

Style Number Example ....................................................................................................................... 1-8

SPECIFICATIONS ................................................................................................................................. 1-9

Current Sensing ................................................................................................................................. 1-9

Voltage Sensing ................................................................................................................................. 1-9

Targets ............................................................................................................................................... 1-9

Output Circuits .................................................................................................................................. 1-10

Power Supply ................................................................................................................................... 1-10

Pickup ............................................................................................................................................... 1-10

Timing ............................................................................................................................................... 1-10

Timing—continued ........................................................................................................................... 1-13

Power Range (Pickup) ..................................................................................................................... 1-13

Type Tests ........................................................................................................................................ 1-13

UL Recognition ................................................................................................................................. 1-14

GOST-R ............................................................................................................................................ 1-14

Temperature ..................................................................................................................................... 1-14

Weight .............................................................................................................................................. 1-14

Figures

Figure 1-1. Single-Phase ........................................................................................................................... 1-1

Figure 1-2. Power Relay Start Control....................................................................................................... 1-2

Figure 1-3. Power Relay Start/Stop Control .............................................................................................. 1-3

Figure 1-4. Power Relay Distribution Protection ....................................................................................... 1-3

Figure 1-5. Single-Phase, Non-Electrical Trip Supervision ....................................................................... 1-4

Figure 1-6. Breaker Opening Detection ..................................................................................................... 1-4

Figure 1-7. Power Factor, First and Second Quadrants............................................................................ 1-5

Figure 1-8. Power Factor, Third and Fourth Quadrants ............................................................................ 1-5

Figure 1-9. Underpower Tripping ............................................................................................................... 1-5

Figure 1-11. Modified Type A Sensing ...................................................................................................... 1-7

Figure 1-12. Style Number Identification Chart ......................................................................................... 1-8

Figure 1-13. Overpower Instantaneous Response Time......................................................................... 1-11

Figure 1-14. Underpower Instantaneous Response Time....................................................................... 1-11

Figure 1-15. Overpower Inverse Time Characteristic Curves ................................................................. 1-12

Tables

Table 1-1. Motoring Reverse Power Requirements .................................................................................. 1-2

Table 1-2. Current Sensing Burden in Ohms ............................................................................................ 1-9

Table 1-3. Power Supply Specifications .................................................................................................. 1-10

Table 1-4. Power Pickup Ranges ............................................................................................................ 1-13

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ii BE1-32R, BE1-32O/U General Information 9171100990 Rev T

SECTION 1 • GENERAL INFORMATION

INTRODUCTION

BE1-32R, Directional Overpower and BE1-32O/U, Directional Over/Underpower Relays sense real power (IE times the cosine of θ). These solid-state relays are designed for use in single- or three-phase systems to protect equipment against overpower and/or underpower conditions. They may also be used in the supervisory control of circuits.

APPLICATION

Directional Power Relays are typically used in applications where excessive power flow in the tripping direction is bad. Over and/or underpower protection is desirable where:

• Power flows into a generator, indicating loss of prime mover torque (motoring).

• Power flows into the secondary of a station distribution transformer, indicating an industrial or private

customer is supplying power into the utility system.

• Excessive load has been connected to a system.

• Overload has been placed on a distribution system.

• Overspeeding is a prime concern.

• An open breaker creates an overload on a local generation facility.

• Loss of excitation can be determined by var sensing.

NOTE

This product is not recommended for power factors below 0.10. Contact Basler Electric for recommended products.

Example 1: Anti-Motoring

When a synchronous generator, operating in parallel with a power system, loses prime mover torque, it remains in synchronism with the system and continues to run as a synchronous motor. Motoring draws power from the system to drive the prime mover and can cause severe damage to the prime mover. Steam turbines require a constant flow of steam to remove the heat caused by turbulence or cavitations on or about the blades. Without this flow of steam, heat builds up and may cause softening or distortion of the turbine blades. Diesel engines and gas turbines are less susceptible to immediate damage, but unburned fuel may present a fire or explosion hazard.

BE1-32 Directional Power Relays can detect power flow into the generator and disconnect the generator before the prime mover sustains inevitable damage. Unlike the conditions arising from faults, the electrical conditions involved in anti-motoring protection are balanced. Therefore, single-phase relay protection is adequate. Figure 1-1 shows connections for single-phase relay (type B or V sensing). This connection measures real power if the system voltages are balanced.

The BE1-32R, Reverse Power Relay must be sensitive enough to detect power levels lower than those required to motor the generator. Sensitivity is much more important on steam and hydro turbines than on reciprocating engines and gas turbines.

Figure 1-1. Single-Phase

Motoring Protection

9171100990 Rev T BE1-32R, BE1-32O/U General Information 1-1

Table 1-1 represents the reverse power requirements to motor a generator when the prime mover is

Prime Mover Type

Percent of Rated kW

rotating at synchronous speed with no input power supplied by the prime mover.

Table 1-1. Motoring Reverse Power Requirements

Hydro Turbine 0.2 to 2.0

Steam Turbine (condensing or non-condensing) 0.5 to 3.0

Diesel Engine (no cylinders firing) Up to 25

Gas Turbine Up to 50 (due to compressor load)

The Reverse Power Relay is generally set for levels as low as possible with steam turbines typically being set not higher than three percent and diesels and gas turbines slightly below ten percent.

Time delays are usually employed to avoid nuisance tripping caused by reverse power transient surges that may result from synchronizing or other system disturbances. These time delays are typically set from 2 to 10 seconds, but may be set as high as 30 seconds or more.

An operating condition with very low power levels at a low power factor may not be detected by this product. For very low power levels at power factors of 0.10 or lower, contact Basler Electric for recommended products.

Example 2: Co-Generator Control

In this example, cogeneration concepts are addressed. To illustrate, assume that the cogeneration system has automatic engine controls, an auto-synchronizer, automatic kW, and kvar controls. The system operates virtually by itself. The only function lacking is the start/stop signals to the generators. Two system configurations may be implemented to generate contact closures for start/stop signals.

The first configuration (Figure 1-2) shows a directional power relay connected to the utility to sense kW. The pickup point of the relay is set at the maximum desired utility power level. When the utility power level exceeds the relay pickup point, the output relay contact closes and the generator is automatically started and paralleled with the utility. A time delay is generally included in the start circuit of about 15 or more seconds to ignore transient overload conditions.

When the generator is paralleled and loaded, the kW signal of the utility decreases by the amount of load the generator has accepted. An underpower relay can measure utility power and generate a stop signal when the utility power decreases below a selected level. A time delay is typically provided for the stop signal of one minute or more (however, time delays are totally user controlled). The Basler Electric Model BE1-32O/U Power Relay incorporates both overpower and underpower sensing in a single relay unit and is ideal for this type of application.

Figure 1-2. Power Relay Start Control

1-2 BE1-32R, BE1-32O/U General Information 9171100990 Rev T

In the second configuration, the start signal is generated in the same manner as that of Figure 1-2. The start signal setpoint may be set above the import power setting. The stop signal will require an underpower relay on the generator output. This system is illustrated in Figure 1-3.

Example 3: Generator Overload

When excessive load has been connected to a generating system, the directional power relay can initiate corrective action. Corrective action could be energizing an alarm to alert the station operator. For automated systems, corrective action could be initiating the sequence to either shed non-critical load or to start and parallel an in-house generator to assume the excess load.

Figure 1-3. Power Relay Start/Stop Control

Example 4: Intertie

Another typical use of the directional power relay, addresses excessive load and concerns distribution protection (Figure 1-4). A high voltage bus supplies two transformers: T1 and T2. Both T1 and T2 can supply all connected load. However, neither T1 nor T2 alone can supply the total load. A BE1-32O/U, over/underpower directional relay can protect this distribution system by providing overload protection for each transformer (overpower function) or by sensing power flow through the transformers (reverse power function) in an undesired direction.

Figure 1-4. Power Relay Distribution Protection

9171100990 Rev R BE1-32R, BE1-32O/U General Information 1-3

Example 5: Delayed Electrical Trip

On large steam units, where overspeeding is a prime concern, a reverse power relay can be used to supervise electrical tripping (field and main ac breakers) for selected relay operations (e.g., non-electrical trips, loss of field relay), as shown in Figure 1-5. The reverse power relay delays breaker tripping until trapped steam has been removed from the piping. In this case, a separate direct-tripping anti-motoring relay can be used to protect for situations not related to an automatic shutdown of the unit.

Figure 1-5. Single-Phase, Non-Electrical Trip Supervision

Example 6: Breaker Opening Detection

Figure 1-6 shows a reverse power relay used to detect the opening of a source at an industrial (or other independent generation) location. A location with no generation but multiple ties from a common source is a good candidate for this relay application. With local generation, the relay is applicable if the local generation is not to deliver real power to the utility.

Figure 1-6. Breaker Opening Detection

Under near-floating conditions (minimal flow of real power from the utility), the relay can encounter a wide range of power factor angles in the first and second quadrants (see Figure 1-7). If the local generation is underexcited, reactive power is supplied by the utility and operation is in the first quadrant. Figure 1-7 shows the range of power factor angles (also in the first two quadrants) under heavy line loading. Because of these power factors, the relay must not operate for any angle in the first and second quadrants.

1-4 BE1-32R, BE1-32O/U General Information 9171100990 Rev T

Figure 1-7. Power Factor, First and Second Quadrants

When breaker N opens, operation transfers to the third or fourth quadrants (see Figure 1-8). If transformer exciting current predominates, operation falls in the third quadrant. If cable charging current predominates, operation falls in the fourth quadrant. In either case, the transformer losses must be supplied. In Figure 1-8, a real current component of four milliamperes is shown and represents core losses of the transformer (about 0.1% of rated).

Figure 1-8. Power Factor, Third and Fourth Quadrants

When breaker N opens, real power reverses from normal and flows toward the utility. This power may be flowing to the tapped load. At this time, the relay operates and causes the 52 breaker to open.

Figure 1-9A shows an underpower tripping application based on the BE1-32O/U, model A1F with an overpower setting of 0.5 watts and an underpower setting of 50%. The control circuit for this application is shown in Figure 1-9B. Figure 1-10 shows the operating characteristic in the first and second quadrant. The relay Under contact closes to trip the breaker when the real power flow from the utility drops below

0.25 watts. Because this contact is pre-closed at the instant of breaker closing, the trip circuit must be disabled by a timing relay (62) until after the breaker has closed.

Figure 1-9. Underpower Tripping

9171100990 Rev R BE1-32R, BE1-32O/U General Information 1-5

Example 7: Reactive Power (Vars) Detection

Figure 1-10. True

This example illustrates a directional power relay configured to distinguish between real and reactive power. Real power (watts) is supplied to the synchronous generator by the prime mover, and reactive power (vars) is supplied to the field by the exciter. When field excitation is significantly reduced and the connected system can provide sufficient reactive power to maintain the generator terminal voltage, reactive power flows into the machine and causes it to operate as an induction generator with essentially the same kW output. This situation causes two major problems. First, the additional reactive loading of the faulty generator must be redistributed to other synchronous generators on the system. Secondly, a synchronous generator is not designed to operate as an induction generator. Excessive heating results in the damper (amortisseur) windings, slot wedges, and in the surface iron of the rotor due to the slip frequency current flow when a synchronous generator is operated as an induction generator.

BE1-32R and BE1-32O/U Directional Power Relays are designed to respond to true power (P) as defined by the following equation and illustrated in Figure 1-10.

P = EI (cos θ)

where: P = real power (watts) I = effective current E = effective EMF or system voltage θ = the power factor angle

However, reactive power (Q) is defined by the equation:

Q = EI (sin θ)

Using the trigonometric identity sine θ = cos(θ – 90 )

then: Q = EI (cos(θ – 90 ))

If the phase of the sensed voltage is shifted +90°, the true power relay can be used to monitor reactive power. In practice, this can be accomplished by applying the appropriate line-to-line voltage to a true power measuring relay designed for line-to-neutral sensing. Figure 1-11 illustrates how a single-phase BE1-32R or BE1-32O/U can be connected to measure either real power (watts) or reactive power (vars) flow in a three-phase system. Note the difference of phase relationship between the alternate connections in Figure 1-11.

1-6 BE1-32R, BE1-32O/U General Information 9171100990 Rev T

Figure 1-11. Modified Type A Sensing

MODEL AND STYLE NUMBER

BE1-32R and -32 O/U Directional Power Relays electrical characteristics and operational features are defined by a combination of letters and numbers that make up the style number. Model numbers BE132R or BE1-32O/U designate the relay as a Basler Electric, Class 100, Directional Power Relay. The model number and style number describe the options included in a specific device, and appear on the front panel, draw-out cradle, and inside the case assembly. Upon receipt of a relay, be sure to check the style number against the requisition and the packing list to ensure that they agree.

The style number chart is shown in Figure 1-12.

9171100990 Rev R BE1-32R, BE1-32O/U General Information 1-7

Figure 1-12. Style Number Identification Chart

Style Number Example

If a BE1-32R Directional Overpower Relay is ordered with a style number of A1GA1PA0N1F, the relay would have the following features.

A ------- Single-phase current sensing and line-to-neutral voltage sensing

1 -------- 120 Vac, 0.5 to 20 W sensing input range

G ------- One output relay with normally closed (N.C.) contacts

A1 ------ Instantaneous timing characteristics with one setpoint

P ------- 125 Vdc/120 Vac power supply

A ------- One internally operated target

0 -------- No option 1

N ------- No power supply status output

1 -------- One normally-open, auxiliary output relay

F -------- Semi-flush mounting case

1-8 BE1-32R, BE1-32O/U General Information 9171100990 Rev T

SPECIFICATIONS

Range

Sensing Input Range

1, 4, 7 *

2, 5, 8

3, 6, 9

Low

High

Low

High

Low

High

Tap A

4.811

0.400

0.096

0.022

0.013

0.010

Tap B

2.466

0.240

0.058

0.019

0.012

0.010

Tap C

1.677

0.190

0.045

0.018

0.011

0.010

Tap D

1.277

0.165

0.039

0.018

0.011

0.010

Tap E

1.036

0.151

0.034

0.017

0.011

0.010

Tap F

0.874

0.142

0.032

0.017

0.011

0.010

Tap G

0.760

0.134

0.030

0.017

0.011

0.010

Tap H

0.674

0.129

0.0029

0.017

0.011

0.010

Tap J

0.611

0.126

0.028

0.017

0.011

0.010

Tap K

0.556

0.123

0.027

0.017

0.011

0.010

Current Sensing

BE1-32R and -32 O/U Directional Power Relays are designed for use with five amperes nominal (50/60 HZ) system current transformer secondaries. The input sensing current transformers within the relay are rated as follows.

Sensing Input Ranges 1, 4, and 7 *

Continuous Rating: 7 A 1 Minute Rating: 10 A 1 Second Rating: 140 A

* Refer to Section 3, Functional Description, Current Sensing for sensing input range 1, 4, and 7 current rating and burden considerations.

Sensing Input Ranges 2, 3, 5, 6, 8, and 9

Continuous Rating: 10 A 1 Minute Rating: 15 A 1 Second Rating: 200 A

Burden

Burden values (in ohms) are listed for each sensing input range in Table 1-2.

Table 1-2. Current Sensing Burden in Ohms

* See Section 3, Functional Description, Current Sensing for sensing input range 1, 4, and 7 burden considerations.

Voltage Sensing

Voltage signals are provided by the secondary windings of standard potential transformers (100/200, 50 Hz or 120/240, 60 Hz).

Continuous Voltage Rating: 150% of nominal Burden: <1 VA

Targets

Electronically latched, manually reset target indicators are optionally available to indicate that a trip output contact has been energized. Either internally operated or current operated targets may be selected. Internally operated targets should be selected if the relay has normally closed output contacts.

Current Operated Targets

Minimum Required Current: 200 mA Continuous Rating: 3 A 2 Minute Rating: 7 A 1 Second Rating: 30 A

9171100990 Rev R BE1-32R, BE1-32O/U General Information 1-9

Output Circuits

Resistive Ratings

120 Vac: Make, break, and carry 7 Aac continuously 250 Vdc: Make and carry 30 Adc for 0.2 s, carry 7 Adc continuously, and break 0.3 Adc 500 Vdc: Make and carry 15 Adc for 0.2 s, carry 7 Adc continuously, and break 0.3 Adc

Inductive Ratings

120 Vac, 125 Vdc, 250 Vdc: Break 0.3 A (L/R = 0.04)

Power Supply

Power supply specifications are listed in Table 1-3. All ac references are at 50/60 Hz.

Table 1-3. Power Supply Specifications

Input Voltage

Type

Nominal Range

O (mid range) 48 Vdc 24 to 150 Vdc 3.6 W

Burden at Nominal

P (mid range)

R (low range) 24 Vdc

T (high range)

* Type R power supply may require 14 Vdc to begin operation. Once operating, the voltage may be reduced to 12 Vdc.

Pickup

Single-Phase Accuracy

PF = 1: ±2 percent of front panel setting or 0.05 W, whichever is greater

0.5<PF<1: ±5 percent of front panel setting or 0.05 W, whichever is greater

Three-Phase Accuracy

PF =1 ±2 percent of front panel setting or 0.15 W, whichever is greater

0.5<PF<1 ±5 percent of front panel setting or 0.15 W, whichever is greater

This product is not recommended for power factors below 0.10. Contact Basler Electric for recommended products.

Dropout Accuracy

95% of actual pickup.

125 Vdc 120 Vac

250 Vdc 240 Vac

24 to 150 Vdc 90 to 132 Vac

12 to 32 Vdc *

68 to 280 Vdc 90 to 270 Vac

3.7 W

17.3 VA

3.7 W

3.8 W

24.6 VA

Timing

Response Time

Instantaneous Overpower: <80 ms (60 Hz) or <100 ms (50 Hz) for real power magnitude of

2 times the setting and greater. The response time is characterized by the graph in Figure 1-13.

Instantaneous Underpower: <50 ms (60 Hz) or <65 ms (50 Hz) for real power magnitude of

0.8 times the setting and less. The response time is characterized by the graph in Figure 1-14.

Adjustment Range

Definite Time: Thumbwheel adjustable over the range of 0.1 to 9.9 seconds in

increments of 0.1 seconds or by use of a multiplier switch, 1 to 99 seconds in increments of 01 seconds. A setting of 00 enables instantaneous timing.

1-10 BE1-32R, BE1-32O/U General Information 9171100990 Rev T

Inverse Time: Available for the overpower function only. Adjustment of the

Time Dial thumbwheel selects curves from 01 to 99 in increments of 01. A setting of 00 enables instantaneous timing.

Refer to Figure 1-15 for examples of the overpower inverse time

characteristic curves.

Figure 1-13. Overpower Instantaneous Response Time

Figure 1-14. Underpower Instantaneous Response Time

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Figure 1-15. Overpower Inverse Time Characteristic Curves

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Timing—continued

Input Type

Nom. Volts

Range

Switch Position (in watts)

A B C D E F G H J

A, B or V

120

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

20.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

100

120

140

160

180

200

Lo 5 10

100

200

300

400

500

600

700

800

900

1000

100

125

150

175

200

225

250

C, D, or E

120

6.0

12.0

18.0

24.0

30.0

36.0

42.0

48.0

54.0

60.0

1.5

3.0

4.5

6.0

7.5

9.0

10.5

12.0

13.5

15.0

120

180

240

300

360

420

480

540

600

105

120

135

150

300

600

900

1200

1500

1800

2100

2400

2700

3000

150

225

300

375

450

525

600

675

750

A, B, or V

208

4, 7

4.0

8.0

12.0

16.0

20.0

24.0

28.0

32.0

36.0

40.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

5, 8

120.

160

200

240

280

320

360

400

100

6, 9

200

400

600

800

1000

1200

1400

1600

1800

2000

100

150

200

250

300

350

400

450

500

C, D, or E

208

4, 7

12.0

24.0

36.0

48.0

60.0

72.0

84.0

96.0

108.0

120.0

3.0

6.0

9.0

12.0

15.0

18.0

21.0

24.0

27.0

30.0

5, 8

120

240

360

480

600

720

840

960

1080

1200

120

150

180

210

240

270

300

6, 9

600

1200

1800

2400

3000

3600

4200

4800

5400

6000

150

300

450

600

750

900

1050

1200

1350

1500

Accuracy

Instantaneous: <80 ms (60 Hz) or <100 ms, (50 Hz) up to a real power

magnitude of 2 times the setting Definite: ±5 percent or 50 ms, whichever is greater Inverse: +5 percent or 50 ms, whichever is greater

NOTE: Operating time is repeatable within 2% or 50 ms

(whichever is greater) for any combination of time dial and power

settings within the specified operating temperature range.

Power Range (Pickup)

The power pickup range is adjustable over the ranges listed in Table 1-4.

Table 1-4. Power Pickup Ranges

Sensing

1-phase

3-phase

1-phase

240

3-phase

240

Type Tests

Dielectric Strength

Tested in accordance with IEC 60255-5 and IEEE C37.90. Withstands the following tests.

All circuits to ground: 2,121 Vdc Input to output circuits: 1,500 Vac or 2121 Vdc

Surge Withstand Capability (SWC)

Qualified to IEEE C37.90.1-1989, Standard Surge Withstand Capability (SWC) Tests for Protective Relays and Relay Systems

9171100990 Rev R BE1-32R, BE1-32O/U General Information 1-13

Radio Frequency Interference

Maintains proper operation when tested for interference in accordance with IEEE C37.90.2-1987,

Standard Withstand Capability of Relay Systems to Radiated Electromagnetic Interference from Transceivers.

Shock

In standardized testing, the relay has withstood 15 G in each of three mutually perpendicular planes without structural damage or degradation of performance.

Vibration

In standardized testing, the relay has withstood 2 G in each of three mutually perpendicular planes, swept over the range of 10 to 500 Hz for a total of six sweeps, 15 minutes each sweep, without structural damage or degradation of performance.

UL Recognition

Recognized per Standard 508, file number E97033. Note: Output contacts are not UL recognized for voltages greater than 250 volts.

GOST-R

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

Temperature

Operating: –40°C to 70°C (–40°F to 158°F) Storage: –65°C to 100°C (–85°F to 212°F)

Weight

S1 Configuration: 13.5 lb (6.12 kg) maximum M1 Configuration: 18.5 lb (8.39 kg) maximum

1-14 BE1-32R, BE1-32O/U General Information 9171100990 Rev T

SECTION 2 • CONTROLS AND INDICATORS

INTRODUCTION

All BE1-32R and BE1-32O/U controls and indicators are located on the front panel. The controls and indicators are shown in Figure 2-1 and described in Table 2-1. Figure 2-1 illustrates a relay with the maximum number of controls and indicators. Your relay may not have all of the controls and indicators shown here.

Figure 2-1. Controls and Indicators

9171100990 Rev T BE1-32R, BE1-32O/U Controls and Indicators 2-1

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