ABB CIRCUIT SHIELD 437W Series Manual de usuario

ABB

MP

IB

7.8

.

1.7

-

1

Issue

C

INSTRUCTIONS

Reverse

Power

Relay

©

CIRCUIT

$

SHIELD

TYPE

32

R

Catalog

Series

437

W

/

437

G

Drawout

Test

Case

Catalog

Series

437

P

/

437

F

Drawout

Test

Case

Catalog

Series

237

P

/

237

F

Standard

Case

ajygjJgJT

^

irTowER

R

£

t A

>

.

,

tfRCUIT

15

TARGET

TRIP

0.5

1

'

TEST

P

i

1

m

*

0

E

‘

.

A

'

S

£

'

ria

P

,

CKUP

AMP

OCEINITt

CURVE

;

CONTROL

MEASURE

,

‘

4

/

M

<

fX

WOir

.

M

«

t

TY

PE

•

S

.

i

/

PM

'

5

*

7

g

.

lT

'

I

CAT

I

B

Courtesy of NationalSwitchgear.com

Reverse

Power

Relay

IB

7.8

.

1.7

-

1

Page

2

TABLE

OF

CONTENTS

Introduction

Precautions

Placing

the

Relay

into

Service

Application

Data

Testing

Obsolete

Units

Page

2

Page

2

Page

3

Page

4

Page

12

Page

15

INTRODUCTION

These

instructions

contain

the

information

required

to

properly

install

,

operate

,

and

test

the

ABB

Circuit

-

Shield

Type

32

R

Reverse

Power

Relay

,

catalog

series

237

P

,

437

P

,

237

F

,

437

F

,

437

W

,

and

437

G

.

The

relay

is

housed

in

a

case

suitable

for

conventional

semiflush

panel

mounting

.

All

connections

to

the

relay

are

made

at

the

rear

of

the

case

and

are

clearly

numbered

.

The

437

series

relays

provide

totally

drawout

construction

with

integral

test

facilities

.

Current

transformer

shorting

is

accomplished

by

a

direct

-

acting

spring

and

blade

assembly

upon

removal

of

the

relay

from

its

case

.

Sequenced

disconnects

prevent

nuisance

tripping

during

withdrawal

or

insertion

of

the

relay

if

the

normally

closed

contact

is

used

in

the

application

.

The

237

series

relays

are

of

partial

drawout

construction

,

with

the

input

transformers

remaining

in

the

case

upon

withdrawal

of

the

lower

circuit

board

.

Most

settings

are

made

on

the

front

panel

of

the

relay

,

behind

a

removable

clear

plastic

cover

.

The

target

is

reset

by

means

of

a

pushbutton

extending

through

the

cover

.

PRECAUTIONS

The

following

precautions

should

be

taken

when

applying

these

relays

.

Be

sure

wiring

agrees

with

the

connection

Incorrect

wiring

may

result

in

damage

,

diagram

for

the

particular

relay

before

energizing

.

1

.

Apply

only

the

rated

voltage

marked

on

the

relay

front

panel

.

For

units

rated

for

2

.

use

with

dc

control

power

,

the

proper

polarity

must

be

observed

.

For

units

with

dual

-

rated

control

voltage

,

the

control

voltage

selector

plug

located

on

the

lower

circuit

board

must

be

placed

in

the

correct

position

for

the

system

control

voltage

.

boards

must

be

separated

to

gain

access

to

the

plug

.

3

.

On

earlier

437

series

units

the

upper

and

lower

circuit

4

.

For

catalog

series

237

units

,

16

to

terminal

G

.

a

shorting

link

or

jumper

is

required

from

terminal

This

is

not

used

on

series

437

units

.

Do

not

use

excessive

force

.

Drawout

elements

should

insert

in

the

case

smoothly

.

5

.

6

.

High

voltage

insulation

tests

are

not

recommended

.

A

high

-

pot

test

was

performed

on

the

relay

at

the

factory

.

See

section

on

Testing

for

additional

information

.

Follow

test

instructions

to

verify

that

the

relay

is

in

proper

working

order

.

7

.

Caution

:

since

troubleshooting

entails

working

with

energized

equipment

,

care

should

be

taken

to

avoid

personal

shock

.

Only

competant

technicians

familiar

with

good

safety

practices

should

service

these

devices

.

PLACING

THE

RELAY

INTO

SERVICE

1

.

RECEIVING

.

HANDLING

.

STORAGE

Upon

receipt

of

the

relay

(

when

not

included

as

part

of

a

switchboard

)

examine

for

shipping

damage

.

notify

your

ABB

representative

or

the

factory

.

Use

normal

care

in

handling

to

avoid

mechanical

damage

.

Keep

clean

and

dry

.

If

damage

or

loss

is

evident

,

file

a

claim

at

once

and

promptly

Courtesy of NationalSwitchgear.com

Reverse

Power

Relay

IB

7.8

.

1.7

-

1

Page

3

2

.

INSTALLATION

Mounting

:

The

outline

dimensions

and

panel

drilling

and

cutout

information

is

given

in

Fig

.

1

.

Connections

:

Internal

Figures

3

and

4

.

connections

are

shown

in

Fig

.

2

.

Typical

external

connections

are

shown

in

These

relays

have

metal

front

panels

which

are

connected

through

printed

circuit

board

runs

and

connector

wiring

to

a

terminal

at

the

rear

of

the

relay

case

.

The

terminal

is

marked

"

GM

.

In

all

applications

this

terminal

should

be

wired

to

ground

.

External

Shorting

Link

(

237

P

/

237

F

series

only

)

:

required

from

terminal

16

to

terminal

G

.

section

on

Testing

,

for

purpose

of

this

link

,

series

437

series

units

.

a

shorting

1

ink

or

jumper

is

See

paragraph

on

High

Potential

Tests

,

This

connection

is

not

required

on

For

units

with

dc

control

power

rating

,

proper

polarity

must

be

observed

when

connecting

to

terminals

7

and

8

.

For

units

rated

for

ac

control

power

,

an

internal

isolation

transformer

is

used

,

so

polarity

need

not

be

observed

.

Control

Voltage

Selector

Plug

:

Apply

only

the

rated

control

voltage

marked

on

the

front

panel

of

the

relay

.

For

relays

with

dual

-

rated

control

voltage

,

the

control

voltage

selector

plug

located

on

the

lower

circuit

board

must

be

placed

in

the

correct

position

for

the

system

control

voltage

.

For

units

rated

for

use

on

120

vac

control

(

if

the

factory

has

not

used

a

soldered

jumper

)

the

plug

must

be

placed

in

the

24

/

48

vdc

position

:

a

transformer

-

rectifier

circuit

on

the

upper

board

converts

the

120

vac

to

dc

,

the

value

depending

on

the

model

.

For

relays

rated

for

use

on

110

vdc

,

the

plug

should

be

placed

in

the

125

vdc

position

if

not

specifically

marked

110

.

On

437

series

units

rated

24

or

32

vdc

,

an

inverter

on

the

upper

circuit

board

converts

the

voltage

to

48

vdc

.

The

plug

on

the

lower

board

should

be

in

the

48

vdc

position

if

a

soldered

jumper

is

not

used

.

On

earlier

versions

of

the

437

series

units

,

be

separated

to

gain

access

to

the

plug

.

the

upper

and

lower

circuit

boards

must

See

section

on

Testing

for

the

procedure

.

Phase

-

shift

Selector

Plug

:

An

internal

selector

plug

is

provided

to

set

the

relay

’

s

internal

phase

shift

to

30

°

lower

printed

See

connection

diagrams

for

notes

on

the

The

or

0

°

.

(

Not

provided

on

earlier

237

P

/

237

F

/

437

P

/

437

F

series

units

with

circuit

boards

612289

-

003

,

-

002

,

-

001

.

)

proper

placement

of

this

plug

.

See

circuit

board

layouts

for

location

of

plug

,

upper

and

lower

circuit

boards

will

have

to

be

separated

on

some

models

to

inspect

or

position

this

link

.

Circuit

Board

Interconnection

Cable

used

to

be

sure

that

the

cable

connectors

are

properly

positioned

and

seated

at

both

ends

.

(

437

W

/

437

G

series

only

)

:

connect

the

upper

and

lower

printed

circuit

boards

on

these

units

.

a

3

conductor

cable

is

to

Inspect

3

.

SETTINGS

237

P

/

237

F

/

437

P

/

437

F

Series

Units

(

Current

Directional

Types

)

Pickup

:

A

pickup

dial

is

provided

so

that

the

sensitivity

of

the

relay

to

power

reversal

can

be

adjusted

to

fit

the

application

.

Pickup

is

continuously

adjustable

from

approxi

-

mately

0.025

amperes

to

0.7

amperes

.

Time

Delay

:

The

Type

32

R

is

provided

with

a

time

delay

on

pickup

.

The

delay

on

standard

units

is

continuously

adjustable

from

1

to

30

seconds

(

definite

time

characteristic

)

.

time

delay

should

be

set

to

the

time

needed

to

prevent

nuisance

operations

due

to

temporary

self

-

correcting

power

reversals

.

Relays

with

non

-

standard

delay

ranges

will

be

marked

appropriately

.

The

437

W

/

437

G

Series

Units

(

Power

Measurement

Types

)

Pickup

:

A

continuously

adjustable

pickup

dial

is

provided

to

set

the

sensitivity

of

the

relay

to

power

flow

.

is

non

-

linear

to

provide

greater

resolution

at

the

more

sensitive

settings

,

and

can

be

set

by

test

if

desired

.

The

approximate

range

will

be

marked

on

the

front

panel

.

The

dial

Courtesy of NationalSwitchgear.com

Reverse

Power

Relay

IB

7.8

.

1.7

-

1

Page

4

437

W

/

437

G

Settings

(

continued

)

Time

Delay

:

The

437

W

/

437

G

series

is

provided

with

a

time

delay

on

pickup

.

An

internal

link

must

be

positioned

to

set

the

timing

function

for

a

definite

-

time

characteristic

or

for

an

inverse

characteristic

.

The

definite

delay

on

standard

units

is

continuously

adjus

-

The

inverse

characteristic

curve

is

shown

in

Figure

6

.

table

from

1

to

30

seconds

.

Relays

with

non

-

standard

delays

will

be

marked

appropriately

.

The

time

delay

should

be

set

to

the

time

needed

to

prevent

nuisance

operations

due

to

temporary

self

-

correcting

power

reversals

.

A

setting

of

10

-

15

seconds

is

typical

.

4

.

INDICATORS

LED

Pickup

Indicator

:

A

1

ight

-

emitting

-

diode

pickup

indicator

is

provided

to

assist

in

testing

and

to

provide

operating

personnel

with

information

on

the

status

of

the

relay

.

This

can

be

especially

helpful

when

placing

the

relay

into

service

and

making

initial

settings

.

The

relay

’

s

timer

will

be

timing

when

this

indicator

lights

,

and

if

the

condition

persists

,

the

relay

will

operate

.

If

the

indicator

is

flashing

on

and

off

,

system

conditions

are

near

the

relay

’

s

operating

threshold

,

however

,

the

timer

is

reset

whenever

the

led

goes

out

,

and

a

relay

operation

will

not

occur

.

Target

Indicator

:

When

the

relay

’

s

output

contacts

transfer

to

trip

the

breaker

,

the

target

indicator

is

signalled

electronically

to

set

and

display

orange

.

The

target

retains

indication

even

on

loss

of

control

voltage

,

and

must

be

reset

manually

.

In

order

to

reset

the

target

,

control

power

must

be

present

and

the

inputs

to

the

relay

below

pickup

.

APPLICATION

DATA

The

most

common

application

for

ABB

Type

32

R

relays

is

the

reverse

power

(

anti

-

motoring

)

protection

of

a

generator

and

its

prime

-

mover

.

The

maginitude

of

power

required

to

motor

the

generator

varies

widely

depending

on

the

type

of

prime

mover

(

diesel

,

gas

turbine

,

etc

.

)

These

relays

provide

wide

sensitivity

ranges

and

high

continuous

ratings

to

allow

full

use

of

the

sensitivity

.

Only

one

single

-

phase

relay

is

required

in

this

application

,

as

the

reverse

power

will

be

essentially

equal

in

all

phases

.

A

relay

setting

of

20

-

50

%

of

the

power

required

to

motor

the

particular

machine

being

protected

is

suggested

,

override

temporary

self

-

correcting

power

synchronizing

,

should

be

set

.

A

time

delay

sufficient

to

reversals

,

such

as

occur

during

A

typical

setting

would

be

15

seconds

.

Catalog

Series

237

P

/

237

F

/

437

P

/

437

F

:

Relays

in

this

series

are

current

-

directional

relays

,

rather

than

true

power

measurement

types

.

The

operating

characteristic

is

shown

in

Figure

5

.

An

advantage

of

this

type

of

unit

is

that

its

sensitivity

to

current

magnitude

and

direction

does

not

change

with

the

magnitude

of

polarization

voltage

.

Although

the

normal

polarization

voltage

to

the

relay

is

120

vac

,

the

relay

will

be

fully

polarized

at

voltages

down

below

10

volts

.

An

internal

phase

-

shift

circuit

provides

the

30

degree

shift

required

so

the

line

-

to

-

line

polarization

voltage

can

be

properly

compared

in

phase

to

the

line

current

.

(

If

the

phase

A

-

to

-

neutral

voltage

is

used

,

the

internal

phase

-

shift

link

should

be

set

to

0

°

,

rather

than

30

°

.

)

For

unity

power

factor

conditions

,

the

three

-

phase

kilowatts

to

cause

relay

operation

can

be

estimated

by

the

following

calculation

:

/

3

*

V

*

I

*

N

where

KW

V

=

system

line

to

line

voltage

in

kilovolts

.

I

=

relay

pickup

setting

in

amperes

.

CT

ratio

.

N

An

adjustable

definite

-

time

delay

characteristic

with

a

range

of

1

to

30

seconds

is

provided

on

standard

units

.

For

unusual

applications

,

special

time

ranges

including

instantaneous

operation

can

be

provided

.

Contact

the

factory

.

Reverse

VAR

Detection

:

If

this

model

is

connected

as

shown

in

Figure

4

,

and

set

-

up

with

an

internal

0

°

phase

-

shift

,

it

becomes

a

reverse

var

detector

,

used

for

loss

-

of

-

field

protection

in

installations

where

the

cost

of

an

impedance

type

relay

,

such

as

the

ABB

Type

40

,

can

not

be

justified

,

application

.

Catalog

series

437

W

/

437

G

units

are

now

preferred

for

this

Courtesy of NationalSwitchgear.com

Reverse

Power

Relay

IB

7.8

.

1.7

-

1

Page

5

Catalog

Series

437

W

/

437

G

:

Relays

of

this

series

are

"

true

"

directional

power

relays

in

that

they

measure

according

to

the

formula

:

power

P

V

*

I

*

cos

0

These

relays

may

be

used

for

the

anti

-

motoring

protection

of

generators

,

preferred

in

cases

where

significant

third

-

harmonic

current

may

be

present

,

relay

may

be

used

in

any

application

where

an

action

must

be

taken

at

a

set

power

level

;

for

example

,

on

a

tie

between

2

systems

where

power

flow

is

to

be

restricted

to

,

or

an

alarm

sounded

at

,

a

certain

level

in

one

direction

.

and

are

The

An

internal

link

is

provided

which

allows

the

relay

to

be

set

up

for

a

maximum

torque

angle

of

either

:

I

lag

V

by

0

degrees

;

or

,

I

lag

V

by

30

degrees

.

30

degree

position

,

the

1

ine

-

to

-

1

ine

input

voltage

is

internally

adjusted

by

a

1

/

s

/

J

factor

to

maintain

the

correct

scaling

for

single

-

phase

watts

.

When

set

in

the

Typical

connections

for

reverse

power

detection

are

shown

in

Figure

3

.

series

relays

may

be

reconnected

to

provide

reverse

VAR

detection

,

as

shown

in

Fig

4

.

437

W

/

437

G

437

W

/

437

G

series

relays

include

an

internal

link

to

select

timer

operation

to

have

a

definite

-

time

characteristic

,

or

to

have

an

inverse

timing

characteristic

.

The

definite

delay

is

adjustable

1

-

30

seconds

.

The

inverse

characteristic

is

shown

in

Figure

6

.

16

D

237

C

32

R

Std

.

Case

6.38

AB

Al

oE

o

5

O

4

03

T

l

212.8

1.22

6.53

6.68

31

165.9

C

t

174.8

0.63

PANEL

16

Jol

$

IH

$

13

$

12

On

X

4.88

J

OIG

Ois

124

q

T

2.44

Catalog

Series

237

P

/

237

F

62

H

x

SIOE

VIEW

FRONT

VIEW

(

4

)

OlA

.

HOLES

4

e

7

n

&

f

]

5

n

4

n

3

fi

£

fi

0

00

0

i

16

D

437

A

32

R

Test

Case

0

2.06

52.3

PANEL

CUTOUT

®

[

0

H

0

II

0

I

G

U

16

U

15

U

14

U

0

00

3.68

13

M

2

UU

10

9

93.5

£

1

OB

OS

OH

03

02

ol

i

LSi

2

_

06

*

6

,

-

7

52.3

DRAWOUT

TEST

CASE

STUD

NUMBERS

(

BACK

VIEW

)

G

J

7

°

4

i

3.19 3.19

PQL

.

m

6

IH

613

612

on

6

ID

4

q

31

81

3.31

NOTE

:

DIMENSIONS

ARE

SHOWN

AS

84

1

6.62

OlG

O

15

168.1

Figure

1

:

Relay

Outline

and

Panel

Drilling

Catalog

Series

437

P

/

437

F

JL

6

D

437

B

32

R

Test

Case

16

D

437

C

32

R

Test

Case

+

OB

o

5

O

4

03

T

(

SB

Al

oB

o

5

O

4

03

TT

O

1

c

r

°

r

-

H

-

ii

-

H

-

:

JT

°

jpi

ri

4

m

on

4

i

2

on

4

io

6

q

ri

o

oi

4

613

612

on

6

io

Oq

L

is

OlG

Ois

EXTERNAL

RESISTOR

SUPPLIED

WITH

RELAY

.

CONTACT

IS

-

1

H

CONVERTIBLE

.

CONTACT

li

-

lH

CONVERTIBLE

.

Catalog

Series

437

W

/

437

G

Catalog

Series

437

W

/

437

G

Figure

2

:

Internal

Connection

Diagrams

Courtesy of NationalSwitchgear.com

Reverse

Power

Relay

IB

7.8

.

1.7

-

1

Page

6

CHARACTERISTICS

OF

COMMON

UNITS

Internal

Connections

16

D

437

A

Current

Directional

Types

Type

32

R

Catalog

Numbers

Test

Case

Package

60

Hertz

50

Hertz

Max

.

Cont

.

Current

Max

.

Contin

.

Voltage

Max

.

Torque

Angle

Pickup

Range

Time

Delay

Control

Voltage

48

/

125

vdc

48

/

110

vdc

24

/

32

vdc

220

vdc

250

vdc

120

vac

437

P

4671

437

P

4601

437

P

4691

437

P

4621

437

P

4651

437

P

4661

437

F

4671

437

F

4601

437

F

4691

437

F

4621

437

F

4651

437

F

4661

I

lag

V

30

deg

.

1

-

30

sec

.

0.025

A

-

0.7

A

10

A

160

V

a

•

e

N

o

t

•

2

Notes

:

1

.

Series

237

P

/

237

F

have

the

same

electrical

characteristics

as

corresponding

437

P

/

437

F

shown

above

,

and

internal

connections

per

16

D

237

C

.

in

the

drawout

-

test

-

case

are

preferred

for

new

installations

due

to

their

improved

testing

features

.

437

series

units

2

.

These

units

now

include

an

internal

link

that

allows

the

maximum

torque

angle

to

be

set

for

either

30

°

or

0

°

,

I

lag

V

.

Earlier

versions

had

a

fixed

angle

of

30

°

(

last

digit

in

catalog

number

=

1

)

,

or

0

°

(

last

digit

in

catalog

number

=

2

)

.

Power

Directional

Types

Type

32

R

Catalog

Numbers

Test

Case

Package

60

Hertz

50

Hertz

Nominal

Rated

Voltage

*

Max

.

Cont

.

Current

Time

Delay

Pickup

Range

437

W

48

X

0

437

G

48

X

0

1

-

30

sec

.

10

A

5

-

60

Watts

120

v

437

W

78

X

0

437

G

78

X

0

1

-

30

sec

.

208

v

10

A

9

-

104

Watts

437

W

47

X

0

437

G

47

X

0

1

-

30

sec

.

10

A

13

-

150

Watts

120

V

437

W

77

x

0

437

G

77

X

0

1

-

30

sec

.

10

A

22

-

260

Watts

208

v

437

W

46

X

0

437

G

46

xO

1

-

30

sec

6

A

1

.

7

-

20

Watts

120

v

437

W

76

X

0

437

G

76

X

0

1

-

30

sec

6

A

3

-

35

Watts

208

v

VOLTAGE

DIGIT

SELECTION

CHART

(

437

W

or

437

G

series

units

)

:

each

of

the

catalog

numbers

listed

above

contains

an

"

x

”

for

the

control

voltage

designation

.

To

complete

the

catalog

number

you

must

replace

the

’

xf

with

the

proper

control

voltage

digit

shown

in

the

table

below

.

diagram

is

the

control

voltage

,

and

is

also

given

below

.

The

internal

connection

Internal

Connections

Code

Digit

for

>

,

x

”

Control

Voltage

24

vdc

32

vdc

48

/

125

vdc

48

/

110

vdc

220

vdc

250

vdc

120

vac

16

D

437

C

16

D

437

C

16

D

437

B

16

D

437

B

16

D

437

B

16

D

437

B

16

D

437

C

9

8

7

0

2

5

6

Other

Notes

_

for

437

W

/

437

G

Series

Units

:

with

#

Max

torque

angle

internally

adjustable

0

°

I

lag

V

,

or

30

°

I

lag

V

,

selector

link

.

Watts

are

1

ine

-

to

-

neutral

value

(

see

page

5

)

.

internal

selector

link

provided

for

inverse

delay

*

Definite

-

time

;

Figure

6

.

see

Courtesy of NationalSwitchgear.com

Reverse

Power

Relay

IB

7.8

.

1.7

-

1

Page

7

SPECIFICATIONS

:

INPUT

CIRCUIT

RATINGS

:

120

Vac

,

nominal

rating

:

208

Vac

,

nominal

rating

:

Potential

160

Vac

,

max

continuous

.

270

Vac

,

max

continuous

.

continuous

:

see

charts

page

6

.

390

amperes

,

1

second

(

10

amp

rated

units

)

200

amperes

,

1

second

(

6

amp

rated

units

)

Current

INPUT

CIRCUIT

BURDEN

:

Potential

Current

0.3

VA

at

120

vac

.

less

than

1

VA

at

5

Amperes

.

see

charts

on

page

6

.

SENSITIVITY

:

MAXIMUM

TORQUE

ANGLE

:

internal

link

to

set

30

°

or

0

°

IOP

lag

VPOL

.

standard

units

adjustable

1

to

30

seconds

,

definite

time

.

(

Consult

factory

if

special

range

required

.

)

OPERATING

TIME

:

437

W

/

437

G

series

units

also

include

link

to

select

inverse

delay

,

see

Figure

6

.

models

available

for

:

48

/

125

vdc

at

0.05

ampere

typ

.

standby

.

48

/

110

vdc

at

0.05

ampere

24

/

32

vdc

at

0.05

ampere

24

vdc

at

0.12

ampere

32

vdc

at

0.10

ampere

220

vdc

at

0.05

ampere

250

vdc

at

0.05

ampere

120

vac

at

0.05

ampere

CONTROL

POWER

:

(

437

P

/

437

F

)

(

437

W

/

437

G

)

(

437

W

/

437

G

)

allowable

variation

:

units

rated

110

vdc

and

above

:

+

12

%

/

-

20

%

.

units

rated

48

vdc

and

below

:

+

/

-

20

%

.

9250

vdc

OUTPUT

CIRCUIT

RATINGS

:

each

contact

91

25

vdc

9120

vac

Tripping

:

Continuous

:

Opening

Inductive

:

30

amps

30

amps

30

amps

5

0.3

0.1

2

TEMPERATURE

RANGE

:

-

20

deg

C

to

+

70

deg

C

.

Repeatability

over

temperature

range

:

237

P

/

237

F

/

437

P

/

437

F

operating

characteristic

:

+

/

-

5

degrees

.

pickup

current

at

1.0

PF

:

+

/

-

5

%

.

time

delay

:

greater

of

+

/

-

5

%

or

+

/

-

20

ms

.

437

W

/

437

G

pickup

at

1.0

PF

:

+

/

-

5

%

.

time

delay

:

+

/

-

8

%

.

2000

vac

rms

,

50

/

60

Hz

.

,

60

seconds

,

all

circuits

to

ground

.

DIELECTRIC

STRENGTH

:

Courtesy of NationalSwitchgear.com

Reverse

Power

Relay

IB

7.8

.

1.7

-

1

Page

8

TYPICAL

CONNECTIONS

FOR

THE

REVERSE

POWER

PROTECTION

OF

GENERATORS

FIGURE

3

:

a

TYPICAL

CONTROL

CONNECTIONS

237

P

/

237

F

b

+

12

I

C

X

32

R

Phase

Sequence

a

-

b

-

c

T

A

7

5

2

13

O

+

1

CONTROL

POWER

52

a

16

G

9

o

—

o

—

l

O

8

52

—

11

ri

+

TC

32

R

10

TYPICAL

CONTROL

CONNECTIONS

437

P

/

437

F

+

12

i

'

Z

0

H

32

R

H

T

0

H

A

7

13

u

+

I

-

A

CONTROL

POWER

2

H

+

?

1

T

*

G

32

R

O

8

52

V

L

EL

SI

TC

2

J

:

OTHER

RELAYS

TYPICAL

CONTROL

CONNECTIONS

437

W

/

437

G

+

121

32

R

T

4

7

11

-

J

+

1

..

Pickup

CONTROL

POWER

Vab

T

G

*

Si

J

TC

O

8

Cr

~

L

s

7

INTERNAL

LINK

SET

ON

30

DEG

Van

Trip

Sector

General

Notes

:

1

.

If

phase

-

sequence

is

A

-

C

-

B

,

connect

32

R

terminal

10

to

phase

C

potential

,

rather

than

to

phase

B

as

shown

above

.

2

.

If

the

potential

transformers

are

connected

Y

-

Y

instead

of

open

-

delta

as

shown

,

relay

may

be

connected

phase

a

-

to

-

neutral

if

the

internal

maximum

-

torque

-

angle

selector

plug

is

set

for

0

°

.

Notes

for

437

W

/

437

G

series

units

only

:

A

.

For

connection

shown

,

with

internal

link

on

30

degree

position

,

power

measured

is

per

the

formula

:

Single

-

phase

Watts

=

(

V

9

-

1 0

/

\

/

3

)

*

11

-

2

*

cos

fK

B

.

If

the

internal

link

is

set

on

the

0

°

position

the

measurement

is

per

the

formula

:

Single

-

phase

Watts

=

V

9

-

1 0

*

I

1

-

2

*

cos

-

6

-

.

Courtesy of NationalSwitchgear.com

Reverse

Power

Relay

IB

7.8

.

1.7

-

1

Page

9

FIGURE

4

:

TYPICAL

CONNECTION

FOR

REVERSE

VAR

DETECTION

a

TYPICAL

CONTROL

CONNECTIONS

237

P

/

237

F

.

b

+

i

C

12

32

R

Phase

Sequence

a

-

b

-

c

0

7

5

2

13

+

CONTROL

POWER

52

a

16

Q

8

Q

—

Q

—

[

32

—

(

1

*

1

TC

»

i

»

i

9

X

32

R

TYPICAL

CONTROL

CONNECTIONS

437

P

/

437

F

+

i

ie

12

§

H

32

R

H

0

6

7

13

+

A

CONTROL

POWER

52

91

a

0

32

R

O

8

52

V

hM

TC

2

X

OTHER

RELAYS

TYPICAL

CONTROL

CONNECTIONS

437

W

/

437

G

+

12

32

R

6

7

11

CONTROL

POWER

52

a

IaPl

,

0

PF

G

»

Q

8

CXL

Pi

ok

up

32

INTERNAL

LINK

SET

ON

0

DEG

TC

V

_

^

/

“

Trip

w

Sector

General

Note

:

1

.

Catalog

Series

437

W

/

437

G

preferred

for

this

application

.

2

.

If

phase

sequence

is

A

-

C

-

B

,

reverse

the

connections

at

terminals

9

and

10

of

the

relay

.

Notes

for

437

W

/

437

G

series

units

only

:

A

.

For

connection

shown

,

with

internal

link

on

0

degree

position

,

VARS

measured

per

the

formula

:

Single

-

phase

VARS

=

V

9

-

1 0

*

1 1

-

2

*

cos

0

where

6

is

the

angle

between

I

*

and

VBC

.

»

Courtesy of NationalSwitchgear.com

Reverse

Power

Relay

IB

7.8

.

1.7

-

1

Page

10

437

P

/

F

,

237

P

/

F

Series

Units

Operating

Characteristic

Figure

5

:

Current

-

Directional

L

.

o

z

2.0

VO

H

U

H

J

H

0

-

W

VO

H

J

W

3

2

1.5

H

z

H

Z

H

W

H

1.0

>

b

<

2

H

U

»

Q

W

0.5

U

z

u

H

*

H

0

10

11

12

13

14

9

8

6

7

5

3

4

2

1

MULTIPLES

OF

PICKUP

Timing

Characteristic

For

437

W

/

437

G

Series

Units

with

Timing

Selector

Link

in

the

INV

(

inverse

)

Position

.

Figure

6

:

Courtesy of NationalSwitchgear.com

ABB CIRCUIT SHIELD 437W Series Manual de usuario

Manuales populares de Relé de otras marcas