GE HFA151 Manuale utente

GEK

45484

INSTRUCTIONS

MULTI

CONTACT

AUXILIARY

RELAY

TYPE

HFA

151

Protection

and

Control

205

Great

Valley

Parkway

Malvern

19355

1337

Courtesy of NationalSwitchgear.com

GEK

45484

CONTENTS

PAGE

DESCRIPTION

APPLICATION

RATINGS

CHARACTERISTICS

BURDENS

CONSTRUCTION

RECEIVING

HANDLING

AND

STORAGE

ACCEPTANCE

PICKUP

INSTALLATION

MOUNTING

AND

CONNECTIONS

MECHANICAL

CHECK

ELECTRICAL

TESTS

PERIODIC

CHECKS

AND

ROUTINE

MAINTENANCE

SERVICING

CONTACT

CLEANING

PICKUP

CONTACT

ADJUSTMENT

RENEWAL

PARTS

These

instructions

not

purport

cover

all

details

variations

equipment

nor

provide

for

every

possible

contingency

met

connection

with

installation

operation

maintenance

Should

further

information

desired

should

particular

problems

arise

which

are

not

covered

sufficiently

for

the

purchaser

’

purposes

the

matter

should

referred

the

General

Electric

Company

the

extent

required

the

products

described

herein

meet

applicable

ANSI

IEEE

and

NEMA

standards

;

but

such

assurance

given

with

respect

local

codes

and

ordinances

because

they

vary

greatly

Courtesy of NationalSwitchgear.com

GEK

45484

MULTI

CONTACT

AUXILIARY

RELAY

TYPE

HFA

151

DESCRIPTION

The

HFA

151

relays

are

instantaneous

hinged

armature

multi

contact

auxiliary

relays

They

have

six

electrically

separate

contact

circuits

adaptable

for

either

circuit

opening

circuit

closing

application

This

arrangement

permits

number

operations

performed

simultaneously

The

internal

connection

diagram

for

HFA

151

relays

shown

Figure

The

HFA

151

relays

are

available

back

connected

semi

flush

mounted

relays

HFA

151

(

)

and

HFA

151

(

)

and

front

connected

surface

mounted

relays

HFA

151

(

)

and

HFA

151

(

)

The

outline

and

panel

drilling

diagrams

for

the

HFA

151

relays

are

shown

Figures

and

The

operating

coils

are

specially

designed

for

long

life

even

when

operated

continuously

near

maximum

ambient

temperature

APPLICATION

The

Type

HFA

151

relays

are

intended

for

application

where

necessary

perform

six

auxiliary

functions

simultaneously

the

operation

single

auxiliary

relay

than

six

circuits

are

controlled

the

coils

two

HFA

relays

may

connected

series

(

only

)

parallel

RATINGS

HFA

151

relays

are

available

with

coil

ratings

for

120

and

240

volts

cycles

and

for

250

volts

The

coils

are

designed

for

long

life

even

when

operated

continuously

near

maximum

ambient

temperature

The

current

closing

rating

each

contact

amperes

The

current

carrying

rating

amperes

continuous

amperes

for

one

minute

Table

lists

the

non

inductive

interrupting

capacity

each

contact

TABLE

VOLTS

AMPERES

VOLTS

AMPERES

115

230

460

575

125

250

Courtesy of NationalSwitchgear.com

GEK

45484

CHARACTERISTICS

The

HFA

151

relay

self

reset

and

has

instantaneous

dropout

The

HFA

151

relay

hand

reset

means

plunger

assembly

installed

through

the

transparent

cover

Unless

the

relays

are

ordered

with

specific

contact

arrangement

they

will

shipped

with

six

circuit

closing

contacts

(

Code

)

The

contact

arrangement

can

easily

changed

provide

any

the

combinations

shown

Table

TABLE

CODE

POSITION

CONTRACT

ARRANGEMENT

a a

b b b

a a

b b

Note

Normally

Open

Normally

Closed

Approximate

pickup

times

normally

open

contact

are

milliseconds

less

for

relays

and

milliseconds

less

for

relays

BURDENS

Burdens

with

the

relay

the

picked

position

and

rated

voltage

are

isted

Tabl

III

TABLE

III

COILS

WATTS

FREQUENCY

(

CYCLES

)

VOLT

AMPERES

COLD

HOT

WATTS

7.8

6.0

CONSTRUCTION

The

HFA

151

(

)

and

HFA

151

(

)

relays

are

assembled

back

connected

case

with

flange

for

semi

flush

mounting

See

Figures

and

The

HFA

151

(

)

and

HFA

151

(

)

are

assembled

front

connected

case

for

surface

mounting

See

Figures

and

;

otherwise

they

are

the

same

the

semi

flush

mounted

relays

They

all

have

six

electrically

separate

contact

circuits

adaptable

for

either

circuit

opening

circuit

closing

application

;

see

Figure

Courtesy of NationalSwitchgear.com

GEK

45484

HFA

151

hand

reset

means

plunger

HFA

151

relay

self

reset

assembly

installed

through

the

transparent

cover

The

contact

circuits

are

opened

and

closed

moving

contact

arms

controlled

hinge

type

armature

which

turn

actuated

operating

coil

and

restrained

adjustable

control

spring

The

long

life

coils

are

capable

continuous

operation

near

maximum

ambient

temperature

RECEIVING

HANDLING

AND

STORAGE

These

relays

when

not

included

part

control

panel

will

shipped

cartons

designed

protect

them

against

damage

Immediately

upon

receipt

relay

examine

for

any

damage

sustained

transit

resulting

from

rough

handling

evident

file

damage

claim

once

with

the

transportation

company

and

promptly

notify

the

nearest

General

Electric

Sales

Offi

injury

damage

Reasonable

care

should

exercised

unpacking

the

relay

order

that

none

the

parts

are

injured

nor

the

adjustments

disturbed

the

relays

are

not

installed

immediately

they

should

stored

their

original

cartons

place

that

free

from

moisture

dust

and

metallic

chips

Foreign

matter

collected

the

outside

the

case

may

find

its

way

inside

when

the

cover

removed

and

cause

trouble

the

operation

the

relay

ACCEPTANCE

Check

the

nameplate

stamping

make

sure

that

the

model

number

and

rating

the

relay

agree

with

the

requisition

Make

sure

that

the

contact

arrangement

agrees

with

the

code

specified

the

requisition

Check

that

there

are

broken

cracked

parts

other

signs

physical

damage

Check

that

the

armature

free

binding

when

operated

hand

PICKUP

The

relays

are

adjusted

the

factory

pick

rating

for

coils

and

rating

for

coils

Normally

these

adjustments

should

not

change

;

necessary

readjust

the

relay

see

the

instructions

the

section

SERVICING

INSTALLATION

MOUNTING

AND

CONNECTIONS

Type

HFA

151

relays

should

mounted

vertical

surface

panel

drilling

diagrams

are

shown

Figures

and

diagram

shown

Figure

The

outline

and

The

internal

connection

Courtesy of NationalSwitchgear.com

GEK

45484

MECHANICAL

CHECK

Check

that

there

are

broken

cracked

parts

other

signs

physical

damage

Check

that

the

armature

free

binding

when

operated

hand

Check

condition

relay

contacts

ELECTRICAL

TESTS

The

relays

are

adjusted

the

factory

pick

rating

for

coils

and

rating

for

coils

After

the

relay

has

been

mounted

should

operated

few

times

certain

that

the

mechanism

operates

freely

that

the

contact

surfaces

align

properly

and

that

self

reset

models

drop

out

quickly

when

the

coil

energized

Check

latching

and

reset

hand

reset

models

PERIODIC

CHECKS

AND

ROUTINE

MAINTENANCE

view

the

vital

role

relays

the

operation

power

system

important

that

periodic

test

program

followed

recognized

that

the

interval

between

periodic

checks

will

vary

depending

upon

environment

type

relay

and

the

user

experience

with

periodic

testing

Until

the

user

has

accumulated

enough

experience

select

the

test

interval

best

suited

his

individual

requirements

suggested

that

the

points

listed

under

INSTALLATION

checked

the

same

schedule

the

associated

protective

relays

maintenance

readjustment

required

see

the

section

SERVICING

CONTACT

CLEANING

For

cleaning

relay

contacts

flexible

burnishing

tool

should

used

This

consists

flexible

strip

metal

with

etched

roughened

surface

resembling

effect

superfine

file

The

polishing

action

delicate

that

scratches

are

left

yet

will

clean

off

any

corrosion

throughly

and

rapidly

Its

flexibility

ensures

cleaning

the

actual

points

contact

not

use

knives

files

abrasive

paper

cloth

any

kind

clean

relay

contacts

PICKUP

The

relays

are

adjusted

the

factory

pick

rating

for

coils

and

rating

for

coils

Normally

these

adjustments

should

not

change

;

necessary

readjust

the

relay

the

armature

adjusting

nut

should

lifted

inch

turned

clockwise

raise

pickup

counter

clockwise

lower

pickup

and

then

reseated

the

hexagonal

groove

the

armature

tailpiece

Courtesy of NationalSwitchgear.com

GEK

45484

CONTACT

ADJUSTMENT

The

contacts

are

adjusted

the

factory

and

normally

should

not

require

readjustment

since

they

are

self

aligning

HFA

151

contact

circuits

can

changed

from

circuit

opening

circuit

closing

vice

versa

removing

the

fixed

contact

turning

over

and

restoring

its

place

for

any

reason

becomes

necessary

readjust

the

contacts

for

instance

contact

changed

from

circuit

opening

circuit

closing

the

following

checks

and

adjustments

should

made

Make

sure

that

all

contact

and

coil

studs

are

tight

Make

sure

that

the

armature

free

binding

when

operated

hand

braided

pigtail

lead

all

contacts

must

adjusted

exert

minimum

force

the

contacts

The

Make

mechanical

contact

adjustments

follows

3.1

Normally

Open

Contacts

Wipe

and

Gap

(

Normally

open

contacts

must

adjusted

before

normally

closed

contacts

)

The

moving

contact

arms

must

adjusted

that

the

normally

open

contacts

make

approximately

simultaneously

(

0.008

)

when

the

relay

operated

hand

All

normally

open

contacts

must

have

wipe

inches

The

contact

gap

must

approximately

inch

This

can

adjusted

follows

)

Insert

0.058

gage

between

the

armature

and

pole

face

and

the

armature

)

Bend

the

left

hand

moving

contact

just

light

the

continuity

lamp

iii

)

Remove

the

0.058

gage

and

bend

the

remaining

moving

contacts

that

all

moving

contacts

make

approximately

the

same

time

)

check

performance

turn

the

stop

screw

until

one

contact

continuity

lamp

lit

Turn

stop

screw

additional

turn

and

all

continuity

lamps

should

lit

Back

off

the

stop

screw

obtain

least

inch

contact

gap

)

Insert

inch

gage

between

any

the

normally

open

moving

and

stationary

contacts

and

turn

the

stop

screw

clockwise

until

the

continuity

lamp

lights

Lock

the

stop

screw

this

position

with

the

locking

nut

3.2

Normally

Closed

Contact

Gap

and

Wipe

The

moving

contact

arms

must

adjusted

that

the

normally

closed

contacts

make

approximately

simultaneously

{

0.008

)

when

the

relay

Courtesy of NationalSwitchgear.com

GEK

45484

operated

hand

The

wipe

and

gap

are

automatically

set

the

formation

the

stationary

contacts

and

the

strength

the

control

spring

Adjustments

can

made

follows

Turn

the

stop

screw

clockwise

until

the

first

normally

closed

contact

opens

)

Turn

the

stop

screw

additional

turn

clockwise

All

normally

closed

contacts

should

open

iii

)

Turn

the

stop

screw

counterclockwise

until

there

approximately

inch

gap

between

the

stop

screw

and

armature

Lock

the

stop

screw

this

position

Recheck

pickup

after

the

above

changes

adjustments

)

RENEWAL

PARTS

recommended

that

sufficient

quantities

renewal

parts

carried

stock

enable

the

prompt

replacement

any

that

are

worn

broken

damaged

When

ordering

renewal

parts

address

the

nearest

Sales

Office

the

General

Electric

Company

specify

quantity

required

name

the

part

wanted

and

the

complete

model

number

the

relay

for

which

the

part

required

Since

the

last

edition

Figure

has

been

changed

Courtesy of NationalSwitchgear.com

GEK

45484

tMmit

iUEmiC

nuns

SUiUTW

Semi

flusb

Mounting

for

With

Flange

cted

Relay

View

)

BacR

eon

(

)

HFM

[

Front

[

8042731

)

Figure

Courtesy of NationalSwitchgear.com

GEK

45484

•

(

Side

View

)

HFA

151

Relay

(

8042732

)

Figure

Courtesy of NationalSwitchgear.com

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