GE MicroVersaTrip AKR-75 Manual de usuario

GEI

86151

Installation

Instructions

Low

Voltage

Power

Circuit

Breakers

Types

AKR

100

Courtesy of NationalSwitchgear.com

Installation

and

Operation

Type

AKR

and

AKR

100

Low

Voltage

Power

Circuit

Breakers

CONTENTS

SECTION

6.0

FUSE

ROLLOUT

ELEMENTS

SECTION

7.0

CONNECTIONS

7.1

Primary

Power

7.2

Secondary

Control

SECTION

1.0

INTRODUCTION

SECTION

2.0

RECEIVING

HANDLING

AND

STORAGE

SECTION

8.0

OPERATION

8.1

General

8.2

Manual

Closing

8.3

Electrical

Closing

8.4

Tripping

8.5

Current

Rating

For

Auxiliary

Devices

SECTION

3.0

INSTALLATION

3.1

Class

Application

3.2

Location

3.3

Mounting

Types

SECTION

4.0

STATIONARY

BREAKERS

SECTION

9.0

MAINTENANCE

9.1

Inspection

9.2

Lubrication

9.3

Reference

Publications

SECTION

5.0

DRAWOUT

BREAKERS

5.1

General

5.2

Code

Letter

AKD

Switchgear

5.2

Breaker

Insertion

5.2

Breaker

Removal

5.3

Code

AKD

Switchgear

5.3

Breaker

Insertion

5.3

Breaker

Removal

5.4

Code

AKR

Substructure

5.4

Breaker

Insertion

5.4

Breaker

Removal

5.5

Code

AKD

Switchgear

5.6

Code

AKD

Switchgear

5.7

Code

AKR

Substructure

SECTION

10.0

INTERCHANGEABILITY

DRAWOUT

BREAKERS

10.1

General

10.2

Letter

AKD

Types

10.3

Code

Types

10.4

Code

Types

10.5

CodeC

Types

10.6

Code

Types

10.7

Code

Types

10.88

Type

Rejection

Courtesy of NationalSwitchgear.com

SECTION

Introduction

These

instructions

describe

the

installation

and

operation

the

AKR

and

AKR

100

frame

size

Low

Voltage

Power

Circuit

Breakers

They

cover

variety

models

which

may

differ

rating

trip

device

and

mounting

type

indicated

Table

MOUNTING

TYPE

FRAME

SIZE

(

Amperes

)

BREAKER

WIDTH

(

Inches

)

PRIMARY

STUD

TYPE

DEEP

ESCUTCHEON

BREAKER

DESIGNATION

DRAWOUT

Stationary

Sub

Structure

600

AKD

250

Bar

AKR

3000

Tube

AKR

(

)

4000

Fingers

AKR

Fingers

AKR

(

)

3200

Fingers

AKR

Fingers

AKR

(

)

Bar

AKR

(

)

Tube

AKR

100

Tube

AKR

(

)

Fingers

AKR

(

)

100

Fingers

AKR

(

)

100

6000

4000

Fingers

AKR

100

Fingers

AKR

(

)

’

Bar

AKR

100

Bar

AKR

100

SPECIAL

BREAKERS

FOR

FIELD

SWITCHING

Tube

ARK

Fingers

AKR

Fingers

AKR

4000

Fingers

AKR

Bar

AKR

Tube

AKR

100

Fingers

AKR

100

Fingers

6000

AKR

100

Fingers

AKR

100

Bar

AKR

100

Bar

AKR

100

Example

AKR

identifies

drawout

substructure

mounted

breaker

equipped

with

the

SST

trip

device

The

trip

devices

are

electro

mechanical

refer

GEI

86157

for

detailed

information

BREAKER

MODELS

(

)

This

digit

identifies

the

trip

device

only

ECS

SST

Hertz

only

MicroVersaTrip

Hertz

only

MicroVersaTrip

RMS

Hertz

only

EPIC

MicroVersaTrip

Plus

and

Hertz

only

For

detailed

information

these

trip

devices

refer

the

following

publication

GEI

86157

Non

automatic

addition

all

non

automatic

250

breaker

types

carry

the

suffix

letter

after

the

frame

number

AKR

Courtesy of NationalSwitchgear.com

SECTION

Installation

Receiving

Handling

and

Storage

3.1

CLASS

APPLICATION

NOTE

Before

installing

Nuclear

Class

application

verify

that

this

product

intended

for

such

use

checking

the

procurement

records

Breakers

with

MicroVersaTrip

Plus

MicroVersaTrip

trip

units

are

not

intended

for

use

Class

applications

Before

installing

operating

these

circuit

breakers

care

fully

read

these

instructions

Upon

receipt

circuit

breaker

immediately

examine

for

any

damage

loss

sustained

shipment

injury

loss

rough

handling

evident

file

damage

claim

once

with

the

transportation

company

and

notify

the

nearest

General

Electric

Sales

Office

Unpack

the

circuit

breaker

soon

possible

after

has

been

received

Exercise

care

unpacking

avoid

damage

the

breaker

parts

sure

that

loose

parts

are

missing

left

the

packaging

material

Blow

out

any

dirt

loose

particles

packaging

material

remaining

the

breaker

the

circuit

breaker

not

placed

service

once

store

clean

dry

location

upright

position

Support

prevent

bending

the

studs

damage

any

the

breaker

parts

not

cover

the

breaker

with

packing

other

material

which

absorbs

moisture

that

may

cause

corrosion

breaker

parts

covering

kraft

other

non

absorbent

paper

will

prevent

dust

from

settling

the

breaker

3.2

LOCATION

choosing

location

for

the

installation

these

breakers

there

are

two

factors

considered

The

first

the

location

environmental

impact

the

breaker

Much

better

performance

and

longer

life

can

expected

the

area

clean

dry

dust

free

and

well

ventilated

The

second

con

venience

for

operation

and

maintenance

The

breaker

should

easily

accessible

the

operator

and

there

should

sufficient

space

available

for

maintenance

work

3.3

MOUNTING

TYPES

AKR

and

100

breakers

are

furnished

both

drawout

and

stationary

construction

The

mounting

type

identified

the

second

middle

digit

the

breaker

nameplate

desig

nation

follows

AKR

(

)

where

(

)

mounting

type

code

letter

per

Table

TABLE

MOUNTING

TYPE

CODES

Breaker

Type

Code

Letter

Drawout

Stationary

None

AKD

Substructure

AKD

Only

AKD

Substructure

AKR

100

(

wide

)

AKR

100

(

wide

)

Courtesy of NationalSwitchgear.com

SECTION

Stationary

Breakers

Drawout

Breakers

5.1

General

5.2

Code

Letter

AKD

Switchgear

5.2

Breaker

Insertion

5.2

Breaker

Removal

5.3

Code

AKD

Switchgear

5.3

Breaker

Insertion

5.3

Breaker

Removal

5.4

Code

AKR

Substructure

5.4

Breaker

Insertion

5.4

Breaker

Removal

5.5

Code

AKD

Switchgear

5.6

Code

AKD

Switchgear

5.7

Code

AKR

Substructure

These

breakers

are

designed

lor

mounting

switch

board

enclosure

designed

and

constructed

others

Mounting

consists

bolting

the

breaker

frame

support

ing

structure

within

the

switchboard

enclosure

connecting

the

power

buses

cables

and

making

any

necessary

con

trol

connections

The

front

cover

the

breaker

enclosure

may

hinged

door

plate

bolted

the

panel

including

cut

out

opening

through

which

the

front

escutcheon

the

breaker

can

protrude

The

surface

which

the

breaker

mounted

must

flat

avoid

internal

distortion

the

breaker

The

supporting

structure

must

rigid

enough

avoid

any

possibility

the

breaker

studs

supporting

the

weight

the

breaker

Minimum

cutout

dimensions

given

the

appropriate

outline

draw

ing

must

maintained

provide

adequate

electrical

clear

ance

Connecting

bus

and

cables

must

rigidly

supported

prevent

undue

stress

the

breaker

terminals

Outline

drawing

numbers

giving

dimensions

for

designing

suitable

enclosure

for

the

stationary

AKR

and

AKR

100

types

are

given

below

TABLE

Outline

Drawing

Stationary

Breaker

Type

Breaker

Width

Manually

Operated

Electrically

Operated

AKR

(

)

139

4560

139

4561

AKR

(

)

100

AKR

(

)

100

139

4562

139

4563

Courtesy of NationalSwitchgear.com

Drawout

Breakers

There

are

three

(

)

distinct

drawout

positions

—

CON

NECTED

TEST

and

WITHDRAWN

Racking

travel

occurs

only

between

the

CONNECTED

position

and

point

just

short

reaching

the

TEST

position

The

compartment

door

must

open

during

racking

5.1

GENERAL

Drawout

breakers

are

manufactured

six

different

styles

identified

Table

the

mounting

code

letters

None

The

“

letter

”

models

are

used

General

Electric

AKD

Switchgear

Code

breakers

were

later

introduced

with

AKD

Switchgear

and

feature

dosed

door

drawout

opera

tion

Code

Band

breakers

provide

alternate

dosed

door

drawout

arrangement

with

the

stationary

element

furnished

preassembied

“

substructure

Code

breakers

are

exclusively

for

AKD

Switchgear

;

they

employ

the

Code

drawout

mechanism

but

have

finger

type

primary

studs

stead

tubular

Code

breakers

were

introduced

with

the

AKD

Switchgear

and

feature

the

Code

dosed

door

drawout

mechanism

The

construction

and

operation

each

these

drawout

styles

covered

under

respective

headings

the

following

text

NOTE

The

Code

and

Code

drawout

types

are

mutually

interchangeable

The

“

letter

”

Code

and

Code

drawout

types

are

mutually

noninterchangeable

Before

attempting

insert

breaker

verify

that

the

breaker

model

matches

the

compartment

The

Code

and

breakers

are

identical

except

for

the

following

Position

indication

label

This

label

mounted

the

sides

the

breaker

’

deep

escutcheon

and

indicates

the

DISCONNECTED

TEST

and

CONNECTED

posi

tions

The

Code

breaker

label

indicates

the

proper

position

only

AKD

switchgear

The

Code

and

breaker

labels

indicate

properly

only

AKR

Substruc

tures

Trip

device

Code

and

breakers

are

factory

sup

plied

with

MicroVersaTrip

trip

units

5.2

BREAKER

INSERTION

Prior

lifting

breaker

its

intended

compartment

location

observe

the

following

precautions

Check

the

compartment

insure

that

free

foreign

objects

Verify

that

the

breaker

the

correct

type

for

that

compartment

Insure

that

the

breaker

OPEN

Apply

thin

fresh

coat

lubricant

the

breaker

primary

disconnects

Insure

that

the

racking

cams

the

breaker

are

correctly

positioned

for

initial

engagement

with

the

pins

the

compartment

this

insert

the

rack

ing

handle

and

rotate

fully

clockwise

compartment

contains

keylock

will

not

cept

the

AKR

100

replacement

breakers

ceived

The

AKR

drawout

mechanism

differs

from

that

its

predecessor

model

causing

the

AKR

breaker

mechanically

interfere

with

the

keylock

during

breaker

insertion

remedy

this

will

necessary

relocate

the

keylock

using

new

mount

ing

hardware

included

modification

kit

tered

the

compartment

accepts

both

and

AKR

types

Using

suitable

lifting

mechanism

and

spreader

rig

position

lifting

hooks

the

cutout

notches

the

top

wrap

around

frames

the

breaker

Exercise

care

avoid

damage

the

control

wiring

Open

the

compartment

door

Keeping

the

rollout

tray

positioned

inside

the

compartment

raise

the

breaker

above

the

elevation

the

tray

Depress

the

test

position

stop

lever

and

pull

the

tray

all

the

way

out

its

WITHDRAWN

position

Lower

the

breaker

over

the

tray

until

about

one

half

inch

above

the

two

dowel

pins

the

tray

Push

the

breaker

back

into

the

compartment

until

the

rear

bottom

flange

the

breaker

rests

against

the

guides

behind

the

dowel

pins

Slowly

lower

and

guide

the

breaker

onto

the

tray

the

holes

the

rear

flange

fit

over

the

two

dowel

pins

When

correctly

positioned

the

dowel

pins

the

breaker

rear

and

side

bottom

flanges

will

rest

firmly

the

tray

Secure

the

breaker

the

tray

inserting

and

tighten

ing

two

inch

hex

head

screws

into

the

front

holes

its

side

flanges

the

breaker

manually

operated

type

push

into

the

compartment

until

the

TEST

position

stop

engages

preventing

further

travel

The

breaker

now

the

TEST

position

Appearance

Code

and

breakers

use

different

color

scheme

their

deep

escutcheons

and

labels

Also

they

have

differently

shaped

manual

operating

handle

5.2

CODE

LETTER

(

AKD

SWITCHGEAR

)

(

Fig

)

These

“

letter

”

AKR

100

models

are

replacements

for

their

and

100

predecessors

AKD

switchgear

The

racking

mechanism

breaker

mounted

and

the

breakers

are

bolted

roller

mounted

tray

arrange

ment

similar

the

BType

(

see

Section

5.4

)

addition

the

characteristics

listed

Table

the

AKD

drawout

has

the

following

unique

aspects

Courtesy of NationalSwitchgear.com

the

breaker

electrically

operated

push

into

the

compartment

until

the

spring

discharge

stop

encountered

Release

this

depressing

the

“

spring

discharge

”

lever

the

bottom

the

breaker

(

see

fig

)

then

continue

pushing

the

breaker

into

the

compartment

until

the

TEST

position

stop

engages

withdraw

manually

operated

breaker

from

TEST

depress

the

test

position

stop

lever

and

pull

the

breaker

out

its

compartment

until

the

tray

stops

this

position

the

tray

will

fully

withdrawn

against

its

limit

stop

The

withdrawal

movement

for

electrically

operated

breakers

differs

from

the

above

that

the

tray

stopped

short

its

WITHDRAWN

limit

the

compartment

mounted

spring

discharge

stop

order

complete

the

withdrawal

the

closing

springs

first

must

discharged

depressing

the

spring

discharge

lever

the

breaker

keeping

this

lever

depressed

pull

the

breaker

completely

out

against

the

tray

limit

stop

ramp

cam

mounted

the

compartment

wall

keeps

the

breaker

trip

free

during

the

outward

travel

from

the

TEST

position

Before

proceeding

with

subsequent

operations

move

the

breaker

from

the

tray

visually

check

the

breaker

’

CHARGED

DISCHARGED

and

OPEN

CLOSED

indicators

verify

that

the

breaker

open

and

the

springs

are

discharged

This

precaution

particularly

important

locations

where

AKR

and

100

breakers

are

being

deployed

AKD

equipments

replacements

for

and

100

non

quick

electrical

models

;

these

compartments

did

not

need

and

were

not

equipped

with

spring

discharge

stop

NOTE

spring

discharge

stop

will

not

present

some

AKD

type

compartments

originally

furnished

for

electrically

operated

and

100

breakers

the

non

quick

type

Depress

the

TEST

position

stop

lever

and

push

the

breaker

farther

into

the

compartment

until

the

outer

surfaces

the

racking

cams

butt

against

the

racking

pins

the

housing

Insert

the

racking

handle

(

673

0500

636

)

the

jackscrew

shaft

the

upper

right

side

the

breaker

Rotate

clockwise

until

the

jackscrew

comes

solid

stop

The

breaker

now

the

CONNECTED

position

5.2

BREAKER

REMOVAL

With

the

door

closed

and

latched

trip

the

breaker

Remove

the

two

inch

hex

head

screws

which

fasten

the

breaker

the

compartment

tray

Open

the

door

and

insert

the

racking

handle

the

jackscrew

shaft

Rotate

counterclockwise

until

the

jack

screw

comes

solid

stop

this

point

the

primary

discon

nects

are

disengaged

Now

pull

the

breaker

out

its

compartment

until

the

test

position

stop

engages

thereby

holding

the

breaker

the

TEST

position

Using

care

prevent

damage

the

wiring

attach

the

lifting

device

the

cutout

notches

the

top

wraparound

frame

the

breaker

Fig

AKR

electrically

operated

pole

(

AKD

type

)

Courtesy of NationalSwitchgear.com

Lift

the

breaker

approximately

one

half

inch

off

the

dowel

pins

Push

the

tray

back

into

the

compartment

With

the

door

open

the

breaker

manually

pulled

out

from

the

DISCONNECTED

the

WITHDRAWN

position

;

here

the

breaker

completely

out

its

compartment

ready

for

moval

Swing

the

breaker

forward

until

the

primary

discon

nects

clear

the

compartment

Lower

the

breaker

onto

flat

surface

free

protrusions

that

could

damage

the

breaker

’

internal

parts

NOTE

All

electrically

operated

AKR

751100

breakers

employ

spring

discharge

interlock

which

prevents

removal

the

breaker

with

its

clos

ing

springs

the

charged

state

Before

the

breaker

can

moved

away

from

the

DISCON

NECTED

position

toward

the

WITHDRAWN

posi

tion

necessary

depress

and

hold

the

breaker

mounted

spring

discharge

lever

(

Fig

)

This

discharges

the

closing

springs

and

releases

the

breaker

Manually

operated

breakers

not

require

this

interlock

because

their

closing

springs

are

never

propped

the

fully

charged

position

Refer

the

“

Manual

Closing

”

text

section

8.2

5.3

BREAKER

INSERTION

(

CODE

)

Prior

lifting

breaker

its

intended

compartment

location

observe

the

following

precautions

Check

the

compartment

insure

that

free

foreign

objects

Verify

that

the

breaker

the

correct

type

for

that

compartment

Insure

that

the

breaker

OPEN

Apply

thin

fresh

coat

lubricant

the

breaker

’

primary

disconnects

5.3

CODE

(

AKD

SWITCHGEAR

)

The

drawout

mechanism

equipment

mounted

and

externally

operated

removable

racking

handle

The

breaker

supported

two

pins

protruding

from

each

side

its

frame

these

engaging

slots

telescoping

rails

fastened

the

compartment

walls

The

drawout

operation

features

four

positions

—

CON

NECTED

TEST

DISCONNECTED

and

WITHDRAWN

the

CONNECTED

position

the

primary

and

secondary

dis

connects

are

fully

engaged

The

breaker

must

tripped

before

can

racked

into

out

this

position

the

TEST

position

the

primary

contacts

are

disconnected

but

the

sec

ondary

contacts

remain

engaged

This

allows

complete

breaker

operation

without

energizing

the

primary

circuit

the

DISCONNECTED

position

neither

primary

nor

second

ary

contacts

are

made

Breakers

can

racked

between

these

three

positions

with

the

compartment

door

closed

Each

position

clearly

identified

rotary

indicator

visible

through

opening

the

door

Fig

AKR

electrically

operated

(

AKD

type

)

Courtesy of NationalSwitchgear.com

Attach

lifting

hooks

the

cutouts

the

top

wrap

around

frame

and

raise

the

breaker

until

its

mounting

pins

clear

the

track

slots

Push

the

tracks

into

the

compartment

that

the

breaker

can

lowered

smooth

surface

free

protru

sions

that

could

damage

the

internal

parts

the

breaker

With

the

movable

inner

housing

the

compartment

the

CONNECTED

position

insert

the

racking

handle

(

part

673

0500

636

)

the

jackscrew

shaft

located

the

left

side

the

compartment

just

above

the

position

indicator

Rotate

the

handle

counterclockwise

until

the

jack

screw

stops

—

the

indicator

should

read

DISC

Remove

the

racking

handle

and

open

the

compart

ment

door

Rotate

the

two

track

lock

links

and

pull

the

right

track

the

limit

its

travel

Using

lifting

device

raise

the

breaker

until

the

breaker

mounting

pins

are

approximately

one

inch

above

the

tracks

Use

care

avoid

damage

the

breaker

wiring

Pull

the

left

track

out

the

limit

its

travel

and

lower

the

breaker

its

mounting

pins

drop

into

the

slots

the

track

Remove

the

lifting

device

Push

the

breaker

against

the

track

stops

electri

cally

operated

breakers

sure

depress

the

spring

dis

charge

lever

while

doing

Rotate

the

two

track

lock

links

lock

the

breaker

place

the

compartment

door

Insert

the

racking

handle

the

jackscrew

shaft

and

rotate

clockwise

move

breaker

into

the

compartment

Breaker

CONNECTED

position

when

jackscrew

stops

The

indicator

should

read

CONN

Orient

the

jackscrew

that

its

slotted

sleeve

free

move

outward

otherwise

the

breaker

will

remain

trip

free

5.4

CODE

(

AKR

SUBSTRUCTURE

)

(

Figs

)

The

AKR

substructure

self

contained

open

type

framework

serving

the

stationary

receptacle

for

drawout

breaker

Featuring

closed

door

type

drawout

operation

designed

for

convenient

mounting

individual

breaker

com

partments

drawout

switchgear

equipments

provides

means

for

making

the

primary

and

secondary

connections

the

removable

breaker

element

and

factory

aligned

The

breakers

are

bolted

roller

mounted

tray

which

part

the

substructure

The

racking

mechanism

breaker

mounted

The

racking

handle

inserted

through

the

com

partment

door

and

acts

rotate

slotted

racking

cams

each

side

the

breaker

frame

The

cams

engage

fixed

pins

mounted

both

side

plates

the

substructure

moving

the

breaker

and

out

through

the

same

four

positions

described

for

the

Code

Types

—

CONNECTED

TEST

DISCON

NECTED

WITHDRAWN

Breaker

position

registered

rectly

markings

the

right

side

the

escutcheon

which

appear

emerges

through

the

door

cutout

All

AKR

breakers

for

use

substructures

are

equipped

with

deep

”

escutcheon

instead

the

standard

escut

cheon

employed

all

other

models

This

configuration

lows

the

breaker

racked

between

the

CONNECTED

and

DISCONNECTED

positions

with

the

door

closed

The

door

does

not

move

with

the

breaker

does

the

AKD

and

AKD

models

5.3

BREAKER

REMOVAL

(

CODE

)

Trip

the

breaker

Insert

the

racking

handle

into

the

jack

screw

shaft

Rotate

the

handle

counterclockwise

until

the

jackscrew

stops

Indicator

should

read

DISC

Remove

the

racking

handle

and

open

the

compartment

door

Rotate

the

two

track

lock

links

and

pull

the

breaker

out

the

track

travel

limit

This

the

WITHDRAWN

position

the

breaker

electrically

operated

the

breaker

mounted

Spring

Discharge

lever

must

depressed

permit

with

drawal

NOTE

Spring

discharge

interlocks

were

not

quired

and

are

not

present

existing

compart

ments

originally

furnished

for

non

quick

type

electrically

operated

100

breakers

Regard

less

whether

this

interlocking

hardware

present

compartment

ALWAYS

verify

that

the

closing

springs

are

discharged

and

the

breaker

tripped

OPEN

before

removal

attempted

Fig

AKR

drawout

substructure

Cat

TAK

3200

amperes

Courtesy of NationalSwitchgear.com

5.4

BREAKER

INSERTION

(

CODE

)

Lower

the

breaker

over

the

tray

until

about

one

half

inch

above

the

two

dowel

pins

the

tray

Push

the

breaker

back

into

the

compartment

until

the

rear

bottom

flange

the

breaker

rests

against

the

guides

behind

the

dowel

pins

Slowly

lower

and

guide

the

breaker

onto

the

tray

the

holes

the

rear

flange

fit

over

the

two

dowel

pins

When

correctly

positioned

the

dowel

pins

the

breaker

’

rear

and

side

bottom

flanges

will

rest

firmly

the

tray

Secure

the

breaker

the

tray

inserting

and

tighten

ing

two

inch

hex

head

screws

into

the

front

holes

its

side

flanges

Push

the

breaker

into

the

compartment

until

the

spring

discharge

stop

engages

preventing

further

movement

This

the

DISCONNECTED

position

this

point

the

racking

cams

are

positioned

engage

the

fixed

racking

pins

the

compartment

ready

begin

the

racking

motion

noted

that

manually

operated

breaker

models

not

employ

spring

discharge

interlock

unnecessary

because

their

operating

mechanism

never

statically

posi

tions

the

springs

fully

charged

state

However

provide

necessary

means

for

mechanically

securing

the

breaker

the

DISCONNECTED

position

stop

employed

has

release

lever

marked

“

Push

Withdraw

”

and

located

the

same

place

the

spring

discharge

release

lever

electrically

operated

breakers

—

see

Fig

Prior

lifting

breaker

its

intended

compartment

location

observe

the

following

precautions

Check

the

compartment

insure

that

free

foreign

objects

Verify

that

the

breaker

the

correct

type

for

that

compartment

Insure

that

the

breaker

OPEN

Apply

thin

fresh

coat

lubricant

the

breaker

’

primary

disconnects

Insure

that

the

racking

cams

the

breaker

are

correctly

positioned

for

initial

engagement

with

the

pins

the

compartment

this

insert

the

rack

ing

handle

and

rotate

fully

counterclockwise

Using

suitable

lifting

mechanism

and

spreader

rig

position

lifting

hooks

the

cutout

notches

the

top

wrap

around

frames

the

breaker

Exercise

care

avoid

damage

the

control

wiring

Open

the

compartment

door

Keeping

the

rollout

tray

positioned

inside

the

compartment

raise

the

breaker

above

the

elevation

the

tray

Pull

the

tray

all

the

way

out

its

WITHDRAWN

limit

FINGER

TYPE

PRIMARY

DISCONNECTS

“

PUSH

WITHDRAW

”

RELEASE

LEVER

Fig

AKR

manually

operated

(

substructure

type

)

Courtesy of NationalSwitchgear.com

Otros manuales para MicroVersaTrip AKR-75

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