GE IFC51AD Manuale utente

INSTRUCTIONS

GEK

49827

INSERT

BOOKLET

GEK

45375

OVERCURRENT

RELAYS

TYPES

IFC

and

IFC

and

IFC

and

GENERAL

ELECTRIC

Courtesy of NationalSwitchgear.com

GEK

49827

OVERCURRENT

RELAYS

TYPES

IFC

and

IFC

and

IFC

and

INTRODUCTION

These

instructions

plus

those

the

included

book

GEK

45375

form

the

instructions

for

these

relays

DESCRIPTION

The

Types

IFC

and

IFC

covered

these

instructions

are

similar

respectively

the

IFC

and

IFC

the

included

instructions

except

that

the

target

seal

units

have

two

elec

trically

separate

contacts

The

Types

IFC

and

IFC

are

similar

respectively

the

IFC

and

IFC

except

that

each

target

seal

and

instantaneous

unit

has

two

electrically

separate

contacts

The

internal

connections

are

included

these

instructions

tabulated

below

Types

Figure

IFC

APPLICATION

The

application

areas

these

relays

are

the

same

all

respects

those

covered

the

APPLICATION

section

the

included

instructions

GEK

45375

Note

that

the

second

contact

the

seal

unit

and

the

instantaneous

overcurrent

unit

when

present

intended

for

local

alarm

and

remote

indication

shown

the

typical

external

connections

Figure

these

instructions

All

other

sections

the

included

book

GEK

45375

also

apply

these

relays

These

instructions

not

purport

cover

all

details

variations

equipment

nor

provide

for

every

possible

contingency

met

connection

with

installation

operation

maintenance

further

information

desired

should

particular

problems

arise

which

are

not

covered

sufficiently

for

the

purchaser

purposes

the

matter

should

referred

the

General

Electric

Company

Should

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

49827

INDUCTION

UNIT

—

SHORT

FINGER

FIG

(

0208

8514

INTERNAL

CONNECTIONS

FOR

RELAY

TYPES

IFC

AND

IFC

FRONT

VIEW

Courtesy of NationalSwitchgear.com

GEK

49827

INST

INDUCTION

UNIT

—

INST

CUD

INSTANTANEOUS

SETTINGS

SET

LINK

FOR

HIGH

RANGE

AND

LOW

RANGE

LINK

SHOWN

HIGH

RANGE

POSITION

SHORT

FINGER

FIG

(

0208

8515

)

INTERNAL

CONNECTIONS

FOR

RELAY

TYPES

IFC

AND

IFC

FRONT

VIEW

Courtesy of NationalSwitchgear.com

GEK

49827

BUS

Jluf

NOTE

DEVICr

•

IFC

AND

—

FEEDER

(

)

TRIP

BUS

(

)

ALARM

BUS

TSI

151

jTl

SAME

PHASE

ALARM

REMOTE

INDICATION

PHASES

AND

NEUTRAL

SAME

PHASE

(

)

FIG

(

0275

903

)

EXTERNAL

CONNECTIONS

FOUR

IFC

RELAYS

USED

FOR

MULTI

PHASE

AND

PHASE

GROUND

FAULT

PROTECTION

PHASE

CIRCUIT

Courtesy of NationalSwitchgear.com

GEK

49827

TABLE

IFC

TOC

SETTINGS

TAPS

AVAILABLE

SIAO

IFC

[

IFC

Revised

since

last

issue

Courtesy of NationalSwitchgear.com

GENERAL

ELECTRIC

COMPANY

POWER

SYSTEMS

MANAGEMENT

BUSINESS

DEPT

MALVERN

19355

GENERAL

ELECTRIC

(

)(

1300

)

Courtesy of NationalSwitchgear.com

GEK

45375

INSTRUCTIONS

TIME

OVERCURRENT

RELAYS

Types

IFC

and

IFC

and

IFC

and

Protection

and

Control

205

Great

Valley

Parkway

Malvern

19355

1337

Courtesy of NationalSwitchgear.com

GEK

45375

CONTENTS

DESCRIPTION

APPLICATION

CONSTRUCTION

RATINGS

TIME

OVERCURRENT

UNIT

HIGH

SEISMIC

INSTANTANEOUS

UNIT

HIGH

SEISMIC

TARGET

AND

SEAL

UNIT

CONTACTS

BURDENS

CHARACTERISTICS

TIME

OVERCURRENT

UNIT

HIGH

SEISMIC

INSTANTANEOUS

UNIT

HIGH

SEISMIC

TARGET

AND

SEAL

UNIT

RECEIVING

HANDLING

AND

STORAGE

ACCEPTANCE

TESTS

VISUAL

INSPECTION

MECHANICAL

INSPECTION

DRAWOUT

RELAY

TESTING

GENERAL

POWER

REQUIREMENTS

TIME

OVERCURRENT

UNIT

HIGH

SEISMIC

INSTANTANEOUS

UNIT

HIGH

SEISMIC

TARGET

AND

SEAL

UNIT

INSTALLATION

TESTS

PERIODIC

CHECKS

AND

ROUTINE

MAINTENANCE

TIME

OVERCURRENT

UNIT

HIGH

SEISMIC

INSTANTANEOUS

UNIT

HIGH

SEISMIC

TARGET

AND

SEAL

UNIT

CONTACT

CLEANING

COVER

CLEANING

SYSTEM

TEST

SERVICING

TIME

OVERCURRENT

UNIT

HIGH

SEISMIC

INSTANTANEOUS

UNIT

HIGH

SEISMIC

TARGET

AND

SEAL

UNIT

RENEWAL

PARTS

LIST

FIGURES

Courtesy of NationalSwitchgear.com

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