GE IJS52D Bedienungsanleitung

GEI

90802

INSTRUCTIONS

SYNCHRONISM

CHECK

RELAY

TYPE

IJS

Protection

and

Control

205

Great

Valley

Parkway

Malvern

19355

1337

Courtesy of NationalSwitchgear.com

90802

CONTENTS

PAGE

INTRODUCTION

APPLICATION

RATINGS

CHARACTERISTICS

Operating

Principles

BURDENS

CONSTRUCTION

RECEIVING

HANDLING

AND

STORAGE

ACCEPTANCE

TESTS

Visual

Inspection

Mechanical

Inspection

Electrical

Tests

INSTALLATION

PROCEDURE

Electrical

Tests

PERIODIC

CHECKS

AND

ROUTINE

MAINTENANCE

Contact

Cleaning

Mechanical

ectrical

SERVICING

Mechanical

Adjustments

Electrical

Adjustments

RENEWAL

PARTS

LIST

FIGURES

Cover

Photo

(

8038824

)

Courtesy of NationalSwitchgear.com

GEI

90802

SYNCHRONISM

CHECK

RELAY

TYPE

IJS

INTRODUCTION

The

Type

IJS

relays

are

the

induction

disk

construction

and

are

intended

for

use

synchronism

check

relays

The

synchronism

check

unit

has

two

shaded

pole

)

magnet

driving

elements

acting

opposite

sides

single

rotating

disk

(

see

Figure

)

operating

element

drives

the

disk

the

contact

closing

direction

and

the

other

the

restraining

element

drives

the

disk

the

opposite

direction

The

disk

shaft

restrained

spiral

spring

the

purpose

being

hold

the

contacts

open

when

the

relay

energized

The

motion

the

disk

retarded

permanent

magnets

(

drag

magnets

)

acting

the

disk

give

time

delay

One

these

the

The

Type

IJS

relay

has

two

telephone

type

undervoltage

units

designated

and

Figure

The

Type

IJS

relay

does

not

have

seal

unit

since

one

not

required

its

normal

application

These

are

APPLICATION

The

IJS

relay

applicable

synchronism

check

relay

permit

closure

circuit

breaker

only

when

the

two

sources

connected

are

correctly

synchronized

elsewhere

incterconnections

and

then

permits

closure

the

circuit

breaker

for

typical

elementary

diagram

determines

that

synchronism

being

maintained

other

See

Figure

such

application

the

voltages

may

slightly

out

phase

with

each

other

because

different

line

and

load

characteristics

This

condition

may

exist

for

example

where

one

line

supplying

lagging

load

through

transformer

bank

and

the

second

unloaded

The

relay

however

can

calibrated

permit

closure

the

breaker

under

these

conditions

the

voltage

and

the

phase

angle

differences

are

not

excessive

However

the

IJS

relay

cannot

discriminate

between

very

low

slip

frequency

between

systems

and

systems

synchronism

Figures

and

illustrate

that

the

slip

frequency

with

which

the

IJS

will

permit

closing

increases

with

increasing

closing

angle

settings

and

decreases

with

increasing

time

dial

settings

general

the

closing

angle

setting

fixed

the

maximum

angular

separation

the

systems

for

which

the

IJS

must

operate

and

the

slip

frequency

for

which

the

IJS

will

operate

reduced

acceptable

maximum

increasing

the

time

dial

setting

These

instructions

not

purport

cover

all

details

variations

equipment

nor

provide

for

Should

operetion

maintenance

every

possible

contingency

met

connection

with

installation

further

information

desired

should

particular

problems

arise

which

are

not

covered

sufficiently

for

the

purchaser

’

purposes

the

matter

shouid

referred

the

General

Electric

Company

IEEE

and

NEMA

standards

but

such

assurance

given

with

respect

Jocai

codes

and

ordinances

because

they

vary

greatly

the

extent

required

the

products

described

herein

meet

applicable

ANSI

Courtesy of NationalSwitchgear.com

GEI

90802

systems

where

lines

may

not

tied

together

elsewhere

the

IJS

relay

used

parallel

with

the

Type

GES

relay

permit

closure

breaker

with

zero

frequency

difference

Depending

the

external

connections

used

(

see

Figure

)

the

telephone

relays

and

mentioned

above

serve

reclose

the

breaker

under

conditions

(

)

dead

bus

line

(

)

live

bus

dead

line

(

)

dead

bus

live

line

(

)

dead

bus

live

line

live

bus

dead

line

(

)

dead

line

bus

live

dead

(

)

dead

bus

line

live

dead

RATINGS

The

operating

and

restraining

coils

the

synchronism

check

unit

are

continuously

rated

The

contact

this

unit

will

make

and

carry

momentarily

amperes

but

has

interrupting

rating

The

telephone

type

voltage

relay

contacts

will

make

and

carry

amperes

momentarily

for

normaly

duty

but

the

circuit

must

opened

breaker

auxiliary

unit

other

suitable

means

The

telephone

type

relays

have

operation

coils

rated

either

115

volts

CHARACTERISTICS

OPERATING

PRINCIPLES

The

operating

coils

mounted

the

left

hand

side

produce

torque

tending

the

synchronism

check

contact

This

torque

proportional

the

vector

sum

the

voltages

whose

phase

positions

are

being

compared

The

torque

produced

the

restraint

coils

proportional

the

vector

difference

the

voltages

The

operating

torque

maximum

when

they

are

phase

;

the

reverse

true

the

restraining

torque

The

closing

angle

the

relay

defined

the

maximum

phase

displacement

the

two

voltages

which

the

relay

will

its

synchronism

check

contact

when

the

voltages

are

rated

value

The

closing

angle

considered

standard

;

however

other

settings

may

made

indicated

the

voltage

phase

angle

characteristics

shown

Figure

The

time

delay

characteristics

the

Type

IJS

relay

are

obtained

primarily

the

time

dial

setting

The

time

dial

controls

the

distance

the

contacts

must

travel

before

closure

and

hence

controls

the

time

delay

time

dial

setting

the

travel

maximum

whereas

the

contacts

are

just

closed

certain

amount

adjustment

may

made

changing

the

position

the

drag

magnet

its

shelf

Moving

toward

the

disk

shaft

decreases

the

time

delay

while

moving

away

from

the

disk

shaft

increases

the

time

delay

Typical

time

phase

angle

curves

are

shown

Figures

and

for

cycle

relays

The

Model

IJS

relay

has

standard

closing

angle

setting

and

has

its

drag

magnet

adjusted

provide

seconds

time

delay

from

the

time

dial

setting

for

voltages

phase

The

closing

angle

this

relay

can

adjusted

angles

greater

than

but

with

corresponding

decrease

time

delay

Courtesy of NationalSwitchgear.com

GEI

90802

shown

Figure

The

approximate

reset

time

with

both

coils

energized

about

seconds

The

approximate

reset

time

with

one

coil

energized

rated

voltage

varies

from

seconds

the

setting

seconds

the

setting

with

the

time

dial

setting

The

Model

IJS

relay

which

designed

for

use

where

closing

angle

greater

than

200

required

provides

seconds

delay

the

400

closing

angle

setting

shown

Figure

may

adjusted

other

closing

angles

between

200

and

600

with

corresponding

changes

time

delay

shown

Figure

The

approximate

reset

time

with

both

coils

energized

about

130

seconds

the

time

dial

setting

The

approximate

reset

time

with

one

coil

energized

rated

voltage

varies

from

seconds

the

setting

seconds

the

setting

the

time

dial

setting

Figure

gives

the

operating

time

seconds

for

various

time

dial

settings

with

zero

phase

displacement

and

with

rated

voltage

cycles

both

circuits

Curves

for

cycles

are

similar

The

telephone

type

undervoltage

units

are

calibrated

pick

less

rated

voltage

and

drop

out

rated

voltage

BURDENS

The

burdens

for

the

synchronism

check

unit

are

given

Table

The

burden

varies

with

the

phase

displacement

the

two

voltages

with

minimum

maximum

180

TABLE

Vol

Cycles

Circuit

Phase

Difference

Watts

Volt

Amps

Power

Factor

1.00

0.258

0.312

0.300

0.360

3.86

180

1.25

4.00

1.10

3.63

1800

1.36

3.77

1.45

4.73

0.306

0.359

0.357

0.403

180

1.75

4.87

4.45

1.58

180

1.87

4.63

3.00

11.6

0.258

0.313

0.300

0.360

180

3.76

12.0

3.30

10.9

115

180

4.07

11.3

4.35

14.2

0.306

0.359

0.357

0.403

180

5.25

14.6

4.75

13.3

115

180

5.60

13.9

The

burden

telephone

relay

units

volt

amperes

and

watts

for

each

unit

rated

volts

cycles

and

volt

amperes

and

watts

for

each

unit

rated

115

volts

cycles

Courtesy of NationalSwitchgear.com

GEI

90802

CONSTRUCTION

The

relay

components

are

mounted

cradle

assembly

that

latched

into

drawout

case

when

the

relay

operation

but

they

can

easily

removed

when

desired

this

the

relay

first

disconnected

removing

the

connection

plug

that

completes

the

electrical

connections

between

the

case

blocks

and

the

cradle

block

test

the

relay

its

case

this

connection

block

can

replaced

test

plug

The

cover

which

attached

the

front

the

relay

case

contains

interlock

arm

that

prevents

the

cover

from

being

replaced

until

the

connection

plugs

have

been

inserted

Every

circuit

the

drawout

case

has

auxiliary

brush

shown

Figure

provide

adequate

overlap

when

the

connecting

plug

withdrawn

inserted

The

relay

case

suitable

for

either

semi

flush

surface

mounting

all

panels

inches

thick

and

appropriate

hardware

available

However

panel

thickness

must

indicated

the

relay

order

insure

that

proper

hardware

will

included

For

outline

and

drilling

dimensions

see

Figure

Internal

connections

for

the

IJS

are

shown

Figure

Note

that

the

connections

terminal

are

arranged

that

the

normally

closed

contact

can

used

separately

shown

the

typcial

external

connections

Figure

RECEIVING

HANDLING

AND

STORAGE

These

relays

when

not

included

part

control

panel

will

shipped

cartons

designed

protect

them

against

damage

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

Office

Immediately

upon

receipt

injury

damage

Reasonable

care

should

exercised

unpacking

the

relay

order

that

none

the

parts

are

injured

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

TESTS

Immediately

upon

receipt

the

relay

inspection

and

acceptance

test

should

made

make

sure

that

damage

has

been

sustained

shipment

and

that

the

relay

calibrations

have

not

been

disturbed

readjustment

necessary

refer

the

section

SERVICING

the

examination

tests

indicate

that

VISUAL

INSPECTION

Check

the

nameplate

stamping

make

sure

that

the

Model

Number

and

rating

the

relay

agree

with

the

requeisition

Courtesy of NationalSwitchgear.com

90802

Remove

the

relay

from

its

case

and

check

that

there

are

broken

cracked

molded

parts

other

signs

physical

damage

and

that

all

screws

are

tight

Check

that

the

short

fingers

are

the

correct

location

indicated

Figure

and

that

the

auxiliary

brushes

are

properly

adjusted

(

see

Figure

)

MECHANICAL

INSPECTION

Check

that

the

rotating

element

moves

without

noticeable

friction

Remove

the

time

dial

locking

screws

and

check

that

the

moving

contact

just

touches

the

stationary

contact

when

the

time

dial

set

zero

(

)

The

contact

wipe

should

approximately

Put

locking

screws

back

place

Check

that

the

control

spring

not

deformed

and

that

the

spring

convolutions

the

time

dial

setting

are

reasonably

concentric

Check

that

the

armatures

the

telephone

relays

move

freely

Also

with

the

telephone

relays

the

energized

position

all

circuit

closing

contacts

should

have

gap

0.015

and

all

circuit

opening

contacts

should

have

wipe

0.005

Gap

may

checked

inserting

feeler

gage

and

wipe

can

checked

observing

the

amount

deflection

the

stationary

contact

before

parting

the

contacts

The

armature

should

then

operated

hand

and

the

gap

and

wipe

again

checked

described

above

ELECTRICAL

TESTS

Connect

the

relay

shown

Figure

and

check

the

following

Check

that

the

relay

picks

with

approximately

the

time

delay

shown

Figure

when

single

phase

source

least

rated

voltage

connected

both

operating

coils

Check

that

the

relay

picks

closing

angle

(

other

closing

angle

used

)

within

when

connected

source

with

rated

voltages

both

coils

Check

zero

displacement

pickup

which

should

agree

with

the

value

Figure

within

With

both

coils

connected

rated

voltage

source

with

zero

displacement

check

that

pickup

time

agrees

with

the

values

given

Figures

With

adjustable

115

volt

source

rated

frequency

check

that

the

telephone

type

units

pick

less

rated

voltage

and

drop

out

rated

voltage

check

the

relay

connect

the

voltage

source

studs

and

check

relay

connect

voltage

studs

and

INSTALLATION

PROCEDURE

after

acceptance

tests

the

relay

held

storage

before

shipment

the

job

site

recommended

that

the

visual

and

manual

inspections

described

the

section

ACCEPTANCE

TESTS

repeated

before

installation

Courtesy of NationalSwitchgear.com

GEI

90802

ELECTRICAL

TESTS

Before

the

following

electrical

tests

are

made

the

relay

should

its

case

preferably

mounted

its

permanent

location

The

relay

closing

angle

should

set

required

for

its

permanent

location

which

would

normally

Connect

the

relay

shown

Figure

and

check

that

the

relay

picks

the

proper

phase

angle

phase

angle

meter

phase

shifter

not

available

possible

adjust

the

relay

approximately

the

closing

angle

desired

means

the

connections

and

curve

shown

Figure

this

test

rated

voltage

held

one

circuit

(

studs

)

and

reduced

voltage

applied

the

other

circuit

(

studs

)

The

voltage

connected

studs

adjusted

until

the

synchronizing

check

unit

just

closes

its

contact

with

the

voltage

given

the

curve

shown

Figure

for

the

phase

angle

used

(

volts

for

closing

)

The

difference

between

the

two

voltages

should

agree

approximately

When

using

the

connections

shown

either

Figure

check

the

operating

time

displacement

with

rated

voltage

each

coil

using

the

time

dial

setting

the

permanent

location

See

Figure

for

nominal

time

delay

values

Pickup

and

dropout

the

telephone

type

undervoltage

relays

should

checked

described

the

section

ACCEPTANCE

TESTS

PERIODIC

CHECKS

AND

ROUTINE

MAINTENANCE

view

the

vital

role

protective

relays

the

operation

power

The

interval

system

important

that

periodic

test

program

followed

between

periodic

checks

will

vary

depending

upon

environment

type

relay

and

the

user

experience

with

periodic

testing

experience

select

the

test

interval

best

suited

his

individual

requirements

suggested

that

the

following

points

checked

once

year

Until

the

user

has

accumulated

enough

CONTACT

CLEANING

flexible

burnishing

tool

should

used

for

cleaning

relay

contacts

This

flexible

strip

metal

with

etched

roughened

surface

which

effect

resembles

superfine

file

The

polishing

action

this

file

delicate

that

scratches

are

left

the

contacts

yet

cleans

off

any

corrosion

thoroughly

and

rapidly

The

flexibility

the

tool

insures

the

cleaning

the

actual

points

contact

Relay

contacts

should

not

cleaned

with

knives

files

abrasive

paper

Knives

files

may

leave

scratches

which

increase

arcing

and

deterioration

Abrasive

paper

cloth

may

leave

minute

particles

insulating

cloth

the

contacts

abrasive

material

the

contacts

and

thus

prevent

closing

The

burnishing

tool

described

above

can

obtained

from

the

factory

Courtesy of NationalSwitchgear.com

GEI

90802

MECHANICAL

The

mechanical

checks

described

the

section

ACCEPTANCE

TESTS

should

repeated

ELECTRICAL

Using

the

connections

Figure

Check

that

the

maximum

closing

angle

for

pickup

the

synchronizing

check

unit

agrees

approximately

with

the

value

shown

the

curve

Figure

Check

the

closing

time

with

the

potentiometer

set

provide

rated

voltage

both

circuits

The

time

should

agree

with

the

values

given

Figure

Check

the

pickup

and

dropout

the

telephone

type

undervoltage

units

(

and

)

SERVICING

recalibration

the

relay

necessary

the

following

should

considered

when

making

adjustments

MECHANICAL

ADJUSTMENTS

The

moving

contact

should

just

touch

the

secondary

contact

when

the

time

dial

set

the

zero

(

)

position

readjustment

necessary

loosen

the

two

clamping

screws

which

fasten

the

stop

arm

the

shaft

and

change

the

position

the

stop

arm

relative

the

moving

contact

until

the

contacts

just

touch

with

the

time

dial

set

fine

adjustment

can

obtained

moving

the

stationary

contact

brush

out

means

its

adjusting

screw

However

the

final

adjustment

the

contact

brush

must

positioned

that

there

wipe

with

the

contact

fully

closed

sure

that

the

screws

are

securely

tightened

after

the

adjustment

made

The

stop

arm

leaf

spring

should

deflect

least

when

the

synchronism

check

unit

energized

The

disk

and

shaft

assembly

should

have

vertical

end

play

and

both

bearing

screws

should

tight

centered

between

the

poles

the

magnet

and

drag

magnet

The

disk

should

approximately

Telephone

type

relay

contact

gaps

may

adjusted

bending

the

stationary

contact

brush

obtain

0.015

inch

gap

When

the

adjustment

made

the

wipe

must

rechecked

make

sure

there

minimum

0.005

wipe

ELECTRICAL

ADJUSTMENTS

Closing

Angle

Adjustment

make

accurage

adjustment

the

Connect

the

relay

shown

Figure

closing

angle

phase

shifter

and

phase

angle

meter

are

required

along

with

means

for

voltage

control

Courtesy of NationalSwitchgear.com

GEI

90802

Two

adjustments

are

necessary

for

obtaining

desired

closing

angle

The

right

hand

adjustable

resistor

the

top

the

frame

permits

equalizing

the

closing

angle

That

the

closing

angle

will

the

same

whether

one

voltage

leading

lagging

the

other

voltage

The

left

hand

adjusting

resistor

for

obtaining

the

correct

closing

angle

setting

Simultaneous

adjustments

the

two

resistors

are

necessary

Using

the

connections

shown

Figure

set

rated

voltage

closing

angle

desired

set

rated

voltage

leading

Adjust

the

left

hand

resistor

until

the

contacts

just

Now

with

rated

voltage

both

circuits

determine

the

angle

which

the

contact

closes

with

lagging

the

two

angles

are

unequal

equalize

them

adjusting

the

right

hand

resistor

Then

check

the

closing

angle

with

leading

and

readjust

necessary

Continue

this

procedure

until

the

relay

contacts

just

for

leading

lagging

200

Use

the

same

procedure

for

other

closing

angle

settings

Pickup

and

Dropout

The

pickup

and

dropout

the

telephone

type

relay

may

changed

adjusting

the

gap

between

the

armature

and

the

pole

face

bending

the

contact

operating

arm

stop

After

this

adjustment

made

the

contact

wipe

and

gap

must

rechecked

Operating

Time

necessary

adjust

the

time

characteristics

impose

the

chosen

conditions

the

relay

using

connections

shown

Figure

and

adjust

the

time

dial

and

necessary

the

drag

magnet

until

the

correct

operating

time

obtained

RENEWAL

PARTS

Sufficient

quantities

renewal

parts

should

kept

stock

for

the

prompt

replacement

any

that

are

worn

broken

damaged

When

ordering

renewal

parts

address

the

nearest

Sales

Office

the

General

Electric

Company

Specify

the

name

the

part

wanted

quantity

required

and

complete

nameplate

data

including

the

serial

number

the

relay

possible

give

the

General

Electric

requisition

number

which

the

relay

was

furnished

Since

the

last

edition

changes

have

been

made

the

final

step

ELECTRICAL

TESTS

PAGE

Courtesy of NationalSwitchgear.com

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