GE CAL16A Manual de usuario

GEI

31090

INSTRUCTIONS

SUPEftlEOtt

GEf

(

0 9

NETWORK

RELAYS

Types

CAN

;

won

POWER

SYSTEMS

MANAGEMENT

DEPARTMENT

GENERAL

ELECTRIC

PHILADELPHIA

Courtesy of NationalSwitchgear.com

NETWORK

RELAY

TYPES

CAL

AND

CAN

INTRODUCTION

With

few

eptions

the

Type

CAL

and

CAN

relays

are

Identical

construction

and

function

the

standard

secondary

network

relays

shown

the

Included

instruction

book

GEl

13580

The

CAN

will

prevent

reclosure

the

source

phase

sequence

reversed

and

the

network

phase

sequence

normal

The

principal

difference

fecting

both

relays

that

the

glass

cover

and

mounting

bracket

have

been

removed

and

the

relays

have

been

mounted

the

drawout

case

for

mounting

panel

Also

both

relays

have

ampere

holding

coils

the

reclose

circuits

Instead

the

0.3

ampere

coils

the

standard

relay

The

Type

CAN

relay

differs

from

the

Type

CAN

relay

several

points

concerning

physical

construction

and

electrical

connections

The

only

change

function

that

designed

trip

approximately

0.005

ampere

current

transformer

secondary

current

phase

with

line

neutral

voltage

intended

used

for

tripping

when

the

only

reverse

power

flowing

the

magnetizing

current

the

associated

power

transformer

The

principal

differences

between

the

Type

CAN

relay

and

the

Type

CAN

relay

areas

follows

The

reclose

contact

the

left

and

the

trip

contact

the

right

facing

the

relay

the

Type

CAN

relay

This

the

reverse

the

Type

CAN

relay

The

main

control

spring

used

adjust

trip

value

and

the

mechanical

restraint

used

adjust

reclose

value

the

Type

CAN

relay

The

electrical

restraint

element

has

been

omitted

the

Type

CAN

relay

The

potential

coils

instead

being

connected

directly

the

network

side

the

breaker

are

connected

resistor

combination

across

each

pole

the

associated

breaker

This

last

feature

allows

the

potential

coils

energized

from

the

network

side

when

the

source

side

energized

;

from

the

source

side

when

the

network

side

energized

When

the

breaker

closed

the

two

sections

the

resistor

com

bination

each

phase

are

effectively

parallel

and

the

net

resistance

the

same

that

ordinarily

used

with

the

Type

CAN

relay

(

340

ohms

when

6054972

used

the

phase

shifting

trans

former

and

when

the

900

ohm

resistor

used

the

phase

circuit

for

1.5

volt

reclosure

)

Therefore

the

tripping

characteristic

the

same

except

that

the

setting

0.1

instead

0.2

the

relay

rating

RECEIVING

HANDLING

AND

STORAGE

The

relays

when

not

included

part

control

panel

will

shipped

cartons

designed

protect

them

against

damage

Immediately

upon

receipt

relay

examine

for

any

damages

sus

tained

transit

injury

damage

from

rough

handling

evident

file

damage

claim

once

with

the

transportation

company

and

promptly

notify

the

nearest

General

Electric

Apparatus

Sales

Office

Reasonable

care

should

exercised

unpack

ing

the

relay

order

that

none

the

parts

are

injured

the

adjustments

distrubed

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

DESCRIPTION

RELAY

CASE

reset

mechanism

when

one

required

Each

cover

screw

has

provision

for

sealing

wire

The

case

suitable

for

either

surface

semi

flush

panel

mounting

and

assortment

hardware

provided

for

either

mounting

The

cover

attaches

the

case

and

also

carries

the

The

case

has

studs

screw

connections

both

ends

the

bottom

only

for

the

external

connections

The

electrical

connections

between

These

instructions

not

purport

cover

all

details

variations

equipment

nor

provide

for

every

possible

contingency

met

connection

with

installation

operation

nuintenance

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

standards

but

such

assurance

given

with

respect

local

codes

and

ordinances

because

they

vary

greatly

Should

Courtesy of NationalSwitchgear.com

GUI

31090

Network

Relays

Types

CAL

and

CAN

spec

live

blocks

the

cradle

and

case

also

locks

the

latch

place

The

cover

which

fastened

the

case

thumbscrews

holds

the

connecting

plug

place

the

relay

units

and

the

case

studs

are

made

through

spring

tacked

contact

fingers

mounted

stationary

molded

Inner

and

outer

blocks

between

which

nests

removable

connecting

plug

which

completes

the

circuits

The

outer

blocks

attached

the

case

have

the

studs

for

the

external

connections

and

the

Inner

blocks

have

the

terminals

for

the

Internal

connections

The

relay

mechanism

mounted

steel

framework

called

the

cradle

and

complete

unit

with

all

leads

being

terminated

the

Inner

block

This

cradle

held

firmly

the

top

and

the

bottom

and

guide

the

back

the

case

The

cases

and

cradles

are

constructed

that

the

relay

cannot

Inserted

the

case

upside

down

The

connecting

plug

besides

making

the

electrical

connections

between

the

draw

out

the

relay

unit

the

cover

first

removed

and

the

plug

drawn

out

Shorting

bars

are

provided

the

case

short

the

ourrent

transfor

mer

circuits

The

latches

are

then

released

and

the

relay

unit

can

easily

drawn

out

replace

the

relay

unit

the

reverse

order

followed

separate

testing

plug

can

Inserted

place

the

connecting

plug

test

the

relav

place

the

panel

either

from

Its

own

source

current

and

voltage

from

other

sources

the

relay

unit

can

drawn

out

and

replaced

another

which

has

been

tested

the

laboratory

the

case

with

latch

INSTALLATION

LOCATION

AND

MOUNTING

dimensions

for

the

Type

CAN

relay

the

size

case

shown

Fig

CONNECTIONS

The

internal

connections

for

the

Type

CAL

and

CAN

relays

are

shown

Figs

and

respectively

typical

external

connection

diagram

for

the

The

outline

and

panel

drilling

Types

CALI

andCAN

relays

shown

Fig

The

location

should

clean

and

dry

free

from

dust

and

excessive

vibration

and

well

lighted

facilitate

inspection

and

testing

The

relay

should

mounted

vertical

sur

face

The

outline

and

panel

drilling

dimensions

for

the

Type

CAL

relay

the

size

case

shown

Fig

‘

HOLD

M G

COIL

HOLD

IMG

C O

TAlPif

URGE

F T

•

i i

’

•

SHORT

FINGERS

SHORT

FIMGCR

Internal

Connection

For

Relay

Type

CALI

Fig

Internal

Connection

For

Relay

Type

CAN

ISA

Fig

Courtesy of NationalSwitchgear.com

Network

Relays

Types

CAL

and

CAN

GEI

31090

INCOMING

LINE

CAN

TARGET

FOR

USE

WITH

TIMER

POWER

TRANS

CAL

PHASE

SHIFTING

TRANSFORMER

6054972

{

RIP

(

RECljOSE

)

CAN

CURRENT

ILS

161

114

;

PHASE

SHIFTING

TRANSFORMER

6054972

’

lPw

[

•

CAN

POTENTIAL

COILS

CAL

POTENTIAL

COILS

125

CIRCUIT

BREAKER

NETWORK

Fig

External

Connections

For

Types

CAL

And

CAM

Relays

Courtesy of NationalSwitchgear.com

GEI

31090

Network

Relays

Types

CAL

and

CAN

TRIPPING

605

972

PHASE

SHIFTING

TRANSFORMER

—

•

CURRENT

CIRCUITS

POTENTIAL

CIRCUITS

RECLOSIRG

“

900

605

8972

SHIFTING

TRAN

•

)

POTENTIAL

CIRCUITS

CURRENT

RCU

ITS

Schematic

Diagram

Teat

Connections

For

Relay

Type

CAN

Fig

Courtesy of NationalSwitchgear.com

Network

Relays

Types

CAL

and

CAN

OEI

SIO

•

—

COMMfCTlONt

SNOHN

POft

PMAlIKl

LTA

ItASIMI

POL

(

CONNfCTIOM

touici

VOLTAIC

All

LAGGING

OKH

ACACTOI

‘

•

)

POUAl

ZING

PHASING

Schematic

Diagram

Test

Connections

For

Relay

Type

CAL

Fig

MAINTENANCE

TYPE

CAN

RELAYS

INSPECTION

AND

MECHANICAL

ADJUSTMENT

The

main

control

spring

the

Type

CAN

relay

adjusted

that

the

trip

contacts

are

open

with

zero

windup

the

control

spring

adjusting

shaft

and

are

just

made

when

there

are

half

turns

windup

(

counterclockwise

)

the

adjusting

shaft

The

normal

position

the

spring

such

that

the

right

hand

(

trip

)

contacts

just

make

with

the

relay

energized

This

can

checked

deflecting

the

right

hand

stationary

contact

the

right

and

noting

that

the

moving

contacts

not

move

the

right

Items

under

INSPECTION

AND

MECH

ANICAL

ADJUSTMENT

GEI

13580

apply

the

Type

CAN

relay

Item

under

the

same

heading

covering

the

electrical

restraint

ele

ment

does

not

apply

CALIBRATION

TESTS

AND

ADJUSTMENTS

Just

made

With

only

the

potential

colls

ener

gized

the

moving

contacts

should

pull

away

from

the

trip

contact

Closing

the

switch

the

current

cir

cuit

pass

current

through

the

winding

with

the

connections

shown

should

produce

torque

the

direction

the

trip

contact

With

the

connections

shown

sing

phase

current

ust

and

the

required

single

phase

current

equal

1.5

times

the

desired

three

phase

trip

setting

For

example

desired

trip

0.005

amperes

balanced

three

phase

current

the

ammeter

should

read

0.0075

amperes

because

the

single

phase

current

The

trip

calibration

can

adjusted

above

below

the

factory

setting

the

factory

setting

can

restored

adjusting

the

main

control

spring

adjusting

shaft

(

see

photographs

CAN

relay

Fig

GEI

13580

)

Turning

this

shaft

clockwise

increases

the

amount

reverse

current

required

for

tripping

and

turning

the

shait

counterclockwise

decreases

the

amount

reverse

current

required

Reclosing

check

the

voltage

necessary

for

reclosing

connect

shown

the

lower

diagram

Fig

The

one

ohm

resistor

parallel

with

the

phasing

(

)

winding

the

phase

shifting

transformers

has

such

low

Impedance

compared

the

phasing

windings

that

practically

all

the

current

read

ammeter

passes

through

the

resistor

and

the

ammeter

reading

equal

the

voltage

across

the

resistor

Since

this

single

phase

test

the

voltage

applied

must

times

the

desired

three

phase

reclose

setting

For

example

for

three

phase

volt

reclose

setting

the

ammeter

should

read

amperes

Fig

shows

the

test

connections

for

checking

and

adjusting

both

the

tripping

and

reclosing

cali

bration

The

trip

setting

should

checked

first

because

any

adjustment

the

trip

setting

also

affects

the

reclose

setting

;

whereas

the

reclose

setting

can

adjusted

independently

the

trip

setting

and

should

therefore

made

last

Tripping

Connect

the

relay

shown

Fig

With

the

relay

energized

the

right

hand

contact

should

Courtesy of NationalSwitchgear.com

GEl

31090

Network

Relays

Types

CAL

and

CAN

except

the

Instant

the

contacts

touch

Interrupt

the

holding

current

external

switch

the

contact

circuit

never

the

contacts

TYPE

CAL

RELAY

The

Type

CAL

relay

Identical

the

Type

CAL

relay

described

the

Included

Instruc

tion

book

GEl

13580

except

that

mounted

drawout

case

For

calibration

the

relay

should

connected

shown

Fig

The

normal

cali

bration

the

Type

CAL

relay

its

contacts

when

the

phasing

voltage

(

studs

)

gradually

Increased

0.5

volt

leading

the

potential

voltage

(

studs

)

degrees

Adjustments

can

made

described

GEI

13580

The

reclose

calibration

the

relay

can

changed

adjusting

the

mechanical

restraint

ele

ment

Turning

the

cap

the

restraint

clockwise

increases

the

restraint

and

therefore

the

reclose

calibration

Holding

Coils

Both

holding

coils

the

Type

CAN

relay

are

rated

amperes

These

holding

coils

can

checked

part

the

trip

and

reclose

adjustments

above

connecting

adjustable

resistor

the

contact

circuit

and

adjusting

the

holding

coil

circuit

amperes

soon

the

trip

reclose

con

tacts

make

the

sealing

armature

should

definitely

seal

them

closed

and

there

should

sparking

Courtesy of NationalSwitchgear.com

Network

Relays

Types

CAL

and

CAN

GEI

31090

PANEL

LOCATION

SEMI

FLUSH

SURFACE

MTG

(

STUDS

FOR

SURFACE

MTG

‘

OOOOO

90090

NUMBERING

STUDS

(

FRONT

VIEW

)

SCREW

(

STUD

)

;

SMTG

SCREW

OUTLINE

PANEL

DRILL

HOLES

mjco

(

STUD

DRILL

HCcEt

)

”

)

—

)

VIEW

SHOWING

ASSEMBLY

HARDWARE

FOR

SURFACE

MTG

STEEL

PANELS

tic

MJFLUSH

PANEL

DRILLING

MOUNTING

(

PANEL

DRILLING

FOR

SURFAi

MOUNTING

(

FRONT

VIEW

)

FIg

Outline

And

Panel

Drilling

Dimensions

For

Relay

Type

CALI

Courtesy of NationalSwitchgear.com

GEI

090

Network

Relays

Types

CAL

and

CAN

PANEL

LOCATION

SEMI

FLUSH

SURFACE

—

SCREW

(

STUD

)

ooooo

[

rOfT

(

[

STUDS

FOR

SURFACE

MTG

inf

CNJ

ooooo

NUMBERING

STUDS

(

FRONT

VIEW

)

(

IKD

“

MTG

SCREW

OUTLINE

LCio

;

arj

•

YDFUL

HOLES

PANEL

{

NjCO

STUD

foh

ffi

—

IJJ

’

VIEW

SHOWING

ASSEMBLY

HARDWARE

FOR

SURFACE

MTG

STEEL

PANELS

(

PANEL

DRILLING

FOR

SURFACE

MOUNTING

(

FRONT

VIEW

)

PANEL

DRILLING

FOR

SEMI

FLUSH

MOUNTING

(

FRONT

VIEW

)

Outline

And

Panel

Drilling

Dimensions

For

Relay

Type

CAHI

Fig

Courtesy of NationalSwitchgear.com

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