General Electric GE Bulletin No. 4800 : Direct Current Motors Type CVC Motors

-

Genera/

January,

The

strictly

current

marked
istics
that
here
the

use

1911

COMMUTATING

use

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DEPARTMENT

Copyright,

Electric

1911

Company

MOTORS,

electrically
of

a

the

manufacturers

improve

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mechanical

In

increment
frictional—decreases

ful

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W.Y.

best

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mpany

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designers

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362.3%g

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No.

4800

the

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PA.N.V.

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carefully

inside

of

the

ELECTRIC

the
all

Studs

assembled

a

at

of

The
being
nut
of

being

may

shifted

proved

type.

accurately
finished;
movement,

tering.

or
mutator

COMPANY

An

adjusting

yoke

brushes

Brush

studs

held

and

the

studs
embedded
be

without

The

CVC
pattern

The

Brush-holders

removed

screw

binding

allows

setting

by

rotating

studs

are

inasteel

BRUSH-HOLDER

are

readily

in

lock

washer.

are

handled

fear

BRUSH-HOLDERS

or

made

mica-insulated

place

carefully

in

the

or

of

shock.

brush-holder

of

the

well-known

metal

broached

the

are

brush-slides

to

brushes,
thereby

BRUSHES

may

without

end

bearing

head

CVC

Motors

the

simultaneous

the

rocker.

up

of

COMPLETE

attached

by

a

simple

As

the

insulated

rocker

the

arm,

brushes

represents

or

gauge,

prevented

taking

while

be

or

and

allowed

readily

off

disturbing

split

steel

or

detached,

yoke

the

clock

boxes

carefully

from

adjusted

the

4800–7

ring

shift

studs

sleeve.

“hex"

ends

before

yoke

thereby

an

im

spring

are

free

chat

com

the

of
of

GENERAL

ELECTRIC

COMPAN

V

4800–8

connections;

performs

is

importantincase

rotationisdesired.

The

from

CVC

the

the

brushes

especially

Motors

looseningofa

entire

BRUSHES

for

treated
coefficientoffriction,
current
held

mutator
spiral
the
spiral
springofproper
undersideofthe

small
brushes

teredinthe

refinements
aided
attendant

mutator.

are

sion.

obtained
boltsofthe

set

the

with
between
of
or

driven

firmly

spring

lever

SLIDING

inertia

The

suitable

screw

subbase.

suitable

the
chain

carrying

and

uniformly

throughalever

embracing

armispivoted.

spring,

an

flexibilityisattachedtothe

lever

BASE

SHOWING

ADJUSTING

servestoprevent

when

slight

commutator

briefly

materially

heating

SLIDING

unified

Backward

for

by

bases

floor,

loosening

motor

bolt

projecting

Carefully

bolts

the

movable

base

assure

alignment

units.

capacity.

auxiliary

in

or

single

function.

reversalofthe

CVC

carbon,

andinall

the

arm;

BOLTS

This

motors

are

havingalow

cases

Each

against

arm

actuated

stud

upon

In

additiontothe

phosphor

this

spring

FASTENING

feature

armature

ample

brush

the

which

bronze

having

AND

jumpingofthe

irregularities

surface.

enumerated

are

The

above

encoun

various

reducing sparking with

of

brush

used with

wallorceiling

forward

and

and

permanently

between

parts

BASE

the

holding

then

turningasingle

through

machined

and

square

stationary

the

and

CVC

belt

the

correct

driving

motors

suspen

shift

end

grooves

washers

members

screw

made

com

by

have

com

down

of

belt
and

PAPER

All

belted

paper

pulleys

CVC

havingahigh

is

a

TYPE

OF

PAPER

PULLEY

friction

with

and

great

capable

uniformity.

efficiencyisnecessarytothe

tionofthe

have
correct

The

high

by

this

sion

and

expenseofboth

transmission.

Where

internal
from

is

CWC3H.P.

driven

superior

qualifications

balance

adhesiveortractive

typeofpulley

lowers

the

belting

ENCLOSING

service

parts

be whollyorpartially

possible

injury

TOTALLY

PULLEYS

motors

machinery,

and

first

are

USED

of

transmitting

Whereverahigh

mechanical

allows

reduced

cost

and

and

COWERS

requirements

duetowater,

ENCLOSED

furnished

coefficient

ON

CVC

MOTORS

successful

paper

in

lightness,

accuracy.

power

possessed

maintenance

the

mechanical

demand

protected

moisture,

TYPE

MOTOR

power

opera

pulleys

belt

with

of

belt

ten

that

dust,

metal

be

provided

hole

covers

The

cover

used

*light

but

strong

form

ofatruncated

rounding

on

provide

which

wing

shipped

suppliedatany

the

the

heads

a

are

bolts.

without

particles,

with

of

end

of

perfect

rigidly

Motors

etc.,

perforated

simple

for

the

sheet

and

commutator

iron

cone

head.

all

CVC

seating

held

in

in

enclosing

time,asall

Machined

service,

covers,

interchangeableonframesofa

ROTATION

All

standard
counter-clockwise
commutator
for

clockwise

CVC

motors

rotation

end.Ifitisdesirabletoarrange

rotation,

the

GENERAL

CVC

motors

or

solid

sturdy

spun

and

entirely

standard

for

the covers

place

covers

are

given

are

arranged

when

brush-holders

may

hand

design.

endisof

into

sur

surfaces

motors

by

strong

originally

may

be

strictly

size.

facing

ELECTRIC

the

so

for

the

COMPAN

as

bearing
tapped
arranged

V

brackets

and

symmetrically,

for

side

wallorceiling

CVC

frame

motors

Motors

are

drilled

may

be

suspension

4800–9

and

readily

by

CVC

MOTOR,

should

reassembled,sothat

of

The
brushes
with
reversal

Floor,

are

be

removed

the

stud

when

brush

yokeisthen

are

returnedtotheir

referencetothe

directions,

INSTALLATION

Side

WallorCeiling

Unless

otherwise

shipped

for

floor

SEMI-ENCLOSED

from

the

they

projecttothe

facing

the

shifted

original

pole

pieces.

see

Instruction

ordered,

all

installation.

TYPE

studs

and

right

commutator.

so

that

the

position

(For

lead

Book.)

CVC

motors

However,

turning

frame,

BELT

All

with

CWC

MOTOR

the

bearing

90°or180°

CVC

MOTOR

TIGHTENER

standard

belt

tightener

INSTALLED

ON

headsinrelationtothe

respectively.

CVC

MOUNTED

motors

ON WALL

ATTACHMENTS

maybefurnished

attachments.

CEILING

These

GENERAL

ELECTRIC

COMPANY

4800–10

devices

motors

screws
attachment

These

may

by

to

long

attachment.

marily
spring
pulley.

to

required

the

CVC

of

arm

The

position

arc

MOTOR

CVC

Motors

be

readily

substituting

hold

in

place

and

the

screws

The

a

cast

iron

carrying

arm

with

of

contact

WITH

applied

longer

both

standard

are

furnished

equipment

ring

an

idler

its

pulley

necessary

on

BELT

TIGHTENER

the

with

tension

to

the

to

bearing

belt

bearing

consists

an

adjustable

may

be

provide

driving

standard

head

tightener

head.

with

the

pri

or

binder

rotated

the

pulley.

HEAD

ADVANTAGES

Automatic

important

advantages

|

Permit

Allow

Belt

Tight-

e1161"S

Afford

8

Decrease

Eliminate

A

full

line

ments

shipment.

sions

to

the

are

of

these

VENTILATING

Standard

meet

the

fans

are

carried

(See

motors

mounted

OF

HEADS

tightening

short

shaft

centers.

the

pulleys

speed

if

greater

on

both

pulleys.

tension.

base,

the

an

automatic

of

CVC

in

page

devices.)

may

speeds

of

directly

BELT

devices

for

belt

distances

use

of

or

wide

desired.

arc

driving

belt

slip

necessity

device

belt

belt

tightener

stock

22

for

OUTFITS

be

disk

TIGHTENER

afford

several

drives.

between

small

driving

reduction

of

belt

contact

and

for

a

of

a

itself

acting

tightener.

attach

for

immediate

detailed

readily

fans,

on

and,

the

armature

designed

of

driven

given

sliding

as

dimen

since

The

equipment

smaller

ordinarily
with
admitting
differing
adjustment
tightener
held
the
tightening

of

this

by

same

a

tension

diameter

supplied

attachment.

the

only

of

is

accomplished

a

cap

function

or

loosening

rod.

LUBRICATION

The

tension

and

112

frames

patented

Frames

compression
obviate

composition

above

grease

the

necessity

includes

than

same

in

the

belt

screw;

OF

pulley

are

the

a

the

with

motors

Two

range

of

mechanical

tension

by

on

the

is

performed

a

nut

TENSION

bushings

made

requiring

112

size

cups

of

of

frequent

driving

standard

pulley

not

styles

are

adjustment

detail.

on

the

moving

larger

machines

by

on

the

extremity

PULLEYs

for

CVC

from

a

no

lubrication.

are

fitted

sufficient

attention.

of

pulley

fitted

used,

and

The

smaller

a

lever

simply

111

special

with

size

to

VENTILATING

shaft,

these

rigid

and

consisting

FAN

outfits
efficient.
of

fan,

DRIVEN

are

CVC

motor

BY

CVC

particularly

ventilating

and

supporting

MOTOR

compact,

outfits

tripod

GENERAL

ELECTRIC

COMPANY

CVC

Motors

4800–11

and

speed

in

six

42

in.

WENTILATING

Outfits

for

connection

are

also

Where

of

special

regulating

sizes

(i.e.,

18

and

48

in.)

FAN

similar

available.

BACK-GEARED

weight,

direct

to

to

single-

size

connected

rheostats,

in.,

24

DRIVEN

those

shown,

or

or

cost

are

in.,

30

BY

A.C.

and

polyphase

MOTORS

prohibit

motors

furnished

in.,

36

MOTOR

designed

motors,

the

to

driven

in.,

use

machines
motors
motors
machined
insuring
alignment

and

the
geared
a

stub

hub

of

the

the

full

lower

belt

A

protecting

and

pinion

tives

and

tween

able

the

to

rawhide
in

place

supplied.

requiring

are

widely

have

a

pads

permanent

and
back-geared

shaft

is

extension

larger

rated

speed.

avoids

prevents

tooth

reduce

or

cloth

of

the

slow

used.

countershaft

on

the

maintenance

spacing

of

between

large

amply

pulley

power

guard

accidental

obstructions

meshing.

the

noise

pinions

cut

steel

speed,

back-geared

Back-geared

supported

magnet

frame,

the

shaft.

diameter,
long

to

needed

of

the

to

motor

surrounding

injury

Where

to

a

may

be

pinion

of

proper

armature

The

back

having

take

transmit

at

the

to

opera

falling

it

is

minimum,

furnished

ordinarily

CVC

by

thus

the

the

gear

be

desir

CWC

BACK-GEARED

MOTOR

Two

ratios

adopted

Speeds

as

and

Consideration

tabulated
majority

using

motors

When

diameter

should

to

the

be

diameter,

pulley.

CVC

MOTOR

of

standard,

Gear

on

pages

of

requirements

with

selecting

and

face

carefully

GENERATOR

gear

Ratios

of

the

20

and

standard
a

back-geared

of

considered

face

and

reduction

i.e.,

4

speeds

21

will
may

the

speed

SET

have

to

1

and

and

gear

show

be

armature

motor,

driving

in

its

of

the

been

8

to

ratios

that

the

met

by

speeds.

the

pulley

relation

driven

1.

GEN

ERALELECTRIC

COMPANY

4800–12

CVC

MOTOR-GENERATOR

Motor-generator

operation

automobiles

current
change
voltage,

The

ard

CVC
together.
for

of

from

direct

or vice

illustration

frames

This

a

subbase
construction,
and

economizes

Both

motor
mounted
the
attendant

joined

As

onasingle

alignment

upon

by

a

standard
combinations
arranged

atamoderate

Motors

telegraph

and

launches,

alternating

current

versa;

on

bolted

design

and

decreases

space.

and

and

the

coupling.

frames

of

voltages

sets

are

instruments,

for

current

from

a

as

balance

page

11

rigidly

avoids

in

general

weight

generator

shaft,

lubrication

use

of

are

employed,

cost.

SETS

used

securing

higher

shows

and

the

per

armatures

thus

eliminating

separate

can

in
electric

direct

mains,
toalower

sets,

two

stand

compactly

necessity

simplifies

kw,

output

difficulties

shafts

special

readily

the

to

etc.

are

be

Open

Motors

Standard

their

rated

ture

risebythermometer

CVC

h.p.

HEATING

open

motors

continually

nottoexceed

with

will

a

tempera

deliver

40° C.

PUNCH

PRESS

DRIVEN

BYACVC

MOTOR

PUNCHING

on

the

windings,

An

overload

for

two

hours

exceed

on

Semi-

of

increases

the

the

55°

the

commutator.

or

Due

to

motors,

output

ratings

Totally-Enclosed

as

enclosed,
the

heating

safety.

For
temperature
motors,
to

rise

the

compensate

due

to

MACHINE

or

45°C.on

of25per

with

C.

on

the

fact

that

generators,

the

square

as

the

cube

of

CVC

are

necessarily

within

semi-enclosed

rise

is

input,

for

the

decreased

DRIVEN

cent

may

a

temperature

the

windings

Motors

the

transformers,

of

the

of

linear

motors,

the

limits

maintained

however,

increased

radiating

--

BY

CVC

MOTOR

the

commutator.

be

maintained

rise

and

radiating

dimensions

measurements,

if

reduced

established

motors,

to

the

as

for

being

temperature

surface.

not

to

60°

C.

surface

etc.,

and

totally

keep

by

same

open

reduced

GENERAL

ELECTRIC

COMPANY

CVC

Motors

4800–13

voLTAGES

Standard

Standard
or
volts.

Permissible

Standard

factory

maintainedatthe
If

OPEN,

CVC

CVC

CVC

CVC

CVC

CVC

CVC

CVC

CVC

CVC

CVC

CVC

ing

9

per

7%

*

and

Special

motors

550

volts;

Other

standard

voltagesonspecial

RangeofVoltage

guarantees

operation

the

voltage

SEMI-ENCLOSED

STANDARD

Frame

111

111

112

112

113

113

114

*

114

115

115

116 115

116

NQTE.-Motors

*50°

C.

The

speed,

cent

h.p.

slow

Commutator5°higher.

Volts

230
550

230
550

230
550

230
550

230
550

230

230

variationofStandard

for

sizesupto
speedtoCVC

AND

SPEEDs

Voltages

are

wound

generators

for

heating

of

CVC

motors

three

commercial

range

does

not

AND

SHUNT

Speed

115

115

115

115

115

115

550
115

230 825
550

115
230
550

115

230

550

115

230 9.25

550

230

550
115

550

1

100

1

100

1350
1650

1650

2000

1100

1100
1350

1650

J

650

2000
1

100

1

100

1350
1525

1525
1850

825

1125
1250

1250

1500

700
700

900

9.25

1350

700

700
825

925

9.25

1250

maybeoperatedatfull

CVC

1137%h.p.moderate

11620h.p.

following

out

for

115,

for

230

125

the

order.

and

will

voltages.

exceed

satis

Speed

be

approximately

the

voltage,

TOTALLY-ENCLOSED

OR

COMPOUND

*40°

RISE

OpEN

:

H.P.

#

Amps.

2

|

_

output

shunt

16.0

8.0

3.4 3.0

23.9

11.9

5.0

23.4

11.7

__4.9

38.8

19.0

8.0

19.0

8.0 6.5

57.9

28.8

12.0

56.8

28.4

11.9

75.5

37.7

15.7

74.5

37.2

15.6

112.0

55.8

23.4

112.0

55.8

23.4

149.0

74.5

31.2

when

wound

speed,

speed

S.S.

3

M.S.

3

S.S.

5

M.S.

5 38.0

S.S.

7.5

M.S.

7.5

S.S.

1()

M.S.

|_

10

S.S.

15

M.S.

15

S.S.

20

M.S.

CVC

moderate

limits,

excessive

entire

range.

115

volts,

230

volts,

550

volts,

Variation

While

the

it

WOUND

*40°

RISE

SEMI-ENCLOSED

H.P.

1%

S.S.

2.5

M.S.

|

2.5

S.S.

4

M.S

4

S.S.

...

6

M.S

6

S.S.

|_

semi-enclosed

motors

inclusive.

M.S.

S.S.

M.S.

S.S.

M.S.

and

1()

15

|

8

|

S

10

from

will

satisfactory

heating

range
range
range

willbeguaranteed

110to125

220to250

500to600

(Inherent)

speedofCVC

in

proportion

should

RATIN

be

GS

MOTORS

---

7.2

4.2

9.8

4.1

||

6.5

9.9

9.8

||

|

||

()

()
()

||

()

with

a

temperature

full

loadtono

exceed6per

not

Amps.

14.0

20.0

10.0

19.5

31.0

15.4

31.0

15.4

46.0

23.0

46.0

22.5

61.()

30.0

12.6

61.()

30.0

12.6

75,0

38.

15.7

77.

38.

15.7

114.0

57.

23.3

operation,

volts.
volts.
volts.

motors

remembered

FOR

*55° RISE

-

Speed

1200
1200

1475

1825

1825
2100

1200

1200

1475

1825

1825

2100

1200

1200

1475

1675

1675

2025

900
900

1225

1375
1375

1650

|

775
775

1000

1025

1025
1475

775
775

900

|

1025

1025

1375

load

cent

for

will

to

change

that

TYPE

H.P.

M.S.

M.S.

M.S.

M.S.

CVC

ENCLOSED

Amps.

1%

S.S.

2.5

2.5 19.5

S.S.

3.5

3.5

S.S.

5.5

5.5

S.S.

534

20.0

27.5

27.5

40.0

22.0

i

42.0

5%

S.S.

6%

M.S.

7

JA

S.S.

|

9%

M.S.

rise

not

exceed

will

not

sizes

CVC

with

over

vary

14.0

7.1

3.0

10.0

4.2

9.8

4.1

13.5

5.7

13.5

5.7

8.7

22.0

8.7

45.5

23.0

9.6

45.5

23.0

9.6

53.0

26.0

11.0

57.5

28.0

12.0

76.5

39.0

15.5

exceed

114

in
in

4800–14

CVC

Motors

GENERAL

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GENERAL

BOSTON,
NEW

Syracuse,N.Y.

Buffalo,N.Y.,
New
PHILADELPHIA,
Baltimore,
Charlotte,N.C.
Charleston,W.Va.
Erie,
Pittsburg,
Richmond,
ATLANTA,
Birmingham,

Macon,
New
CINCINNATI,

Columbus,

Cleveland,
Chattanooga,
Memphis,

Nashville,

Indianapolis,

CHICAGO,
Detroit,
St.
Kansas
Butte,
Minneapolis,
DENVER,
Salt
SAN
Los
Portland,
Seattle,
Spokane,

MASS.

YORK,N.Y.

Haven,

Md.

Pa.

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Pa.

Va.

GA.

Ga.

Orleans,

Ohio

Ohio

Tenn.

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ILL.

Mich.

Louis,

Mo.

City,

Montana

COLO.

Lake

City,

FRANCISCO,

Angeles,

Ore.

Wash.

Wash.

Conn.

.

.

Ala.

La.

Tenn.

Ind.

Mo.

Minn.

Utah

Cal.

PRINCIPAL

.

*

PA.

.

.

OHIO

.

.

&

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CAL.

ELECTRIC

OFFICES,

SALES

(Address

SCHENECTADY,N.Y.

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