Download - manual de motor rotor devanado.pdf
-
7/30/2019 manual de motor rotor devanado.pdf
1/12
Rev. Date 1/13/05 BULLETIN ED-6-6
B
ULLETIN ED-6-6
AC Wound Rotor Motors
INST
ALLATION
LOCA
TION. The main considerations in locating amotor are air circulation and environment. The location
must be such that adequate motor ventilation isassured. If the motor is to be located in an extremely
adverse environment, for example with abrasiveparticles or corrosive elements in the surrounding air,
consult the factory for information on protecting themotor.
MOUNTING. The motor should be securely mounted toa firm foundation, as close to the machinery to be driven
as possible, and grouted if necessary. These motors aredesigned primarily for direct coupling to the devicebeing driven. Refer to separate data sheets for motor
dimensions, and install a flexible coupling between themotor and the machinery according to the instructions
furnished by the coupling manufacturer.
If the motor is to be used in an application which is
chain, belt or gear coupled, contact the factory for thenecessary sprocket, sheave, pulley or gear size
requirements.
POWER CONNECTIONS. Check the power supply to
make sure it conforms with the nameplate values.Motors will operate successfully under running
conditions at rated load with a variation in voltage up to 10 per cent of the rated voltage, provided that the linefrequency matches the rated frequency. A Variation in
frequency up to 5 per cent of the rated frequency isallowed without appreciably affecting operating
efficiency under running conditions at rated load and atrated voltage. Performance within the above voltage
and frequency variations, however, may well be belowthe standards established for operation at rated voltageand frequency. It should be noted that voltage and
frequency variations become more critical as motorspeed decreases or number of poles increases.
Motors that are furnished as dual-voltage motors can beconnected for either operating voltage by following the
instructions on the connection diagram attached to themotor.
! DANGERWARNING
Hazar
dous voltage can cause burns, injury,
or death. Disconnect, lock open, and tag thepower source which feeds this device toprevent power from being applied while
inspection and repairs are being performed.
Disconnect, loc
k open, and tag the power source which
feeds this device to prevent power from being appliedwhile inspection and repairs are being performed.
If the direction of rotation of a 3-phase motor isincorrect, reverse any two of the three line leads to the
stator at the motor or motor controller. If the direction orotation of a 2-phase motor is incorrect, reverse the two
motor stator leads of one phase, either at the line or atthe motor controller.
The motor, control winding, overload protection, and
grounding should be in accordance with the NationaElectr ical Codes (latest issue), state and loca
regulations.
INITIAL LUBRICATION. Although all motors are fullylubricated prior to leaving the factory, it is recommendedthat a small amount of grease be added to the bearing
capsules of larger motors soon after placing the motoin operation. Refer to the topic, Relubricating Externally
Lubricated Bearings, for the correct procedure.
DRAIN HOLES AND PLUGS. One or two drain holes
are provided in most motors. These holes are located inthe bottom of the frame near the head ends, at the
lowest points. The purpose of the drain holes is toprevent accumulations of moisture inside the motor
Therefore, the drain holes should be left open, exceptwhere a motor is located in an extremely dirty or dustyatmosphere. Where heavy concentrations of dirt or dus
are present, plug the drain holes with threaded pipeplugs.
-
7/30/2019 manual de motor rotor devanado.pdf
2/12
Revised 1/13/05
2
AC Wound Rotor Motors
NOTICE
It is especially impor
tant that these drain holesbe lef t open on motors used in marine
applications.
MAINTENANCE
GENERAL.
I t is recommended that a per iodicinspection schedule be set up to inspect and clean themotor. Forms are provided at the back of this manual for
the purpose of recording test results and otherimportant motor information. These forms should be
copied, completed, and included as part of a permanentrecord of the motor.
The following points should be kept in mind wheninspecting the motor:
! DANGERWARNING
Hazar
dous voltage can cause burns, injury,
or death. Disconnect, lock open, and tag thepower source which feeds this device to
prevent power from being applied whileinspection and repairs are being performed.
Disconnect, loc
k open, and tag the power source whichfeeds this device to prevent power from being appliedwhile inspection and repairs are being performed.
! DANGERWARNING
Compressed air can cause injur
y or death.
When cleaning the motor with compressedair, do not exceed 50 psi air pressure or
damage will result to the windings or othermotor parts. Wear appropriate protective
clothing, safety glasses, and face maskswhen using compressed air to clean or dryparts and equipment.
1.
The motor should be blown out with filtered, drycompressed air (50 psi maximum), or vacuumed at
least once each year (more often if conditions
warrant) to keep the motor free of dust or othercontaminants. Using a clean cloth wipe any dirtfrom the slip ring assembly, so that a short circuit
cannot be established between the slip rings. Neverallow oil or grease to get on slip ring or brushes.Failure to observe this precaution will result in slip
ring and brush problems.
! DANGERWARNING
Hazar
dous voltage can cause burns, injury,or death. Disconnect, lock open, and tag thepower source which feeds this device to
prevent power from being applied while
inspection and repairs are being performed.
2.
Disconnect, lock open, and tag the power sourcethat feeds this device to prevent power from being
applied while inspection and repairs are beingperformed, and to prevent damage to the
semiconductors while performing the following step.
3. The stator and rotor should be subjected to an
insulation resistance test using a 500-volt megger.The insulation resistance between the rotor andstator windings and ground should not be less than
1 megohm for windings up to 600 volts. For highervol tage windings, the min imum insulat ion
resistance can be calculated using the followingformula:
4. Inspect the banding for tightness.
5. Check the flexible copper brush shunt to be sure
that the pig tail lug is securely fastened to the brushholder (refer to the topic, Brush Service).
NOTICE
Oil on the br
ushes will cause problems and
reduce brush life. Make sure your hands areclean when handling the brushes. Avoid
touching the bottom and side of brushes toprevent oil from your hands getting on the brush
surface.
6. When replacing or renewing the brushes, carefully
fit the brushes to the contour of the slip rings with#00 sandpaper (never use emery cloth, as emery
grit is a conductor). After seating the brushes,
remove them from the holders and clean thebrushes and brush holder to ensure free movement
of the brushes in the holders. Be sure to blow thecarbon dust from the motor after sanding the
brushes.
7. The slip rings must be kept clean, smooth and
concentr ic. They can be cleaned with #00sandpaper or a commutator stone.
Rated Voltage
Rated KVA100
+ 1000= Megohms
-
7/30/2019 manual de motor rotor devanado.pdf
3/12
Morris Material Handling
BULLETIN ED-6-6
3
8.
If the slip rings are rough or pitted, smooth them
with fine sandpaper, cut them with a lathe, or grindthem with a fine stone. Then polish the slip ringsusing #00 or #000 sandpaper.
9. Make frequent checks of the motor for unusual
noises or vibration. These conditions may indicatebearing failure.
10. If a rough or otherwise defective bearing issuspected, it should be replaced as soon aspossible.
BEARING LUBRICA
TION
GENERAL.
Experience shows that one of the major
causes of motor failure is related to the bearings.Therefore, great care must be taken to ensure proper
lubr icat ion and maintenance of the bear ings.Cleanliness is especially important. Use every
precaution in keeping the grease clean while in storage
and during the time is necessary to have the greasecontainer open, and also to avoid introducing dirt or
other fore ign mat ter in to the bear ings whenrelubricating.
Two basic types of bearings are used: sealed (orshielded); and externally lubricated, enclosed in a
capsule. Sealed bearings are used on all smallermotors, as well as some specially designed larger
motors. Externally lubricated bearings are used onlarger motors of standard design. Separate procedures
for relubricating both types of bearings are outlinedbelow.
RECOMMENDED LUBRICANTS. Bearings of allmotors are lubricated prior to leaving the factory withgrease specifically suited for the motor type and
application. It is imperative that the same type oflubricant continue to be used.
Class F and H insulated motors, except those usedin a high temperature environment, require a high
quality #2EP NLGI multi-purpose grease, meeting P&Hspecification #472.
Class H insulated motors used in a high-temperatureenvironment require a high- quality, high-temperature
grease, conforming to P&H specification #476.
For lubricants suitable for use in extremely low ambient
temperatures (-10 F, or lower, for periods of 72 hours orlonger), consult the factory.
RELUBRICATION INTERVALS. Ideal intervals betweenrelubrications of the motor bearings will vary according
to the type and size, severity of operation (duty cycle,loads, etc.) and operating environment. Use the
following guidelines in determining relubrication
intervals:
NOTICE
Excessiv
e grease can be almost as detrimentalas inadequate lubrication. Excessive grease in
a bearing or bearing capsule will cause thebearing to overheat. Overheating results in
shorter bearing life.
Sealed bearings are packed with sufficient grease to
permit the motor to operate for an extended periodbefore relubricating the bearings. In light-dutyapplications, and when operating intermittently in clean
and dry atmospheres where ambient temperatures donot exceed 100 F (40 C), sealed bearings need only
be relubricated every 10,000 operating hours or threeyears, whichever comes first. For continuous or heavy-
duty operation, in a clean, dry and relatively coo
environment, shorten the relubrication interval to 2,000hours or one year. When operat ing in severe
environments (corrosive or extremely dirty atmospherehigh ambient temperatures, etc.), the relubrication
interval must be further shortened. The actual interval inthis case can be determined on the basis of experience
with other motors in similar environments.
Large motors equipped with externally lubricated
bearings that are enclosed in a capsule, when used in alight or moderate-duty application and in clean, dry
atmosphere, should be relubricated according to theschedule in Table 1. When operating in heavy-duty
applications and/or in more severe environments (suchas encountered in chemical plants), the interval must beshortened. The intervals in this case can either be
determined by experience with similar conditions, or byperiodically analyzing samples of the grease from the
bearing chambers. This analysis, which most lubricansuppliers can perform or arrange for, is for the purposeof determining the contamination level in the grease
Once a critical contamination level is reached, thebearings must be relubricated as soon as possible. A
series of analyses need only be made once for a motoror a group or motors operating under the same
conditions. The time required for contamination to reach
a critical level will serve as a basis for determining alfuture relubrication intervals.
NOTICE
As indicated on the lubr
ication instruction plateattached to each motor, bearings should be
relubricated as shown in Table 1. This point isbrought out here because, under someoperating condit ions, it is necessary to
-
7/30/2019 manual de motor rotor devanado.pdf
4/12
Revised 1/13/05
4
AC Wound Rotor Motors
relubr
icate more frequently. In some cases,even daily lubrication may be in order. For
specific advice on relubrication intervals for aparticular motor application, consult the factory.
T
able 1: Bearing Lubrication Schedule
The bear
ings and bearing capsules must be thoroughly
cleaned and flushed, periodically. The recommendedintervals for cleaning and flushing are provided in Step
6 of the topic, Relubricating Externally LubricatedBearings.
RELUBRICATING SEALED OR SHIELDEDBEARINGS. Refer to the topics, Recommended
Lubricants and Relubrication Intervals, to determine the
proper type of lubricant to use and the frequency atwhich the bearings should be lubricated. Sealed (orshielded) bearings should be removed from the motorand cleaned at each relubrication interval. Relubricate
the bearings as follows (see Figure 1):
If motor is a hoist, move the crane to a suitable parkinglocation, lower block to the floor and support the blockto prevent it from falling over. Chock drum to prevent
rotation due to weight of cables pulling on the drum. Ifthe motor is for traverse motion on an outdoor crane,
move the crane to a suitable parking location and chockthe wheels to prevent movement of trolley/bridge due to
wind forces.
NOTICE
Use e
xtreme care to avoid introducingcontaminants in the bearings or in the grease,
at any stage of handling.
! DANGERWARNING
Hazar
dous voltage can cause burns, injury,or death. Disconnect, lock open, and tag the
power source which feeds this device toprevent power from being applied whileinspection and repairs are being performed.
1.
Disconnect, lock open, and tag the power sourcewhich feeds this device to prevent power from beingapplied while inspection and repairs are being
performed.
2. Clean the exteriors of the bearings, removing all dirtand other foreign matter. Then remove the snap ring
using a screwdriver as shown.
3. Carefully lift the seal from the bearing by gently
prying against the projecting flanges at the outeredge of the seal.
4. Remove as much of the old grease as possibleusing a good quality, short, stiff bristle brush. Then,
flush the bearing with an oil spray to remove alltraces of old grease. Hold the bearing to prevent it
from rotating while flushing with the oil spray.
5. Fill the bearing two-thirds full with the
recommended lubricant. Reinstall the seals and thesnaps rings.
NOTICE
Sealed (or shielded) bear
ings on motors
featuring capsule construction for the bearingsshould have a thick film of grease applied to the
side of the bear ings when operat ing inextremely dusty atmospheres. Motors used intaconite or mining operations are examples. A
motor operating in extremely wet surroundingsshould also have its bearings lubricated in the
same manner. Lubricating the sides of thebearings in these cases is in addition to the
normal lubrication outlined above.
RELUBRICATING EXTERNALLY LUBRICATED
BEARINGS. Proceed as follows:
NOTICE
Excess g
rease in bearing capsules usuallyworks its way past the inner shaft seals and
contaminates the inside of the motor, and willdamage the motor. Do not over-grease the
motor bearings.
This information applies to externally lubricated
bearings which are enclosed in a capsule. Following theinstructions on the lubrication plate on the outside of themotor frame, a discrete amount of grease (1/2 to 1
ounce, depending on the size of the bearing) should beadded to each bearing according to Table 1. Refer to the
topic, Recommended Lubricants, for the proper type oflubricant to be used. Avoid over-greasing the bearings.
Speed
(RPM)
Bearing
T
emp. (F)
Relubricating
Interval
Operating
Hours
Up to 600
Up to 150 deg.
8 to 12 mo. 2000
600 to 1800 Up to 150 deg. 6 to 8 mo. 1000
-
7/30/2019 manual de motor rotor devanado.pdf
5/12
Morris Material Handling
BULLETIN ED-6-6
5
NOTICE
Use e
xtreme care to avoid introducingcontaminants in the bearings or in the grease,at any stage of the handling.
1. Wipe the grease plugs and surrounding areas of thecapsules using a clean, dry cloth.
2. Remove the lower plugs from both capsules, andthe upper plugs if so equipped. Some capsules areequipped with grease fittings in the upper holes.
3. After removing the plugs, check for hardenedgrease around the openings. Remove any
hardened grease using a wooden or plastic stick.
4. Install a grease fitting, if applicable, in the upper
hole of each capsule.
5. With the motor running, pump grease into each
capsule from a hand-operated gun until cleangrease is expelled from the lower hole. Leave the
lower holes open and run the motor until no moregrease is expelled (20 minutes or longer). Thenreplace the plugs.
NOTICE
P
erforming the previous step exactly asdescribed will ensure that the capsules containthe correct quantity of grease. Leaving the
lower holes open and running the motor for theprescribed time purges the capsules of surplus
grease.
6. After every 10,000 operating hours or two years
which ever comes first, clean and flush the bearingsusing the following procedure:
Figure 1Relubricating Sealed Bearings
-
7/30/2019 manual de motor rotor devanado.pdf
6/12
Revised 1/13/05
6
AC Wound Rotor Motors
NOTICE
If a motor has been oper
ating in a dirty or dustyatmosphere, a contaminated environment, or in
high-ambient temperatures, the intervalsbetween the cleanings must be shortened.
NOTICE
Do not rotate the motor shaft if the bear
ing are
not lubricated to avoid damaging the motor.
A. Remove the old grease from both the bearing
and the bearing capsules.
! DANGERWARNING
Mineral spirit solvent fumes can cause
injury or death. Use only in outside or well
ventilated areas. In enclosed areas, use anon-flammable perchloroethylene or similar
solvent.
B
. Wash out the capsules using a suitable solvent.
C.Flush the bearings and bearing capsule withclean, light oil.
D.Repack the bearings and capsules with freshgrease, of the approved type. Pack the capsules
to a level not exceeding one-half full.
E. Assemble the motor and complete the lubrication
of the bearings as described in Steps 1 through5.
BR
USH SERVICE
GENERAL.
Brushes should periodically be inspected to
ensure that they are contacting the slip rings properlyand with sufficient pressure to achieve a good electricalconnection.
! DANGERWARNING
High v
oltage can cause injury or death.
Disconnect, lock open, and tag the powersource which feeds the motor to prevent
power from being applied to the motor whilerepairs are being performed.
Disconnect, loc
k open, and tag the disconnect switchwhich feeds the motor to prevent power from being
applied while repairs are being made.
NOTICE
Oil on the slip r
ings or brushes can causeoperational problems and will reduce slip ring
and brush life. Be sure your hands are cleanbefore handling brushes. Avoid touching
bottom and sides of brushes.Check all brushes to ensure that they make good
contact with the slip rings and that they move freely inthe brush holders.
A constant pressure spring assembly is utilized on mostac motors (see Figure 2). No periodic adjustments arerequired when this type of spring is used. If for any
reason the spring tension is lost, replace the spring andbackup plate as shown.
While inspecting the brushes, the brush pig tail lugsshould be checked to ensure that the attaching screws
are tight and good electrical contact is being made. Aloose screw or poor electrical connection will result in
current flow through the brush holder spring. The springwill then eventually lose its temper and be unable to
apply adequate pressure on the brush.
The brushes should be replaced when they have worn
40 to 60 per cent of their original length. The maximumallowable wear within this range is left to the judgementof the individual maintenance person.
ADJUSTMENT. On some ac motors, an adjustable style
brush holder is used. On this style of brush holder,brush tension will diminish as the brushes wear. The
recommended brush tension is 3-1/2 to 4 pounds persquare inch of brush contact area. Check this tensionperiodically, and correct tension by rotating the
adjusting pin. (See Figure 3.)
Figure 2. Constant Pressure Brush Assembly
-
7/30/2019 manual de motor rotor devanado.pdf
7/12
Morris Material Handling
BULLETIN ED-6-6
7
Figure 3. Adjustable Brush Holder Assembly
Removal From Storage
OPERATING VOLTAGE. Check the power supply to
make sure it agrees with the nameplate data on themotor.
CLEANING. Proceed as follows:
! DANGERWARNING
Compressed air can cause injury or death.When cleaning motors, do not exceed 50 psi
air pressure. Wear appropriate protectiveclothing, safety glasses, and face masks
when using compressed air to clean or dryparts and equipment.
Thoroughly clean the motor with compressed air (do notexceed 50 psi). Cleaning of the brushes and slip r ings iscovered under the topic, Cleaning Brushes.
INSULATION RESISTANCE CHECKS. Measure
insulation resistance of both the stator and rotor using amegger. The minimum resistance should be 1 to 2megohms. Operate the megger for a period of 3 to 4
minutes. During this time, an increase in resistanceshould be noted. If either the initial resistance is low or
resistance does not increase during the 3 to 4 minutesinterval as specified, some moisture has most likely
been absorbed by the insulating material. The windingsmust then be dried as described below.
DRYING THE WINDINGS. Three acceptable methods
of drying windings are presented below:1. Remove the brush inspection cover and direct
warm air from a heating unit with a blower on the
windings inside the motor. Continue until theresistance values specified are achieved.
! DANGERCAUTION
Rapid temperature buildup will cause the
moisture in the windings to vaporize quick-ly, resulting in damage to the windings.Bring the oven temperature up slowly dur-
ing the baking process.2. Disassemble the motor and bake the stator and
rotor in an oven at 240-260 F until the specifiedresistance can be achieved. Be sure the grease is
washed form the rotor bearings following the bakingprocess and replaced with fresh, clean grease. Thisprocedure is described in the preceding topic
Bearing Lubrication.
MOTOR STORAGE
General
The following information is general in nature and
covers all sizes of ac motors. Preparation for the storagein exposed or contaminated areas is presented first.
The balance of the information deals with preparation ofmotor for service that have been stored for an extended
period or have been stored outside.
Preparation for Storage
The following steps should be taken to protect motorsduring storage in contaminated atmospheres and foroutside storage:
1. Completely cover the motor by wrapping with twolayers of waterproof paper. Use one of the following
products, or their equivalents: Oceanwrap Green,Kranz Company Green Core Heavyweight, StraussPaper Marvel Pak 12, or Butler Paper.
2. To provide further protection, it is recommendedthat the brushes be lifted and a piece of vapor
inhibiting paper be inserted between the brushesand the slip rings. For this purpose, use Strauss
Paper Company Corrosion Retarding GreasePaper, or equal.
NOTICE
At least every two months during storage,
slowly hand-rotate the motor shaft to distributethe oil in the grease, as well as to prevent
bearing corrosion due to condensation or thepresence of corrosive gasses in the storage
area.
-
7/30/2019 manual de motor rotor devanado.pdf
8/12
Revised 1/13/05
8 AC Wound Rotor Motors
NOTICE
The following method involves application ofvoltage to the motor terminals. If the motor is to
be rotated during this process, the brushes andslip rings must be checked and the rotor
bearings must be lubricated preceding thedrying process. Fai lure to observe thisprecaution may lead to damage of the rotor
bearings and/or slip rings.
! DANGERWARNING
Hazardous voltage can cause injury ordeath. Before applying voltage to the motor
make sure appropriate warning signs andflashing lights have been used to warn
personnel against accidental contact withelectrical power.
NOTICE
Oil on brushes can cause operational problemsand will reduce brush and slip ring life. Be sure
hands are clean before handling brushes. Donot touch sides or bottom of brushes.
3. After the brushes and slip rings have been cleanedand the rotor bearings are properly lubricated, the
motor can be dried by applying a low voltage to theterminals. The applied voltage should be limited to
one-half the rated voltage if the motor is not rotated.If only a single-phase, low-voltage power source is
available, each phase of the polyphase stator, aswell as the rotor, will need to be energizedindividually at not more than one-fourth the rated
voltage. Continue to apply the recommendedvoltage until the minimum resistance values
specified are achieved.
CLEANING BRUSHES. Proceed as follows:
! DANGERWARNING
Hazardous voltage can cause burns, injury,or death. Disconnect, lock open, and tag thepower source which feeds this device to
prevent power from being applied whileinspection and repairs are being performed.
Disconnect, lock open, and tag the power source whichfeeds this device to prevent power from being applied
while inspection and repairs are being performed.
NOTICE
Oil on brushes can cause operational problemsand will reduce brush and slip ring life. Make
sure hands are clean before handling brushes.Do not touch sides or bottom of brushes.
Lift the brushes from the brush holders and clean thebrush boxes and brush surfaces by either wiping or
blowing out with compressed air.
! DANGERWARNING
Compressed air can cause injury or death.When cleaning motors, do not exceed 50 psiair pressure. Wear appropriate protective
clothing, safety glasses, and face maskswhen using compressed air to clean or dry
parts and equipment.
Compressed air, if used, must be filtered and dry. If the
slip rings need cleaning, polish them to a high glossusing a piece of clean canvas on the end of a wooden
stick or use crocus cloth or fine sandpaper and oil.Never use emery cloth on bronze (or any slip rings),since emery grit is a conductor. After polishing, clean
the rings thoroughly with a suitable solvent to remove allabrasives and foreign materials.
INSPECTING BRUSHES. Proceed as follows:
! DANGERWARNING
Hazardous voltage can cause burns, injury,or death. Disconnect, lock open, and tag the
power source which feeds this device toprevent power from being applied while
inspection and repairs are being performed.
Disconnect, lock open, and tag the power source which
feeds this device to prevent power from being appliedwhile inspection and repairs are being performed.
NOTICE
Oil on brushes can cause operational problemsand will reduce brush and slip ring life. Be surehands are clean before handling brushes. Do
not touch sides or bottom of brushes.
Be sure that the brushes move freely in the holders. If
the motor is equipped with the adjustable type brushholder assembly (see Figure 3) measure the brush
tension and make adjustments as necessary. Thecorrect tension is 3-1/2 to 4 pounds per square inch ofbrush contact area. Examine the slip ring surfaces for
-
7/30/2019 manual de motor rotor devanado.pdf
9/12
Morris Material Handling
BULLETIN ED-6-6 9
corrosion or patterns etched on the slip rings where
brushes were in contact during storage. Slip ringsurfaces can be cleaned, if necessary, as describedabove.
BEARING LUBRICATION. Bearing grease (lubricant)
will gradually deteriorate when the motor is idle forextended periods of time. Bearing grease will become
contaminated during storage in dirty atmospheres oroutdoors. Deterioration, specifically, is the separation ofthe oil from the soap matrix. This leaves only the soap
matrix, which is not in itself a good lubricant. Therefore,if the motor has been stored in a protected area for a
period of 8 months of longer, or in a contaminatedenvironment for a period of 5 months or longer, thegrease must be removed from the bearings and
capsules and the bearings and capsules must berelubricated with fresh, clean grease. Cleaning and
relubricating of the bearings is discussed under thetopic, Bearing Lubrication.
If a motor equipped with externally lubricated bearings,and enclosed in capsules, has been directly exposed to
weather conditions during storage, for any duration, acareful check must be made for droplets of moisture inthe bearing chambers. Such moisture can either be the
result of natural breathing of the bearing chamber orrain entering the chamber. If the grease has been
contaminated with moisture, the contaminated greaseshould be flushed from the bearing and capsule. Then
repack the bearing and capsule as described under thetopic, Relubricating Externally Lubricated Bearings.
-
7/30/2019 manual de motor rotor devanado.pdf
10/12
Revised 1/13/05
10 AC Wound Rotor Motors
PlantNo.
MachineNo.
InventoryNo.
MotorNo.
HP
ManufacturedBy
Series:
Shunt:
Compound:
Synchronous
Induction:
Type:
Frame:
Speed:
Volts:
Amperes:
Phase:
Cycles:
Temp.Rise:
ExcitationAmps.
R
otororArmatuireorServiceNo.
ModelNo.:
FormNo.
ManufacturersNo.:
SerieslNo.:
Mfgrs.OrderNo.:
OurOrderNo.:
Date:
ConnectionDiagram-Rot
ororArmature:
Stator:
Specification:
OPEN
EXP.PROOF
DRIPPROOF
TOTALLYENCL.
VERTICAL
___________
Be
arings:
SLEEVE
BALL
RO
LLER
SHAFTExten
sion
DIA._______________
LENGTH___________
KEYWAY___________
PULLEY
DIA._______________
FACE___________
G
EAR
TEETH.______________
PITCH___________
FACE___________
VBELTDRIVE
No.Grooves_
________
PitchDia.__
_________
A-1/2x11
/32
B-21/32x
7/16
C-7/8X17/32
D-1-1/4X
3/4
MO
TORSERVICERECORD
DateInstalled
Loca
tion
Application
DateRepaired
RepairsorPartsReplaced
Cause
RepairedBy
TotalCost
-
7/30/2019 manual de motor rotor devanado.pdf
11/12
Morris Material Handling
BULLETIN ED-6-6 1
MOTORMAINTENAN
CERECORD
MotorHP
AC
D
C
Type
Frame
RPM
PHASE
CYCLES
VOLTS
DIVISION
SECTION
WINDING
TOOLN
O.
MANUFACTURERSNO.
SERIALNO.
LOCATION-SECITON
COL.NO.
DATEINSTALLED
D
ATEINSTORAGE
DATEINSTAL
LED
DATEINSTORAGE
DATEINSTALLED
DATEINSTORAGE
DRIVESMACHINE
TOOLNUMBER
DRIVESMAC
HINE
TOOLNUMBER
DRIVESMACHINE
TOOLNUMBER
DATE
Blownout
B
earings
EndPlay
BRUSHES&
HOLDER
COMMU
Megger
GENERALCONDITION
INSPECTEDBY
-
7/30/2019 manual de motor rotor devanado.pdf
12/12
Revised 1/13/05
12 AC Wound Rotor Motors
OCM110-B N
AMEOFPART
NO.PER
MOTOR
MANUFACTURERS
NUMBER
PARTSPURCHASED
Date
Qty.
TotalCostD
ate
Qty.
TotalCost
Date
Qty.
Total
Cost
RotororArmatureCoils
StatorCoils
FieldCoils-Shunt
FieldCoils-Series
FieldCoils-Cummutating
AssembledSeg.orColl.Rings
Brushes
Brushholders
BrushholderSprings
BrushholderFingers
Bearing-Front
Bearing-Rear
OilRing-Front
OilRing-Rear