SLIDE 1 TAKING DATA ON FORM TAKING DATA ON FORM-
WOUND MOTORS MOTORS
By: Manuel ”Manny” Garcia, Jr.
SLIDE 2
ACCURATE DATA ACCURATE DATA ACCURATE DATA ACCURATE DATA
Taking accurate data allows the coil Taking accurate data allows the coil manufacturer: manufacturer: manufacturer: manufacturer:
“TO MAKE THE COILS RIGHT “TO MAKE THE COILS RIGHT THE FIRST TIME ” THE FIRST TIME.
SLIDE 3
DATA SHE E T DATA SHE E T DATA SHE E T DATA SHE E T
SLIDE 4
NAME PLATE DATA INFORMATION NAME PLATE DATA INFORMATION NAME PLATE DATA INFORMATION NAME PLATE DATA INFORMATION
SLIDE 5 ME ASURING TOOLS RE QUIRE D ME ASURING TOOLS RE QUIRE D ME ASURING TOOLS RE QUIRE D ME ASURING TOOLS RE QUIRE D
The tools require to take accurate data on form The tools require to take accurate data on form-
wound coils include: coils include:
Steel ruler (12 inch or 300mm)
Steel ruler (12 inch or 300mm)
Steel ruler (3 foot or 1 meter)
Steel ruler (3 foot or 1 meter)
M
i t M i t
Measuring tape
Measuring tape
A combination square (12 inch)
A combination square (12 inch)
Adjustable parallels (
Adjustable parallels (Starrett Starrett S154LZ) S154LZ)
Adjustable parallels (
Adjustable parallels (Starrett Starrett S154LZ) S154LZ)
Vernier
Vernier Calipers (6 inch or 150mm) Calipers (6 inch or 150mm)
Set of micrometers (0 to 2 inches or 0 to 100mm)
Set of micrometers (0 to 2 inches or 0 to 100mm) ( ) ( )
SLIDE 6 Taking Stator Data Taking Stator Data Taking Stator Data Taking Stator Data
Core Bore Diameter Core Bore Diameter Measure and record the largest Measure and record the largest measurement (to nearest 1/16” measurement (to nearest 1/16”
SLIDE 7 TOTAL CORE LE NGTH TOTAL CORE LE NGTH TOTAL CORE LE NGTH TOTAL CORE LE NGTH
Total Core Length This is the length of the iron excluding the finger plates (to nearest 1/16” or 1mm)
- plates. (to nearest 1/16 or 1mm)
SLIDE 8 BACK IRON BACK IRON BACK IRON BACK IRON
This is the distance from the bottom of a slot to the outer edge Back Iron g
- f the stator iron (near the frame). If the back iron dimensions
vary, record the maximum and minimum dimensions (to the nearest 1/16” or 1mm) nearest 1/16 or 1mm).
SLIDE 9
NUMBE R OF VE NTS/ WIDTH OF VE NTS NUMBE R OF VE NTS/ WIDTH OF VE NTS
Measure to the nearest 1/16” or 1mm Measure to the nearest 1/16 or 1mm
SLIDE 10
FINGE R PLATE WIDTH FINGE R PLATE WIDTH FINGE R PLATE WIDTH FINGE R PLATE WIDTH
Measure to the nearest 1/16” or 1mm Measure to the nearest 1/16 or 1mm
SLIDE 11
OVE RALL COIL LE NGTH OVE RALL COIL LE NGTH OVE RALL COIL LE NGTH OVE RALL COIL LE NGTH
Measure to the nearest 1/16” or 1mm
SLIDE 12
CONNE CTION AND E XTE NSION CONNE CTION AND E XTE NSION CONNE CTION AND E XTE NSION CONNE CTION AND E XTE NSION
Measure to the nearest 1/16” or 1mm
SLIDE 13
STRAIGHT LE NGTH STRAIGHT LE NGTH STRAIGHT LE NGTH STRAIGHT LE NGTH
Measure to the nearest 1/16” or 1mm
SLIDE 14
SMALL KNUCKLE DROP SMALL KNUCKLE DROP SMALL KNUCKLE DROP SMALL KNUCKLE DROP
Measure to the nearest 1/16” or 1mm
SLIDE 15
LARGE KNUCKLE DROP LARGE KNUCKLE DROP LARGE KNUCKLE DROP LARGE KNUCKLE DROP
Measure to the nearest 1/16” or 1mm
SLIDE 16
SUPPORT RING FROM CORE SUPPORT RING FROM CORE
Measure to the nearest 1/16” or 1mm Large Motors Have More Than One Support Ring.
SLIDE 17 SUPPORT RINGS INSIDE DIAME TE R SUPPORT RINGS INSIDE DIAME TE R
Measure to the nearest 1/16” or 1mm Measure to the nearest 1/16 or 1mm
*Large Motors Have More Than One Support Ring.
SLIDE 18
SLOT WIDTH SLOT WIDTH SLOT WIDTH SLOT WIDTH
Accuracy of Measurement .005" or 0.1mm
SLIDE 19
COIL TYPE COIL TYPE COIL TYPE COIL TYPE
SLIDE 20
LE AD LOCATION LE AD LOCATION LE AD LOCATION LE AD LOCATION
SLIDE 21 JUMPE R JUMPE R-
CTION CONNE CTION-
CIRCUITS-
SLOTS SLOTS SLOTS
JUMPER
Determine and and record record the the internal internal ti ti f th th il il ( 1 4 1 7) connection connection of
the coil coil group group (e (e. .g g. . 1-4 or
CONNECTION
CONNECTION. Determine Determine and and record record the the connection connection of
the stator stator windings windings: Wye Wye or
Delta connection connection of
the stator stator windings windings: Wye Wye or
Delta.
NUMBER
NUMBER OF OF CIRCUITS CIRCUITS. . Determine Determine and and record record the the number number of
parallel circuits circuits the the number number of
parallel circuits circuits.
NUMBER
NUMBER OF OF SLOTS
Count and and record record the the number number of
stator slots slots number number of
stator slots slots.
SLIDE 22
COIL THROW COIL THROW COIL THROW COIL THROW
SLIDE 23 TURNS PE R COIL TURNS PE R COIL TURNS PE R COIL TURNS PE R COIL
- 1 wire in hand or in parallel = 22 turn terrace wound coil.
- Count several coils to make sure these have the same turns.
SLIDE 24
STRAND INSULATION STRAND INSULATION STRAND INSULATION STRAND INSULATION
Strand Insulation Strand Insulation
Film
Film
Film
Film
Extra heavy film “Quad”
Extra heavy film “Quad”
Single glass
Single glass
Double glass
Double glass g
Mica Taped
Mica Taped
Other
Other
Other
Other
Is the motor used with an inverter?
Is the motor used with an inverter?
SLIDE 25
IRON SKE W IRON SKE W IRON SKE W IRON SKE W
SLIDE 26 IMPORTANT TIPS IMPORTANT TIPS IMPORTANT TIPS IMPORTANT TIPS
Is the stator fully wedged?
Is the stator fully wedged?
Do the wedges have vent groves?
Do the wedges have vent groves? A th d A th d
Are the wedges:
Are the wedges:
Glass
- 100% Magnetic (metal dust and epoxy)
100% Magnetic (metal dust and epoxy) g
Magnetic Permeable
poxy Glass E poxy Glass
Is the blocking special?
Is the blocking special?
Is the blocking special?
Is the blocking special?
Count turns on several coils.
Count turns on several coils.
Take a picture of special features .
Take a picture of special features .
Is the motor operated with an inverter?
Is the motor operated with an inverter?
SLIDE 27
DATA SHE E T IS COMPLE TE DATA SHE E T IS COMPLE TE
“Strip & Wind” “Strip & Wind” Strip & Wind Strip & Wind IS IS NEXT! NEXT!
SLIDE 28
¿Any Questions ¿Any Questions? ?