|
Level
|
PRODUCT /
ITEM DESCRIPTION
|
INSPECTION / TEST DETAILS
|
|
1
|
Motor
|
1 H.V. test
2 Megger test
3 Winding resistance
4 No load running
5 Locked rotor test at reduced voltage
6 Reduced voltage running
7 Direction of rotation
Special Tests :
1 Vibration(LV
motors)
2 Braking Torque (Brake motors)
3 Flame path gap checking (for FLP motors)
|
|
Sample Basis :
1 Full load test
2 Momentary overload test
3 Temperature rise test
|
|
1 Dimensions
2 Visual
a. Name plate
b. Painting
c. Completeness
|
|
2
|
Stator
|
1) Pressing Distance
2) M/ced dimensions
3) Visual
|
|
2
|
Stator packet winding
|
1) H.V. Test
2) Growler Test
3) Winding resistance
4) Visual
|
|
2
|
Rotor
|
1) Pressing distance
2) M/c ed. Dimensions
3) Visual
4) Balancing
|
|
3
|
Stator Pkt.
|
1) O.D.
2) I.D. (only during sample inspection)
3) Core length
4) Visual
|
|
3
|
Rotor Pkt.
|
1) O.D.
2) Core length
3) Visual
|
|
2
|
Shaft
|
1) Machined dimensions
|
|
3
|
Stampings
Stator/Rotor
|
1) Material
2) I.D.
3) O.D.
4) Thickness
5) Visual
|
|
2
|
M/c ed. Items
1) Motor body
2) Endshield
3) Flange
4) Brg. Cover
5) C.I. T.box Parts
6) C.I. Fans
7) Other Part
|
Machined dimensions
|
|
Pressure testing of 1, 2, 3, 4 & 5 items for flame
proof motors
|
|
3
|
Cowl (M.S.)
|
Dimensions
|
|
3
|
Die cast
1) T. Box
2) T.B.Cover
3) Other part
|
1) Dimensions
2) Casting defects
3) Machined dimensions
|
|
3
|
Terminal plates/ bushings
|
1) Studs – Torque test
2) Dimensions (only during sample stage)
3) Insulation resistance
a) As received
b) After immersion in water
c) After heating at 80°C for half hour
(only during sample stage)
4) H.V. test
|
|
3
|
Fans- Plastic
|
Dimensions
|
|
2
|
Magnet yoke
|
1) Dimensions
2) Resistance of coil
3) Insulation Resistance
4) H.V.Test
|
|
3
|
Space heater
|
1) Dimensions
2) Resistance
3) Surface temp.
|
|
3
|
Thermistor
|
1)Resistance
2)Colour code
|
|
3
|
Bars/strips of
1) Copper
2) Brass
3) Ph. Bronze
4) Others
|
1)Dimension
2)Composition
|
|
3
|
Lead Wire
|
1) Dimensions
2) Resistance
3) H.V.Test
|
|
3
|
Cu. Wire
|
1) H.V.Test
2) Abrasion Test
3) Resistance
4) Pin Hole
5) Heat Shock
6) Spring Back
7) Dimensions
8) Flexibility & adherence
|
|
3
|
Sleeves
|
1) Dimensions
2) H.V.Test
|
|
3
|
Insulation Papers
|
1) Dimensions
2) Heat Shock (ageing)
3) H.V. Test
i) As received
ii) After heat shock (ageing)
|
|
3
|
Varnish
|
1) Viscosity
2) Varnish properties
|
|
3
|
Shaft
(Black bar)
|
1)Tensile strength
2)Elongation
3)Hardness (only if T.S exceeds )
4)Composition (only for special applications)
|
|
3
|
Al. ingots
1) LM0
2) LM6
|
Composition
|
|
3
|
Castings
1) Body
2) Endshield
3) Flange
4) Brg. Cover
5) C.I. T.box Parts
6) C.I. Fans
7) Other Part
|
1) Dimensions
2) Casting defects
3) Tensile strength (for flame proof motor parts only)
|
|
3
|
Hardware
|
1) Dimensions
2) Strength-Torque test on sample basis
|
