Products

Enamelled Rectangular Winding Wires

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Enamelled Rectangular Copper Wires are used in low and medium voltage electrical machines such as motors, generators and transformers. The cross section of these wires ranges from 3.0 to 75.0 square millimetre with an insulation Class ranging from 105 to 220 degrees Celsius.

Rectangular Enamelled Copper Wires

  • Poly Vinyl Acetal, Class 105, 130
  • Polyester, Class 130 and 155
  • Polyesterimide 180
  • Dual Coated Polyester (imide) + Polyamide imide, Class 200
  • Polyamide imide, Class 200
  • Polyesterimide Bondable, Class 155 and 180
  • And Other insulation Coatings according to customer specifications

Product Range

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SPECIFICATION STANDARDIEC-60317-17 NEMA MW-18CIEC-60317-18IEC-60317-16IEC-60317-28IEC-60317-29/ NEMA MW-36CIEC-60317-30 IEC-60317-47 NEMA MW-20CIEC-60317-58 draft)
THERMAL CLASS105120155180200220/240220120180
Chemical base of base coatPolyvinyl AcetalPolyvinyl AcetalPolyesterPolyesterimidePolyesterimidePolyimidePolyamide-imidePolyvinyl AcetalPolyesterimide
Chemical base of Top coatPolyamide-imideEpoxy-Bond coatEpoxy-Bond coat
Range of Wire (Diameter)Cross section area up to 80 sp.mm, Thickness : from 1.3-8 mm, Width : from 2.0-16 mmCross section area up to 80 sp.mm, Thickness : from 1.3-8 mm, Width : from 2.0-16 mmCross section area up to 80 sp.mm, Thickness : from 1.3-8 mm, Width : from 2.0-16 mmCross section area up to 80 sp.mm, Thickness : from 1.3-8 mm, Width : from 2.0-16 mmCross section area up to 80 sp.mm, Thickness : from 1.3-8 mm, Width : from 2.0-16 mmCross section area up to 80 sp.mm, Thickness : from 1.3-8 mm, Width : from 2.0-16 mmCross section area up to 80 sp.mm, Thickness : from 1.3-8 mm, Width : from 2.0-16 mmCross section area up to 80 sp.mm, Thickness : from 1.3-8 mm, Width : from 2.0-16 mmCross section area up to 80 sp.mm, Thickness : from 1.3-8 mm, Width : from 2.0-16 mm
Insulation RangeIEC Grade 1:0.060-0.110, IEC Grade 2:0.120-0.179; NEMA Grade Heavy : Increase in thickness : 0.076-0.127, Grade Quadruple : increase in thickness : 0.127-0.178 mmIEC Grade 1:0.060-0.110, IEC Grade 2:0.120-0.179;NEMA Grade Heavy : Increase in thickness : 0.076-0.127, Grade Quadruple : increase in thickness : 0.127-0.178 mmIEC Grade 1:0.060-0.110, IEC Grade 2:0.120-0.179;NEMA Grade Heavy : Increase in thickness : 0.076-0.127, Grade Quadruple : increase in thickness : 0.127-0.178 mmIEC Grade 1:0.060-0.110, IEC Grade 2:0.120-0.179;NEMA Grade Heavy : Increase in thickness : 0.076-0.127, Grade Quadruple : increase in thickness : 0.127-0.178 mmIEC Grade 1:0.060-0.110, IEC Grade 2:0.120-0.179;NEMA Grade Heavy : Increase in thickness : 0.076-0.127, Grade Quadruple : increase in thickness : 0.127-0.178 mmIEC Grade 1:0.060-0.110, IEC Grade 2:0.120-0.179;NEMA Grade Heavy : Increase in thickness : 0.076-0.127, Grade Quadruple : increase in thickness : 0.127-0.178 mmIEC Grade 1:0.060-0.110, IEC Grade 2:0.120-0.179;NEMA Grade Heavy : Increase in thickness : 0.076-0.127, Grade Quadruple : increase in thickness : 0.127-0.178 mmIn addition to base coat increase in dimensions, additional bond coat increase in thickness of 0.030-.0.050 mmIn addition to base coat increasein dimensions, additional bond coatincrease in thickness of0.030-.0.050 mm
Standard colourGolden YellowGolden YellowBrownBrownBrownLight BrownLight BrownGolden YellowBrown
TECHNICAL PROPERTIES AS PER IEC-60317-0-2
Flexibility & Adherence
:Mandrel Bending on thickness on width2-3 t & 3-4 W2-3 t & 3-4 W3-4 t & 4-6 W3-4 t & 4-6 W3-4 t & 4-6 W3-4 t & 4-6 W3-4 t & 4-6 W2-3 t & 3-4 W3-4 t & 4-6 W
:Adherence (no crack after stretching %)151515151510151515
Heat Shock No cracks after bending on thickness/ Temperature °C2-3 t/1552-3 t/1556 t/1756 t/2006 t/2006 t/2606 t/2402-3 t/1556 t/200
Break down voltage at Room temp. (minimum) VoltsGrade 1 : > 1000, Grade 2: >2000
Resistance to hot transformer oilExcellentExcellentNot applicableExcellentExcellentNot applicableNot applicableExcellentExcellent
Heat Bonding temperature/TimeNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicable110 C/48 h or 120 C/24 h
SPECIAL CHARACTERSISTICS & APPLICATIONHigh mechanical strength, strong adhesion of enamel to copper conductor, Excellent hydrolysis & oil resistanceHigh mechanical strength, strongadhesion of enamel to copperconductor, Excellent hydrolysis& oil resistanceGood thermal, and overall good mechanical, electrical and chemical propertiesHigh thermal, and overall good mechanical, electrical and chemical resistanceHigh thermal, electrical and mechanical, properties, excellent heat shock and burnoutVery high thermal propertiesVery high thermal propertiesBondable coating with excellent mechanical propertiesBondable coating with excellent thermal properties
Delivery SpoolsPlease refer to DELIVERY SPOOLS for Sizes & Respective Spool TypesPlease refer to DELIVERY SPOOLS for Sizes & Respective Spool TypesPlease refer to DELIVERY SPOOLS for Sizes & Respective Spool TypesPlease refer to DELIVERY SPOOLS for Sizes & Respective Spool TypesPlease refer to DELIVERY SPOOLS for Sizes & Respective Spool TypesPlease refer to DELIVERY SPOOLS for Sizes & Respective Spool TypesPlease refer to DELIVERY SPOOLS for Sizes & Respective Spool TypesPlease refer to DELIVERY SPOOLS for Sizes & Respective Spool TypesPlease refer to DELIVERY SPOOLS for Sizes & Respective Spool Types
Special NotesOil filled power & distribution transformers, Inductance coils, etc.Oil filled large transformers Loco transformers, chokes & Inductance coils, etc.Large rotating Machines such as: motors,DC motors,High Voltage motors, etc.Large and special electrical machines such as: generators, alternators, Motors, HV motors, Dry type transformers, Inductor coils, etc.Large and special electrical machines such as : generators, alternators, Motors, HV motors, Dry type transformers, Inductor coils, etc.Special electrical machine and magnet coils for aerospace industryLarge and special electrical machines such as : generators, Motors, HV motors, Dry type transformers, Inductorcoils, etc.Oil filled large transformers, Loco transformers, chokes & Inductance coils, particularly with improved mechanical strength(hoop stress) to resist high short circuit currents.Oil filled large transformers, Loco transformers, chokes & Inductance coils, particularly with improved mechanical strength(hoop stress) to resist high short circuit currents.

Engineering Data

Cross Section area=wxt-0.8584 r² mm²

Where
W = Conductor Width in mm
t = Conductor Thickness in mm
And    r = Corner Radius in mm

 

Weight of Copper Conductor
Weight in kg/km = 6.982 x d²

Where
d = Conductor dia in mm
and Copper density = 8.890 g/cc

Delivery Spools

DIMENSION OF DRUMS (All dimensions in mm)

Flange DiaBarrel DiaTraverseFlange ThickBore DiaCatch hole DistanceSlot/hole on barrelNo.of iron tubeWt. Kgs.
450300200183812015550
450300240183812015565
5003002401838120155110
5603002401838120155160
6504002402038120156200
7104003002038120157225
7104003002038120157200
7604603002238120158260
760**5603002238140158225
810**56030025381401510240
860**56030025381401510290
910**56030025381401510380

Note:  

  1. Catch hole dia for all the drums will be 16mm.
  2. **One additional hole of 18mm to be provided on flande at 290mm distance from centre.

Ordering Info

We need the following information from our valued clients to understand fully your requirement and deliver the right product :
  • Size : Width X Thickness
  • Type of Insulation and thermal class, e.g. Polyester imide, Class 180 or Dual coated Polyester + Polyamide imide Class 200 or Polyurethane solderable, Class 155, etc.
  • Grade of insulation (thickness), e.g. Grade 1 or 2 or 3, or Single, heavy or triple.
  • Specification reference : e.g. IEC 60317-28 or IEC 60317-13 or NEMA etc. We can also supply as per Customer drawn Specification
  • Packing : Spool size required (for specific Type please refer to Delivery Spools).
  • Net Quantity : Quantity of Wire required, e.g. 2500 kg.(Minimum quantity at a time per size shall be either 1000 KGs or as mutually agreed upon)
For any other special requirement, please address your query to our Marketing Department in Mumbai by e-mail marketingstrip@pwil.net