Composite conductor is made by 2~4 pieces single paper wrapped conductor,and broad-brimmed stacked,wrapped multilayer insulating

Product instruction
Composite conductor is made by 2~4 pieces single paper wrapped conductor,and broad-brimmed stacked,wrapped multilayer insulating paper.
Type
2 combination, 3 combination and four combinations and axial combination, etc
Application
For large and medium-sized transformer winding coil
Feature
Obviously increase the filling coefficient of transformer, reduce the volume of transformer, and reduce the cost
Type of insulating paper
telephone paper,cable paper,high density interturn paper,dannisong paper,TYVEK etc.
Product Technical Parameters
Dimension range of conductor
a:0.8~15b:2.0~23
Insulation thickness and deviation
composite conductor	deviation
Δ≤0.60	±0.06
0.60<Δ≤0.90	±0.08
0.90<Δ≤1.50	±0.10
Δ≥1.50	±0.12
dimensional deviation
Conductor dimensional deviation
	Standard size(mm)	National standard deviation(±)	Inner quality standard(bare conductor)	Inner quality standard(paper wrapped bare conductor)
Side a	a≤3.15	0.03	-0.02~0	-0.02~0
	3.15<a≤6.30	0.05	-0.03~0	-0.03~-0.01
	6.30<a≤7.10	0.07	-0.05~0	-0.05~-0.02
	7.10<a≤9.10	0.08	-0.06~0	-0.06~-0.02
Side b	b≤3.15	0.03	-0.02~0	0~+0.02
	3.15<a≤6.30	0.05	-0.03~0	+0.01~+0.03
	6.30<a≤12.50	0.07	-0.05~0	+0.02~+0.05
	12.50<a≤15.00	0.09	-0.06~0	+0.02~+0.06
Corner radius
Corner radius comparison
Range of side a	Angle R	Deviation(±)
1.00<a≤1.60	0.5	25%
1.60<a≤2.24	0.65
2.24<a≤3.55	0.8
3.55<a≤6.00	1
6.00<a≤7.10	1.2
Resistivity
Less than or equal to≤0.017241Ω.M M2/ M
Half hard copper index
Half hard copper performance index
Model	Yield strength	Minimum elongation	Maximum resistivity
C1	100~180	20	1/58
C2	180~200	20	1/57.5
	200~220	15	1/57.5
C3	220~260	15	1/57
Soft state copper index
0.8<a≤2.00	≥30%
2.00<a≤4.00	≥34%
4.00<a≤6.3	≥36%
Monolayer insulating paper breakdown voltage
0.4~0.8KV
Executive standard
GB/T 7673.1-2008GB/T 7673.4-2008