Transformer bobbin

Product Features：

Product type: Epoxy resin
Inner/Out Dia.(mm) According to the drawing
Height (mm): According to the drawing
Voltage Level(kv)：10—35

Skeleton index of amorphous alloy

Item	Property	Unit	Requirement	Test result
1	Thickness	mm	±0.5	0.32
2	Apparent density	G/cm2	≥1.70	1.85
3	Moisture content	%	≤0.4	0.38
4	Compressibility	MPa	≥200	206
5	Apparent modulus of elasticity perpendicular to laminations	MPa	≥158	161
6	Shearing strength test for glue line bond	MPa	≥24	24.8
7	Contamination of liquid dielectrics(50Hz，Δtanδ)		≤0.04	0.037
8	Volume resistivity: normal time	Ω.m	≥1×1011	1.9×1011
9	180℃±2℃	Ω.m	≥1×102	1.87×102
10	After immersion 25h	Ω.m	≥1×102	1.82×102
11	Heat resistance grade	℃	≥130	135
12	Breakdown voltage parallel  to the laminations（in  90℃±2℃ 25# transformer oil）	Kv	≥25	26.3