Nomex Transformer Insulation

Description

Nomex transformer insulation is a high-quality product used in electrical transformers to improve their performance and longevity. This insulation material has several properties that make it a popular choice for use in transformers.

One of the most significant advantages of Nomex transformer insulation is its superior resistance to high temperatures and flames. This material can withstand high temperatures of up to 220 degrees Celsius and can even resist flames in the event of a fire. This quality is essential for transformers, as they generate a lot of heat during operation, and thus the materials used in their insulation must be heat-resistant.

Another advantage of Nomex transformer insulation is its excellent electrical insulation properties. This ensures that it maintains a strong dielectric strength under the high voltage conditions present in transformers. This trait helps to increase the lifespan of transformers, ensuring their safe operation.

Nomex transformer insulation is also highly durable and has excellent mechanical properties. This makes it resistant to wear and tear, ensuring that it provides long-lasting, reliable performance. Additionally, it does not absorb moisture, ensuring that it remains in optimal condition, even in humid environments.

In conclusion, Nomex transformer insulation is a high-quality material that is essential for the proper functioning of transformers. Its superior heat resistance, electrical insulation properties, and durability make it a popular choice among transformer manufacturers. The use of Nomex transformer insulation ensures that transformers perform optimally, helping to ensure the uninterrupted supply of electricity to homes and businesses around the world.

Item		Unit	Requirement
Nominal thickness		mm	0.15	0.17	0.19	0.22	0.24	0.26	0.31	0.37	0.41
Thickness tolerance		mm	±0.022				±0.024	±0.026	±0.031	±0.037	±0.041
Grammage		g/m2	150±18	170±20	200±24	230±27	270±32	305±36	360±43	450±54	515±61
Film nominal thickness		um	36	50	75	100	125	150	188	250	300
Tensile strength	MD no bending	N/10mm	≥150	≥150	≥170	≥190	≥220	≥240	≥270	≥330	≥370


	MD after bending		≥90	≥90	≥105	≥120	≥150	≥180	≥200	≥300	≥330
	TD no bending		≥80	≥90	≥100	≥110	≥130	≥170	≥200	≥250	≥300
	TD after bending		≥70	≥70	≥90	≥100	≥120	≥150	≥150	≥200	≥230
Elongation (%)	MD	%	≥15				≥3

	TD		≥20					≥10
Breakdown voltage	No bending	KV	≥7	≥8	≥11	≥12	≥14	≥16	≥19	≥23	≥25

	After bending		≥6	≥7	≥9	≥10	≥12	≥14	≥15	≥18	≥19
Delamination		—	No Delamination, no bubble or other defects
Heat affected (180±2℃) 10min			No Delamination, no bubble, no adhesive flow
Long-term heat resistance (temperature index TI)			≥155
Weight and area conversion		m2/Kg	7.23	6.33	5.18	4.39	3.8	3.36	2.85	2.28	1.97