Current transformer core

Application fields:

Replace permalloy and silicon steel sheet as the following current transformer core:

Core of precision current transformer for watt hour meter and transmitter

Current transformer core for substation measurement and protection (accuracy 0.5-0.01, rated voltage 0.5-500kv)

Performance features:

Saturated magnetic induction strength is between silicon steel sheet and permalloy, with high permeability and light weight

Performance index:

Comparison of magnetic properties of iron-based super microcrystalline iron core with permalloy and silicon steel sheet

Basic magnetic parameters super microcrystalline core permalloy 1J85 silicon steel sheet

Saturation magnetic induction strength BS (T) 1.25 0.76 2.03

Initial permeability (GS / OE) 40000-80000 50000-80000 1000

Maximum permeability (GS / OE) > 200000 > 200000 40000

Density (g / cm3) 7.2 8.75 7.65

Curie temperature (℃) 570 400 740

Strip thickness (mm): 0.025 ～ 0.035 0.15 0.3

Core lamination coefficient > 0.70 0.9 0.95