Open and close type nanocrystaylline core

Short Description:

The Current Transformer Core Permeability, the lower measurement error & higher measurement accuracy, The silicon steel Current Transformer Core can not get enough measurement accuracy under the situation of low Ampere-turns of small turn ratios. And the Fe-Ni Permalloy Core’s application are limited because of their low magnetization and high cost. Nano-crystalline cores are getting wider usage for the accuracy grade precious current transformer, because of its high permeability, high magnetization and lower cost in the field of power supply systems, power energy measurement and controlling systems, etc.

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Product Detail

Features

● The adjustable range of permeability（μ10KHz=15000~50000）
● Excellent frequency characteristics
● High saturation magnetic induction strength（ 1.20T）
● Lower eddy current losses
● Excellent temperature stability

Appications

● Switching Mode Power Supply
● UPS Uninterrupted power supply
● Pulse welding equipment
● Power converter

Parameters

Item	Performance
Material Composition	FeCuNbSiB
Thickness（um）	28~35
Saturation induction Bs (T)	1.25
Curie temperature(^oC)	570^oC
Hardness Hv	880
Crystalline temperature Tc(^oC)	500^oC
Saturation magnetostriction	2×10^-6
Initial permeability μ_i	≥80000
Maximum permeability um	≥500000
Density（g/cm³ ）	7.2
electrical resistivity(μΩ.cm)	130
Lamination factor	≥0.8
Operating Temperature Range	-50~120℃

Specification

Part No.	Core dimension			Finished dimention			Note
	OD	ID	HT	OD	ID	HT
JJ8001	80	50	50	85	45	55
JJ7501	75	60	20	80	55	25
JJ8002	80	60	25	85	55	30
JJ8003	80	60	30	85	55	35
JJ10001	100	80	30	105	75	35
JJ12001	120	80	20	125	75	25
JJ11501	115	85	25	120	80	30
JJ12002	120	85	30	125	80	35
JJ11502	115	90	25	120	85	30
JJ12003	120	90	20	125	85	25
JJ13501	135	90	25	140	85	30
JJ13001	130	95	20	135	90	25
JJ1302	130	95	25	135	90	30
JJ14001	140	100	20	145	95	25
JJ17001	170	120	25	175	115	30
JJ19501	195	155	40	200	150	45

Note: The iron core is circular, rectangular, runway type, etc., which can be made according to customer specifications.

Protective box material for PBT, PA66, DMC, cast aluminum, stainless steel, resin coating.

Data Sheet of magnetization Curve of nanocrystalline transformer core (B-H curve)

H(mA/cm)	B(Gs)	μ(×10⁴	H（mA/cm)	B(Gs)	μ(×10⁴	H（mA/cm)	B(Gs)	μ(×10⁴
0.39	50	10.2	0.77	100	10.33	1.39	200	11.45
1.85	300	12.9	2.27	400	14.02	2.62	500	15.19
2.87	600	16.64	3.16	700	17.63	3.38	800	18.83
3.61	900	19.84	3.81	1000	20.89	4.01	1100	21.83
4.38	1300	23.62	4.75	1500	25.13	5.06	1700	26.74
5.35	1900	26.26	5.57	2100	30.00	5.86	2300	31.23
6.11	2500	32.56	6.34	2700	33.89	6.57	2900	35.13
6.82	3100	36.17	7.05	3300	37.25	7.28	3500	38.26
7.56	3700	38.75	7.85	4000	40.55	8.22	4300	41.63
8.64	4600	42.37	9.04	4900	43.13	9.41	5200	43.97
9.84	5500	44.48	10.29	5800	44.85	10.74	6100	45.20
11.06	6300	45.33	11.43	6500	45.25	11.97	6800	45.21
12.51	7100	45.16	12.85	7200	44.59	13.31	7400	44.24
13.79	7600	43.86	14.36	7800	43.22	14.98	8000	42.50
15.66	8200	41.67	16.43	8400	40.68	17.20	8600	39.79
18.31	8800	38.25	19.47	9000	36.78	20.15	9100	35.94
20.98	9200	34.90	21.80	9300	33.95	22.74	9400	32.89
23.68	9500	31.93	24.73	9600	30.89	25.95	9700	29.75
27.43	9800	28.43	29.00	9900	27.17	30.70	10000	25.92