Nanocrystalline CORE

Nanocrystalline CORES & Magnetic CORES

• Properties
• Product Code
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• Application area

  Current transformer for power system, precision measuring instrument.

  Performance Characteristics

  For Power Systems: The saturated magnetic inductance BS of nanocrystal alloy is between light and Bono alloy, and the lower the BS value is, the lower the security coefficient of the instrument is. When the system fails and produces a large current passing through the current transformer, the more easily the iron core is saturated and the secondary current no longer rises proportionately, thus protecting the secondary instrument from damage, The permeability of the nanocrystal alloy is close to that of Porno alloy, which is one order of magnitude higher than that of silicon steel.

  For Precision Instrument: The iron-based nanocrystalline alloy material has a high initial magnetic permeability and is stable in performance, and is particularly suitable for use as a magnetic device in high-sensitivity occasions so as to ensure that the iron-based nanocrystal alloy materiel is rapid, accurate and good in stability. The cold-rolled silicon steel sheet can not reach the precision requirement according to the measurement accuracy grade requirement (0.5- 0.01 level, the rated voltage of 0.5 -500kv), the price requirement, the small change ratio, the low turn-to-turn number, or the size of the iron core is limited due to the volume requirement. Although the high-permeability glass-Pio alloy can meet the precision requirement, the price is high. The adoption of the nanocrystalline iron core not only can achieve the precision requirement, but also the price is lower than that of the glass-glass alloy.

  
  
  

  Performance Indicators:

  Basic Magnetic Parameters	Nanocrystal Iron Core	Glass-glass Core	Silicon Steel Sheet Iron Core
  Saturation Induction Density(T)	1.25	0.76	2.03
  Oinitial Permeability(Gs/Oe)	80000	70000	1000
  Maximum Permeability(Gs/Oe)	600000	600000	40000
  Density(g/cm)	7.8	8.75	7.65
  Curie Temperature(C)	570	400	740

• Main Characteristics

  • 1. High Permeability – Greatly improve the accuracy of transformer and reduce the specific difference.
  • 2. Light Weight and Low Cost – The price is significantly lower than that of BEOMO alloy.
  • 3. Low loss(equivalent to 1/3-1/5 of silicon steel sheet)--reduce the temperature rise of the product and improve the efficiency.
  • 4. Excellent Stability – It can work at 55-130 degree C for A long time.
  • 5. Higher Saturated Flux Density – Extended current measurement range.

  Properties of products

  Iron core size(mm)			Net Sectional Area(mm2)	Average Magnetic Circuit Length(mm)	Volume(cm3)
  40	50	35	140	141.3	19.8
  45	66	30	252	174.3	43.9
  45	75	25	300	188.4	56.5
  48	68	30	240	182.1	43.7
  48	72	35	336	188.4	63.3
  50	85	25	350	211.9	74.2
  50	85	30	420	211.9	89.1
  57	74	30	204	205.7	42
  60	85	30	300	227.7	68.3
  70	85	28	168	243.4	40.9
  70	120	30	600	298.3	179.1
  70	115	30	480	298.3	143.3
  85	115	30	360	314	113.1
  85	125	25	400	329.7	131.9
  87	112	25	250	312.4	78.1
  90	120	25	300	329.7	118.8
  90	120	30	480	345.4	165.9
  90	130	30	360	369	132.9
  95	140	20	480	376.8	181
  100	140	30	360	376.8	135.7
  105	135	30	560	431.8	241.9
  120	155	40	810	463.15	375.3
  125	170	45	30	30	30
  130	190	20	480	502.4	241.3

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