1. Features：
ØHigh permeability---- minimized current measuring error in CT
ØHigh saturation Induction ,Low core loss -----Lighten core weight and core size compared to permalloy cores: small size and light weight compared to Permalloy C
ØLower weight, smaller size----cost saving greatly than permalloy
ØExcellent Temperature stability---operation temperature 55～130°C for long time
2 Application：
ØBushing current transformer for Epoxy resin cast, Gas insulated or oil-immersed switchgears, LV, MV and HV switchgear, 
ØMetering and protective relaying in the power plants and substations 
ØOther apparatus in electric power transmission and distribution system 
3 Properties：
Comparison of different materials：
 

Property	Nanocrystalline cores	permalloy cores	Si-steel cores
Saturate induction (Bs)	1.25T	0.75T	2.03T
Initial permeability(（µ0)	8～12×104	5～8×104	103
Maximum permeability（µm）	60×104	60×104	4×104
Curie temperature（℃）	570	400	740
Density（g/cm3）	7.25	8.75	7.65
Stacking factor	0.7	0.9	0.95
Thickness (mm)	0.03	0.15	0.3

 

　　3． Specifications and electric parameters:

 

 

Part  No.	Core dimensions（mm）  OD×ID×Ht	Case dimensions（mm）  OD×ID×Ht
NC-P 1259025	125×90×25	130×85×30
NC-P 14010025	140×100×25	145×95×30
NC-P 24518035	245×180×35	250×175×41
NC-P 33028540	330×285×45	335×280×52
NC-P 37032050	370×320×50	375×315×57
NC-P 45541515	455×415×15	460×410×20
NC-P 57745620	577×456×20	584×450×25
NC-P 67563515	675×635×15	681×629×20
NC-P 60046065	600×460×65	606×454×73
NC-P 85072025	850×720×25	857×713×31
NC-P 105080035	1050×800×35	1058×792×42

 Remark：1)To the specification in the form, cores can be made for meeting user's need.
2) The maximal OD size we can make is 1300mm.
3) case material: plastic case, stainless steel, aluminum