1. Features：
High permeability---- minimized current measuring error in CT
High saturation Induction ,Low core loss -----Lighten core weight and core size compared to permalloy cores: small size and light weight compared to Permalloy Lower weight, smaller size----cost saving greatly than permalloy
Excellent Temperature stability---operation temperature 55～130°C for long time
2. Application：
Bushing current transformer for Epoxy resin cast, Gas insulated or oil-immersed switchgears, LV, MV and HV switchgear,
Metering and protective relaying in the power plants and substations Other 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 |
4. Specifications and electric parameters:
Part No. | Core dimensions（mm） | Case dimensions（mm） |
OD×ID×Ht | OD×ID×Ht | |
| NC-P 604020 | 60×40×20 | 63×37×24 |
| NC-P 805020 | 80×50×20 | 84×47×25 |
| NC-P 805025 | 80×50×25 | 84×47×29 |
| NC-P 905030 | 90×50×30 | 94×46×34 |
| NC-P 1005025 | 100×50×25 | 104×46×29 |
| NC-P 1207030 | 120×70×30 | 125×65×35 |
| NC- P 1208025 | 120×80×25 | 125×75×30 |
| NC- P 1259025 | 125×90×25 | 130×85×30 |
| NC- P 12010025 | 120×100×25 | 126×94×31 |
| NC- P 14010025 | 140×100×25 | 146×94×31 |
| NC- P 17012025 | 170×120×25 | 176×114×31 |
| 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
