Smart Meter DC Immune CT Core

Introduction

Smart Meter DC Immune CT Core

Here we'd like to introduce the our production process about current transformer core-DC immune CT core.
Firstly, prepare material, need to choose the high quality amorphous ribbon and nanocrystalline ribbon.
Secondly, winding, use the full automatic winding machine to winding the amorphous strip and nano-crystalline strip to get the wound amorphous core and toroidal nano core, Thirdly, testing, test bare cores 100%, if customer's order have different models and different demand, then it is necessary. Such as 60A,100A hybride cores.
Fourthly, use the annealing furnace to heat treat the Fe-based magnetic cores to get the performance which customer need.
Finally, pack the high saturation toroidal cores according to customer's demand.

Application

Used in leakage protection switch

1. High permeability
2. Low coercivity
3. Low loss
4. Excellent anti-saturation ability
5. Excellent temperature stability

Feature

FEATURE 1

Better temperature stability

FEATURE 2

High saturation magnetic induction

FEATURE 3

High permeability and low coercivity

FEATURE 4

Effectively reduce the transformer volume and the weight

FEATURE 5

It can work for a long time at the temperature of -45℃~130℃

FEATURE 6

High-power design - to meet the customization of large-sized iron cores

Representative model

Dual Core	Bare Core Size(mm)	Core size with plastic case(mm)	Class grade	Max current apply
	ID×OD×HT	ID×OD×HT	Class grade	Max current apply
	Φ14×20×10	Φ12.1×22.5×12.2	0.5-0.1	60A
	Φ14×21×08	Φ12.50×23.05×9.6	0.5-0.1	60A
	Φ15×21×10	Φ12.8×23.6×12.8	0.5-0.1	60A
	Φ16×21×10	Φ14.0*24.7×12.5	0.5-0.1	60A
	Φ16×21×10D	Φ13.8×24.9×12.2	0.5-0.2	80-100A
	Φ16×23×10	Φ14.0×25.0×13.0	0.5-0.1	60A
	Φ16×25×8	Φ13.7×27.8×10.8	0.5-0.1	60A
	Φ17×22×10	Φ15.3×24.4×12.3	0.5-0.1	60A
	Φ17×24×8	Φ15.3×26.3×9.9	0.5-0.1	60A
	Φ17×25×10	Φ15.6×28.0×12.8	0.5-0.1	80A
	Φ18×24×10	Φ15.8×26.6×12.8	0.5-0.1	60-100A
	Φ19×26×10	Φ15.8×26.6×12.9	0.5-0.1	60-100A
	Φ19×27×8	Φ16.6×29.3×9.8	0.5-0.2	60-100A
	Φ19×27×12	Φ17.1×28.9×13.9	0.5-0.1	100-120A
	Φ20×30×8A	Φ18.0×32.7×9.8	0.5-0.2	100-120A
	Φ23×33×15	Φ21.2×36.2×18.1	0.5-0.1	200A
	Φ25×32×10	Φ18.8×32.1×13.8	0.5-0.1	60-80A
	Φ15.5×24×8	Φ13.7×26.3×9.9	0.5-0.1	60A
	Φ17×28×8	Φ15.2×29.8×10.1	0.5-0.1	65A
	Φ21×29×10	Φ18.8×32.1×13.8	0.5-0.1	80A
	Φ18×28×15	Φ16.0×30.2×17.6	0.5-0.1	100A
	Φ19×28×12	Φ17.1×30.2×13.9	0.5-0.1	120A
	Φ48×60×15	Φ46.0×64.0×19.5	0.5-0.1	200A