160w Toroidal Transformer Core Silicon Steel Permalloy Iron Cores Nst25161e

160W Toroidal Transformer Core Silicon Steel Permalloy Iron Cores NST25161E

Quick details

Current transformer of power system

High permeability

High saturation Induction

Excellent thermal stability

Applications

Current transformer of power system plays an important role in providing a current in its secondary winding proportional to the alternating current flowing in its primary. They are commonly used in metering and protective relaying in the power plants and substations where they facilitate the safe measurement of large currents, often in the presence of high voltages. The current transformer safely isolates measurement and control circuitry from the high voltages typically present on the circuit being measured.

Comparing with the traditional core material, such as silicon steel and permalloy, Iron based nanocrystalline alloy takes the advantage of high permeability and low cost, it is more competitive in the application of precision current transformer with 0.2,0.2s,0.1 accuracy class, Bushing current transformer for Epoxy resin cast, Gas insulated or oil-immersed switchgears, LV, MV and HV switchgear, and other apparatus in electric power transmission and distribution system.

 

Advantages of nanocrystalline alloy core

• High permeability―lead to minimized current measuring error in CT
• High saturation Induction ―lead to small size and light weight compared to Permalloy CT
• Excellent thermal stability―Can work at -55~130°C for long time
• Low cost:Ideal for substitute of permalloy cores commercially

Item No.	specification	Package	Size(mm)			Le(cm)	Ac(cm2)	Wa(cm2)	Ap(cm4)	Transfer power (20kHz)P(W)
	(mm)		External diameter	Internal diameter	Highth
NST201208E	20×12×8	case	21.8	10.6	10	5.02	0.24	2.26	0.55	100
NST251610E	25×16×10	epoxy	26	15.2	8.9	6.44	0.34	4.02	1.37	160
NST302015E	30×20×15	case	33.1	17.8	17.5	7.85	0.57	6.28	3.58	350
NST402515E	40×25×15	case	43.2	21.9	18.9	10.21	0.86	9.81	8.39	600
NST504020E	50×40×20	epoxy	53	38	23	14.13	0.76	25.12	19.09	1,200
NST805020E	80×50×20	epoxy	83	48	23	20.41	2.28	39.25	89.49	4,000
NST805025E	80×50×25	epoxy	83	48	28	20.41	2.85	39.25	111.86	5,000
NST1008025E	100×80×25	epoxy	104	76	28	28.26	1.9	100.48	190.91	6,000
NST13010025E	130×100×25	epoxy	134	96	28	36.11	2.85	157	447.45	10,000