Amorphous & Nanocrystalline Cores

• Phase: Three
• Core: Amorphous Alloy Transformer
• Cooling Method: Dry-type Transformer
• Winding Type: Auto-transformer
• Usage: Distribution Transformer
• Shape of Core: All

Product Description

Amorphous & Nanocrystalline cores are used for distribution transformers, instrument transformers, current transformers for electronic energy meter, zero-phase sequence current transformers for earth leakage circuit breaker, common mode chokes, power transformers and inductors for inverter power supply.

Precision current transformer core - ONM series
Applications:

Electronic Watt hour meter
Precision power meter
Current overload protection in engine control
Current control in automation industry
Features:

High permeability, which lead to low phase and amplitude error
Very high saturation flux density compared with Permalloy, which bring higher measurement current range
Low core losses which lead to low amplitude
Good temperature stability

Standard Material Characteristics

Material Iron-based nanocrystalline alloy
Saturation Flux Density Bs (T) 1.25
Permeability ( μ ) at 0.08 A/m 30000-120000
Coercive Force Hc (A/m) 0.8
Curie Temperature (° C) 560
Mass Density d (kg/m3) 7.2X103

Part No.	Case Size (mm)			Properties
	OD'	ID'	HT'	N1:N2	IIN (mA) 50Hz	V0 (mV) min
ONM-181305	19.6	11.6	6.4	1:1	2.73	0.006
ONM-191406.5	22.3	12.0	9.5	1:1	50	2.00
ONM-191408	21.6	12.0	11.0	1:1	50	2.00
ONM-211310	24.0	11.6	13.0	1:1	6.14	0.15
ONM-211420	24.7	11.3	23.0	1:1	50	9.00
ONM-211604.5	24.0	14.5	7.0	1:1	10	0.02
ONM-211610	24.5	14.2	12.7	1:1	10	0.25
ONM-231610	25.0	14.1	13.0	1:1	6.9	0.15
ONM-251904.5	28.0	17.5	7.2	1:1	10	0.02
ONM-261810	28.9	16.6	13.0	1:1	10	0.25
ONM-281815	31.0	15.2	17.7	1:1	4.07	0.12