Technical Article

SCRBH15 Amorphous Alloy Dry-Type Transformer

04-10 2025 | By:

SCRBH15 Amorphous Alloy Dry-Type Transformer

Amorphous alloy dry-type transformers use advanced amorphous alloy materials, effectively reducing no-load losses by up to 60%-80%. China Electric Power’s amorphous alloy transformers have become the ideal choice for major data centers with their green and energy-saving environmental performance and excellent electrical performance, helping computing centers to usher in a new era of efficient, green and energy-saving electricity!

Amorphous Alloy Dry-Type Transformer Advanced technology

Unique semi-encapsulated three-phase three-column patented technology
Small size, light weight, resistant to high-order harmonics
Independent amorphous alloy core production line and production process

High efficiency and energy saving

Adopt amorphous alloy strip, high mechanical strength
No-load loss is reduced by 60%-80%, no-load current is reduced by 70%-85%

Nomex® insulation paper

Continuously placed at 220℃ can maintain effective performance for more than 10 years
200℃ UL material temperature, 3500v withstand voltage test

Amorphous Alloy Dry-Type Transformer Durable

Strong short-circuit resistance, long service life
Dustproof, moisture-proof, salt spray-proof
Excellent “three-proof” ability, no cracking

Amorphous Alloy Dry-Type Transformer 3D Design

Based on more than 30 years of experience in design, manufacturing and testing in the transformer industry, ZTELEC has developed a set of advanced “3D + parametric” design software that can realize automated design and cost optimization, simulation and emulation, fully considering national and industry standards and requirements to ensure the advanced design of products.

Low-voltage foil wound coil

It is made of high-quality copper foil and H-class insulation material wound on a molded insulation cylinder. The layer insulation is made of Nomex® paper, and VPI vacuum pressure impregnation is formed into a solid whole. The upper and lower ends are sealed with resin. The lead copper bar and copper foil are welded by argon arc with special equipment. The coil has high mechanical strength, strong short-circuit resistance, dustproof, moisture-proof and salt spray-proof capabilities.

High-voltage winding coil

The multi-layer segmented cylindrical coil and longitudinal multi-airway structure are used. They have strong heat and shock resistance and surge resistance. The conductor is Nomex® paper-wrapped flat copper wire, the insulation is Nomex® paper, and the end insulation is H-grade material. The high and low voltage coils are wound together, and the coils are cured by VPI vacuum pressure impregnation and high-temperature baking. The coils are a solid whole. The upper and lower ends are sealed with resin, which has good heat dissipation performance and will never crack.

Amorphous Alloy Dry-Type Transformer Core

The core structure is simple, and the iron loss is 70%-80% lower than that of conventional products. The unique process makes it have high mechanical strength, and its characteristics and structure will not be affected by transportation and vibration.

Testing and inspection technology

All products strictly control the production process and quality links. Before leaving the factory, ZTELEC conducts strict testing and inspection according to national standards and customer customization requirements, including partial discharge inspection, lightning impulse inspection, noise inspection and other mandatory inspection items. Advanced testing equipment and a complete inspection and testing system ensure the high quality of the products.

Performance Parameters

Rated capacity (kVA)	Voltagegroup			Impedance voltage(%)	SC(B)10			Sound leve (dB)	Dimension(mm)			Weight(kg)
Rated capacity (kVA)	HV(kV)	Tap range	LV(kV)	Impedance voltage(%)	No-loadloss (W)	Loadloss120℃ (W)	No-load curren (%)	Sound leve (dB)	L	W	H	Weight(kg)
30	10 11 10.5 6.6 6.3 6	±2×2.5% ±5%	0.4	4	190	710	2.0	44	620	400	600	220
50					270	1000	2.0	44	650	400	740	320
80					370	1380	1.5	45	750	500	770	460
100					400	1570	1.5	45	800	500	830	580
125					470	1850	1.3	46	950	880	1090	750
160					540	2130	1.3	46	950	880	1090	780
200					620	2530	1.1	47	1050	900	1200	850
250					720	2760	1.1	48	1050	900	1200	1030
315					880	3470	1.0	48	1080	900	1250	1060
400					980	3990	1.0	49	1110	950	1270	1400
500					1160	4880	1.0	49	1130	950	1380	1550
630					1340	5880	0.85	49	1200	950	1450	1820
630				6	1300	5960	0.85	50	1320	950	1375	1850
800					1520	6960	0.85	51	1310	1000	1315	2150
1000					1770	8130	0.85	52	1400	1070	1520	2550
1250					2090	9690	0.85	53	1440	1150	1570	3020
1600					2450	11730	0.85	54	1650	1200	1795	4500
2000					3050	14450	0.7	55	1800	1260	1870	5300
2500					3600	17170	0.7	56	1950	1260	2035	6200

Rated capacity (kVA)	Voltagegroup			mpedance voltage(%)	SC(B)11			Sound eve (dB)	Dimension(mm)			Weight(kg)
Rated capacity (kVA)	HV(kV)	Tap range	LV(kV)	mpedance voltage(%)	No-loadloss (W)	Loadloss120℃ (W)	No-load current (%)	Sound eve (dB)	L	W	H	Weight(kg)
30	10 11 10.5 6.6 6.3 6	±2×2.5% ±5%	0.4	4	170	710	2.0	44	620	400	600	220
50					250	1000	2.0	44	650	400	740	320
80					330	1380	1.5	45	750	500	770	460
100					360	1570	1.5	45	800	500	830	580
125					420	1850	1.3	46	950	880	1090	750
160					490	2130	1.3	46	950	880	1090	780
200					560	2530	1.1	47	1050	900	1200	850
250					650	2760	1.1	48	1050	900	1200	1030
315					790	3470	1.0	48	1080	900	1250	1060
400					880	3990	1.0	49	1110	950	1270	1400
500					1040	4880	1.0	49	1130	950	1380	1550
630					1210	5880	0.85	49	1200	950	1450	1820
630				6	1170	5960	0.85	50	1320	950	1375	1850
800					1370	6960	0.85	51	1310	1000	1315	2150
1000					1590	8130	0.85	52	1400	1070	1520	2550
1250					1880	9690	0.85	53	1440	1150	1570	3020
1600					2210	11730	0.85	54	1650	1200	1795	4500
2000					2750	14450	0.7	55	1800	1260	1870	5300
2500					3240	17170	0.7	56	1950	1260	2035	6200