CEEG Amorphous Alloy Dry-Type Power Distribution Transformer

CEEG Amorphous Alloy Dry-Type Power Distribution Transformer-lzfp.jpg

An amorphous alloy dry-type transformer is a new type of low-loss dry-type transformer. Its most significant feature is low no-load loss and obvious energy-saving effect. It can save a lot of power plant investment and reduce the consumption of power generation fuel, thereby reducing the impact on the atmospheric pollution environment.

Due to low loss, low heat generation, and low-temperature rise, the operating performance of amorphous alloy transformers is also very stable. CEEG's SCR(B)H15 series amorphous alloy products inherit the advantages of SG products such as good heat dissipation, no need for molds, and flexible design. At the same time, they draw on the SC product's barrel-type coils, which have good lightning impact resistance and longitudinal air channels in operation. It has self-cleaning characteristics and has been improved to launch an innovative generation of three-phase, three-column, and semi-encapsulated non-grade alloy dry-type transformers with energy-saving, safety, and environmental protection concepts.

CEEG's non-grade alloy dry-type transformers have a product capacity range of 30kVA~3150kVA and a voltage level of up to 35kV. It is currently a domestic manufacturer with relatively complete product capacity and voltage levels of non-grade alloy dry-type transformers.

Amorphous alloy strip

An amorphous alloy strip synthesizes iron, cobalt, carbon, silicon, boron, and other elements in a certain proportion. Under high-temperature melting conditions, it is cooled by a high-speed wheel at 10°C/S, so the metal has no obvious lattice interface.

CEEG Amorphous Alloy Dry-Type Power Distribution Transformer.jpg

SC(B)H15 Series Three-Phase Amorphous Alloy Dry-Type Distribution Transformers
Rated Capacity: 30-2500 kVA
Connection Group Designation: Dyn11 or Yyn0
High Voltage (kV): 35, 20, 11, 10.5, 10, 6.6, 6.3 ; Low Voltage (kV): 0.4
Insulation Level: LI75AC35/LI0AC3
Rated Capacity (kVA)	No-Load Loss (W)	Load Loss			No-Load Current (%)	UK (%)	LPA (AN）dB	LxA (AN）dB
Rated Capacity (kVA)	No-Load Loss (W)	100℃（B）	120℃（F）	145℃（H）	No-Load Current (%)	UK (%)	LPA (AN）dB	LxA (AN）dB
200	190	2370	2530	2710	0.4	4	52	64
250	219	2590	2760	2960	0.4	4	52	64
315	266	3270	3470	3730	0.3	4	54	66
400	295	3750	3990	4280	0.3	4	54	66
500	342	4590	4880	5230	0.3	4	55	67
630	390	5610	5960	6440	0.3	6	56	68
800	456	6550	6960	7460	0.3	6	57	69
1000	523	7650	8130	8760	0.2	6	57	69
1250	618	9100	9690	10300	0.2	6	59	71
1600	722	11000	11700	12500	0.2	6	60	72
2000	950	13600	14400	15500	0.2	6	62	74
2500	1140	16100	17100	18400	0.2	6	62	75

SCR(B)H Series 10kV NX1 Three-Phase Amorphous Alloy Dry-Type Distribution Transformers
Rated Capacity: 30-2500 kVA
Connection Group Designation: Dyn11 or Yyn0
High Voltage (kV): 10 ; Low Voltage (kV): 0.4
Insulation Level: LI75AC35/LI0AC3
Rated Capacity (kVA)	No-Load Loss (W)	Load Loss			No-Load Current (%)	UK (%)	LPA (AN）dB
Rated Capacity (kVA)	No-Load Loss (W)	100℃（B）	120℃（F）	145℃（H）	No-Load Current (%)	UK (%)	LPA (AN）dB
200	140	2135	2275	2440	0.4	4	50
250	160	2330	2485	2665	0.4	4	50
315	195	2945	3125	3355	0.3	4	52
400	215	3375	3590	3850	0.3	4	52
500	250	4130	4390	4705	0.3	4	53
630	290	5050	5365	5760	0.3	6	54
800	335	5895	6265	6715	0.3	6	55
1000	385	6885	7315	7885	0.2	6	55
1250	455	8190	8720	9335	0.2	6	57
1600	530	9945	10555	11320	0.2	6	58
2000	700	12240	13005	14005	0.2	6	60
2500	840	14535	15445	16605	0.2	6	60

SCR(B)H15 Series Three-Phase Amorphous Alloy Dry-Type Distribution Transformers
Rated Capacity: 30kVA - 2500 kVA
Connection Group Designation: Dyn11 or Yyn0
High Voltage (kV): 35, 20, 11, 10.5, 10, 6.6, 6.3 ; Low Voltage (kV): 0.4
Insulation Level: LI75AC35/LI0AC3
Rated Capacity (kVA)	No-Load Loss (W)	Load Loss			No-Load Current (%)	UK (%)	LPA (AN）dB	LxA (AN）dB
Rated Capacity (kVA)	No-Load Loss (W)	100℃（B）	120℃（F）	145℃（H）	No-Load Current (%)	UK (%)	LPA (AN）dB	LxA (AN）dB
200	190	2370	2530	2710	0.4	4	52	64
250	219	2590	2760	2960	0.4	4	52	64
315	266	3270	3470	3730	0.3	4	54	66
400	295	3750	3990	4280	0.3	4	54	66
500	342	4590	4880	5230	0.3	4	55	67
630	390	5610	5960	6400	0.3	6	56	68
800	456	6550	6960	7460	0.3	6	57	69
1000	523	7650	8130	8760	0.2	6	57	69
1250	618	9100	9690	10300	0.2	6	59	71
1600	722	11000	11700	12500	0.2	6	60	72
2000	950	13600	14400	15500	0.2	6	62	74
2500	1140	16100	17100	18400	0.2	6	62	75

SCR(B)H Series 10kV NX1 Three-Phase Amorphous Alloy Dry-Type Distribution Transformers
Rated Capacity: 30kVA - 2500 kVA
Connection Group Designation: Dyn11 or Yyn0
High Voltage (kV): 10 ; Low Voltage (kV): 0.4
Insulation Level: LI75AC35/LI0AC3
Rated Capacity (kVA)	No-Load Loss (W)	Load Loss			No-Load Current (%)	UK (%)	LPA (AN）dB
Rated Capacity (kVA)	No-Load Loss (W)	100℃（B）	120℃（F）	145℃（H）	No-Load Current (%)	UK (%)	LPA (AN）dB
200	140	2135	2275	2440	0.4	4	50
250	160	2330	2485	2665	0.4	4	50
315	195	2945	3125	3355	0.3	4	52
400	215	3375	3590	3850	0.3	4	52
500	250	4130	4390	4705	0.3	4	53
630	290	5050	5365	5760	0.3	6	54
800	335	5895	6265	6715	0.3	6	55
1000	385	6885	7315	7885	0.2	6	55
1250	455	8190	8720	9335	0.2	6	57
1600	530	9945	10555	11320	0.2	6	58
2000	700	12240	13005	14005	0.2	6	60
2500	840	14535	15445	16605	0.2	6	60

SCR(B)H Series NX2 Three-Phase Amorphous Alloy Dry-Type Distribution Transformers
Rated Capacity: 30kVA - 2500 kVA
Connection Group Designation: Dyn11 or Yyn0
High Voltage (kV): 10 ; Low Voltage (kV): 0.4
Insulation Level: LI75AC35/LI0AC3
Rated Capacity (kVA)	No-Load Loss (W)	Load Loss			No-Load Current (%)	UK (%)	LPA (AN）dB
Rated Capacity (kVA)	No-Load Loss (W)	100℃（B）	120℃（F）	145℃（H）	No-Load Current (%)	UK (%)	LPA (AN）dB
200	170	2135	2275	2440	0.4	4	50
250	195	2330	2485	2665	0.4	4	50
315	235	2945	3125	3355	0.3	4	52
400	265	3375	3590	3850	0.3	4	52
500	305	4130	4390	4705	0.3	4	53
630	350	5050	5365	5760	0.3	6	54
800	410	5895	6265	6715	0.3	6	55
1000	470	6885	7315	7885	0.2	6	55
1250	550	8190	8720	9335	0.2	6	57
1600	645	9945	10555	11320	0.2	6	58
2000	850	12240	13005	14005	0.2	6	60
2500	1020	14535	15445	16605	0.2	6	60

Design

Advanced electromagnetic design optimization software improves the accuracy and speed of amorphous alloy dry-type transformer design and realizes design automation.

Powerful simulation analysis capabilities, for each series of products, through simulation analysis of flow field, temperature field, leakage field, short-circuit force, etc., to ensure product safety and reliability.

Iron Core

It is made of high-quality amorphous strips in a three-phase three-column type. It is annealed under the intensity of a DC electric field to obtain low iron loss and low excitation current. The core surface is coated with a special resin to prevent corrosion. The iron core has a simple structure, high mechanical strength, and resistance to high-order harmonics. Iron loss is 70%~80% lower than conventional products.

Low Voltage Foil Wound Coil

Imported high-quality copper foil and H-class insulation material are used to wind on the formed insulating cylinder. The layer insulation is made of NOMEX paper. VPI vacuum pressure impregnates it into a solid whole. The upper and lower ends are sealed with resin. The lead copper bars and copper foil are welded using argon arc welding technology. The coil has high mechanical strength, strong short-circuit resistance, and strong dust-proof, moisture-proof, and salt-spray resistance.

High Voltage Winding Coil

It adopts a multi-layer segmented cylinder type and longitudinal multi-air channel structure. It has strong heat resistance, impact resistance, and surge resistance. NOMEX paper-wrapped flat copper wire is used as a conductor, NOMEX paper is used as layer insulation, and H-class material is used as end insulation. It is formed by VPI vacuum pressure dipping and high-temperature baking and solidification. The upper and lower ends are sealed with resin, which has good heat dissipation performance and is not easy to crack.

Assembly

The coil is the load-bearing main body, supported on a separate winding system, and pressed and fixed. The iron core has a suspended structure, which protects the iron core from pressure and reduces the radial shrinkage and impact on the iron core when the transformer is short-circuited. The overlapping part of the iron core adopts a special glue end-sealing to minimize core stress.

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