CEEG SRN Series 35KV 110KV Oil-Immersed Power Transformers Supplier

SRN transformers (3).jpg Advantages of SRN Transformers

1. High Temperature Resistance:

High-temperature-resistant transformers can operate at 100% load continuously at an ambient temperature of 40°C. In contrast, traditional oil-immersed transformers can only operate at 81% load under the same conditions, posing a risk of high-temperature tripping. High temperature-resistant liquid transformers can operate at full load under high temperatures, ensuring safe and reliable power supply in industries requiring high-load operation during high summer temperatures.

2. Low Maintenance Costs:

Conventional oil transformers typically use ordinary mineral oil and require oil inspection and filtration every two to three years. High temperature-resistant liquid has superior oxidation resistance and a slower aging rate, requiring inspection only every ten years. The coils use unique NOMEX® insulation paper, providing stable mechanical and electrical properties at high temperatures. NOMEX® insulation material has a long lifespan at elevated temperatures.

3. Energy Efficient and Environmentally Friendly:

Materials used in high temperature-resistant transformers can be recycled and reused at the end of their service life, and their waste products can be biodegraded, meeting sustainable development and environmental protection requirements. NOMEX® insulation paper is biodegradable after its service life, and high temperature-resistant oil can be treated and recycled, with treated waste being decomposed by soil microorganisms without toxicity, thus avoiding long-term environmental accumulation and pollution.

4. Safe and Reliable:

For specific customers in industries such as cement, steel, coal, and paper, high temperature-resistant transformers are designed considering the load fluctuations and instability specific to these sectors. The insulation system of the product remains undamaged under these conditions, ensuring safe and reliable long-term operation.

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SRN-200~75000/35 Non Excitation Voltage Regulating Transformers
Rated Capacity(kVA)	Voltage Combination			Vector Group	No-Load Loss (kW)	Load Loss (kW) (75℃)	No-Load Current (%)	Impedance (%)
Rated Capacity(kVA)	High Voltage (kV)	Tapping Range	Low Voltage (kV)	Vector Group	No-Load Loss (kW)	Load Loss (kW) (75℃)	No-Load Current (%)	Impedance (%)
315	35 38	±5%	0.4	Yyno	0.49	4.76	1.40	6.50
400					0.58	5.75	1.30
500					0.69	6.92	1.20
630					0.83	7.87	1.10
800					0.98	9.41	1.00
1000					1.15	11.54	1.00
1250					1.41	13.94	0.90
1600					1.70	16.67	0.80
800			3.15 3.3 6.3 6.6 10.5 11	Yd11	0.98	9.41	1.00
1000					1.15	11.54	1.00
1250					1.41	13.94	0.90
1600					1.70	16.67	0.80
2000					2.18	18.38	0.70
2500					2.56	19.67	0.60
3150		±5% ±2x2.5%			3.04	23.09	0.56	7.00
4000					3.62	27.36	0.56
5000					4.32	31.38	0.48
6300					5.25	35.06	0.48	7.50
8000				YNd11	7.20	38.48	0.42
100000					8.70	45.32	0.42
12500					10.08	53.87	0.40	8.00
16000					12.16	65.84	0.40
20000					14.40	79.52	0.40
25000					17.02	94.05	0.32
31500					20.22	112.86	0.32
40000					25.90	150.00	0.28
50000					29.40	210.00	0.28	8 10.5
63000					31.20	250.00	0.20
75000					33.40	300.00	0.20

SRN-200~75000/35 Non Excitation Voltage Regulating Transformers
Rated Capacity(kVA)	Voltage Combination			Vector Group	No-Load Loss (kW)	Load Loss (kW) (75℃)	No-Load Current (%)	Impedance (%)
Rated Capacity(kVA)	High Voltage (kV)	Tapping Range	Low Voltage (kV)	Vector Group	No-Load Loss (kW)	Load Loss (kW) (75℃)	No-Load Current (%)	Impedance (%)
315	35 38	±5%	0.4	Yyno	0.49	4.76	1.40	6.50
400					0.58	5.75	1.30
500					0.69	6.92	1.20
630					0.83	7.87	1.10
800					0.98	9.41	1.00
1000					1.15	11.54	1.00
1250					1.41	13.94	0.90
1600					1.70	16.67	0.80
800			3.15 3.3 6.3 6.6 10.5 11	Yd11	0.98	9.41	1.00
1000					1.15	11.54	1.00
1250					1.41	13.94	0.90
1600					1.70	16.67	0.80
2000					2.18	18.38	0.70
2500					2.56	19.67	0.60
3150		±5% ±2x2.5%			3.04	23.09	0.56	7.00
4000					3.62	27.36	0.56
5000					4.32	31.38	0.48
6300					5.25	35.06	0.48	7.50
8000				YNd11	7.20	38.48	0.42
100000					8.70	45.32	0.42
12500					10.08	53.87	0.40	8.00
16000					12.16	65.84	0.40
20000					14.40	79.52	0.40
25000					17.02	94.05	0.32
31500					20.22	112.86	0.32
40000					25.90	150.00	0.28
50000					29.40	210.00	0.28	8 10.5
63000					31.20	250.00	0.20
75000					33.40	300.00	0.20

SRN-2000~40000/35 OLTC Power Transformer
Rated Capacity(kVA)	Voltage Combination			Vector Group	No-Load Loss (kW)	Load Loss (kW) (75℃)	No-Load Current (%)	Impedance (%)
Rated Capacity(kVA)	High Voltage (kV)	Tapping Range	Low Voltage (kV)	Vector Group	No-Load Loss (kW)	Load Loss (kW) (75℃)	No-Load Current (%)	Impedance (%)
2000	35 38	±3x2.5%	3.15 3.3 6.3 6.6 10.5 11	Yd11	2.30	19.27	0.80	6.5
2500					2.72	20.64	0.80	6.5
3150					3.23	24.71	0.72	7
4000					3.87	29.16	0.72
5000					4.64	34.20	0.68
6300					5.63	36.77	0.68	7.5
8000				YNd11	7.87	40.61	0.60	7.5
10000					9.28	48.05	0.60	8
12500					10.94	56.86	0.56
16000					13.17	70.32	0.54
20000					15.57	82.78	0.54
25000					17.80	98.80	0.45
31500					21.30	121.90	0.40
40000					26.20	157.50	0.35

S(F)RN-6300~90000/110kV Double Winding Non Excitation Voltage Regulating Transformers
Rated Capacity(kVA)	Voltage Combination			Vector Group	No-Load Loss (kW)	Load Loss (kW) (75℃)	No-Load Current (%)	Impedance (%)
Rated Capacity(kVA)	High Voltage (kV)	Tapping Range	Low Voltage (kV)	Vector Group	No-Load Loss (kW)	Load Loss (kW) (75℃)	No-Load Current (%)	Impedance (%)
6300	110 121	±2x2.5%	6.3 6.6 10.5 11	YNd11	6.9	34.9	0.51	10.5
8000					8.4	42.5	0.47
10000					9.9	50.2	0.43
12500					11.7	59.5	0.38
16000					14.1	73.1	0.35
20000					16.5	88.4	0.32
25000					19.5	104.6	0.3
31500					23.1	125.8	0.28
40000					27.6	147.9	0.25
50000					33	183.6	0.22
63000					39	221	0.2
90000					51	289	0.2

S(F)RN-6300~63000/110kV Double Winding Non Excitation Voltage Regulating Transformers (Low Voltage 35kV)
Rated Capacity(kVA)	Voltage Combination			Vector Group	No-Load Loss (kW)	Load Loss (kW) (75℃)	No-Load Current (%)	Impedance (%)
Rated Capacity(kVA)	High Voltage (kV)	Tapping Range	Low Voltage (kV)	Vector Group	No-Load Loss (kW)	Load Loss (kW) (75℃)	No-Load Current (%)	Impedance (%)
6300	110 121	±2x2.5%	35 38.5	YNd11	7.5	37.4	0.53	10.5
8000					9	45.1	0.5
10000					10.5	52.7	0.48
12500					12.3	62.9	0.45
16000					14.7	77.4	0.41
20000					17.4	93.5	0.36
25000					20.5	109.7	0.33
31500					24.3	132.6	0.3
40000					29	155.6	0.25
50000					34.7	193	0.23
63000					41	232	0.21

S(F)RNZ-6300~63000/110kV Double Winding OLTC Power Transformer
Rated Capacity(kVA)	Voltage Combination			Vector Group	No-Load Loss (kW)	Load Loss (kW) (75℃)	No-Load Current (%)	Impedance (%)
Rated Capacity(kVA)	High Voltage (kV)	Tapping Range	Low Voltage (kV)	Vector Group	No-Load Loss (kW)	Load Loss (kW) (75℃)	No-Load Current (%)	Impedance (%)
6300	110 121	±8x1.25%	6.3 6.6 10.5 11	YNd11	7.5	34.9	0.58	10.5
8000					9	42.5	0.55
10000					10.7	50.2	0.51
12500					12.6	59.2	0.49
16000					15.2	73.1	0.46
20000					18	88.4	0.42
25000					21.3	104.6	0.4
31500					25.3	125.8	0.36
40000					30.3	147.9	0.32
50000					35.8	183.6	0.28
63000					42.6	221	0.22

CEEG production ability (2).jpg CEEG Transformer Production Base covers an area of over 600 acres (40 hectares), with a total construction area of 180,000 square meters and a workforce of more than 1,200 workers. Equipped with a complete set of world-class transformer production and testing equipment including cutting, vacuum casting, vacuum impregnation, and testing, it has an annual production capacity of 30 million kVA of power transformers.

The factory possesses a comprehensive set of cutting-edge equipment representing industry-leading standards, including shearing machines, fully automatic winding machines, robotically operated automatic stacking machines, Germany's Hedrich vacuum casting tanks, vacuum impregnation equipment, air cushion transport vehicles, fully enclosed production workshops with a cleanliness level of 100,000, 20-ton vertical winding machines, 10-ton horizontal winding machines, kerosene gas-phase drying equipment, and 200-ton cranes. Additionally, it has pioneered the application of transformer collaborative design platforms in the industry, effectively integrating product data, product development, and production processes.

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