230kv Power Main Transformer

Classification: Power Transformer
Number of Views: 76次
Date of issue: 2026-01-28 15:21:47

Product overview:1. Standards: GB, IEC, GOST, EN, NF, ANSI/IEEE (customizable according to customer standards)
2. Certification: ISO、CE、IEC、SABS、COC、CSA、UL
3. Efficiency: The efficiency of a 230kV transformer can exceed 98%, meeting energy efficiency regulations in all countries worldwide.
4. Successful case verification: Accumulated a large amount of 230kV project experience in global power grid transformation, new energy access (such as photovoltaic booster stations) and other fields, verified the stability of products under complex working conditions, and designed a lifespan of over 30 years.
5. Environmental Protection and Sustainable Development: Adopting FR3 environmentally friendly insulation oil and recyclable materials to reduce carbon footprint, in line with the "dual carbon" policy orientation.
6. Delivery capability: Normal 90 days; The shortest delivery cycle is 50 days.

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Product advantages

Product parameters

Ordering instructions

Product advantages

Against the backdrop of global electricity demand growth,230kV three-phase oil immersed transformers are widely used in various fields such as State Grid, industrial and mining enterprises, regional substations, power plant boosting stations, and public facilities. They are mainly used for boosting or reducing voltage, achieving efficient transmission and distribution of electrical energy. The maximum capacity can reach 200mva. High reliability operational verification in over 50 countries and regions worldwide; It has been sold to countries and regions such as Tanzania, Zimbabwe, Ghana, South Africa, Kenya, Zambia, Sudan, Libya, Congo, United Arab Emirates, Saudi Arabia, Iraq, Syria, Bangladesh, etc.

Product parameters

230kV double winding non excitation voltage regulating power transformer
额定容量 Rated capacity (kva)	电压组合及分接范围 Voltage ratio and tap range (kv)		联结组 Connection symbol	空载损耗 No-load loss (kw)	负载损耗 Full-load loss (kw)	短路抗阻 Impedance(%)	空载电流 No-load current (%)
额定容量 Rated capacity (kva)	高压 HV	低压 LV	联结组 Connection symbol	空载损耗 No-load loss (kw)	负载损耗 Full-load loss (kw)	短路抗阻 Impedance(%)	空载电流 No-load current (%)
31500	220 242±2×2.5%	6.3 6.6 10.5 11	YNd11	35	135	12-14	0.70
40000				41	157		0.70
50000				49	189		0.65
63000				58	220		0.65
75000		10.5 11 13.8		67	250		0.60
90000				77	288		0.55
120000				94	345		0.55
150000		11;13.8; 15.75;20		112	405		0.50
180000				128	459		0.46
240000				160	567		0.42
300000		15.75; 18;20		189	675		0.38
360000		15.75; 18;20		217	774		0.38

Low voltage 66kV level 230kV double winding non excitation voltage regulating power transformer
额定容量 Rated capacity (kva)	电压组合及分接范围 Voltage ratio and tap range (kv)		联结组 Connection symbol	空载损耗 No-load loss (kw)	负载损耗 Full-load loss (kw)	短路抗阻 Impedance(%)	空载电流 No-load current (%)
额定容量 Rated capacity (kva)	高压 HV	低压 LV	联结组 Connection symbol	空载损耗 No-load loss (kw)	负载损耗 Full-load loss (kw)	短路抗阻 Impedance(%)	空载电流 No-load current (%)
31500	220 242±2×2.5%	63 66 69	YNd11	38	151	12-14	0.89
40000				45	176		0.89
50000				53	211		0.82
63000				63	247		0.82
90000				83	323		0.75
120000				102	387		0.75
150000				122	453		0.68
180000				138	513		0.68
240000				171	635		0.61

230kV dual winding on load voltage regulating power transformer
额定容量 Rated capacity (kva)	电压组合及分接范围 Voltage ratio and tap range (kv)		联结组 Connection symbol	空载损耗 No-load loss (kw)	负载损耗 Full-load loss (kw)	短路抗阻 Impedance(%)	空载电流 No-load current (%)
额定容量 Rated capacity (kva)	高压 HV	低压 LV	联结组 Connection symbol	空载损耗 No-load loss (kw)	负载损耗 Full-load loss (kw)	短路抗阻 Impedance(%)	空载电流 No-load current (%)
31500	220 242±2×2.5%	66.3;6.6 10.5;11 35;37;38.5	YNd11	38	135	12-14	0.70
40000				45	157		0.63
50000				54	189		0.56
63000				63	220		0.56
90000		10.5;11 35;37;38.5		80	288		0.49
120000				99	346		0.49
150000				116	405		0.42
180000				135	468		0.42
120000		66 69		102	355		0.49
150000				120	415		0.42
180000				140	475		0.42

230kV Three winding Unexcited Voltage Regulating Power Transformer
额定容量 Rated capacity (kva)	电压组合及分接范围 Voltage ratio and tap range(kv)			联结组 Connection symbol	空载损耗 No-load loss (kw)	负载损耗 Full-load loss (kw)	短路抗阻 Impedance(%)		空载电流 No-load current (%)
额定容量 Rated capacity (kva)	高压 HV	中压 MV	低压 LV	联结组 Connection symbol	空载损耗 No-load loss (kw)	负载损耗 Full-load loss (kw)	升压变 step-up	降压变 step-down	空载电流 No-load current (%)
31500	220 242±2×2.5%	69 115 121	6.3 6.6 10.5 11 35 37 38.5	YNyn0d11	40	162	高-中 H-M 22-24 高-低 H-L 12-14 中-低 M-L 7-9	高-中 H-M 22-24 高-低 H-L 12-14 中-低 M-L 7-9	0.70
40000					48	189			0.63
50000					56	225			0.56
63000					66	261			0.56
90000			10.5 11 13.8 35 37 38.5		86	351			0.49
120000			10.5 11 13.8 35 37 38.5		106	432			0.49
150000			11 13.8 15.75 35 37 38.5		125	513			0.42
180000					142	585			0.42
240000					176	720			0.35
300000					208	750			0.30

230kV three winding non excitation voltage regulating autotransformer
额定容量 Rated capacity (kva)	电压组合及分接范围 Voltage ratio and tap range(kv)			联结组 Connection symbol	空载损耗 No-load loss(kw)		负载损耗 Full-load loss(kw)		短路抗阻 Impedance(%)		空载电流 No-load current (%)
额定容量 Rated capacity (kva)	高压 HV	中压 MV	低压 LV	联结组 Connection symbol	升压 step-up	降压 step-down	升压 step-up	降压 step-down	升压变 step-up	降压变 step-down	空载电流 No-load current (%)
31500	220 242±2×2.5%	115 121	6.6 10.5 11 35 37 38.5	YNyn0d11	25	22	117	99	高-中 H-M 12-14 高-低 H-L 8-12 中-低 M-L 14-18	高-中 H-M 8-12 高-低 H-L 28-34 中-低 M-L 18-24	0.50
40000					29	26	144	121			0.50
50000					34	30	170	144			0.43
63000					40	36	201	171			0.43
90000					50	46	276	234			0.36
120000			10.5 11 13.8 15.75 18 35 37 38.5		62	56	340	288			0.36
150000					70	60	405	342			0.33
180000					80	72	464	387			0.33
240000					95	86	595	504			0.25

230kV three winding on load voltage regulating power transformer
额定容量 Rated capacity (kva)	电压组合及分接范围 Voltage ratio and tap range(kv)			联结组 Connection symbol	空载损耗 No-load loss (kw)	负载损耗 Full-load loss (kw)	短路抗阻 Impedance(%)	空载电流 No-load current (%)
额定容量 Rated capacity (kva)	高压 HV	中压 MV	低压 LV	联结组 Connection symbol	空载损耗 No-load loss (kw)	负载损耗 Full-load loss (kw)	短路抗阻 Impedance(%)	空载电流 No-load current (%)
31500	220 242±2×2.5%	69 115 121	6.3 6.6 10.5 11 35 37 38.5	YNyn0d11	44	162	高-中 H-M 22-24 高-低 H-L 12-14 中-低 M-L 7-9	0.77
40000					50	189		0.70
50000					60	225		0.63
63000					70	261		0.63
90000			10.5 11 35 37 38.5		92	351		0.56
120000					115	432		0.56
150000					135	513		0.49
180000					159	630		0.49
240000					193	780		0.45

Ordering instructions

- Main parameters of transformer (voltage, capacity, loss and other main parameters)
- Transformer operating environment (altitude, temperature, humidity, location, etc.)
- Other customization requirements (tap switch, color, oil pillow, etc.)
- The minimum order quantity is 1 sets
- Normal delivery period of 30 days, worldwide fast delivery