220kv_power_transformer

Our company's 220kV oil-immersed energy-saving transformers feature low losses, low noise, low temperature rise, high reliability, zero leakage, and are maintenance-free. All technical specifications meet internationally advanced standards.

They are widely used in the power systems of power plants, substations, renewable energy wind farms and photovoltaic power plants, as well as large-scale industrial and mining enterprises such as the petrochemical industry. These 220kV oil-immersed energy-saving transformers include both on-load and off-excitation voltage regulation types, suitable for three-phase, 50Hz, power systems operating at voltages of 220kV and below.

Product Parameters

S18-220KV 31500KVA-240000KVA Power Transformer
Rated Capacity (KVA)	Voltage Combination and Tapping Range			Vector Group	No Load Loss (KW)	Load Loss (KW)	No Load Current (%)	Capacity Allocation (%)	Impedance (%)
Rated Capacity (KVA)	HV (KV)	MV (KV)	LV(KV)	Vector Group	No Load Loss (KW)	Load Loss (KW)	No Load Current (%)	Capacity Allocation (%)	Impedance (%)
31500	220±8x1.25% 230±8x1.25%	69 115 121	6.3 6.6 10.5 21 36 37 38.5	YNyn0d11	28	145	0.77	100/100/100 100/50/100 100/100/50	HV-MV 12-14 HV-LV 22-24 MV-LV 7-9
40000					33	174	0.73
50000					38	205	0.74
63000					45	244	0.69
90000			10.5 21 36 37 38.5		58	315	0.54
120000					74	390	0.54
150000					86	463	0.48
180000					99	568	0.48
240000					120	704	0.43

S22-220KV 31500KVA-240000KVA Power Transformer
Rated Capacity (KVA)	Voltage Combination and Tapping Range		Vector Group	No Load Loss (KW)	Load Loss (KW)	No Load Current (%)	Impedance (%)
Rated Capacity (KVA)	HV (KV)	LV (KV)	Vector Group	No Load Loss (KW)	Load Loss (KW)	No Load Current (%)	Impedance (%)
31500	220±8x1.25% 230±8x1.25%	6.3 6.6 10.5 21 36 37 38.5	YNd11	20	115	0.48	12-14
40000				23	134	0.5
50000				28	161	0.45
63000				33	188	0.45
90000				42	246	0.38
120000		10.5 21 36 37 38.5		51	304	0.38
150000				60	360	0.35
180000				70	413	0.32
120000		66 69		53	303	0.38
150000				62	355	0.37
180000				73	406	0.32
240000				91	504	0.25

Performance Advantages

1. Low Loss: Through specialized electromagnetic design and manufacturing processes, no-load losses are reduced by 20% and loaded losses by 5% compared to national standards, resulting in significant energy savings.

2. Low Noise: Exclusive noise reduction technology is applied in multiple locations to address electromagnetic and mechanical noise sources, reducing transformer noise by 3-5 dB(A) compared to national standards.

3. Strong Short-Circuit Resistance: The product has passed the sudden short-circuit test conducted by the National Transformer Quality Inspection and Testing Center, verifying its reliability in withstanding short-circuit shocks.

TSTY Electric Co., Ltd.

TSTY Transformer Design Advantages

High-Quality Raw Materials

1. Uses silicon steel raw materials from top-tier state-owned enterprises like Wuhan Iron and Steel and Baosteel.

2.Control material quality from the source, reducing defects.

Fully Automated and Unmanned Process

1.Intelligent cross-cutting and longitudinal shearing, RGV rails, AGV/unmanned forklifts, dual intelligent automated warehouses, automatic stacking machines, automatic inspection and conveying, etc.

2.educes human error, bumps, and material damage.

High Precision and Consistency

1. Smooth, burr-free cuts; perfectly fitted laminations.

2.Unified control of lamination position, pressure, and gap.

3.Constant tension winding; automatic computer counting eliminates human error.

Full Traceability

1. Each iron core has an independent traceability code.

2.Each SOP corresponds to a unique QR code.

3.Raw material batches, process records, and responsible persons are all traceable; problems can be located in seconds.

National-Level Testing and Export Certification

1. CNAS National-Level Testing Center; one of the ≤5 institutions nationwide with relevant transformer testing capabilities.

2.Never leaving the factory if substandard.

3.Compliant with IEC, GB/T, IEEE, and ANSI standards; meets UL, CE, GOST, and other market requirements.

Global Environmental Adaptability

1. Five-fold anti-corrosion upgrades: C5-grade electrostatic powder coating, 150μm thickness, salt spray resistance >1000h.

2.Suitable for harsh environments such as coastal areas, high-altitude regions, extreme cold, and high humidity.

3.Customization available, including FR3 vegetable oil and vacuum-sealed anti-corrosion packaging.

Project Case

TSTY transformer products have been widely used in the industrial field, rural electrification, power grid upgrade and transformation, new energy and other fields. And TSTY has established in-depth cooperation with more than 20 national power grids.

TSTY Electric Co., Ltd.