| Brand | Vziman |
| Model NO. | Custom HV Oil-Immersed Power Transformer Supplier 66kV-220kV |
| Rated voltage | 132kV |
| Rated frequency | 50/60Hz |
| Rated capacity | 10000kVA |
| Series | S |
Vziman HV oil-immersed power transformers, with capacity up to 270 MVA and insulation level up to 800 kV, cover voltage classes from 66kV to 220kV. Compliant with IEEE/ANSI, IEC and other international standards, they are suitable for global transmission and distribution networks.
Each transformer is custom-designed to project requirements, adapting to different voltage, capacity, climate, and network conditions. Widely used in renewable energy, urban substations, utilities, and industrial sectors, our transformers deliver core advantages including low loss, high short-circuit strength, strong overload capacity, reliable low-temperature startup, and low maintenance cost.
With full-process quality control and regular UL third-party audits, we provide on-site installation guidance, commissioning, training, and 24/7 remote technical support.
| 220kV Class Three phase Oil-immersed Power Transformer | ||||
|
Rated Power (kVA) |
High Voltage (kV) |
Low Voltage (kV) |
Loss (W) | |
| No-load Loss (W) | On-load Loss (W) | |||
|
31500 |
220/242 or others |
6.3/6.6 10.5/11 20/34.5 35/37 69 or others |
30000 |
128000 |
|
40000 |
36000 |
149000 |
||
|
50000 |
43000 |
180000 |
||
|
63000 |
50000 |
209000 |
||
|
90000 |
64000 |
274000 |
||
|
120000 |
79000 |
329000 |
||
|
150000 |
93000 |
385000 |
||
|
180000 |
108000 |
445000 |
||
| 115kV Class Three phase Oil-immersed Power Transformer | ||||
|
Rated Power (kVA) |
High Voltage (kV) |
Low Voltage (kV) |
Loss (W) |
|
|
No-load Loss (W) |
On-load Loss (W) |
|||
|
10000 |
115 138 161 |
6.3/6.6 10.5/11 or others |
11800 |
51200 |
|
12000 |
13700 |
59500 |
||
|
15000 |
16300 |
73100 |
||
|
20000 |
19500 |
88400 |
||
|
25000 |
22700 |
105000 |
||
|
30000 |
27400 |
126000 |
||
|
37500 |
32900 |
148000 |
||
|
50000 |
38900 |
184000 |
||
|
60000 |
46400 |
221000 |
||
| 110kV Class Three phase Oil-immersed Power Transformer | ||||
| Rated Power (kVA) | High Voltage (kV) | Low Voltage (kV) | Loss (W) | |
|---|---|---|---|---|
| No-load Loss (W) | On-load Loss (W) | |||
| 10000 | 110 121 |
6.3/6.6 10.5/11 or others |
10500 | 50200 |
| 12500 | 12400 | 59500 | ||
| 16000 | 15000 | 73100 | ||
| 20000 | 17800 | 88400 | ||
| 25000 | 21000 | 105000 | ||
| 31500 | 25000 | 126000 | ||
| 40000 | 29900 | 148000 | ||
| 50000 | 35300 | 178000 | ||
| 63000 | 41900 | 221000 | ||
| Parameter | Standard Value |
|---|---|
| Ambient Temperature | -25°C to +40°C (IEC 60076-1) |
| Altitude | ≤ 1000 m |
| Installation Site | Outdoor |
| Relative Humidity | ≤ 95% (at 25°C) |
| Pollution Level | Low pollution; no special insulation measures required |
| Seismic Resistance | Customizable (designed per project seismic intensity) |
| Wind Speed | ≤ 35 m/s |
| Site Requirements | Free from corrosive gases, flammable/explosive substances, well-ventilated |
Note: Customized designs are available for high altitude, extreme temperatures, seismic-active zones, or heavy pollution environments.
Please provide your project requirements: high voltage level , rated capacity (kVA/MVA), low voltage level, vector group, tap configuration, and site conditions (altitude, temperature, pollution level). Our engineering team will recommend the optimal design and provide a technical proposal.
Standard transformers follow common voltage, capacity, and loss configurations for general applications. Customized transformers are designed to meet specific project requirements, including non-standard voltage ratios, special vector groups, high altitude, extreme temperatures, low-loss requirements, or special impedance values. Customization ensures optimal performance and compliance with local grid codes.
Yes. We offer both DETC (off-circuit tap changer) and OLTC (on-load tap changer) options. OLTC is suitable for applications requiring voltage regulation under load, such as utility transmission networks and renewable energy integration. Please specify your tap range and regulation requirements.
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