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Tanaka Electric
Tanaka Electric
| Model NO. | S11 |
| Core | Core-type Transformer |
| Cooling Method | Oil-immersed Type Transformer |
| Winding Type | Two-winding Transformer |
| Certification | ISO9001-2000, ISO9001, CCC |
| Usage | Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer |
| Frequency Characteristics | Power Frequency |
| Shape of Core | Ring |
| Rated Capacity | 50~2500kVA |
| High Voltage | 6~35kv |
| Low Voltage | 0.4kv |
| Vector Group | Dyn11\Yyn0 |
| Tap Voltage | ±5%,±2*2.5% |
| No-Load Loss | 104W-3456W |
| Load Loss | 870W-28800W |
| Short Circuit Impedance | 4%-5% |
Three-phase Oil-immersed Power Transformer
Boost your outdoor power infrastructure with our high-performance Oil Immersed Transformers. As a trusted supplier, we offer 100kVA-2500kVA three-phase models that combine superior heat dissipation with rugged durability. Perfect for industrial and utility projects, these transformers are built to withstand extreme weather, reduce operational costs, and comply with global safety norms.
Product Overview
This type of transformer is equipped with OLTC for regulating the voltage in an accurate range. It can be designed from 800KVA to 31500KVA with a maximum voltage of 35KV and is mainly used for power transmission and distribution systems such as power substations.
On - Load Tap Changer (OLTC) is crucial in power transformers. It precisely controls tap positions to modulate the main circuit's voltage ratio, regulating output voltage. This boosts transformer efficiency and reliability.
🔹 Tank
The oil-filled tank, made of steel, houses the core and windings. Its advantages include withstanding operational pressure and temperature changes, as the oil within acts as both coolant and insulator. Accessories like radiators dissipate heat, and the oil conservator maintains oil level.
🔹 Oil Conservator
The oil conservator compensates for oil volume changes due to temperature, reduces oil-air contact to slow oxidation, and prevents moisture ingress, thus maintaining oil insulation and extending transformer lifespan.
🔹 Transformer Core
1. Structure: Core is made of high permeability grain oriented cold-rolled silicon steel. Legs of circular cross section multi-step, yoke and core of constant section.
2. Benefits: Design boosts energy efficiency and load-handling capacity. Tightly-stacked laminations form a continuous magnetic path.
(Values can be customized according to local demand!)
Through on-site surveys and professional interviews, we identify your specific application scenarios (power, railway, mining), key technical parameters, and environmental requirements to ensure a perfect fit.
| Rated Power (kVA) | High Voltage (kV) | H.V. Tap Range | Low Voltage (kV) | Connection Symbol | Short Circuit Impedance (%) | No-load Loss S11 (W) |
|---|---|---|---|---|---|---|
| 800 | 35 / 38.5 | ±3x2.5% | 6.3 / 10 / 11 | Yd11 / YNd11 | 6.5 | 1060 |
| 1000 | 6.5 | 1260 | ||||
| 1250 | 6.5 | 1490 | ||||
| 1600 | 6.5 | 1800 | ||||
| 2000 | 6.5 | 2300 | ||||
| 2500 | 6.5 | 2720 |
🔹 Payment: TT, 30% deposit and 70% balance against BL copy.
🔹 Delivery: Typically 15 - 20 days.
🔹 Package: Strong plywood cases for export protection.
Professional Technical Support: 7×24-hour technical consulting, with remote guidance for installation and maintenance.
Comprehensive Guarantee: Standardized warranty service with free repair or replacement for non-human damage.
Customized Training: Online special training courses helping master equipment operation skills.
Founded in 1988, boasting over 35 years of expertise in the power transmission and distribution equipment industry. Specialized in dry-type transformers, oil-immersed transformers, compact substations, and switchgears. Products are widely deployed across power grids, railways, mining, and residential sectors globally.
Our Advantages:
