A power transformer is a type of transformer that is used to transmit electrical energy between the distribution primary circuits and the generator. These transformers are used in distribution networks to connect step-down and step-up voltages.
A power transformer is a fixed device that converts power from one circuit to another without changing the frequency. A transformer is introduced as a static device because there are no moving or rotating components. Power transformers work with an alternating current supply. A transformer operates according to the laws of mutual induction.
H61 40kVA Oil-Immersed 20/0.4kV Power Transformer,this type of transformer is suitable for use in medium-sized power distribution systems, such as those found in commercial and industrial settings. It is oil-immersed, which provides good insulation and cooling properties, making it suitable for use in continuous duty cycles.
The H61 40kVA Oil-Immersed 20/0.4kV Power Transformer has a rated current of 25A at the secondary side and a rated power loss of 1.8kW. It also has a rated frequency of 50Hz and a rated voltage adjustment range of ±5%.
Operation of this transformer requires regular maintenance to ensure its safe and efficient operation. It should be installed in a well-ventilated area away from potential sources of ignition or explosion hazards.
High Power Transformers Specification
|
S11 Capacity |
Rated voltage&Off-load tapping | Vector GroupSymbol |
NO-load loss(W) |
Load loss(W) | NO-load current(%) | Short circuit impedance(%) |
||||
| H.V(kv) | High pressure Tap range(%) |
L.V(kv) | ||||||||
| 30 kva | 11 10.5 10 6.3 6 |
±5% ±2x2.5% |
0.4 0.415 0.420 0.430 0.440 |
Dyn11 Yyn0 |
100 | 630/600 | 1.5 | 4 | ||
| 50 kva | 130 | 910/870 | 1.3 | 4 | ||||||
| 60 kva | 150 | 1090/1040 | 1.2 | 4 | ||||||
| 75 kva | 180 | 1310/1250 | 1.2 | 4 | ||||||
| 100 kva | 200 | 1580/1500 | 1.1 | 4 | ||||||
| 125 kva | 240 | 1890/1800 | 1.1 | 4 | ||||||
| 150 kva | 280 | 2310/2200 | 1 | 4 | ||||||
| 200 kva | 340 | 2730/2600 | 1 | 4 | ||||||
| 250 kva | 400 | 3200/3050 | 0.9 | 4 | ||||||
| 300 kva | 480 | 3830/3650 | 0.9 | 4 | ||||||
| 400 kva | 570 | 4520/4300 | 0.8 | 4 | ||||||
| 500 kva | 680 | 5410/5150 | 0.8 | 4 | ||||||
| 600 kva | 810 | 6200 | 0.6 | 4.5 | ||||||
| 750 kva | 980 | 7500 | 0.6 | 4.5 | ||||||
| 1000 kva | 1150 | 10300 | 0.6 | 4.5 | ||||||
| 1250 kva | 1360 | 12000 | 0.5 | 4.5 | ||||||
| 1500 kva | 1640 | 14500 | 0.5 | 4.5 | ||||||
| 2000 kva | 1940 | 18300 | 0.4 | 5 | ||||||
| 2500 kva | 2290 | 21200 | 0.4 | 5 | ||||||
At the end of the 19th century, transformers began to use transformer oil as insulation and cooling medium, leading to the emergence of oil immersed transformers. In addition to abundant natural storage and low prices, transformer oil has been widely used due to its following characteristics.
1) When used in conjunction with fiber materials, the insulation performance is good, which can reduce insulation distance and reduce costs.
2) Transformer oil has low viscosity and good heat transfer performance.
3) It can effectively protect the iron core and winding from the influence of moisture in the air.
4) Protect insulation paper and cardboard from the action of oxygen, reduce the aging of insulation materials, and extend the service life of transformers.
Electrical transformer
our gNEE factory
Packaging&shipping
test creatificate
exhibition photos
customer visit case
gNEE Teams
GNEE's power transforemrs are accordling to ANSI/EEE,IEC,CSA,AS as well as NEMA standards, The power ratings are up to 270 MVA and for volumes up o the highest insulation classof 900 kV.
Hot Tags: h61 40kva oil immersed 20/0.4kv power transformer, China h61 40kva oil immersed 20/0.4kv power transformer manufacturers, suppliers, factory, H61 40kva Oil Immersed 20 0 4KV Power Transformer, Power Transformer, Steel Coils ZAM, 230 KV 220kv Power Transformer, 230 KV 220kv Power Transformer, Aluminium Galvanized Steel Coil
