10KV oil immersed transformer
Product introduction
The product complies with the national standard GB1094-1996 and GB
/t6451-2008. This is the latest series product with low loss copper
winding. It is made of high-quality materials. New technology and
materials are used for coil body and insulation. This product shows
advantages of low loss, low noise and high efficiency, and can
achieve good energy-saving effect and reduce pollution.
·Service conditions
1. The maximum ambient air temperature shall not exceed 40 ℃, and
the minimum shall not below - 25 ℃;
2. The altitude shall not exceed 1000m. If special customized
transformers and low-voltage components are used, the altitude can
reach 4000m;
3. The vertical inclination is no more than 5 °, and no violent
vibration and impact;
4. The air humidity is not more than 90% (+ 25 ℃);
5. No gas and conductive dust that will seriously affect the
insulation of transformer, no explosion hazard and corrosion of
electrical components;
6. Outdoor wind speed shall not exceed 35m / s.
7. If service conditions beyond the above, specially customized
product is available.
·Structural features:
1. The low-voltage winding of an oil immersed transformer, except
for copper conductor used for small capacity transformer, generally
adopts copper foil winding and extraction hydro-cylinder structure;
and the high-voltage winding adopts multi-layer barrel structure.
These result in evenly distributed ampere-turns, small magnetic
flux leakage, high mechanical strength and strong short-circuit
resistance.
2. The iron core and winding are fastened separately. The machine
height, low-voltage lead and other fastening parts adopt
self-locking locknut and non-suspension structure, which can
withstand impact during transportation.
3. The coil and iron core are treated by vacuum-drying, and the
transformer oil is filtered and oiled in vacuum to reduce the water
content inside of the transformer.
4. The oil tank is made of corrugated plate, which could absorb oil
to compensate temperature fluctuation caused by oil volume change.
Therefore, this product has no external oil tank, which
significantly reduces height of the transformer.
5. As the corrugated plate replaces the oil storage tank, the
transformer oil is isolated from the outside world, effectively
preventing entry of oxygen and water and resulting in the decrease
of insulation performance.
6.The above five performances enables the oil immersed transformer
no need to change oil in normal operation, greatly reducing the
maintenance cost , and extending the service life of the
transformer.
| Main technical parameters |
| Main circuit rated voltage(V) | .......................... | Ac 400 (600) |
| Rated voltage of auxiliary circuit (V) | .......................... | Ac 220/380 (400) dc 110/220 |
| Rated frequency (Hz) | .......................... | 50(60) |
| Rated insulation voltage(V) | .......................... | 690(1000) |
| Rated current(A) | The level of bus | ≤6000 |
| Rated short-time bus withstand current (kA/1s) | .......................... | 50,80 |
| Rated peak withstand current of bus (kA/0.1s) | .......................... | 105,176 |
Power frequency test voltage (V/1min) | main circuit | 2500 |
| Auxiliary circuit | 1760 |
bus | Three-phase four-wire system | A,B,C,PEN |
| Three-phase five-wire system | A,B,C,PE,N |
| Protection grade | .......................... | IP30 |
Package Details:
