33kv 30kv 22kv 15kv 11kv 10kv 6kv Oil Immersed power substation electrical distribution transformer for bid project
·Product introduction
S11 / 12kV fully sealed oil immersed power transformer shows the advantages of low loss, low noise and high efficiency, which achieves good energy saving effect and reduces pollution. Compared with the traditional oil immersed transformer, fully sealed transformer cancels the oil conservator. The change of oil volume is automatically adjusted and compensated by the elasticity of the corrugated sheet of the corrugated oil tank. The transformer is isolated from the air to prevent and slow down the deterioration of the oil and the aging of the insulation, thus enhance the operation reliability. Normal operation is maintenance free.
· Structural features:
Our transformer is equipped characters as low loss, low noise, strong protection for thunder and lighting, well anti-shortcut capacity and fine appearance etc. It combines advanced equipments and manufacturing process, and it has four remote functions: remote communication, remote test, remote adjustment and remote control. By remote control from a computer, the power station could be work without any works on watch on the night. All our transformer has passed the test by National Mechanical & Industrial Bureau and National Power Company. The transformer is mainly used in power network, and the projects of power distribution. 22kv distribution transformer
Core equipped with advanced three steps: vertical and horizontal and horizontal cut, lap and multi-stage. It disperses the air distribution, improve the magnetic path. Decrease the no load loss, no load current and noise. 22kv distribution transformer
Core adopts series measures dragged panel, pressed the coil, particular glue for silicon steel to increase the strength of mechanism. Power grid electric transformer
New structure of high and low voltage winding, reasonable arrangement for oil tube and connection which increasing the capacity of mechanical strength and anti-shortcut.
The tank is bell type or core suspension type, the wall of tank is as wave form.
·Service conditions
The altitude shall not exceed 1000m
Ambient temperature: - 10 ℃ ~ + 40 ℃
Ceiling Monthly Average temperature: + 30 ℃
Maximum annual average temperature: + 20 ℃
Daily temperature difference: 25 ℃
Seismic crack degree: 8 degrees
Relative humidity: 95% (+ 25 ℃)
Note: Due to continuous product improvement, the dimensions provided in this sample are for reference only. If necessary, our company can design and produce according to user requirements. Please contact the company in time.
| 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 |
·Order instructions:
1. The customer needs provide main parameters of the transformer (input and output voltage, capacity, loss, etc.)
2. Other customer requirements
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