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Industrial Microwave Power Supply Oil Immersed Transformer electrical distribution oil transformer suppliers in China
Product introduction
The combined transformer for Industrial microwave consists of 3 sets of copper winding transformers, 3 pcs famous brand high voltage capacitor, 3 pcs famous brand silicon stack, 1 pc of circulation pump, 1 heatsink, 1 pc of fan, and other components.
1. the capacitor, silicon stack and other components are fixed on power board, which save room, and make repair becomes more easy.
2. There is a oil filling hole, which is convenient to fill oil and check oil level.
3. Using oxygen free copper tube and non hydrophilic aluminium fin radiator to cool transformer oil.
4. The radiator and the circulation pump can take away the heat generated by the transformer. It can prevent circulationg water system from scale incrustation.
weight: 34 Kgs
Dimension: 510x260x310 mm
Recommend to use 24# or 40# oil.
The product complies with the national standard GB1094-1996
·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: