VOL-30T Vertical winder for power transformer low-voltage coil winding

Machine uses:

The transformer vertical winding machine is specifically designed for large power transformers,offering both pit-type and floor-type installation structures.utilizing a vertical winding method,the equipment is particularly suitable for precision manufacturing of larhe coils such as those for ultra-high voltage(UHV)transformer and reactors.

 

Machine composition:

Flower  plate  rotating  device,  pay-off  lifting  device,  pay-off  clamping device, winding device, operating platform. Control cabinet, control boom box.

 

 Technical parameters :

Model No.	VOL-20T	VOL -25T	VOL-30T
Main motor	18.5KW	22KW	30KW
Maximum load capacity of the main unit panel	20T	25T	30T
Maximum diameter of the coil	Φ 600mm-Φ 2600mm	Φ 600mm-Φ 2800mm	Φ 900mm-Φ 3000mm
Rotating disc diameter	≦Ф1200mm	≦Ф1500mm	≦Ф1500mm
Maximum height of coil	2500mm	3000mm	3000mm
Turntable speed	0 ~ 10r/min	0 ~ 10r/min	0 ~ 10r/min
Expanding platform	Electrical control	Electrical control	Electrical control
Platform range	Φ1000～Φ2800mm	Φ1200～Φ3000mm	Φ1200～Φ3200mm
Effective lifting stroke	H3000mm                                Turntable lifting height	H3000mm                                Turntable lifting height	3200mm / working platform
Winding height	0-70mm/Touch   screen setting	0-70mm/Touch screen setting	0-70mm/Touch screen setting
Flower disc	8-T30 T Cao	8-T30 T Cao	8-T30 T Cao

Regarding the main transformer

In power plants and substations, the transformer used to transmit power to the power system or users is called the main transformer, or simply the main transformer.

Function: The main transformer plays a crucial role in converting the electrical energy generated by generator sets into a voltage level suitable for transmission, or converting the transmission voltage into a voltage level suitable for the distribution network. Furthermore, it limits fault current through its impedance characteristics, improves the safe operation of the power grid, and ensures stable voltage and frequency for end users.

Structure: The main transformer mainly consists of an iron core, windings, insulation system, oil tank, and cooling system. The iron core is made of stacked silicon steel sheets with high magnetic permeability and is the core component for electromagnetic energy conversion. The windings include high-voltage windings and low-voltage windings, made of copper or aluminum wire. The insulation system includes solid insulation and liquid insulation. The oil tank and cooling system include the oil tank, radiator, fan, oil pump, etc., employing oil-immersed natural cooling or oil-immersed air cooling methods.

Working Principle: The main transformer operates based on electromagnetic induction and voltage transformation. When the high-voltage coil is powered by an AC power source, it generates an alternating current, which in turn generates an alternating magnetic field. This magnetic field is conducted to the low-voltage coil through the iron core. According to Faraday’s law of electromagnetic induction, the alternating magnetic field in the low-voltage coil will induce an electromotive force, thereby realizing the conversion of electrical energy from high voltage to low voltage.

Machine features:

Large power transformer coil vertical winding machine (10-40T load) is installed directly on the ground without the need to set the pit. (The winding disk can be rotated to adjust speed without pole. The winding lifting can be set automatically according to the winding touch screen.
Winding clamping device: through the pneumatic compression device to control the winding coil tensioning force, the force through the pressure valve to control the pneumatic pressure.
Pay-off rack device:
vertical structure of pay-off structure, using pneumatic brake control pay-off tension of the whole platform automatic lifting control.
Pressing device:
It should have a flat wire vertical winding anti-torsion device, the flower plate rotates, and can be operated separately or automatically (linkage) according to the winding situation. Winding pitch and disk rotation using intelligent control, can be preset winding pitch and number of turns, counter with power off memory function (maximum 99999.9 turns). Up/down operation has manual, linkage (automatic tracking) function; The control is required to be accurate, reliable, error-free and has the function of error accumulation and elimination. Automatic stop function can be set according to coil turns or height. Automatic reversing can be performed according to the set pitch parameters. Electronic, mechanical (host) counting function; The winding count shows the number of winding turns, less than 0.1 turns / 10,000 turns, and the lifting speed can be displayed in the display.
4-axis pay-off stand: with pneumatic brake, each tray can be used separately, or multiple trays can be selected.

Advantages:

Floor type UHV transformer coil vertical winder is installed directly on the ground without the need to set the pit. (The winding disk can be rotated to adjust  speed  without  pole.  The  winding  lifting  can  be  set  automatically according to the winding touch screen.

Tension-controlled vertical winding equipment for HV transformer coil is equipped with an adavanced tension system,capable of applying constant and precisely settable tension to the conductou throughout the entire winding process.

HV transformer continuous disc coil vertical winding system is featured a precision ifting mechanism(such as lifting drive mechanism)that accurately controls the gap betwenn each turn of the conductor and the transition between layers.

The main winding head achieves fully synchronized control with de-reelers,tension control systems,winding mechanisms,and other components,ensuring smooth and stable operation throughout the production process.

Vertical winder for power transformer low-voltage coil winding has multiple safey debices including emergency stop buttons,safety light curtains,protective cover interlocks,overload protection,and tension abnormality alarms,providing comprehensive protection for both operators and the equipment itself.

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