Transformers,Distribution and Power Transformer,Varivolt
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Execution standard
GB 1094.1-2 power transformer general rules, power transformer temperature rise
GB 1094.3 power transformer insulation level and insulation test
GB 1094.5 "power transformer capacity to withstand short circuit"
GB/T 6451 technical parameters and requirements of three-phase oil-immersed power transformer
GB/T 15164 load guide for oil-immersed power transformer
IEC76 power transformer
GB 2536 "transformer oil"
800KVA~31500KVA three-phase double-winding non-excitation voltage regulating power transformer:
Dry type transformers shall be installed in accordance with the manufacturer's requirements, and shall be equipped with temperature measuring devices, generally 630kVA and above transformers.
A,1000kVA and above oil-immersed transformer shall be equipped with an outdoor signal thermometer and can take distant signals.
Product features:
A, tank using corrugated sheet, it has the respiratory function to compensate for temperature change caused by the oil volume change, so the product without oil storage tank, obviously reduce the height of the transformer.
B, because the corrugated film replaces the storage tank, the transformer oil is isolated from the outside, thus effectively preventing the entry of oxygen and water and the decrease of insulation performance.
C, according to the above five performance, to ensure the oil-immersed transformer within the normal operation of the don't need an oil change, greatly reduces the maintenance cost of transformer, and prolong the service life of the transformer.
D. In addition to the small capacity of copper wire, copper foil is usually used in the cylinder structure.
The high voltage winding adopts multi-layer cylindrical structure to balance the ampere-turns distribution of the winding, the leakage is small, the mechanical strength is high, and the anti-short circuit capability is strong.
E, iron core and winding each adopt the fastening measure, the height of the device, the low voltage lead wire and other fastening parts are equipped with self-locking anti-loose nuts, adopt the non-lifting structure, can withstand the shock of transportation.
F, coil and iron core adopt vacuum drying, the transformer oil adopts vacuum filter oil and oil filling process, which minimizes the moisture in the transformer.
Product features
1. The transformer core is made of imported high quality cold rolled silicon steel, which greatly reduces the no-load loss and no-load current, and the core is bound to ensure the tightness of the core and reduce the noise.
2. The high and low voltage winding is made of anaerobic copper, and the low-voltage winding 500kVA and the following are double-layered cylindrical structures.
A double helix or four-helix structure is used in 630kVA and above. Multi-layer cylindrical structures are used for high voltage windings.
3. The transformer connection group adopts Dyn11 to reduce the influence of harmonics on the power grid and improve the quality of power supply.
4. The transformer is full seal structure, extending service life, free of hanging core and maintenance.
5. The measured noise is below the standard.
After normal transportation, the series of transformers can be installed with relevant parts, and the test of acceptance test can be put into operation.
Dry type transformers shall be installed in accordance with the manufacturer's requirements, and shall be equipped with temperature measuring devices, generally 630kVA and above transformers.
A,1000kVA and above oil-immersed transformer shall be equipped with an outdoor signal thermometer and can take distant signals.
Product features:
A, tank using corrugated sheet, it has the respiratory function to compensate for temperature change caused by the oil volume change, so the product without oil storage tank, obviously reduce the height of the transformer.
B, because the corrugated film replaces the storage tank, the transformer oil is isolated from the outside, thus effectively preventing the entry of oxygen and water and the decrease of insulation performance.
C, according to the above five performance, to ensure the oil-immersed transformer within the normal operation of the don't need an oil change, greatly reduces the maintenance cost of transformer, and prolong the service life of the transformer.
D. In addition to the small capacity of copper wire, copper foil is usually used in the cylinder structure.
The high voltage winding adopts multi-layer cylindrical structure to balance the ampere-turns distribution of the winding, the leakage is small, the mechanical strength is high, and the anti-short circuit capability is strong.
E, iron core and winding each adopt the fastening measure, the height of the device, the low voltage lead wire and other fastening parts are equipped with self-locking anti-loose nuts, adopt the non-lifting structure, can withstand the shock of transportation.
F, coil and iron core adopt vacuum drying, the transformer oil adopts vacuum filter oil and oil filling process, which minimizes the moisture in the transformer.
Our oil-immersed power transformers have stable operation, high safety and efficiency, low price and wide application. Oil-immersed power transformers are integrated with production, sales and installation, with strong strength and good reputation.
Our oil-immersed power transformers have stable operation, high safety and efficiency, low price and wide application. Oil-immersed power transformers are integrated with production, sales and installation, with strong strength and good
