Taizhou tongda machinery co., LTD. Dragon GF series production of dry type transformer with cross flow cooling machine, mainly used for the dry type transformer cooling capacity and electronic equipment, power distribution cabinets, high and low voltage switchgear products such as cooling and function aspects, such as energy saving and efficiency increasing.Using the series cooling fan can improve the output power of dry type transformer is 40% ~ 50%, effectively improve the carrying capacity of the dry type transformer, prolong the service life of the dry type transformer, the current widely used at home and abroad to improve bearing capacity of the dry type transformer economic way.We are the national industry standard JB/T8971-2013 "dry type transformer with cross flow cooling fan" of one of the drafting unit, according to the national industry standard, by optimizing the combination design, make its cross flow cooling fan air volume larger, lower noise, to further improve the wind pressure, reduce the energy consumption of the air blower, GF series dry type transformer with cross flow cooling machine shell is made of high quality aluminum and stainless steel end plate, compact structure, beautiful appearance, easy installation, stable performance, long service life, thus for the GF series dry type transformer with cross flow cooling fan for a long time in the running smoothly under the condition of bad environment provide a reliable guarantee.
1.The product model:
1, Example: fan model GFD470-100 / A
GF series dry type transformer with cross flow cooling fan,
D said single-phase 220 v motor, the side type without letters,Fan 470 mm, the impeller diameter of 100 mm,A for motor installed in the outlet main direction of right side.
GFD470-100 / A
2, Example: fan model GFSD1120-110 / B
GF series dry type transformer with cross flow cooling fan,
Ld S 380 v three-phase motor, D type,Fan 1120 mm, the impeller diameter of 110 mm,B the motor installed on the outlet main depending on the direction of the left side.
GFSD1120-110 / B
2. The working principle:
GF series cooling fan is used for the dry type transformer, fan at lower part of the transformer coil sides, cold wind blowing directly into transformer coil high and low pressure cooling air duct, the cooling effect is obvious, can guarantee the normal operation of the transformer and extend its service life.(fan open, stop and overtemperature alarm and overtemperature of transformer tripping functions provided by the temperature control device).
Transverse-flow type ventilators fan for dry-type transformer
3. Selection principle and conditions of use:
1, The cooling system of dry type transformer has a natural air cooling (AN) and forced air cooling (AF), the natural air cooling (AN) and forced air-cooled transformer (AF), all needs to ensure the transformer installation environment with good ventilation.When the natural air cooling, transformer can run continuously for a long time under the rated capacity.Forced air cooling, transformer output capacity can be increased by 50%, suitable for intermittent load operation, accident or emergency overload operation;Due to the over load and load loss impedance voltage was bigger, when the economic operation, therefore, should not make it in a long time continuous overload operation.When change transformer must add the cooling ventilation, ventilation rate according to the loss of 1 kw (PO + PK) need 4 m3 / min air volume.
2, Under the supporting capacity of 2000 kva dry type transformer, the whole machine noise is not more than 58 db.
Supporting capacity of 2000 ~ 3150 kva dry type transformer, the low noise less than 60 db.
Supporting capacity above 3150 kva dry type transformer, the machine does not exceed 62 db noise.
3, Indoor environment temperature - 40 ℃ ~ 75 ℃, the altitude does not exceed 1000 m.
4, Through the cooling fan of the gas are not allowed to have a strong acid, strong alkali, etc all kinds of corrosive gas.
5, There is no dust and other debris falling into the fan, fan burned so as not to cause or blade fracture.
6, Ambient temperature and output power contrast;
The environment temperature
4.The technical parameters:
5.Basic type of cross flow fan shape size:
Basic type of cross flow fan shape dimension tables:
6.The profile size of the side-blown crossflow fan:
The profile size of the side-blowing fan:
7.Cross flow cooling fan installation and maintenance:
1,Before installation should should first check whether the packing and shipping damage, deformation, deformation or damage shall be installed after repair.
2,Room temperature;Detection of motor stator winding on the chassis and winding insulation resistance between each other not less than 2 MΩ, if because of be affected with damp be affected with damp and make the insulation resistance is low, should be dry processing.
3,Product use of three-phase ac power supply must meet the nameplate of rated voltage and frequency, power supply comply with standard GB755-2000, fan can run normally;
4,And then check if there's any loose for each part and screw;Whether a collision between blade and ram or shift, if encounter or shift should adjust the rear can be installed.Cooling fan should be carried out after installation commissioning, after waiting for fan running normally again for online use.
5, Fan installation must unify with the base surface natural surface, shall not be connected by bolt force, in order to prevent the deformation of fan.
6,Fan placed to use for a long time, in the face of the fan to inspect commissioning without anomalies, can online use.
7,Fan after the installation should be wiring and seal, in case of leakage caused by short circuit burned motor wiring.
8, Connected to the power supply, check the direction of rotation and operation situation, such as a violent vibration, abnormal sound, too much electricity, motor overheating, should stop check in time, after waiting for troubleshooting, operation is normal, before the formal use;
9,Fan after the formal operation, every year to cope with the fan on a loose bolts, blade wear, electrical, damaged skin, and so on and so forth of check, according to the specific situation for repair or replacement parts and components.
8.Storage conditions:
1, In the process of handling, pay attention to the light to take light put, moving and placed, according to requirements of the packing marks and do not inversion and vertical.
2, In the process of handling should avoid strong shocks and violent vibration, in case the packing Xiang and product damage.
3, The fan should be stored in drafty, dry no corrosive gas area, to avoid the rain and sun exposure.
4, If temporarily when not in use, should not be out immediately, if the packaging has been damaged, and properly handle the postal inspection.
9.Ordering information:
1,When placing order, please according to the requirement, and the capacity of transformer and structure form, with reference to data provided by the product model selection, detailed.Description specifications and blowing direction;Our company can also be customized according to your use of the specification.
2,Our company according to the contract or order confirmation fan specifications, have special requirements, please in order details.
10.Buy fan to note:
1, The number of fan facies is single phase or three phase, generally for the single phase.
2, And the total length of fan impeller diameter
3, The fan is usually used in pairs, divided into A right and B left, detailed specifications in the technical parameters in the table.