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110V127V three-phase 3000VAW power transformer 3KWKVA380V220V 660V 480V208V

discount 70% in 2018-07-22 to 2018-07-24
price: USD$ 916.30
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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Product overview

The transformer is based on electromagnetic induction, with the same frequency, winding between two or more transform voltage or current of a static electrical equipment.

SG, SBK type three-phase dry-type transformers, transformer core and winding of a transformer body, are not immersed in the insulating liquid medium (transformer oil) but direct contact with air, cooling by air convection.

The brief introduction of structure

1, the three column iron core, core materials for cold-rolled silicon steel sheet, magnetic flux density is more than 12000 Gauss

2, according to the capacity of winding respectively using SBECR double glass fiber enameled copper wire; QZ high strength enameled wire,

Or copper bar.

3, insulation grade: B

The normal conditions of use

The transformer can work reliably under the following conditions;

1, the altitude does not exceed 2500m

2, ambient temperature:

When the minimum temperature is not lower than - 25 DEG c,

When the highest air temperature is not higher than +40 DEG C

When the relative humidity of the air; the wet month average maximum temperature of not more than 95%; at the same time this month the monthly average minimum temperature is +25 DEG C

This current voltage waveform similar to sine wave

Does not affected by the rain and snow erosion places

I have no significant shock and vibration place

There is no explosion danger in the medium, and medium gas without sufficient corrosion and damage to the insulation and conductive dust

◆ Matters needing attention

 1, to determine the reasonable capacity of the transformer

We must first investigate with local supply voltage, the user's actual load and the local conditions, technical data and reference to the transformer nameplate one by one. General should be considering the transformer capacity, voltage, current and environmental conditions, the choice of capacity should be determined according to the load required for electric equipment capacity, the nature and use of time, in order to select the transformer capacity.

During normal operation, the transformer should bear the electricity load of transformer rated capacity of 75 ~ 90%

2, not long-term overload operation

Overload operation refers to exceed the current nameplate specified value during the operation of the transformer, the transformer overload operation temperature, the insulation aging, reduce the service life, so do not allow the transformer overload operation; under special circumstances, the transformer short time overload operation, allowing the time table


3, no damp

All the electrical products after wet insulation decreased, the leakage current increases, even can not be used normally. SG, SBK, ZSG three-phase transformer transformer for indoor use, are placed in the outdoor.

Water stains, rain and snow erosion, damp to dry transformer

4, to ensure the normal operation of the transformer should have the following test

     (1) temperature test: the running state of the transformer is not normal, the temperature is very important

     (2) load test: in order to improve the utilization rate of transformer, reduce the loss of power, to prevent overload operation, in operation, we must determine the transformer real bearing capacity determination time was determined directly by the clamp meter. Should the transformer rated current 75 ~ 90% load exceeds the current value, stated, should be adjusted immediately

     (3): the determination of voltage transformer voltage variation shall be within the rated voltage of + 5%. If more than this range should be used to tap adjustment, the voltage reaches the specified range. General voltage meter test secondary voltage respectively.

     (4) insulation resistance measurement: in order to make the transformer is always in normal operation state, must carry out the measurement of insulation resistance, insulation and moisture to prevent accidents. Determination of transformer insulation should be carried out in case of power failure, using the megger insulation by the measured resistance value requirements, not less than previously measured value

The basic parameters

1, suitable for 50Hz to 1000V voltage following circuit

2 rated system: short-term work system and long-term work system

3, the main volume table

The combination of 4 and rated supply voltage and rated output voltage of the press table is selected

Answer questions

Q: do you have this in stock?

Answer: for personal needs parameters, the transformer will be no inventory.

Q: whether can be customized?

Answer: can. Customized limited capacity and voltage, the size and shape of not receiving the order.

Q: order cycle time?

Answer: the delivery time depends on the number and capacity of one or two units and the capacity is very small in size, the day before 3 days of delivery order time.

Q; customer service and return?

Answer: our products are one year warranty; for transformer is according to the requirement, so the quality of the product itself does not accept returns.

The voltage must be clear before the next single, with the full capacity.

Single-phase transformer capacity = /0.8 power equipment (e.g. 2000W equipment: 2000/0.8=2500 with 2500VA transformer)

Three-phase transformer capacity = *1.732 power equipment (e.g. 1000W equipment: 1000*1.732=1732 with 1800VA transformer)



1. due to the different requirements of each customer in different parameters of the transformer, the general is basically no inventory, orders, please contact customer service to confirm the delivery time.

2. the product is not suitable for heavy metal, express, so under normal circumstances the default logistics needs of customers from mentioning delivery station. For the express or delivery, please contact customer service.

More than 3. of the freight for reference only, the specific cost please contact customer service.

4. thank you for the customer, if the inadequacies please correct me, anything can negotiate, I wish you all Business Flourishes, win-win cooperation

Because of the continuous upgrading of products! The parameters of the transformer and the picture is for reference only, the company reserves the final solution

The right to release! Look forward to your call: 17002173778