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Three-phase dry-type power transformer SBK-300VA1140V turn 220 or 380 three-phase isolation transformer

discount 70% in 2018-07-16 to 2018-07-18
price: USD$ 196.00
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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SGSBK, SG-F, JBK, BK, DBK, DK, JMB, JBKZ, BKC, DG series, three / phase dry transformer isolation is the factory in the light of the international similar products, combining with China's national conditions on the development of a new generation of energy-saving power transformer production, from 100VA to 1000KVA, in accordance with the national standard IEC439 and GB5226 international, with the entire column, winding bodiless winding method; transformer vacuum impregnation, the transformer insulation grade F or H grade, product performance to meet domestic and international advanced level. Transformer series single-phase, three-phase dry-type transformer isolation is widely used in AC 50Hz voltage to 60Hz. The circuit below 1000V, widely used for import equipment, precision machine tools, machinery and electronic equipment, medical equipment, rectifier equipment, lighting factory; industrial and mining enterprises, stations, docks, airports etc.. Products of various input and output voltage level, connected groups, adjusting the number and location of taps (typically + 5%), winding capacity allocation, single-phase secondary winding equipment, rectifier circuits used, whether with housing, can carry out meticulous design and manufacturing according to the requirements of users.

+Product features

The establishment of a new middle ground you can lift the common mode interference grid and other problems in the midline of the isolation transformer, transformer isolation three line delta connection into a four line Yo system, and further eliminates the shielding interference and noise by high frequency pulse transformer coupling, although the disturbance isolation transformer with shielding of N-G the (pulse and high frequency noise) can effectively prevent, but the transformer must be properly grounded properly, very strict, otherwise it will have no effect against common mode interference. The company can provide customers with high quality isolation transformer design and production.


ØHigh isolation

Ø N-GGood performance

ØHigh common mode interference suppression

ØThe conversion of Y or Y to Delta

ØThe voltage tap easy conversion

ØAccording to the special requirements of the user design performance

+Technical indicators

1Input voltage: three-phase 1140V.380V.690V.660V.380V.220V.200V.240V.440V.110.

2Output voltage: 690V.480V.415V.440V.480V.264V.220V.100V. (according to customer order electricity

You can add a casing pressure)

3Working frequency: 50Hz-60Hz

4Efficiency: 95%

5Temperature: <60

6Waveform distortion: <0.1%

7High voltage test: 2500V, 1 minutes without breakdown

8Insulation resistance: winding insulation resistance on more than 500M in Europe

Primary to secondary insulation resistance than 500M in Europe

+The conditions of use

1Suitable altitude: less than 5000m

2Ambient temperature: -15 to +45 DEG C

3Relative humidity: less than 90%

4The gas, the installation site should not seriously affect the transformer insulation strength of steam, chemical sediment, dirt, dust and other conductive material non flammable and corrosive.

5Who do not meet the above conditions, should be negotiated with us.

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

The company reserves the right of final interpretation!