Three Phase Oil Immersed Distribution Transformer
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Description
KevyIndustrial’s liquid-filled transformers are manufactured in accordance with the most demanding industry and international standards. Compliance with important standards, from IEC to VDE, is a matter of course, just as much as the exclusive use of high-quality materials, qualified employees implement the demanding standards in daily practice.
Standard Features
1.Product Range:15kVA-10000kVA, up to 44kV
2.System voltage: max. 36 kVA 200 BIL
3.Coolers: corrugated wall or radiator
4.Oil preservation: hermetically sealed or conservator/free breathing
5.Tap changer: off-circuit or on-load
6.Cooling medium: mineral oil, Midel
7.Steel type core clamping system
8.High voltage (HV) multilayer winding
9.Low voltage (LV) foil winding or layer winding
10.Winding materials aluminium or copper
11.High temperature class transformers
12.Low noise solution
13.Efficient transformers with reduced losses
14.Liquid-filled
15.Used in special conditions
16.Sophisticated facilities
17.Usage of wooden case
18.3D package for drawings
19.Special test like Zero Sequence Impendence test
20.Cooling: ONAN, ONAN/ONAF, KFAF, KFW
Test
●Voltage ratio. Polarity and phase relationship test on each tapping
●Resistance of all windings
●No-load current and no-load losses measurement
●Load losses measurement at rated current and frequency
●Impedance voltage measurement
●Induced over-voltage and separate source voltage withstand tests
●Impulse voltage withstand test
●Noise level test
●Oil leakage test
●Overload test at 150% rated current for one hour after temperature rise test and hot resistance measurement of (HV – LV)
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