K-factor is defined as a ratio between the additional losses due to Harmonics and the Eddy current losses at 50Hz. K-Factor is defined as a ratio between the additional losses due to harmonics and the Eddy current losses at 50Hz. It is used to evaluate transformers for nonlinear loads. Transformers with a rated K-factor of 13, 20 and 30 are available.
Typically a K Factor of 13 is sufficient for most applications. K factor must be determined to calculate the right size transformer that is needed.
FARMAX has consolidated its position in transformer industry as one of the highest quality K-rated Transformer manufacturers in Bangalore. Our wide range of K-rated transformers are manufactured to meet the highest specifications and adhere to all the international standards.
Coil design is optimized for low Eddy current loss and high harmonic current carrying capacity.
Cores designed for reduced flux densities to compensate for harmonic voltage distortion.
Lower Output impedance.
Excellent transverse mode Noise Attenuation.
Double size Neutral terminal.
Core of high quality electrical steel.
|Rating||10KVA to 500KVA|
|Type of Transformer||Floor mounted, Natural air-cooled /Forced air cooled|
|Configuration||Delta / star 1:1 OR 2:1 (or as per user requirement specification)|
|Default Vector Group||Dyn11|
|Type of lamination||CRNO|
|Primary Voltage||415 V|
|Neutral conductor rating||200%|
|Winding||Copper Wire / Strip or Aluminium wire / strip|
|Load Regulation||Better than 3%|
|Class of insulation /level||Class H /180 deg C|
|Ambient temperature||0-to 45 deg c|
|Efficiency||3 - 20 kVA (>95%), >20kVA (>97%)|
|Insulation Strength||Withstands 2.5 kV for 1 minute (in between windings & in between windings and body)|
|DC galvanic isolation||> 1000 Mega Ohms|
|Common Mode noise rejection||Up to 10kHz > 100 dB|
|Indications||LED Lamps for Output Presence Digital Voltmeter (DVM) - optional|
|Enclosure||M.S. Enclosure provided with Input / Output terminations|
|Construction standards||UL-1561, IS 11171|