TTI-K – THREE PHASE K-FACTOR ISOLATION TRANSFOMERS FOR NON LINEAR LOADS from 10 to 500kVA with K4, K13, K20 factor

THREE PHASE K-FACTOR RATED ISOLATION TRANSFOMERS FOR NON LINEAR LOADS from 10 to 500kVA with K4, K13, K20 factor

Certified efficiency and losses – SUITABLE FOR NON-LINEAR LOADS AND HIGH HARMONICS

TTI-K transformers are designed to withstand the overheating effect of high harmonics and strong currents on neutral. The K-factor index shows the transformer’s ability to withstand harmonics by operating within its thermal limits, using conductors of appropriate size. The design of a K-factor transformer must consider the trend of saturation resulting from non-linear loads and continuous waveform components caused by the third harmonics. The additional currents circulating in these cases in triangle-related windings are taken into account to ensure an ideal life for the transformer. It would be a mistake to consider a de-rating factor and use common transformers: the special conditions to which these products are subjected involve a specific design.

• NATURAL air-like cooling TYPE AN, suitable for installation inside.
• Copper windings
• Low losses grain oriented magnetic core
• Electrical insulation screen between primary and secondary connected to earth

 ELECTRICAL SPECIFICATION

MECHANICAL CHARACTERISTIC

More accessories and fittings on request

* for installations at higher altitudes, an adequate power reduction (“derating”) must be considered

LOAD TYPE AND RELATIONSHIP WITH K-FACTOR

DESIGN STYLE AND FEATURES

Electrostatic shield between wraps

Completely isolates the distribution system from the dangers of harmonics and power disturbances

Fully closed UN ventilated IP23 design

Low temperature increase

Copper wraps

The magnetic and resistive properties of K-factor transformers are particularly improved as they are designed specifically for non-linear loads. Downgrading the rated power of a transformer does not guarantee that it will work properly if subjected to non-linear loads. Copper windings and a neutral conductor of double size, allow you to  properly handle the heat generated by the  harmonics.