Transformers for applications in which there is very high single-phase consumption
in an installation and the load is to be shared in a three-phase system to prevent
important imbalances. It should be mentioned that due to the way in which they
operate, this type of transformer does not achieve a totally balanced load in primary.
The current in the central primary phase may be double the nominal current. It is
advisable to use these transformers for powers higher than 5kVA as it is understood
that in most industrial installations, for consumptions equal to or less than this power,
it will not entail a considerable consumption load. For powers equal to or less than
5kVA, use the conventional single-phase “PD”, “QD”, “ND” or “TK” series transformers.
Daugiau informacijos:
Technical features – standard model
Power 1 kVA to 100 kVA
Standard voltage Three-phase 400 V input// Single-phase 230 V output
Standard frequency 50-60 Hz
Windings Class HC-200 ºC
Insulators
Class F – 155 ºC ≤ 40 kVA (25 kVA TTKZ)
Class H – 180 ºC ≥ 50 kVA (31.5 kVA TTKZ)
*More information in Technical Appendix (T.A.1)
Class I
Altitude 1000 m
Enclosure colour RAL 7035
IP rating
IP00 (TTKX)
IP23 (TTKW)
IP54 / 65 (TTKZ)
IK rating IK08 (TTKW)
Paint class
(ISO 12944)
C3 (TTKW)
C4 (TTKZ)
Room temperature 45 ºC
Standards IEC/EN/UNE-EN 61558, CE
Test voltage 3 kV (1 min., 50 Hz)
Inrush < 12 In
Ucc ≤ 4 %
K factor 4
Operation Continuous
Cooling AN (TTKX) – ANAN (TTKW-TTKZ)
