TT SERIES

POLYLUX’S TT SERIES

Three phase isolating transformers

The TT series is made up of three-phase isolation transformers with different voltages, ratings and protection degrees designed to work continuously and at maximum performance 365 days a year. Ensuring in this way, the supply to the facilities or equipment that they feed.

These series are subdivided as follows:

  • TTX/TTW/TTZ: 400V input and 400V+N output and ratings as from 0.63kVA up to 1000kVA
  • TTE: 400V input and 400V+N output and ratings as from 0.4kVA up to 400kVA

Some of its utilities:

  • Galvanic isolation of three-phase installations for safety reasons.
  • Generation of ground referenced neutrals in high power single-phase installations.
  • They help to improve the quality of the signal that feeds the loads in installations where there may be small voltage peaks or electrical noise.
  • The cast resin encapsulation of TTE transformers makes them an optimum solution wherever high resistance to vibration, humidity or corrosion of the windings is required.
  • They ensure the supply avoiding the tripping of the general differential switch in installations where there may be several earth leakages.

TTX
Three-phase dry type isolation transformers finished in anti-flash varnished for maximum protection, insulation, noise and vibration reduction.
Rating
From 0,63 kVA to 1000 kVA
Input voltage
400 V
Output voltage
400 V
Protection degree
IP-00

Frequency
50/60 Hz
Connection group
Yyn0
Cooling
AN
Ambient temperature
45 ºC
Temperature rise
From Class F – 155ºC to Class H – 180ºC
Insulation
Class H – 180ºC
Windings
Class HC – 200 ºC
Efficiency (%)
From 88,7 to 99
Noise level (dB)
From < 45 to < 65
Test voltage
3 kV (1 min, 50 Hz)
Standards
From IEC/EN/UNE-EN 61558, CE to IEC/EN/UNE-EN 60076, CE
TTW
Three-phase dry type isolation transformers finished in anti-flash varnished in IP23 metal enclosure with protection to prevent direct contact with electrical parts.
Rating
From 0,63 kVA to 1000 kVA
Input voltage
400 V
Output voltage
400 V
Protection degree
IP-23 / IK-08

Frequency
50/60 Hz
Connection group
Yyn0
Cover
Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)
Cooling
From ANAN to ANAF
Ambient temperature
45 ºC
Temperature rise
From Class F – 155ºC to Class H – 180ºC
Insulation
Class H – 180ºC
Windings
Class HC – 200 ºC
Efficiency (%)
From 88,7 to 99
Noise level (dB)
From < 45 to < 65
Test voltage
3 kV (1 min, 50 Hz)
Standards
From IEC/EN/UNE-EN 61558, CE to IEC/EN/UNE-EN 60076, CE
TTZ
Three-phase dry type isolation transformers finished in anti-flash varnished in IP54/65 metal enclosure with protection for outdoor installation.
Rating
From 0,63 kVA to 1000 kVA
Input voltage
400 V
Output voltage
400 V
Protection degree
From IP-65 / IK-10 to IP-54 / IK-10

Frequency
50/60 Hz
Connection group
Yyn0
Cover
Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)
Cooling
From ANAN to ANAF
Ambient temperature
45 ºC
Temperature rise
From Class F – 155ºC to Class H – 180ºC
Insulation
Class H – 180ºC
Windings
Class HC – 200 ºC
Efficiency (%)
From 91,3 to 99
Noise level (dB)
From < 45 to < 65
Test voltage
3 kV (1 min, 50 Hz)
Standards
From IEC/EN/UNE-EN 61558, CE to IEC/EN/UNE-EN 60076, CE
Includes
Silent blocks
TTE
Three-phase dry type cast resin isolation transformers for high corrosion and vibration environments.
Rating
From 0,63 kVA to 400 kVA
Input voltage
400 V
Output voltage
400 V
Protection degree
From IP-20 to IP-00

Frequency
50/60 Hz
Connection group
Yyn0
Cooling
AN
Ambient temperature
45 ºC
Temperature rise
From Class F – 155ºC to Class H – 180ºC
Insulation
Class H – 180ºC
Windings
Class HC – 200 ºC
Test voltage
3 kV (1 min, 50 Hz)
Standards
From IEC/EN/UNE-EN 61558, CE to IEC/EN/UNE-EN 60076, CE
Includes
From Bimetal thermal protection to

Special Manufacturing

We build transformers and inductive elements tailored to your needs.

Tell us about your needs and our engineers will create a solution adapted to your company.