TTF SERIES

POLYLUX’S TTF SERIES

Transformers for solar inverters

Our TTF series is made up of three-phase isolation transformers with an 800V input and a 400V output that have a rating range as from 0.63kVA up to 1000kVA.

TTF transformers are used for galvanic isolation of three-phase solar installations and in the generation of ground-referenced neutrals.

We can find different versions depending on their degree of protection:

  • TTFX: IP00
  • TTFW: IP23
  • TTFZ: IP54/65

Some of its utilities:

  • Reduce the output voltage of the inverters to a network voltage suitable for the customer.
  • Helps to improve the quality of the electrical network in its secondary.
  • Change the neutral regime of an installation.
  • In installations where energy saving is a critical point or where a lower connection point is needed, such as renewable energy generation plants or high energy efficiency installations.

Constructive features:

  • All transformers are submerged in anti-flash varnish and then they are compacted in an oven. This process increases the degree of insulation, reduces noise and provides water-repellent, anti-humidity protection.
  • All connection terminals are made of copper. For transformers with aluminum windings, the internal AL-CU bimetallic connections are made by welding with filler material and sealing to guarantee a safe and lasting connection.

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

Frequency
50/60 Hz
Connection group
YNyn0
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
TTFW
Three-phase isolation transformers for dry type solar inverters, 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
800 V
Output voltage
400 V
Protection degree
IP-23 / IK-08

Frequency
50/60 Hz
Connection group
YNyn0
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
TTFZ
Three-phase isolation transformers for dry type solar inverters, with anti-flash varnish finished in IP54/65 metal enclosure with protection for outdoor installation.
Rating
From 0,63 kVA to 1000 kVA
Input voltage
800 V
Output voltage
400 V
Protection degree
From IP-65 / IK-10 to IP-54 / IK-10

Frequency
50/60 Hz
Connection group
YNyn0
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

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.