dry type transformer

1. DRY TYPE TRANSFORMERS
Single-phase, Three-phase/Single-phase,
Three-phase/Two-phase,Three-phase
1.1 kV to 7.2kV Class

2. 2
Dry Type Transformers
Transformers meant to be installed in a dry and air conditioned room or in a
PTI AUGIER type substation.
ELECTRICAL CHARACTERISTICS :
Power rating and type :
Single-phase : TMAI : 5 - 7.5 - 10 - 16 - 25 - 32 - 50 kVA
Three-single : TTMAI : 16 - 25 - 32 - 50 - 63 - 80 - 100 - 125 - 160 kVA
Three-two : TTBAI : 16 - 25 - 32 - 50 - 63 - 80 - 100 - 125 - 160 kVA
Three-phase : TTAI : 16 - 25 - 32 - 50 - 63 - 80 - 100 - 125 - 160 - 200
250 - 400 - 500 - 630 kVA
Insulation voltage : 1.1 kV - 3.6 kV - 7.2 kV
Primary voltage : Every voltage compatible with insulation voltages above.
Usually standard voltages are : 230 V - 400 V - 950 V - 3200 V - 5500 V and
6600 V.
Secondary load voltage : 230 V - 400 V - 950 V - 3200 V - 5500 V and 6600 V.
Couplings :
 Standard : Three-phase transformer : Step-down Dyn11 - Step-up YNd1– single-phase transformer :Ii0
 Specific : Three-single transformer, Leblanc three-two transformer, other couplings on request.
Manufacturing specifications on request :
 Inrush current transformer reduced or very reduced.
CONNEXION:
Primary and secondary connesion on copper slots, by the upper side of the transformer.
STANDARD ACCESSORIES :
 Empty setting plugs : Three outputs on slots.
 Two earthing switches.
 Lifting lugs.
 Four rollers for 10 kVA and higher power rating transformers.
NOTE :
Transformers mechanical and electrical characteristics are the same
for step-down or step-up transformers. The tranformers are not
reversible.
Step-up transfrormers are built so that inrush currents are
limited.
Single-phase transformer, TMAI type, with IP21 encolsure, fuse terminal 3200 V
and locking.

3. 3
CONSTRUCTION :
Magnetical circuits with crystal made sheet metal, oriented, with low losses.
Copper windings, vacuum impregnated of H class and applying of a fungicide varnish.
Metallic flanges.
Ironed chassis with rollers.
Wooden terminals plate bakelised.
Cooling : in natural air : NA.
Use : use in dry, air conditioned rooms, at a room temperature of -15 °C ; + 40°C.
Color : RAL 7035 gray.
STANDARDS AND TESTS : Conforms to NF C 17-200 - NF C 52-100 - IEC 60076 standards.
Other specifications on request. Routine tests U.T.E made on each transformer, specific tests on request..
Dry type transformer, naked presentation on frame
Connexion plates
Tap changer
MV side view
Dry type transformer
With IP21 enclosure
Lifting lugs
Connexion plates
LV side dismantle panel
Fixation by screw
rollers
Signaletic plate
Firm plate
LV side dismantling panel
Side panel dismantling
(cables passage)
Fixation by screw
Bakélite matter
To be screwed on request

4. 4
ELECTRICAL CHARACTERISTICS
Power rating (kVA) 25 50 100 160 200 250 400 63016 32 63 80 125 500
Copper losses
at 75°C (W)
470 800 1350 2000 2300 2800 4200 7300350 550 1000 1100 1400 5600
Iron losses (W) 180 250 450 500 550 650 900 1500100 200 250 380 450 1250
Voltage drop
(% )
at Cos  = 0.83
3 3.14 3.2 3.4 3.2 3.15 3.5 3.53.3 3.07 3.4 3 3 3.5
CC tension
(%) at 75°C
3.2 3.5 4 4 4 4 4 53.4 3.4 4 3.5 4 4.5
Empty current
(%)
0.7 0.9 0.9 0.7 0.5 0.5 0.8 0.71 0.8 0.7 0.8 0.6 0.6
Three-phase dry Type Transformers
TTAI
ELECTRICAL CHARACTERISTICS :
Power rating:
16 - 25 - 32 - 50 - 63 - 80 - 100 - 125 - 160 - 200 - 250 - 400 - 500 - 630 kVA
Insulation voltage : 1.1 kV - 3.6 kV - 7.2 kV
Primary voltage : Every voltage compatible with insulation voltages above.
Usually standard voltages are : 230 V - 400 V - 950 V - 3200 V - 5500 V and
6600 V.
Secondary load voltage : 400 V - 950 V - 3200 V - 5500 V and 6600 V.
Couplings :
 Step-down Dyn11 - Step-up YNd1, other couplings on request.
CONNEXION :
Primary and secondary connexions on copper plates, by the upper side of the transformer.
STANDARD ACCESSORIES :
 Voltage tapping adjustable out of voltage : +/- 2,5 % or +- 5% output on slots.
 Two earthing terminals.
 Lifting lugs.
 Four rollers for 10 kVA and higher power rating transformers.
 Naked presentation on frame : IP00.
OPTIONAL ACCESSORIES
 Painted sheet metal enclosure with natural airing upwards, IP21.
 Connexion on pluggable terminals 3200 V or 5500 V.
 HRC fuses protection integrated above the protection envelop.
 Thermal protection by thermal probe integrated to windings, one or two thresholds protection.
 Tap changers +/- 2,5 % +/- 5%.
 Keyhole locking of the protection envelop and or pluggable terminals.
NOTE :
Transformers mechanical and electrical characteristics are the same for step-down or step-up transformers. The
tranformers are not reversible.
Step-up transfrormers are built so that inrush currents are limited.

5. 5
TTAI Dry Transformers
SIZES-WEIGHT (mm) - PRESENTATION ON IP00 FRAME - STEP DOWN TRANSFORMER
Power rating
(kVA)
25 50 100 160 200 250 400 63016 32 63 80 125 500
A 750 825 930 980 1000 1096 1240 1600636 825 840 930 950 1400
B 480 500 530 530 570 660 660 900400 500 520 530 530 830
C 670 718 809 858 889 1086 1134 1650611 718 734 809 836 1300
D 510 510 580 610 650 690 770 900380 510 520 580 590 870
E 400 400 440 440 465 520 520 520295 400 400 440 440 520
Weight (kg) 270 345 465 600 700 940 1185 1800155 310 365 450 525 1450
SIZES-WEIGHT (mm) - PRESENTATION WITH IP21 ENCLOSURE - STEP DOWN TRANSFORMER
Power rating
(kVA)
25 50 100 160 200 250 400 63016 32 63 80 125 500
A 960 1040 1140 1190 1220 1310 1550 1810850 1040 1050 1140 1160 1610
B 630 650 660 680 720 810 810 1050550 650 660 660 660 980
C 970 1030 1100 1200 1200 1390 1500 1950900 1020 1040 1100 1140 1600
D 510 510 580 610 650 690 770 900380 510 520 580 590 870
E 400 400 440 440 465 520 520 520295 400 400 440 440 520
Weight (kg) 300 400 565 750 900 1150 1450 2050185 350 405 535 630 1700
Protection degree IP00
Protection degree IP21

6. 6
Single-phase Dry Type Transformers
TMAI
ELECTRICAL CHARACTERISTICS :
Power rating: 5 - 7,5 - 10 - 16 - 25 - 32 - 50 kVA
Insulation voltage : 1.1 kV - 3.6 kV - 7.2 kV
Primary voltage : Every voltage compatible with insulation voltages above.
Usually standard voltages are : 230 V - 400 V - 950 V - 3200 V.
Secondary load voltage : 230 V - 950 V - 3200 V.
Couplings :
 Standard : single-phase transformer : Ii0
CONNEXION :
Primary and secondary connexions on copper plates, by the upper side of the transformer.
STANDARD ACCESSORIES :
 Voltage tapping adjustable out of voltage : +/- 2,5 % ou +- 5% sorties sur plages.
 Two earthing terminals.
 Lifting lugs.
 Four rollers for 10 kVA and higher power rating transformers.
 Naked presentation on IP00 frame.
OPTIONAL ACCESSORIES
 Painted sheet metal enclosure with natural airing upwards, IP21.
 Connexion on pluggable terminals.
 HRC fuses protection integrated above the protection envelop.
 Thermal protection by thermal probe integrated to windings, one or two thresholds protection.
 Tap changers +/- 2,5 % +/- 5%.
 Keyhole locking of the protection envelop and or pluggable terminals.
NOTE :
Transformers mechanical and electrical characteristics are the same for step-down or step-up transformers. The
tranformers are not reversible.
Step-up transfrormers are built so that inrush currents are limited.
ELECTRICAL CHARACTERISTICS
Power rating (kVA) 5 7,5 10 16 25 32 50
Copper losses
at 75°C (W)
100 120 170 380 500 630 750
Iron losses
(W)
40 60 60 80 120 150 200
Voltage drop (% )
at Cos  = 0.83
2.92 2.47 3.35 3.7 3.53 3.55 3.7
Cc tension
(%) at 75°C
2.95 2.67 3.75 3.86 3.78 4 4
Empty current
(%)
3.11 2.53 2.58 2.67 2.52 2.54 2.51

7. 7
TMAI Dry Transformers
SIZES-WEIGHT (mm) - PRESENTATION ON IP00 FRAME
Power rating (kVA) 5 7,5 10 16 25 32 50
A 320 400 400 540 600 630 650
B 320 390 390 400 400 450 460
C 372 560 494 632 652 710 749
D - - 320 300 315 270 270
E - - 218 230 245 270 270
Weight (kg) 45 72 84 140 190 230 265
SIZES-WEIGHT (mm) - PRESENTATION WITH IP21 ENCLOSURE
Power rating(kVA) 5 7,5 10 16 25 32 50
A 380 424 424 570 630 670 700
B 344 414 414 450 460 550 570
C 532 570 600 830 850 960 1020
D - - 320 300 315 270 270
E - - 218 230 245 270 270
Weight (kg) 56 83 98 160 220 270 310
Protection degree IP00
Protection degree IP121

8. 8
AUGIER IS CERTIFIED ISO 9001 SINCE 1995
6040152Withconstantimprovements,themanufacturermayalterinformationwithoutpriorwarning