GEa.26 e 23/07/98 8:30 Page 1
HV/LV distribution transformers
TRIHAL cast resin transformers
160 to 3150 kVA
insulation level 24 kV - low voltage 400 V
minimum clearances required HV and LV standard connection connections
TRIHAL transformers without
enclosure housing (IP00)
X cable support
The winding resin coating and the plug-in
LV n HV
X connectors don t ensure any protection against
X
touch when the transformer is energized.
X (1)
120
120
mini
mini
insulation dimensions X (mm)
(kV) full wall grid wall
7.2 90 300
12 120 300
17.5 - 24 220 300
The contrator must ensure that cables and busbars are adequately
supported to prevent mechanical stresses from being imposed on
the transformer terminals, busbars or bushings.
(1) Don t take into account the access to tapping on the HV side.
minimum clearances required HV and LV connection TRIHAL transformers with
IP31 metal enclosure
200 mm
LV n HV
LV
HV
500 mm (2)
(2) 500 mm. for an access to tapping on the HV side,
but 200 mm. minimum.
70 80
LV terminations
40
33 33
� 14
4 x � 14 4 x � 14
160 to 500 kVA* 630 to 800 kVA* 1000 to 1250 kVA*
thickness 5 thickness 6 thickness 10
160
100
80 40
50
4 x � 14
4 x � 16
1600 kVA* 2000 kVA*
thickness 12 thickness 10
*Valables pour 400 et 410 V en aluminium.
The contrator must ensure that cables and busbars are adequately supported to prevent mechanical stresses from being imposed on the transformer terminals, busbars or bushings.
200 mm
cable support
cable support
200 mm
33
15
33
23,5
33
23,5
50
25
50
35
GEa.26 e 23/07/98 8:30 Page 2
HV/LV distribution transformers
TRIHAL cast resin transformers
160 to 3150 kVA
insulation level 24 kV - low voltage 400V
lifting hole
LV connection
terminal
HV connection
terminal
magnetic core
LV winding
tappings
connection bar
HV winding
earthing terminal
Due to the evolution of standards and materials, the present
France Transfo
document will bind us only after confirmation from technical
B.P. 10140
department.
F 57281 MaiziŁres-lŁs-Metz cedex
tel. [phone]
telex 860 418 F
fax [phone]
Edition France Transfo
Conception: COREDIT
ref. GEa.26 e 04/97 - printed in France
GEa.26 e 23/07/98 8:31 Page 3
HV/LV distribution transformers
TRIHAL cast resin transformers
160 to 3150 kVA
I S O 9 0 0 1
insulation level 24 kV - low voltage 400 V
AF AQ N 1 9 9 0 / 1 1 3 b
description options
This range comprises transformers in accord- The following fittings can be provide:
ance with the following specifications : 1 thermal protection module comprising
50 Hz three-phase transformers for indoor 6 PTC thermostatic sensors (2 per phase)
installation (outdoor installation or other connected to a terminal board with a plug-in
frequency on request); connector and an electronic converter with 2
cast resin dry type; contacts (alarm 1 and alarm 2) supplied
thermal class F; separately;
ambient 40�C, altitude 1000m(1); 3 HV plug-in connectors (HN 52 S 61) may
natural air cooling type AN; be used as follows:
LV winding usually made of aluminium sheet fixed on a mounting plate from the upper
(insulated strip for low ratings). The core and LV core clamp (TRIHAL IP00);
windings assembly is given an additional fixed on top of the transformer enclosure on
protective coating of alkyd resin; the HV side (TRIHAL IP 31);
HV winding manufactured from insulated straight or elbow connectors can also be
round wire or rectangular strip; supplied. Please state cable characteristics;
HV winding is vacuum cast in epoxy additional LV terminal plates (tinned copper);
resin(2) efficiently fireproofed with trihydrat-
1 locking device to secure plug-in bushings
250 kVA (IP00) 20 kV/400 V +
ed alumina; (without lock and indiscriminitely suitable for a
400 kVA (IP31) 20 kV/400 V
TRIHAL transformers can be supplied: Ronis EPL11AP, ELP1, ELP2 or Profalux P1,
without enclosure (IP00). P2, V1, V21 lock mounting);
The installer must ensure that access to the live forced cooling by fans to give an AF rating
core and windings is prevented (3); of 140%.
with IP31 metal enclosure.
It prevents direct contact with live components.
standards
Nota: These options are those usually
These transformers are in accordance with
specified and many alternatives can be
standards:
provided on request.
IEC 76-1 ą 76-5;
IEC 726 (1982);
CENELEC (European Committee for Electro-
technical standardization) harmonization
documents HD 538-1 S1:1992 and HD 464 S1:
1988 / A2: 1991 /A3:1992 concerning dry type
transformers.
standard equipment
TRIHAL without enclosure (IP00):
LV pre-drilled terminations
4 flat bi-directional rollers;
4 lifting holes;
haulage holes on the underbase;
2 earthing points;
1 rating plate (on HV side);
1 warning label  electricity danger ;
HV voltage variation by off circuit tapping
links ;
HV connection bars for connection from
above ;
LV pre-drilled terminations on above;
1 routine test certificate and 1 instruction
leaflet for installation commissioning and
maintenance;
TRIHAL with IP31 metal enclosure:
TRIHAL without enclosure (IP00) as above;
IP31 integral metal enclosure (except the
bottom: IP21):
with standard anti corrosion protection;
lifting lugs for transformer and enclosure
assembly ;
access to tappings on the HV side by
removing a bolted panel which is fitted with
handles, warning label, rating plate and a
630 kVA - 20 kV/400 V
visible braid for earthing;
blanked off holes provided for fitting Ronis
ELP1 or alternatively Profalux P1 locks on the
HV tapping access panel;
2 gland plates, one on the HV and one on the
LV side. These may be removed and drilled to
take cable glands which are not supplied;
1 flap door in the base on the HV side to
permit HV cable entry. Connection made to top
of delta bars.
(1) Please state when ambient > 40�C or altitude > 1000 m.
(2) a casting system developped and patented by France
Transfo.
(3) when the transformer is energized, the winding resin coa-
ting and the heat shrinkable protection of the HV connection
bars do not ensure any protection against touch.
GEa.26 e 23/07/98 8:31 Page 4
HV/LV distribution transformers
TRIHAL cast resin transformers
160 to 3150 kVA
insulation level 24 kV - low voltage 400 V
electrical characteristics
insulation level : 7.2 kV and 12 kV
rated power (kVA) (1) ( 160 (2) 250 315 (2) 400 500 (2) 630 800 1000 1250 1600 2000 2500 3150
*)
rated primary voltage (1) 5 to 12 kV (dual voltage on request)
(3)
rated insulation level 7.2 kV for 5.5 kV - 12 kV for 10 kV
frequency (1) 50 Hz
maximum ambient temperature 40�C
(1)
secondary voltage at no load 400 V between phases, 231 V phase to neutral
HV tapping range (off-circuit) (1) ą 2.5 %
vector group Dyn 11 or Dyn 5 (delta, star neutral brought out)
losses no-load losses 610 820 950 1150 1300 1500 1700 2000 2500 2800 3500 4300 5500
(W) at 75�C 2300 3100 3600 4300 5200 6400 7700 8800 10500 12300 14900 18300 22000
load losses
at 120�C 2700 3500 4100 4900 6000 7300 8800 10000 12000 14000 17000 21000 25000
rated impedance voltage (%) 4 4 4 4 4 4 6 6 6 6 6 6 7
no-load current (%) 2.3 2. 1.8 1.5 1.5 1.3 1.3 1.2 1.2 1.2 1.1 1 1
switching current Ie/In (peak value) 13.5 13 13 13 13 12 9 9 9 9 9.5 8.5 8.5
time constant 0.13 0.18 0.20 0.25 0.25 0.26 0.30 0.34 0.35 0.42 0.4 0.5 0.6
(4)
noise level acoustic power LWA 62 65 67 68 69 70 72 73 75 76 77 81 81
dB(A) acoustic pressure LPA at 1 metre 50 53 55 55 56 57 59 59 61 61 61 65 65
insulation level : 17.5 kV and 24 kV
rated power (kVA) (1) ( 160 (2) 250 315 (2) 400 500 (2) 630 800 1000 1250 1600 2000 2500 3150
*)
rated primary voltage (1) 20 kV
(3)
rated insulation level 24 kV
frequency (1) 50 Hz
maximum ambient temperature 40�C
(1)
secondary voltage at no load 400 V
HV tapping range (off-circuit) (1) ą 2.5 %
vector group Dyn 11 (delta, star neutral brought out)
losses no load losses 650 880 1030 1200 1400 1650 2000 2300 2800 3100 4000 5000 6300
(W) at 75�C 2300 3300 4000 4800 5700 6800 8200 9600 11500 14000 17500 20000 23000
load losses
at 120�C 2700 3800 4600 5500 6500 7800 9400 11000 13100 16000 20000 23000 26000
rated impedance voltage (%) 6 6 6 6 6 6 6 6 6 6 6 6 7
no-load current (%) 2.3 2 1.8 1.5 1.5 1.3 1.3 1.2 1.2 1.2 1.1 1 1
switching current Ie/In (peak value) 10.5 10.5 10 10 10 10 10 10 10 10 9.5 9.5 9.5
time constant 0.13 0.18 0.20 0.25 0.25 0.26 0.30 0.30 0.35 0.4 0.4 0.5 0.6
(4)
noise level acoustic power LWA 62 65 67 68 69 70 72 73 75 76 78 81 81
dB(A) acoustic pressure LPA at 1 metre 50 53 55 56 56 57 59 59 61 62 63 66 65
( the rated power is defined by natural air cooling (AN).
*)
Should there be particular constraints, it may be increased by
40% by forced cooling addition (AF). Please consult us.
(1) other possibilities upon request, consult us.
(2) non standard ratings available on request.
(3) reminder of insulation levels:
rated insulation
7.2 12 17.5 24
level (kV)
kV r.m.s. 50 Hz - 1 mn 20 28 38 50
kV B.I.L. 1.2/50 �s 60 75 95 125
(4) according to CEI 551
GEa.26 e 23/07/98 8:31 Page 5
HV/LV distribution transformers
TRIHAL cast resin transformers
160 to 3150 kVA
insulation level 24 kV - low voltage 400 V
E/2
dimensions and weights
J J
L I
TRIHAL transformers without
enclosure housing (IP00)
Groupe Merlin Gerin � Usine d Ennery (Moselle) France
7.2 to 24 kV / 400 V
� 13
Dimensions and weights indicated in the table
below are provided as an example for primary
tapping
single voltage transformers 7.2 to 24kV / 400V.
links
They apply to transformers with electrical
characteristics shown in the previous table.
C
For other voltages, impedance voltages and
dual-voltages, weights and dimensions are
M different (consult us).
H
B
earthing
terminal
40 (70)
D
� 125 (200) D
A
E
In brackets, dimensions from 1000 up to 3150 kVA.
insulation level : 7.2 kV and 12 kV - low voltage 400 V
rated power (kVA) (1) ( 160 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150
*)
dimensions (mm) A 990 1070 1160 1230 1260 1340 1380 1520 1590 1710 1900 2150 2200
B 665 680 795 795 795 800 810 945 945 945 1195 1195 1195
C 1330 1370 1410 1400 1600 1630 1610 1670 1830 1940 2250 2350 2600
D 520 520 670 670 670 670 670 820 820 820 1070 1070 1070
E 650 650 800 800 800 800 800 950 950 950 1200 1200 1200
H 170 160 210 200 200 180 180 230 220 200 230 230 300
I 350 360 380 390 390 410 410 430 440 460 460 470 460
J 330 360 390 410 420 450 460 500 530 570 630 640 690
L 200 210 230 230 240 250 260 280 280 250 280 280 380
M 860 900 940 920 1050 1070 1110 1180 1440 1540 1700 1750 1750
weights (kg) 770 950 1150 1360 1580 1820 1880 2360 2710 3400 4800 5800 7300
insulation level : 17.5 kV and 24 kV - low voltage 400 V
rated power (kVA) (1) ( 160 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150
*)
dimensions (mm) A 1070 1140 1170 1230 1300 1340 1400 1560 1610 1700 1950 2030 2200
B 680 690 795 795 795 800 805 945 945 945 1195 1195 1195
C 1320 1350 1510 1490 1580 1690 1720 1920 2030 2170 2380 2440 2600
D 520 520 670 670 670 670 670 820 820 820 1070 1070 1070
E 650 650 800 800 800 800 800 950 950 950 1200 1200 1200
H 160 150 220 210 190 190 180 230 220 210 290 290 300
I 360 370 370 380 400 400 410 430 440 460 450 460 460
J 360 380 390 410 440 450 470 510 530 560 630 640 690
L 180 180 190 200 210 210 220 250 250 260 310 320 380
M 890 930 1090 1070 1110 1210 1240 1410 1510 1650 1770 1750 1750
weights (kg) 780 950 1140 1290 1520 1730 1990 2480 2810 3430 4720 5980 7300
GEa.26 e 23/07/98 8:31 Page 6
HV/LV distribution transformers
TRIHAL cast resin transformers
160 to 3150 kVA
insulation level 24 kV - low voltage 400 V
I
dimensions and weights
TRIHAL transformers with IP31
metal enclosure
7.2 to 24 kV / 400 V
� 13
Dimensions and weights indicated in the table
tapping below are provided as an example for primary
links
single voltage transformers 7.2 to 24kV / 400V.
They apply to transformers with electrical
C
characteristics shown in the previous table.
n� 217840
Groupe Merlin Gerin � Usine d Ennery (Moselle) France
For other voltages, impedance voltages and
dual-voltages, weights and dimensions are
different (consult us).
earthing
terminal 40 (70)
D
D
� 125 (200)
A B
In brackets, dimensions from 1000 up to 3150 kVA.
insulation level 12 kV - low voltage 400 V
rated power (kVA) (1) ( 160 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150
*)
dimensions (mm) A 1390 1480 1530 1550 1570 1620 1650 1880 1820 2080 2200 2550 2450
B 875 895 920 945 955 975 935 1020 1020 1040 1300 1300 1350
C 1680 1750 1760 1780 1840 2000 1920 2050 2150 2360 2850 3000 2900
D 520 520 670 670 670 670 670 820 820 820 1070 1070 1070
I 520 530 550 560 560 580 580 650 630 640 700 710 850
weights (kg) 960 1150 1360 1580 1810 2060 2120 2620 2990 3750 5340 6340 7900
insulation level 24 kV - low voltage 400 V
rated power (kVA) (1) ( 160 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150
*)
dimensions (mm) A 1380 1430 1530 1530 1540 1560 1600 1710 1760 1860 2100 2120 2450
B 850 865 875 890 910 920 935 1020 1020 1030 1265 1265 1350
C 1560 1590 1750 1730 1820 1930 1960 2160 2270 2410 2660 2710 2900
D 520 520 670 670 670 670 670 820 820 820 1070 1070 1070
I 530 540 550 560 570 570 580 650 640 630 710 820 850
weights (kg) 960 1140 1340 1500 1740 1960 2230 2740 3080 3760 5200 6510 7900