connections

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

500 mm (2)

200 mm

200 mm

LV

HV

HV

n

LV

cable support

cable support

minimum clearances required

HV and LV connection

HV/LV distribution transformers

TRIHAL cast resin transformers
160 to 3150 kVA
insulation level

< 24 kV - low voltage 400 V

X

X

X (1)

X

120

mini

cable support

HV

LV

n

120

mini

insulation

dimensions X (mm)

(kV)

full wall

grid wall

7.2

90

300

12

120

300

17.5 - 24

220

300

minimum clearances required

HV and LV standard connection

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.

(2) 500 mm. for an access to tapping on the HV side,
but 200 mm. minimum.

(1) Don’t take into account the access to tapping on the HV side.

TRIHAL transformers without
enclosure housing (IP00)

The winding resin coating and the plug-in
connectors don’t ensure any protection against
touch when the transformer is energized.

TRIHAL transformers with
IP31 metal enclosure

LV terminations

40

Ø 14

15

33

33

80

4 x Ø 14

23,5

33

50

100

4 x Ø 14

25

50

80

40

160

4 x Ø 16

35

50

33

70

4 x Ø 14

23,5

33

160 to 500 kVA*

thickness 5

630 to 800 kVA*

thickness 6

1000 to 1250 kVA*

thickness 10

1600 kVA*

thickness 12

2000 kVA*

thickness 10

*Valables pour 400 et 410 V en aluminium.

GEa.26 e 23/07/98 8:30 Page 1

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HV/LV distribution transformers

TRIHAL cast resin transformers
160 to 3150 kVA
insulation level

< 24 kV - low voltage 400V

France Transfo
B.P. 10140
F 57281 Maizières-lès-Metz cedex
tel. [phone]
telex 860 418 F
fax [phone]

Due to the evolution of standards and materials, the present
document will bind us only after confirmation from technical
department.

Edition France Transfo
Conception: COREDIT
04/97 - printed in France

ref. GEa.26 e

lifting hole

HV winding

HV connection

terminal

tappings

connection bar

earthing terminal

LV winding

magnetic core

LV connection
terminal

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 400 V

description

This range comprises transformers in accord-
ance with the following specifications :

m

50 Hz three-phase transformers for indoor

installation (outdoor installation or other
frequency on request);

m

cast resin dry type;

m

thermal class F;

m

ambient

< 40°C, altitude < 1000m

(1)

;

m

natural air cooling type AN;

m

LV winding usually made of aluminium sheet

(insulated strip for low ratings). The core and LV
windings assembly is given an additional
protective coating of alkyd resin;

m

HV winding manufactured from insulated

round wire or rectangular strip;

m

HV winding is vacuum cast in epoxy

resin

(2)

efficiently fireproofed with trihydrat-

ed alumina ;
TRIHAL transformers can be supplied:

m

without enclosure (IP00).

The installer must ensure that access to the live
core and windings is prevented

(3)

;

m

with IP31 metal enclosure.

It prevents direct contact with live components.

standards

These transformers are in accordance with
standards:

m

IEC 76-1 à 76-5;

m

IEC 726 (1982);

m

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):

m

4 flat bi-directional rollers;

m

4 lifting holes;

m

haulage holes on the underbase;

m

2 earthing points;

m

1 rating plate (on HV side);

m

1 warning label “electricity danger ”;

m

HV voltage variation by off circuit tapping

links ;

m

HV connection bars for connection from

above ;

m

LV pre-drilled terminations on above ;

m

1 routine test certificate and 1 instruction

leaflet for installation commissioning and
maintenance;
TRIHAL with IP31 metal enclosure:

m

TRIHAL without enclosure (IP00) as above;

m

IP31 integral metal enclosure (except the

bottom: IP21):

M

with standard anti corrosion protection;

M

lifting lugs for transformer and enclosure

assembly ;

M

access to tappings on the HV side by

removing a bolted panel which is fitted with
handles, warning label, rating plate and a
visible braid for earthing ;

M

blanked off holes provided for fitting Ronis

ELP1 or alternatively Profalux P1 locks on the
HV tapping access panel ;

M

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 ;

M

1 flap door in the base on the HV side to

permit HV cable entry. Connection made to top
of delta bars.

options

The following fittings can be provide:

m

1 thermal protection module comprising

6 PTC thermostatic sensors (2 per phase)
connected to a terminal board with a plug-in
connector and an electronic converter with 2
contacts (alarm 1 and alarm 2) supplied
separately;

m

3 HV plug-in connectors (HN 52 S 61) may

be used as follows:

M

fixed on a mounting plate from the upper

core clamp (TRIHAL IP00);

M

fixed on top of the transformer enclosure on

the HV side (TRIHAL IP 31);

m

straight or elbow connectors can also be

supplied. Please state cable characteristics;

m

additional LV terminal plates (tinned copper);

m

1 locking device to secure plug-in bushings

(without lock and indiscriminitely suitable for a
Ronis EPL11AP, ELP1, ELP2 or Profalux P1,
P2, V1, V21 lock mounting);

m

forced cooling by fans to give an AF rating

of 140 %.

Nota : These options are those usually
specified and many alternatives can be
provided on request.

(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.

250 kVA (IP00) 20 kV/400 V +

400 kVA (IP31) 20 kV/400 V

630 kVA - 20 kV/400 V

A F A Q N 1 9 9 0 / 1 1 3 b

I S O 9 0 0 1

LV pre-drilled terminations

GEa.26 e 23/07/98 8:31 Page 3

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

rated insulation level

(3)

24 kV

frequency

(1)

50 Hz

maximum ambient temperature

40°C

secondary voltage at no load

(1)

400 V

HV tapping range (off-circuit)

(1)

± 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

noise level

(4)

acoustic power L

WA

62

65

67

68

69

70

72

73

75

76

78

81

81

dB(A)

acoustic pressure L

PA

at 1 metre

50

53

55

56

56

57

59

59

61

62

63

66

65

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)

rated insulation level

(3)

7.2 kV for 5.5 kV - 12 kV for 10 kV

frequency

(1)

50 Hz

maximum ambient temperature

40°C

secondary voltage at no load

(1)

400 V between phases, 231 V phase to neutral

HV tapping range (off-circuit)

(1)

± 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

noise level

(4)

acoustic power L

WA

62

65

67

68

69

70

72

73

75

76

77

81

81

dB(A)

acoustic pressure L

PA

at 1 metre

50

53

55

55

56

57

59

59

61

61

61

65

65

HV/LV distribution transformers

TRIHAL cast resin transformers
160 to 3150 kVA
insulation level

< 24 kV - low voltage 400 V

insulation level : 7.2 kV and 12 kV

electrical characteristics

insulation level : 17.5 kV and 24 kV

(

*

)

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 :

(4) according to CEI 551

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 µs

60

75

95

125

GEa.26 e 23/07/98 8:31 Page 4

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

HV/LV distribution transformers

TRIHAL cast resin transformers
160 to 3150 kVA
insulation level

< 24 kV - low voltage 400 V

dimensions and weights
TRIHAL transformers without
enclosure housing (IP00)
7.2 to 24 kV / 400 V

Dimensions and weights indicated in the table
below are provided as an example for primary
single voltage transformers 7.2 to 24kV / 400V.
They apply to transformers with electrical
characteristics shown in the previous table.
For other voltages, impedance voltages and
dual-voltages, weights and dimensions are
different (consult us).

D

M

C

E

D

I

A

earthing

terminal

tapping
links

J

J

L

E/2

B

Ø 125

(200)

40

(70)

H

Ø 13

Groupe Merlin Gerin · Usine d’Ennery (Moselle) France

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

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

insulation level : 17.5 kV and 24 kV - low voltage 400 V

In brackets, dimensions from 1000 up to 3150 kVA.

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

dimensions and weights
TRIHAL transformers with IP31
metal enclosure
7.2 to 24 kV / 400 V

D

C

B

D

I

A

earthing

terminal

Ø 125

(200)

40

(70)

Ø 13

tapping
links

nº 217840

Groupe Merlin Gerin · Usine d’Ennery (Moselle) France

Dimensions and weights indicated in the table
below are provided as an example for primary
single voltage transformers 7.2 to 24kV / 400V.
They apply to transformers with electrical
characteristics shown in the previous table.
For other voltages, impedance voltages and
dual-voltages, weights and dimensions are
different (consult us).

insulation level

<

12 kV - low voltage 400 V

insulation level

<

24 kV - low voltage 400 V

In brackets, dimensions from 1000 up to 3150 kVA.

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

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

GEa.26 e 23/07/98 8:31 Page 6

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