E.M.G. Snc

Via Giorgio La Pira, 6

52012 Bibbiena St. (AR)

Italia


fon: +39 0575-536860

fax: +39 0575-536860

e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

web: http://www.emgtrasformatori.it

 

EMG-ISO 9001-2000-200

Castresin 12kV class

General characteristics:

MV winding: Cast Resin

IEC 60076 – HD 464 S1 – DIN 42523 – CEI 14 -32

Frequency 50 Hz
Secondary Voltage at No-Load 400V
Regulation Taps On HV Side ± 2 x 2,5%
Vector Group Dyn11
Primary Insolation level 12 - 28 - 60 / 75kV
Secondary Insolation level 1,1 - 3kV
Ambient Temperature -25...+40°C
Environment-Climatic-Res. To Fire Class E2-C2-F1

 

Specifications:

Typ P
(kVA)
P0
(W)
PCC,75°C
(W)
UCC
(%)
I0
(%)
LWA
(dB/A)
Ohne Box(IP00) Mit Box (IP21)
L
(mm)
B
(mm)
H
(mm)
Masse
(kg)
L
(mm)
B
(mm)
H
(mm)
Masse
(kg)
TTRES-0100 100 390 1910 6 1,7 46 1000 645 940 500 1750 850 1350 650
TTRES-0160 160 500 2280 6 1,4 46 1030 645 1090 650 1780 860 1500 810
TTRES-0200 200 560 2560 6 0,9 48 1120 645 1170 850 1840 890 1580 1020
TTRES-0250 250 690 2880 6 1,2 48 1140 645 1190 890 1850 900 1600 1060
TTRES-0315 315 820 3440 6 1,1 50 1200 795 1210 1030 1890 920 1670 1240
TTRES-0400 400 990 4280 6 1,0 51 1260 795 1280 1230 1930 940 1740 1450
TTRES-0500 500 1110 5240 6 1,0 52 1270 795 1380 1350 1940 940 1840 1580
TTRES-0630 630 1250 6150 6 0,8 54 1270 795 1550 1550 1940 940 2010 1790
TTRES-0800 800 1670 6740 6 0,8 54 1440 980 1580 2160 2050 1000 2090 2440
TTRES-1000 1000 2580 7650 6 1,1 58 1720 980 1720 3360 2290 1120 2280 3750
TTRES-1250 1250 2600 10600 6 0,9 60 1620 980 1780 2980 2180 1060 2340 3360
TTRES-1600 1600 2900 12850 6 0,7 62 1680 980 1950 3570 2210 1080 2510 3970
TTRES-2000 2000 3540 14030 6 0,7 64 1780 1230 2040 4310 2290 1110 2650 4760
TTRES-2500 2500 4360 16430 6 0,8 66 1840 1230 2210 5040 2330 1130 2820 5520
TTRES-3150 3150 5570 21900 6 0,7 68 2190 1270 2320 6780 2560 1250 3030 7420

Enclosure (box) available: IP20 - IP31 - IP23 - IP66 RAL 7032

For more information, see the catalog (Italian / English)

Description:

E.M.G. - Transformersare designed and manufactured according to CEI 14-32 and IEC 60076-11 CENELEC HD 464 and CENELEC HD 528 On request, additional standards can be applied.

The core of these transformers is made of cold rolled grain oriented steel with low losses. The surface is insulated in order to reduce eddy current losses. A special technology makes it possible to minimize the losses, and Vibaration SOUNDS. The Ns-windings are made of aluminum or copper tape (standard UNI 4507). They are insulated by coating with a special resin film. The impregnation of the windings is carried out under vacuum in order to prevent moisture absorption. This allows these transformers in high ambient temperatures, are used for heavy soiling under tropical or marine conditions.

The Ms-winding is made ​​of aluminum or copper band, surrounded by a thermal insulating material of the class F, and aligned in a special form. After heat treatment, it is cast with epoxy resin in vacuum. After the time-and temperature-controlled Polymeristion and relaxation gives a compact unit, the winding is protected by an adequate thickness of the resin. This technology allows to create MS-windings, which is protected against any kind of external accidents such as fire, humidity and condensation.

characteristic data

  • The epoxy resin used contains minerals, such as silica and alumina, and is cast in an autoclave under Vakkuum to achieve a perfect degassing with respect to the presence of air. In terms of insulation, epoxy resin is in fire class F. He has successfully passed the tests for the class E2, C2 and F1 as defined in EN IEC 60076 standards.
  • The primary windings are equipped with a 5-position bridging switch, with which an adjustment of ± 2 x 2.5% is possible. Other values ​​are available on request.
  • The ambient temperature must not exceed 40 ° C usually, and the temperature increase should I be about 100K with standard transformers in the windings.
  • E.M.G. Transformers can be performed for use in locations with ambient temperatures up to 55 ° C!
  • E.M.G. Transformers have a very low noise level of 46 dB (A) to 68 dB (A).
  • The maximum height of standard transformers is 1000 m above sea level. But it can also be manufactured transformers for higher-up locations.
  • The maxiDie transformers are equipped with Pt100 3 pcs (1 pcs in each winding Ns), connected to a temperature control unit.
  • For proper operation of the transformer a correct and natural ventilation in the room must be guaranteed. The operating conditions in function of the insulation transformer are defined by IEC IEC 60076-11 14-32.
  • For special applications where a temporary increase in performance over the nominal values ​​occurs, the use of a forced ventilation is recommended.

Tests carried out

  • Measurement and inspection of the transmission ratio and the gear group
  • Measuring the resistance of the windings
  • Measurement of no-load losses and no-load current
  • Measuring the losses of load
  • Measurement of short-circuit voltage
  • Insulation test voltage
  • Insulation test of the induced voltages
  • Measurement of Partial Discharge

Test Type (optional):

  • pulse Test
  • temperature rise

Special test (on request):

  • Measurement of noise emitted

operating conditions

In line with the environmental, climatic and fire-resistant categories the transformers can be eingestzt under the following conditions:

environment class

  • E0 No condensation on the transformer, minor soiling, installation in a clean, dry place
  • E1 Occasional condensation and little pollution
  • E2 The transformer subject to considerable condensation and / or heavy contamination

climate class

  • C1 The transformer is not suitable for operation at temperatures below -5 ° C, but can be up to -25 ° C during transportation
  • C2, the transformer can be operated, transported and stored to -25 ° C.

fire Class

  • F0, there is no fire risk, no precautions must be taken to reduce the flammability
  • F1 In case of fire, the transformer is self-extinguishing, and there are no harmful substances and / or toxic fumes emitted