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SINGLE-PHASE SHELL TRANSFORMER

(also manufactured in single quantities)

TMUF
  • This particular designation indicates the type of magnetic core that is used.
    The core is formed by a central column, upon which is placed the electric winding, and two outer columns which complete the magnetic circuit, enclosing the coil.
  • These single-phase transformers are manufactured in accordance with the CEI 96-1, CEI 96-2 (60742) and CEI 96-3 (EN61558) standards when the voltage is below 1000 V.
    When it goes over this limit, we refer to IEC 14-8 (IEC 726). 

KEY FEATURES OF THE SINGLE-PHASE SHELL TRANSFORMERS

For SELV-PELV safety systems CEI-EN 61558-2-6 safety transformers (with secondary voltage not exceeding 50 Veff) should be requested, with a double or reinforced isolation. 

  • These products are designed according to the client’s specifications (they can be produced according to any particular technical or dimensional requirements)
  • The isolating materials used in their construction are listed in classes F (155°C) and H (180°C).
  • Class I (requires ground connection) – Class II (produced only up to 1KVA)
  • Degree of protection from IP00 to IP20.
  • They are soaked in oven-dried paints and resins (guarantee of perfect isolation, quiet operation and reliability also in humid and tropical climates).
  • Routine or type-based testing for each single device.
  • On request they can be supplied with ELECTROSTATIC SCREENS AND THERMOSTATIC SENSORS inserted between the windings.

The tables below show the indicative dimensions of the transformers, having an input voltage between 36 and 650V and an output voltage between 36 and 650V at a frequency of 50-60Hz.

Construction with terminals on one or on two sides of the transformer depends on the number of input and output voltages from the single-phase transformer itself and on the type of isolation.

DIMENSIONS MAY VARY DEPENDING ON THE NUMBER OF INLETS, OUTLETS AND CURRENT INTENSITY.

See: Technical notes

TYPE

25.25 25.30 25.35 25.40 28.28

28.30

28.35

28.40

28.50

32.32

32.40

32.45

32.50

32.60

36.50

36.55

36.60

40.50

40.60

VA

20/30

30/50

50/60

60/70

40/75

50/75

60/80

110

120

100

125

150

200

220

250

300

350

400

500

A

75

75

75

75

85

85

85

85

85

97

97

97

97

97

108

108

108

120

120

B

55

60

65

70

60

62

67

72

82

68

76

81

86

96

90

95

100

92

102

C

80

80

80

80

90

90

90

90

90

98

98

98

98

98

106

106

106

122

122

D

53

53

53

53

74

74

74

74

74

85

85

85

85

85

95

95

95

104

104

E

44

49

54

59

48

50

55

60

70

54

62

67

72

82

74

79 84

76

86

F

0/37

0/37

0/37

0/37

60

60

60

60

60

68

68

68

68

68

75

75

75

80

80

G

73

78

83

88

75

77

83

88

98

78

86

91

96

106

93

98

103

104

114

Kg.

0.9

1

1.18

1.4

1.52

1.65

1.8

1.95

2.2

1.8

2.25

2.6

3

3.8

4.1

4.5

5

5.4

6

trasformatore

Dimensions expressed in mm.

From type 25.25 to type 40.60, they can be supplied in single packaging using environment-friendly cardboard.

The use of shell-type transformers with a power level above 2500VA is not recommended when a continuous and non-intermittent service is required; for power ratings over 3000VA it is advisable to use

See:  single-phase column-type. 

TM CAVI

TYPE

40.70 40.80 50.50 50.60 50.70

50.80

50.90

50.100

60.70

60.80

60.90

60.100

60.120

60.140

80.80

80.90

80.100

80.110

VA

550

600

700

800

1000

1200

1300

1500

1800

2000

2200

2500

2800

3000

3500

4000

4500

5000

A

120

120

150

150

150

150

150

150

180

180

180

180

180

180

240

240

240

240

B

112

122

96

106

116

126

136

146

126

136

146

156

176

196

160

170

180

190

C

122

122

146

146

146

146

146

146

180

180

180

180

180

180

242

242

246

246

D

104

104

132

132

132

132

132

132

130

130

130

130

130

130

180

180

180

180

E

96

106

78

88

98

108

118

128

102

112

122

132

152

172

120

130 140

150

F

80

80

105

105

105

105

105

105

 

 

 

 

 

 

 

 

 

G

124

134

105

115

125

135

145

158

144

154

164

174

198

218

165

178

190

210

Kg.

6.7

7.6

7.8

9.1

10.5

11.4

12.9

14.7

16.8

18

19.3

20.7

25

29.4

30.8

35

39.5

43

Contact us now for more information

    NOTES: INFORMATION CONCERNING SIZES IS PURELY INDICATIVE AND MAY CHANGE WITHOUT PRIOR NOTICE

    THE AUTO-TRANSFORMER IS A TRANSFORMERS WITH A SOLE WINDING COMMON TO BOTH PRIMARY INPUT VOLTAGE AND OUPUT VOLTAGE, AND WITHOUT ELECTRICAL ISOLATION BETWEEN THE SAME.

    The equivalent power (referred to as core power in current regulations) is provided by the formula:

    Peq=Pn .( Vmax-Vmin.)

    _________________

    Vmax

    where: Peq = actual sizing power (core power)– Pn = rated nominal power (shaft power) — Vmax = highest voltage –Vmin = owest voltage.

    To establish the dimensions of the auto-transformer apply the formula to obtain an equivalent power level and then, on the basis of the power obtained, refer to the following tables.

    Carbognin srl

    We are suppliers of each type of industry which requires the use of electrical and electronic equipment.

    Where we are

    V. Crispi, 9 (z.a).
    36075 - Montecchio Maggiore
    Vicenza - Italy

    Contacts

    Phone: +39 0444 698877
    Fax: +39 0444 698759
    carbognin@carbognin.it

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