The medium voltage fuse-base (SSMT) is used in the medium voltage electrical energy networks to protect the medium voltage electrical lines that feed the transformers within the transforming posts.   

 soclu cu sigurante fuzibile, soclu cu sigurante fuzibile de medie tensiune, transformatoare, posturi de transformare

It is used mainly in electrical power plants, transforming and distribution electrical stations, local stations and substations, transforming posts.  

 

Constructive versions:


  • SSMT 24 kV is made for outdoor use, with or without ZnO dischargers;
  • Depending on the insulators used, fuse-bases equipped with ceramic, compound or resin insulators can be manufactured.

 

 

 

 

 

 

 

 

 

 

 

Technical data

UM

Nominal / maximum values for the fuse

7,2 kV

12 kV

17,5 kV

24 kV

1

2

3

4

5

6

Rated voltage

kV

7,2

12

17,5

24

Rated frequency

Hz

50

50

50

50

Minimum distance between the poles' axes

Mm

90

120

160

220

Lighting impulse withstand voltage

 

 

 

 

 

  • between poles and to earth

kV

60

75

95

125

  • for the base's isolation gap

 

70

85

110

145

Rated current

A

200

160

100

80

Withstand voltage 1 min. at industrial frequency 

 

 

 

 

 

  • between poles and to earth

kV

20

28

38

50

  • for the base's isolation gap

 

23

32

45

60

Pollution level acc. PE 109 (ICEMENERG)

Area

Max. II

Max. II

Max. II

Max. IIs

 soclu cu sigurante fuzibile, soclu cu sigurante fuzibile de medie tensiune, transformatoare, posturi de transformare

 

 

 

Rated voltage (kV)

Rated current (A)

Weight (kg)

Dimensions

a

b

c

d

e

f

7,2

2….5

-

440

630

653

293

765

125….250

-

440

630

805

443

1165

12

2,5….80

-

440

630

653

293

100….200

-

440

630

805

443

1165

17,5

2,5….100

-

440

630

805

443

1165

2,5….80

-

440

630

805

443

1165

24

100

-

440

630

898

538

1165

36

2,5….31,5

-

440

630

898

538

1165

40,5

2,5….50

-

440

630

898

538

1165

● Depends on the height of the support insulators used

 soclu cu sigurante fuzibile, soclu cu sigurante fuzibile de medie tensiune, transformatoare, posturi de transformare

     

 

The medium voltage fuse-bases are products designed in accordance with the EM (CEI) standards' requirements. They are produced in accordance with the stipulations of ISO 9001/2008; ISO 14001/2004; OHSAS 18001/2007. Product approval letter issued by S.C. ELECTRICA  S.A.