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MOULDED
COMPONENTS |
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ANGLE
AND CAP RINGS
Range of Manufacture |
DISC
ANGLE AND CAP RINGS
Range of Manufacture |
| Thickness
Height*
Flange*
Radius at
bend
Diameter |
2
to 5 mm
upto 200 mm
upto 250 mm
5 to 25 mm
500 - 3000 mm |
Thickness
Height*
Flange*
Radius at
bend
Diameter
|
1 to
3 mm
upto 20 mm
upto 35 mm
1.5 max
450 - 3000 mm |
| Shall
be supplied in sectors |
Shall
be supplied in sectors |
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Note:
1. Scarfing shall be
done on each sector.
2. *Larger dimensions can be supplied on specific request.
3. For details about the number of sectors, scrafing length
and tolerance please
refer to tolerance sheet for moulded
components.
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PROPERTIES OF PRESSBOARD MOULDINGS
(Ref. Standard: IEC - 60641-3-1, B5.1)
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APPARENT
DENSITY, gm/cc (range)
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0.75
- 0.90 |
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OIL
ABSORPTION, min (%) |
35
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MOISTURE
CONTENT, max (%) |
8.0 |
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ELONGATION,
min (%)
a) MD
b) CD |
7
8
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SHRINKAGE
IN AIR,
max (%)
MD
CD
THICKNESS |
0.8
1.2
6.0
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ASH
CONTENT, max (%) |
0.5 |
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pH
of AQUEOUS EXTRACT, Range |
6.0
- 9.0 |
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CONDUCTIVITY
OF AQUEOUS EXTRACT, Max (mS/m)
|
7.0 |
ELECTRICAL
STRENGTH IN OIL (BDV), min (kV/mm)
(Tested with special electrodes) |
20
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SNOUTS:
Snouts
are the specialty moulded
components made to dimensions as per customer’s design.
They are used to improve insulation and facilitate shielding at tapings
in the higher rating transformers upto 400 kV.
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