ELPROM TRAFO CH Oil Filled Distribution Transformers 25-2500 KVA
Description
| Minimum Order Quantity: | ONE 40' CONTAINER |
| Payment Terms: | D/P |
| Coil Number: | Other |
| Coil Structure: | Other |
| Phase: | Three |
| Usage: | Power |
| Model Number: | TM |
| Brand Name: | ELPROM TRAFO CH |
| Place of Origin: | Bulgaria |
Product Details
15. Dial type - thermometer with alarm contacts(over800 kVA )
14. Dehydrating breather (for TM series)
13. Wheels
12. Buchholz relay (over 800 kVA)
11. Oil filling venting plug
10. Conservator (for TM series)
9. Lifting lugs on tank cover
8. Oil-draining and sampling valve DIN 42551
7. Oil-level gauge
6. Thermometer pocket with thermometer 3/4
5. Earthing terminal
4. Off-load tap-changer driving mechanism
3. Rating plate and diagram
2. LV Bushings DIN 42530 or cable box
1. HV Bushings DIN 42531 or cable box
STANDARD ACCESSORIES
ELPROM TRAFO CH PCL
OIL IMMERSED DISTRIBUTION TRANSFORMERS 25 2500 kVA
9
subject to atmospheric influence are galvanized.
hot-dip zinc galvanized. The fitting elements (bolts, nuts, washers etc.)
operational climatic conditions. Upon request the tank and cover are
conditions. The thickness of the coating is increased depending on the
providing a long life to the transformer under tropical humid climatic
is with excellent mechanical and corrosion resistant properties thus
thickness of the protective coating of min. 60 mm is achieved which
alkyd enamel. Each coat is dried up in electric ovens. Thus a sufficient
several layers of anti corrosion primer and finished by high quality
coated by an oil resistant enamel. The outer surfaces are coated by
and sandblasted. The inner parts of the core and coil assembly are
Before assembly of the transformer all steel parts are degreased
CORROSION PROTECTION
60296.
The transformer oil is inhibited, without PCB according to IEC 296, IEC
TRANSFORMER OIL
Other upon request
Air cable box optional
side (Elastimold system) optional.
Special epoxy resin bushing and plug-in cable connector at the HV
and DIN 42530 for the LV terminals standard version.
Porcelain bushings according to DIN 42531 for the HV terminals
TERMINALS
pressure of 40 kPa.
penetrating agents in a special test field and by testing with over
Ar-CO2. High quality of the welding seams is guaranteed by tests with
movement of the transformer. Welding is done in protective atmosphere
carriage with wheels is fitted to the tank bottom allowing bi-directional
the bottom the walls are welded to the tank bottom. The transport
are welded to a flange frame to which the tank cover is bolted. At
and plasma welding produce the tank walls. In the upper part the walls
with low carbon content. Contemporary lines for automatic corrugation
structure with corrugated walls made out of cold rolled steel sheets
The standard type of the transformer tanks is rectangular a welded
TANK
thick insulation paper layer and insulation tubes and press board.
adjacent phases. The leads from the HV winding are insulated with
on it. The off-load tap-changer is situated vertically between two
active part is lifted along with the cover by the lifting eyes situated
by the tank bottom. Thus it remains stable during transportation. The
windings. The active part is fixed to the tank cover and is supported
situated outside the yokes. Axial bolts do the axial tightening of the
The upper and lower yoke are tightened by steel beams and bolts
CORE AND COIL ASSEMBLY (ACTIVE PART )
capability according to the requirements of IEC.
direction result in a high electrical, thermal and dynamic withstand
properly dimensioned insulation, effective tightening in radial and axial
most contemporary technology, the optimal selected cooling ducts,
high ratings. The optimal design of the windings and employment of
reduction of the axial electrodynamics forces at short circuit for the
of LV foil winding and multi layer HV winding results in a significant
out of copper foil for ratings 400 kVA and above. The combinations
out of profiled section copper for the ratings including 250 kVA and
winding is situated at the core limb and is foil cylindrical type made
or continuously wound disk winding for the higher ratings. The LV
for the lower ratings and two- or four-section multi-layer, block-coils
concentrically on the core limbs. The HV winding is a multi-layer one
to hot transformer oil. The windings are of cylindrical type situated
sheet. They have an insulation of cable paper or enamel resistant
99.97 conductors with round, rectangular cross-section and copper
The windings are made out of high quality copper E Cu 99.90-
WINDINGS
and a higher mechanical strength of the overlapping zones.
45
OIL IMMERSED POWER / DISTRIBUTION TRANSFORMERS
- Coil Number:Other
- Coil Structure:Other
- Phase:Three
- Usage:Power
- Model Number:TM
- Brand Name:ELPROM TRAFO CH
- Place of Origin:Bulgaria
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