11kV - 1250kVA Cast Resin Dry Type Transformer, Three Phases, Two
Winding, Power Distribution
As per IEC60076 standard required, cast resin dry type transformer
designed and manufactured by Pearl Electric is welcomed in home and
abroad with features of low loss, artistic apearnce and compact
Scientific computing tools:
We use advanced electric, magnetic, thermal and mechanical
computing software to calculate electro-magnetic field and magnetic
flux leakage distributions, to analyzewave processes, and to select
reliable insulation margin, thus to guarantee product reliability,
enable low noise level,clamp-proof,anti-fouling,high mechanical
strength, flame resisting, strong overload ability and low partial
Cast Resin Dry Type Transformer, Low Noise, Low Loss and Low Partial Discharge.
They are application to power transmission and distribution
plants,stations,aiports,offshore drilling platforms,especially to
heavy load centers and places with special fire protection
- Flameproof and no blast, no pollution, no venomous gas. Pearl has
passed F1 test qualified by authority lab.
- High dampproot, Safe operation in 100% vilative humidity and other
tough environment, no demoisture procedure is needed.
- Strong capacity of heat resistant.
- High over-load capability, running at 110% rated load, and 150%
rated load at AF.
- Contour artistic and compact size, low cost for installing. Easy
- Performance and parameter conform to or excel the standards of GB,
IEC or industry.
1 If temporary storage is necessary, the package should not be
removed. If it is dismantled for acceptance inspection, repackaging
should be made afterwards.
2 For storage for a longer period, the transformer should be stored
in a warehouse, which is clean, dry, and free of chemical or
3 The transformers should not be stacked.
4 For temporary outdoor storage, transformer should be put on
wooden spacers at least 100mm high.
Inspection before Putting into Service
1 Check whether any fixed parts and connections have become loose.
Re-tighten them if necessary.
2 Check whether all parts assembled after transport are in good
condition and whether any alien objects have become lodged inside
the transformer (especially the air ducts). If excessive dust has
accumulated on the transformer, clear it in accordance with section
3 Check whether the fans, temperature control devices and other
accessories can function normally. Pay attention to the direction
of rotation of the fans if there is a three-phase power source.
Usually, air is blown up into the coil from the bottom. If not, the
phase sequence of the power source should be changed. Refer to the
cooling system instructions for details. For temperature control
and indication system and other accessories, wire connection should
be done according to the
|I Basic Information || || |
|1||Rated Voltage ratio||kV||11kV / 0.433 kV|
|1.02||Applicable Standards|| ||IEC 60076|
|1.03||Manufacturer|| ||Pearl Electric|
|1.04||Country of Origin|| ||China|
|II Electric Performance || || |
|2.05||Number of phase|| ||Three|
|2.06||Insullation Class|| ||Class H|
|2.07||Temperature Rise (@40℃ ambient temperature)||K||125K|
|2.08||Cooling Method|| ||AN|
|2.09||Tapping Ranging|| ||±2*2.5%|
|2.1||Vector Group|| ||Dyn11|
|2.14||Load Loss (@120℃)||W||11300|
|2.15||Local Partial discharge||pC||<10PC|
|2.16||Impulse Withstand Voltage (HV/LV)||kV||75/0|
|2.17||Power Frequency Withstand Voltage|
|2.18||Rated Duration of Short Circuit||s||2|
|III Materials & Accessories || || |
|3.01||Core Materials|| ||Silicon Steel Sheet|
|3.02||Winding Materials|| ||Copper conductor/foil|
|3.03||Insulation methods|| ||HV vacuum cast / LV impregnant|
|3.04||Main Insulation Materials|| ||Epoxy Resin|
2 Applied Standard
GB/T10228 , GB1094.11 , IEC60076-11 , DIN42523