11kV - 2000kVA , Oil - Immersed Transformer, Three Phases, Two
Winding, Power Distribution
Oil-immersed type transformer features low noise, low loss,
rational structure, high quality material, scientific design,
strict production technology and advanced test method. The product
also has the following additional advantages:
1. High mechanic strength, great anti-short circuit capability,
excellent anti-lightning impulse capability and high reliability.
All these performance indexes rank first in the industry in China.
2. Excellent overload capability, capable of continuously working
under 110% rated load.
3. Low loss, energy-saving, economic and maintenance free.
4. Nice appearance, small size, less installation space occupation
and low engineering cost.
5. Each performance index and technical specification excels that
specified in China GB, international IEC and industrial standards.
6. Hermetically sealed corrugated tank structure is adopted, thus
to effectively prevent air corrosion to the oil and prolong service
lifetime of the transformer.
The core is manufactured with high quality cold rolled
grain-oriented silicon steel of high magnetic conductivity, and 45°
Mitring and steps overlapping structure is used for core
production, thus to effectively reduce no-load loss and no-load
The transformer adopts class-A insulation. The HV and LV windings
are arranged in concentric way. Between the windings are
oil-clapboard insulation structure built with paper cylinder and
small oil conduit.
The tank is jointed with high-quality steel. Rust-removing and
phosphorization processes are carried out for the tank surface,
then the surface is coated with FVC anti- erosion paint, thus to
effectively prevent grease pollution and chemical erosion. The
appearance is nice and harmonic with the environment. The whole
structure is easy for installation and maintenance. It can be
widely applied in outdoor environment and under harsh conditions.
The transformer is equipped with HV & LV bushings, oil drain
valve, earthing bolt, lifting board, rating plate, pressure relief
valve and other accessories. Transformers of over 800KVA power are
equipped with signaling thermometer and gas relay.
Instructions for Operation and Maintenance of Off-circuit
Tap-changer with Strip Type
This instruction is the brief introduction of the strip off-circuit
tap-changer. The flange and lifting board of it are fixed on the
transformer cover, the function for the tap-changer is that we can
operate the tap-changer on the transformer cover, by regulating the
tap position to realize the voltage regulating of transformer as
required. But only after the transformer is cut off from the
electrical network, when the transformer is under off-circuit
state, could we operate this type of tap-changer.
When you prepare to install a tap-changer , please take down the
switch cover , solid nut , regulating gasket , press washer and
sealing gasket , then pass the tap-changer body together through
the low part of the tank cover , then put on the sealing gasket and
the press washer being removed just now , and put on the regulating
gaskets , the number of regulating gaskets are according to the
thickness of tank cover , then screw up the solid nut and the
|I Basic Information |
|1.01||Type Designation|| ||PEO-S-KVA/HV/LV|
|1.02||Applicable Standards|| ||IEC 60076|
|1.03||Manufacturer|| ||Pearl Electric|
|1.04||Country of Origin|| ||China|
|II Pearl Electric Performance |
|2.05||Number of phase|| ||Three|
|2.06||Insullation Class|| ||Class A|
|2.07||Cooling Method|| ||ONAN|
|2.08||Tapping Ranging|| ||±2*2.5% on HV side|
|2.09||Vector Group|| ||Dyn11|
|2.13||Load Loss (@75℃)||W||20000|
|2.14||Max. Ambient Temperature||℃||40℃|
|2.15||Top oil temperature rise||K||60|
|2.16||Winding temperature rise||K||65|
|2.17||Impulse Withstand Voltage||(HV/LV)|
|2.18||Power Frequency Withstand Voltage||(HV/LV)|
|2.19||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||Main Insulation Materials|| ||Mineral Oil|
|3.05||Pressure relief valve||pcs||Yes,with alarm and trip|
|3.06||Gas relay||pcs||Yes,with alarm and trip|
|3.07||HV&LV Cable Box & Extension Busbar||pcs||Yes|
|3.09||Oil thermometer||pcs||Yes,with alarm and trip|
|3.12||Oil Conservator||pcs||Hermetiacally-sealed tank|
|3.14||Cooling device||pcs||Corrugated fins|
|IV OTHERS |
|4.02||Total mass(with oil)||kg||4940|