The Oil Immersed Transformer series are
the kind of the transformer with low noise, low loss and low
partial discharge. With rational structure, high-quality
material, scientific design, strict craftsmanship and advanced
test method, the characteristics of this series products are as
follows:
- Excellent dynamic thermal
stability, outstanding short-circuit resistance, high lighting
impulse resistance, high reliability.
- With excellent overload
capacity, it can long-term operate under 110% load.
- Low lose, energy
conservation, run economically and maintenance free.
- Contour artistic, compact
size, low installation and maintenance costs.
- Performance and parameter
conform to or excel the standards of IEC.
- Fully Hermetically oil
tank, effectively preventing air from eroding oil and
prolonging the service life of the
transformer
Oil Immersed Distribution Power
Transformer
Ambient
conditions for Conventional transformers
using:
- Ambient temperature: Maximum
+40ºC
Minimum -25ºC
- Relative humidity: At
25ºC, not
higher than 95% for daily average humidity and not higher
than 90% for monthly average ambient
temperature.
- Altitude: less than 1000
meters.
- Seismic level: less than 3m/s2 at
horizontal direction and less than 1.5m/s2 at vertical
direction.
- Installation environment: No
obvious and heavy pollution, no explosive and corrosive gas
and dust, with good air ventilation and no severe vibration
and shock.
(Note:
if the application environment is different from the above
standard service conditions, please contact us for customized
designs.)
Advantage:
- Low loss, low noise, low partial
discharge, high reliability
- Powerful anti-short circuit capacity, high anti-lightning
impulse capacity
- HV coil is Vacuum casted with epoxy resin with pressure,
capabilities for better the cast without pressure.
- Simulating analys is being used in the core model, the
resonance can be avoided and the noise is reduced.
- Simulation calculation and analysis of lightning impulse wave
are applied to HV Coils; anti-lightning impulse capability is
improved.
Process
Technology:
Core:
- Our transformer's core is made of
high quality cold rolled grain oriented silicon steel sheet
with high magnetic permeability. It is using full
45° slope
lamination, so that the noload loss and the no-load current
are reduced efficiently.
LV
Winding:
- LV windings are adopting superior
foil conductors or made of 100% copper wire, thus to obtain
better amperturn balance and reduce more transverse magnetic
flux leakage. Then to greatly improves transformer's
anti-short circuit capability.
- Excellent design of oil passage
structure, greatly increasing the coils' heat dispersion
effect. It helps to decrease temperature rise of the LV
winding and improve transformers' overload
capability.
HV Winding
- HV windings are made of superior
copperconductor wires. Adopting fiberglass to reinforced
insulation.
- HV windings are adopted optimized
structure to improve transformer's distribution of electric
field.
- We use our existing technology
calculate and analysis Lightning wave process simulation.
Then substantially improving product's antilighting
capability.
Insulation
construction:
- Aclass level Insulation
construction. The high-voltage coil and low-voltage coil are
placed with the same center. Between the coils, use the thin
paper cylinder with little oil clearance
construction.
Tank:
- The tank is jointed with highquality
steel. The surface is eliminated rust phosphate coating and
painted with the type of FVC anticorrosive paint. It has
ability to prevent the corrosion from oil and chemical
matter. It can be broadly applied to outdoors with bad
environment for its contour artistic, easily installation and
maintenance free.
Components:
- All the power transformers equipped
with highvoltage bushing, low-voltage bushing, oil-relesase
valve earthling boilt, lifting board, name plate, pressure
vale and so on. The transformers which are over 800kVA are
equipped with signal thermometer and gas relay.
Certificates:
We have
established a sound quality management system, and have passed
the certification of ISO9001:2015 quality management system,
ISO14001:2015 environmental management system, and
ISO45001:2018 occupational health and safety management
system.
In order to
ensure product quality and in order to meet the development and
supply of our dry-type transformers in overseas international
markets, we all participate in type and special tests of
internationally recognized independent testing laboratories,
and obtain relevant reports.
Packing and
Delivery:
Company
Profile:
Pearl
Electric Co.,Ltd.(Hereinafter referred to as Pearl
Electric) located in Panyu District, Guangzhou City, which is
an enterprise mainly engaged in the R&D and manufacture of
power transmission and transform.
Pearl
Electric is the
former state-owned Panyu Electrical Motor Factory established
in 1958. To facilitate Company's development, the Company
was formally renamed as Pearl Electric Co., Ltd. in January,
2010. Pearl Electric occupies a factory area of 10.5 hectares,
with more than 7.2 hectares of modern factory building. Pearl
Electric has more than 600 employees and more than 600 sets of
specialized manufacturing equipment.
Pearl
Electric is engaged
in the research and development, production and operation of
dry-type transformers of 35kV and below, combined
transformers, prefabricated substations, reactors, oil-immersed
power transformers of 220kV and below , transmission and
distribution and Control equipment, etc. The annual output of
transformers exceed 20 million kVA, and the pad-mounted
products exceed 4000 sets.
Our company is committed to
providing customers with safe, efficient and intelligent power
transmission solutions, and has become a leading enterprise in
the domestic nuclear power dry-type transformer and new energy
box-type substation industry and a leading enterprise in the
environmental protection and energy-saving transformer
industry.
(If you want to know more about us, please feel free to check
our
website
https://pearl-electric.en..com/company-Pearl-Electric-Co-Ltd-.html
Partners:
FAQ:
Q: Are
you a Manufacturer, factory or Trading company ?
A: Yes, We are engaging in the research and development,
production and operation of transformer for over 60 years.
Q: What's your warranty terms?
A: We offer 12 months warranty time.
Q: Production Time?
A: 30 to 45 days or depending on order requirements.
Q: What's your payment terms?
A: T/T , L/C or negotiation.
Q: How do you conduct quality control in your
factory?
A: We implement 100% QC inspection to ensure every product is
qualified. We have over 10 times QC inspections during the
manufacturing process from raw material to the final
products.
Q: Do you have the products in stock?
A: Normally no. All our products produce depending to your
order quantity.
Q: How can I trust you ?
A: Pearl Electric is the
former state-owned Panyu Electrical Motor Factory established
in 1958, Pearl Electric occupies a factory area of 10.5
hectares, with more than 7.2 hectares of modern factory
building. Pearl Electric has more than 600 employees and more
than 600 sets of specialized manufacturing equipment. We have
many patent certificates, CE certificate, KEMA certificate,
ISO9001 certificate. Our products are widely used all around
the world. We believe that we can provide you products of good
quality with competitive price. We are the audited diamond
supplier of .
Q: What should provide to make
custom transformer ?
A: Technical drawing and technical specification document are
the best, or you can tell us some details technical
specification date as below "Quotation and Ordering Required
Information".
Q: Could I have your catalog and price list
for trial order in MOQ quantity?
A: All of our products are showing on or official website, you
are always welcome to ask us to get more information
directly.
Quotation and Ordering Required
Information:
Transformer
Type:
Rated Capacity: kVA
Phase: ( )Three Phase ( )Single
Phase
Frequency: ( )50Hz ( )60Hz
Rated Voltage (HV/LV): kV /
kV
Tapping Range: ± x
%
Insulation Level: LI AC / LI
AC
Vector Group: ( )Dyn11 ( )Yyn0 (
)Other
Short-circuit impedance: Uk=
%
Service conditions: Altitude:
m
Ambient temperature: ºC
Cooling Method: ( )ONAN (
)ONAF
Oil labeling:
Quantities ordered and time of
delivery:
Other requires:
(If
you have, It will be better send us technical
specification/date documents.)
------------------------------------------------------------------------------------------------------------------------------------------------
Pearl Electric
Co.,Ltd.
Add: No. 118 Donghuan Road, Donghuan Street, Panyu Distric,
Guangzhou City, Guangdong Province, China. ZIP:
511400
Web:pearl-electric.en..com
LV
Winding:
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