33kV 11kV Three Phase Oil Immersed Type Electric Power Transformer

タイトルまたは説明

~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 **0% 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

~Ambient conditions for Conventional transformers using:
-  Ambient temperature: Maximum **0ºC
                   Minimum **5ºC
-  Relative humidity: At *5ºC, not higher than *5% for daily average humidity and not higher than *0% for monthly average ambient temperature.
-  Altitude: less than ***0 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 *5° 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 **0% 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 **0kVA are equipped with signal thermometer and gas relay.

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 ***8. To facilitate Company's development, the Company was formally renamed as Pearl Electric Co., Ltd. in January, ***0. Pearl Electric occupies a factory area of *0.5 hectares, with more than 7.2 hectares of modern factory building. Pearl Electric has more than **0 employees and more than **0 sets of specialized manufacturing equipment.

Pearl Electric is engaged in the research and development, production and operation of dry-type transformers of *5kV and below, combined transformers, prefabricated substations, reactors, oil-immersed power transformers of **0kV and below , transmission and distribution and Control equipment, etc. The annual output of transformers exceed *0 million kVA, and the pad-mounted products exceed ***0 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.