Three Phase Cast Resin Dry Type Isolation Transformer
Product Description
Transformer Description:
Dry type isolation transformer is a special type of transformer mainly used for separating circuits, matching transformers, or measuring circuits in power systems. It is generally used for machine maintenance and repair, playing a role in protection, lightning protection, and filtering. It is widely used in places such as subways, high-rise buildings, airports, stations, docks, industrial and mining enterprises, and tunnels for power transmission and distribution.
Transformer Features:
Pearl Electric design and produce high reliable and stable dry-type isolation transformer, suitable for various harsh environments in power systems, and has the following characteristics:
1- High isolation: Dry isolation transformers can effectively isolate circuits and protect equipment in the circuit from voltage and current interference.
2- High insulation level: Dry type isolation transformers use high-quality insulation materials, which have a high insulation level and can withstand high voltage and strong current.
3. Dust and moisture prevention: Dry isolation transformers do not require oil, so they can effectively prevent dust and moisture.
4- Without oil, they do not have the risk of oil immersed transformers being prone to fire hazards.
5- Maintenance free: As dry isolation transformers do not use insulation oil, routine maintenance and oil replacement operations are not required.
In addition, the various input and output voltages, connection groups, number and position of regulating taps (generally ± 5%), distribution of winding capacity, configuration of secondary single-phase windings, application of rectification circuits, and whether a casing is required for dry-type isolation transformers can be carefully designed and manufactured according to user requirements.
Our Advantages
Transformer Advantage
1. Low loss, low noise, low partial discharge.
2. Strong anti-short circuit capability and high anti-lightning impact level.
3. Excellent moisture resistance for operation at 100% relative humidity.
4. Strong overload capability for long-term operation at 150% loading.
Certifications
Transformer Test Report
For all transformers developed and supplied by Pearl Electric, Type tests and Specials Tests have been carried out in internationally-recognized independent test lab, and test reports have been obtain, including:
1. C2/E2/F1 test report for cast resin dry type transformer
2. Aging test report for cast resin dry type transformer
3. Aseismatic report for cast resin dry type transformer
4. Type and special test reports for class 1E dry type transformer for nuclear power station application
5. Type and special test reports for various traction/excitation trasnformers
6. . Type and special test reports for amorphous alloy core dry type transformer
7. Type and special test reports for three-phroof (salt-fog, midew, humdid-heat) performance
Detailed Photos
Transformer Chracteristics
Transformer Core
1. The core is made of high quality grain-oriented cold-rollled silicon steel of high magnetic conductivity, by using 45°five-step overlapping method to reduce the no-load loss and no-load current.
2. Simulation analysis method is applied for the core design, thus to precisely and effectively calculate the vibration frequency and scale.
3. Flexible connections are adopted between the core and coils, core and clamps. With these measures, transformer's noise level has been improved by 10-15dB over the conventional products.
Transformer Windings
LV windings
1. For LV windings above 400 kVA capacity, superior foil conductors are adopted for winding manufacturing, thus to obtain better amper-turn balance and less transverse magnetic flux leakage, and finally to greatly improves transformer's anti-short circuit capability.
2. By reasonably designing the oil passage within the winding, winding's heat dispersion effect is greatly increased. Thus the reasonable design has decreased temperature rise and improved products' overload capability.
HV windings
1. HV windings are manufactured with superior wire conductors, insulated reinforced with fiber glass.
2. The HV windings are cast under vacuum and high pressure conditions in Germany HUBERS vacuum Cast Machine, resulting the best resin penetration and very low partial discharge( partial discharge for 11kV product could be lower than 5Pc).
3. Optimized structure is adopted for HV windings to improve transformer's electric field. Lighting impulse simulation calculation was adopted for winding model design, thus to substantially improve product's anti-lighting capability.
PEARL ELECTRIC CO., LTD
Established in 1958, located in Guangzhou City, Pearl Electric Co., Ltd is one of the most prominent power transformer manufacturer in China which design, produce and supply power transformers in domestic and abroad with almost 660 employees, more than 260 sets of specialized manufacturing equipment and 90,000 square meters area .
PEARL ELETRIC DESIGNS, MANUFACTURES AND SUPPLIES:
| Staple Items |
Annual Production Capability |
| Oil-immersed transformer |
2.5 million kVA |
| Dry-type transformer |
2 million Kva |
| Amorphous dry-type transformer |
1 million |
| Amorphous oil-immersed transformer |
2.28 million kVA |
| Pad-mounted transformer for wind power plant |
500 sets |
| Pre-fabricated substation for wind power plant |
500 sets |
| 10kV pad-mounted transformer/pre-fabricated substation |
500 sets |
| Arc suppression reactor earthing assembly |
360 sets |
| Reactor |
1.20 million kVA |
PEARL'S RESEARCH & DESIGN TEAM
INDUSTRIAL USERS IN DOMESTIC AND ABROAD
FAQ:
1.Q: Are you manufacturer?
A: Yes, we are manufacturer. Our factory is in Guangzhou City, Guangdong Province.
2.Q: Can I get guarantee of products?
A: Yes, every product is 1 year quality warrantee under customer correct using the products.
3.Q: Do you have any Certificate?
A: Yes. Each of our unit has CE, 3C and KEMA certificate. If you need any other Certificate, we can help you to apply it.
4.Q: How can I pay you?
A: Pay by T/T and L/C is acceptable.
5.Q: What about the production?
A: In general, it take 4~6weeks and it depend on the different style.
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