-550x550.png "20KV Epoxy Resin Cast Dry-type Transformer Core Power Distribution Transformer")
-550x550.png "20KV Epoxy Resin Cast Dry-type Transformer Core Power Distribution Transformer")
-80x80.png "20KV Epoxy Resin Cast Dry-type Transformer Core Power Distribution Transformer")
-80x80.png "20KV Epoxy Resin Cast Dry-type Transformer Core Power Distribution Transformer")
1. General
1.1 Main Feature
Dry-type transformer mainly consists of core and windings, it doesn't immerse in insulating liquide. Our dry-type transformer designs according to lEC
standards and China national standards.
With no leakage of oil and gas, security, environmental protection, and low-noise performances.
1.2 Application
Mainly used for locations having special fire safety requirements suchas commercial buildings, high-rise buildings, airports, industrial andmining
enterprises, power plants, oil platforms, subways and tunnel.
Applicable for 50/60Hz system.
1.3 Working Condition
Max.ambient temperature: +40℃
Max.daily average ambient temperature :+30℃
Max.annual average ambient temperature:+20℃
Min.temperature:-5℃(indoor installation)
Min.temperature:-30℃(outdoor installation)
Altitude: ≤1000m
Relative humidity: ≤93%, no dews on the winding surface.
Customized products are available.
1.4 Standard
IEC 60076-11:2004; ANSl, etc.
2. Technical Feature
2.1 Transformer technology is based on model experiments, self-developed calculation software of leakage flux, short circuit mechanical strength, on
load losses etc, to realize overall optimization of electrical performance of transformer, therefore low-cost and high-performed solutions could be provided
to the customers.
2.2 The structure design is based on three-dimension finite element analysis software to do analysis on transformer iron core and clamping pieces, which
provides a guarantee to enhance mechanical strength, anti-short-circuit capacity and reduce noise.
Performance Feature
Safety, fireproofing, non-polluting, direct operation on the load center.
Strong mechanical strength, excellent insulation capacity, low partial discharge , strong radiation capability, high reliability and long life.
Low loss, low noise, energy-saving.
High heat dispersion and strong serviceability , forced air cooling can improve the operation of capacity.
High humidity-resistant, environmental protection.fire-retardant, explosion-proof, less maintenance compact design and light weight.
3.Structure Feature
3.1 lron Core
The iron core is made of high quality, cold-rolled, granule-oriented silicon-steel sheets and machined with completely automalic cutting line, superposed
with 45osix-level bias seams. Core column adopts special banding technique, the surface of iron core is painted with the special rustproof coating to
resist humidity and rust, which can effectively reduce the no-load losses, no load current and iron-core noise. Facilitated with six sets of cutting lines for
iron core such as, Soenen from Belgium.
3.2 Winding
F-class insulation HV winding: it is made of lacquered wire. With hardness ranges from 120 to 210 Mpa. The insulation material is a composite of silicon
micro-powder and epoxy resin, featuring high performances of good thermal shock resistance, fire resistance, no emission of hazardous gases, good
heat dispersion and low winding temperature rise.
H-class insulation Hv winding: it adopts NOMEX paper wrapped flat copper wire and continuous winding process. The winding made after dry treatment
by VPl vacuum pressure device, several times impregnated in special H class insulating paint, and baking features high mechanical strength, good heat dispersion.
LV winding: LV winding is mainly made of foils. lt adopts interior argon gas protection welding, with high precision and reliability as no external welding
joint. lt solves the winding turns imbalance , effectively improves thermal performance and enhance short circuit withstanding capability.
4.Component
4.1 Protection Enclosure
Protection enclosure can be made of general steel plate , stainless steel plate or aluminum alloy materials, For example, protection enclosure of
IP20 can prevent solid object which is 12mm from entering, and this type is suitable for indoor installation, Protecion enclosure of IP23 inherits
the characters of lP20 enclosure and can prevent water dropping at an angle within 60o to the vertical line from inflooding, as well which is adapted
to outdoor installation.
4.2 Temperature Control Device
Transformer temperature control protection device adopts double-sensor principle of PTC nonlinearity resistance and PT100 linearity resistance.
It has functions of LED temperature display, temperature setting. It can keep highest temperature data, automatically alarm and trip signal and start /
stop the fan either automatically or manually. Various special temperature devices can be equipped according to the demand of the customer.
4.3 Air Cooling System
Usually, the cooling system of transformer is natural air cooling(AN), then the transformer can continuously operate at rated power, Cooling system can
be provided according to customers' requirements. The fan is controlled automatically by the temperature controller to ensure the normal temperature
rise when the load exceeds the rated load.
Type Designation
9 Series 20kV Free Excitation Voltage Regulation Distribution Transformer
| Model | Voltage combination | Connection symbol |
No-load loss (W) |
Load loss under F class (W) (120℃) |
No-load current (%) |
Short circuit impedance (%) |
||
| HV (kV) |
HV tap range |
LV (kV) |
||||||
| SC9-50 | 20; 22; 24 | ±5 or ±2×2.5 | 0.4 | Dyn11 or Yyn0 | 380 | 1300 | 2.4 | 6 |
| SC9-100 | 600 | 2100 | 2.2 | |||||
| SC9-160 | 750 | 2600 | 1.8 | |||||
| SC(B)9-200 | 820 | 3100 | 1.8 | |||||
| SC(B)9-250 | 940 | 3600 | 1.6 | |||||
| SC(B)9-315 | 1080 | 4300 | 1.6 | |||||
| SC(B)9-400 | 1280 | 5100 | 1.4 | |||||
| SC(B)9-500 | 1500 | 6100 | 1.4 | |||||
| SC(B)9-630 | 1700 | 7200 | 1.2 | |||||
| SC(B)9-800 | 1950 | 8700 | 1.2 | |||||
| SC(B)9-1000 | 2300 | 10300 | 1.0 | |||||
| SC(B)9-1250 | 2650 | 12150 | 1.0 | |||||
| SC(B)9-1600 | 3100 | 14600 | 1.0 | |||||
| SC(B)9-2000 | 3600 | 17250 | 0.8 | |||||
| SC(B)9-2500 | 4300 | 20400 | 0.8 | 8 | ||||
| SC(B)9-2000 | 3600 | 18800 | 0.8 | |||||
| SC(B)9-2500 | 4300 | 22400 | 0.8 | |||||
10 Series 20kV Free Excitation Voltage Regulation Distribution Transformer
| Model | Voltage combination | Connection symbol |
No-load loss (W) |
Load loss under F class (W) (120℃) |
No-load current (%) |
Short circuit impedance (%) |
||
| HV (kV) |
HV tap range |
LV (kV) |
||||||
| SC10-50 | 20; 22; 24 | ±5 or ±2×2.5 | 0.4 | Dyn11 or Yyn0 | 345 | 1235 | 2.4 | 6 |
| SC10-100 | 540 | 1995 | 2.2 | |||||
| SC10-160 | 675 | 2470 | 1.8 | |||||
| SC(B)10-200 | 740 | 2945 | 1.8 | |||||
| SC(B)10-250 | 845 | 3420 | 1.6 | |||||
| SC(B)10-315 | 975 | 4085 | 1.6 | |||||
| SC(B)10-400 | 1155 | 4845 | 1.4 | |||||
| SC(B)10-500 | 1350 | 5795 | 1.4 | |||||
| SC(B)10-630 | 1530 | 6840 | 1.2 | |||||
| SC(B)10-800 | 1755 | 8265 | 1.2 | |||||
| SC(B)10-1000 | 2070 | 9785 | 1.0 | |||||
| SC(B)10-1250 | 2385 | 11545 | 1.0 | |||||
| SC(B)10-1600 | 2790 | 13870 | 1.0 | |||||
| SC(B)10-2000 | 3240 | 16390 | 0.8 | |||||
| SC(B)10-2500 | 3870 | 19380 | 0.8 | |||||
| SC(B)10-2000 | 3240 | 17860 | 0.8 | 8 | ||||
| SC(B)10-2500 | 3870 | 21280 | 0.8 | |||||
Quality Assurance Period (QAP) Explanation
1. The Quality Assurance Period (QAP) is an important aspect of our commitment to ensuring the quality and reliability of our products. We understand that customers rely on our goods to function properly and meet their expectations. To demonstrate our confidence in our offerings, we provide a warranty period during which we take responsibility for any quality issues that may arise.
2. The length of the warranty period varies depending on the type of product. Generally, for consumable components subject to wear and tear, such as abrasion parts, the warranty period is three months. For smaller components, the warranty period is typically extended to six months. As for major equipment and machinery, we offer a one-year warranty period.
3. We also recognize that each customer's requirements may differ, and we are open to negotiation regarding the warranty period. If the buyer requests a specific warranty duration that differs from our standard policy, we are willing to discuss and accommodate their needs accordingly.
4. During the warranty period, we take full responsibility for any quality-related issues that arise. If a product is found to be defective or malfunctions due to manufacturing or material faults, we are committed to providing a resolution. This includes either replacing the faulty component or conducting necessary repairs to restore the product to its intended functionality. Our aim is to minimize any inconvenience caused to our customers and ensure their satisfaction.
5. It is important to note that the warranty does not cover damages resulting from improper use, mishandling, or normal wear and tear. Additionally, if any modifications or repairs are carried out by unauthorized personnel during the warranty period, the warranty may become void.
6. At our company, customer satisfaction is our top priority. We strive to provide high-quality products that meet and exceed expectations. The Quality Assurance Period serves as a testament to our commitment to delivering reliable solutions and ensuring that our customers have peace of mind when choosing our products.
Transportation:
1. We offer various trade methods, including EXW, FOB, CIF, DDU, DDP, etc., allowing customers to choose the most suitable option based on their requirements.
2. We consider the proximity to the factory where the goods are located when selecting the appropriate port of departure.
Customers can provide the destination port where the consignee is located or choose a designated port for delivery.
3. Our transportation methods encompass a wide range of options, including waterway transportation, air transportation, and courier services such as DHL, FedEx, EMS, UPS, TNT, etc.
For waterway transportation, we work with reputable shipping companies such as APL, CMA, CNC, COSCO, EMC, EVERGREEN, HMM, KMTC, MCC, MSC, MSK, ONE, SITC, YML, etc.
Air transportation is available through airlines such as (Air China): CA; (China Southern Airlines): CZ; (China Eastern Airlines): MU; (Garuda Indonesia): GA; (Cathay Pacific Airways): CX; (Cathay Dragon): KA; (Korean Air): (Japan Airlines): JL; (Singapore Airlines): SQ; (Thai Airways International): TG, and more.
4. The transportation time will vary depending on the destination and the chosen transportation method. We will communicate and confirm the estimated time of arrival with the customer prior to shipping.
5. Shipping costs are influenced by factors such as transportation method, weight, size, and destination. We provide shipping cost estimation services to assist customers in budgeting.
6. Once the goods are shipped, we offer order tracking services to provide customers with detailed information about the whereabouts of their shipment. Additionally, based on the selected trade method, we can arrange cargo insurance to provide compensation in the event of loss or damage during transportation.
7. The specific transportation arrangements mentioned above will be coordinated by dedicated personnel, taking into account the actual situation and policies. We strive to tailor the optimal and most cost-effective shipping plan based on the information provided by the customer.
Please note that we are committed to ensuring the smooth transportation of goods and will work closely with customers to address any specific requirements or concerns they may have regarding transportation.
-250x250.png "10kV Free Excitation Voltage Regulation Distribution Transformer Epoxy Resin Cast Dry-type Transformer")
-250x250.png "10kV Free Excitation Voltage Regulation Distribution Transformer Epoxy Resin Cast Dry-type Transformer")
