High-Efficiency Transformer with Copper Material for Optimal Performance

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting
• Phase: Three
• Model NO.: S11
• Core: Core-type Transformer
• Cooling Method: Dry-type Transformer
• Winding Type: Separated Winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC
• Usage: Single-phase Transformer, Rectifier Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: OD
• OEM: Avaliable
• Transport Package: Export Wooden Case Packing
• Specification: 2400*800*1900
• Trademark: GANGKONG
• Origin: China
• HS Code: 8504210000
• Production Capacity: 35000pieces/Years

Product Description

DRY TYPE TRANSFORMER: Experience unparalleled efficiency and superior reliability with our advanced dry-type transformer, designed to meet your energy demands with exceptional performance.

SPECIFICATION: Explore the meticulously crafted specifications of our premium product, ensuring high performance, durability, and optimal functionality tailored to meet your specific needs.

1. Product Description

Our SCB series epoxy resin dry type transformers are engineered for supreme safety, robustness, energy efficiency, and effortless upkeep. From every angle—be it economic, safety, or... environmental adaptability—this series of transformers stands out for its versatility, catering to a broad spectrum of applications.
Featuring a cutting-edge design, rigorous manufacturing process, and comprehensive testing, the HV winding is expertly crafted from 99.9% pure oxygen-free copper conductor, epoxy network cloth, and resin. The LV winding boasts an equally pure 99.9% oxygen-free copper foil. The iron core consists of premium-grade, high permeability cold-rolled silicon steel sheets bonded using a special method. Consequently, these transformers offer exceptional mechanical and electrical strength, coupled with outstanding thermal dissipation performance. Expect minimal local discharge... alongside superior reliability and a prolonged operational lifespan. They resist moisture uptake, are flame retardant, explosion-proof, environmentally friendly with zero pollution, reduced energy loss, lightweight with automatic temperature control, and designed to maximize space and minimize maintenance costs. Perfectly tailored to dive deep into the load center...making them ideal for urban infrastructure, skyscrapers, commercial hubs, residential communities, entertainment and sports venues, hospitals, tourist attractions, airports, ports, railway stations, subways, highway tunnels, and civil... defense facilities. They also cater to petrochemical enterprises, electrical companies, the food industry, sewage treatment plants, offshore oil platforms, mining operations, and numerous other demanding environments.




2. The Environmental and Operational Conditions
2.1 The installation site should not exceed an elevation of 1000m, with the ambient temperature...not surpassing 40°C (provision for special design is available if these parameters are exceeded).
2.2 Operating conditions include a maximum relative humidity of 100%, with temperature ranges from +40ºC to -25ºC (the latter necessitating the use of an on-load switch and temperature controller).
2.3 Primarily indoor-use, these products require a clean installation site, devoid of electric dust and corrosive gases, ensuring ample ventilation. For locations such as basements or areas with inadequate ventilation, forced ventilation solutions are crucial, demanding approximately 3-4m³/min... ventilation per 1kw loss (inclusive of no-load and load losses).
2.4 Upon installation, a clearance of around 800mm from walls and other... barriersis advisable, with a 300mm gap between adjacent transformers. These clearances can be modified to accommodate limited distribution box space.
2.5 Typically, transformers can be directly set at the operational site, ready for activation post-installation and inspection. In instances requiring shock-proof and other specific conditions, bolting the foundation and securing the transformer with... bolts and nuts is imperative.

3. Main Specifications and Technical Parameters
3.1 Rated Frequency:50Hz
3.2 Cooling Method: AN or customized as per user specifications.
3.3 Enclosure Protection Level: IP20, adjustable to meet user needs.
3.4 Connection Group Label: DynIl or as specified by the client.
3.5 Transformer Phase Sequence: Observing from the high-voltage side, sequence is ABC on HV side and abc on LV side.
3.6 Winding Insulation Class: F Class ensures optimal performance.
3.7 Insulation Level:
Our High-Efficiency Transformer with Copper Material for Optimal Performance showcases exceptional durability and resilience across various voltage levels. For the 10kV model, it boasts a remarkable power frequency withstand voltage of 35kV and an impact withstand voltage of 75kV. The 20kV variant takes it up a notch with a power frequency withstand voltage of 55kV and an impressive impact withstand voltage of 125kV. Meanwhile, the 35kV model sets a high standard with a power frequency withstand voltage of 70kV and a formidable impact withstand voltage of 170kV.
3.8 Temperature Rise Limit: Ensuring the utmost efficiency and safety in operation,
our transformers are designed with an insulation system that can withstand a temperature of up to 155°C, with a maximum allowable temperature rise of 100K, providing reliability even in the most demanding conditions.









4.

Product Parameters

SCB
Voltage class kv
Capacity KVA
Performance level code
The low-voltage coil is precisely crafted with copper foil, enhancing durability with epoxy resin impregnation.
three-phase


5. Product System Description
5.1 Temperature Display and Temperature Control System
Designed for optimal user convenience, this product offers an advanced temperature display and control system that functions to: (1) Send real-time overload alarm signals, effortlessly showcase current temperature readings.
(2) Automatically initiate fan operations, cease power supply, and disconnect the transformer if coil temperatures exceed the predefined threshold, ensuring safety and efficiency.
5.2 Cooling System
The cooling method is air natural cooling (AN), guaranteeing 100% output capacity; with forced air circulation cooling (AF), enjoy long-term overload capacity of 25% and short-term overload of 50%.
5.3 Protection Level
The standard protection level is IP00, meaning the transformer is designed for indoor use without an external shell. If the user requires it, an external shell can be added; It can be equipped with a shell,if desired, achieving IP20 or IP23 protection levels. When opting for a higher protection level, consider possible reductions in transformer capacity.
Note: The IP20 enclosure provides safety by preventing objects larger than 12mm from entry. IP23 additionally safeguards from water dripping at a 60° angle, ensuring enhanced protection.


6. Product Packaging and Transportation
6.1 Products are categorized into open type (without protective cover) and protected type (with protective shell), ensuring versatility across railway, waterway, and highway transportation. When needed, components can be disassembled and transported separately (e.g., on-load tap changer, temperature controller, air cooling device, protective cover), or securely packaged for comprehensive transport. Utilize cranes, winches, or suitable machinery for safe lifting and unloading.
6.2 During transit, products must be safeguarded with waterproof coverings to prevent rain damage.
6.3 When lifting boxed products, secure ropes to bottom corner sleepers. Lift products 100mm-150mm off the ground with a specialized device, ensuring no abnormalities before proceeding.
6.4 Maintain transportation line gradients below 15° to evenly distribute load, ensuring the product's center of gravity aligns with the vehicle's vertical center line during loading. Securely fasten the product in line with the transport direction to avoid displacement or tipping.
6.5 For vehicles without cranes, adhere to safety technical requirements and verify lifting capacity matches the product's transportation weight.
6.6 For seamless product transport, the user requires that the product is equipped with a trolley. During transit, the rollers at the base are typically removed to ensure stability, and are reset at the destination prior to installation. For trolleys, the roller axle at both frame ends can be adjusted 90° to facilitate horizontal or vertical movement of the product.
6.7 Once the product reaches its destination, it is essential to minimize parking time in the transportation state, especially if outdoors. Prior to installation, it should be stored in a dry, ventilated, and covered area. Protective measures must be employed to safeguard the product from mechanical damage and contamination.


7. Inspection and Acceptance
7.1 Upon receiving the product, the user should promptly open the shell to conduct a thorough inspection and acceptance process. Verify the completeness of items listed in the packing list. Check for any transportation-induced damage to the transformer, any displacement or damage to product parts, looseness of fasteners, damage to insulation, or dirt on the coil surface.
7.2 Validate that the data on the product nameplate aligns perfectly with the user's specified product specifications, including capacity, voltage level, connection group label, and short-circuit impedance.
7.3 Ensure all delivery technical documents are intact and complete.
7.4 If immediate operation is not feasible post-unpacking, repack the product and store it securely indoors to prevent potential damage or theft.
7.5 For the acceptance of the transformer, it is crucial to sign the corresponding handover document with the transportation department. This document should reflect any issues identified during the inspection process.

8. Appearance Inspection Before Installation
8.1 Once the packing case is opened, remove any protective devices (if present) and examine the exterior thoroughly. Pay special attention to the mechanical integrity of the coil and core, the compression degree, and the tightness of the bolts at the connections.
8.2 Post-inspection, ensure that all fasteners, as well as coil and iron core pressing components, are retightened in sequence, ensuring no loosening is observed.
8.3 Follow the factory's technical guidelines and relevant complete assembly instructions when disassembling and reinstalling the transformer body.
8.4 Cleanse the product meticulously with dry compressed air or clean rags to eliminate any dust and dirt.
8.5 Should the storage period be extended, leading to water beads or severe condensation on the transformer surface, a drying procedure must be executed until the coil insulation resistance meets the required standards.

9. Inspection and Test Before Operation
9.1 Measure the DC resistance of both the high and low voltage windings, ensuring consistency with the data provided in the factory test certificate.
9.2 Inspect the iron core grounding (usually located at the ends of the lower or upper iron yoke) to confirm that grounding is secure, with no unwanted body contact or multiple grounding present.
9.3 Test the insulation resistance
(Voltage level): 10kv 20kv 35kv
HV coil to LV coil ≥500 MΩ ≥ 800 MΩ ≥ 1000 MΩ
HV coil to Ground ≥500 MΩ ≥800 MΩ ≥1000 MΩ
LV to Ground ≥50MΩ ≥50MΩ ≥50MΩ
Core to Ground ≥5MΩ ≥5MΩ ≥5MΩ
9.4 When conducting external construction frequency voltage resistance tests, ensure to pay meticulous attention to remove the temperature control probe wire from the coil to avert damage to the sensitive components of the thermostat.
9.5 Verify the integrity and functionality of the protection system to ensure optimal performance and safety.
9.6 Position the transformer at least 800mm from walls and other heat-impeding objects. Once installed, secure the ground bolt to the common grounding loop for reliable and safe grounding.

10, Network operation
10.1 Ensure that the attached protection and monitoring systems are properly grounded and meet all standards before the transformer runs. Initiate no-load operation and perform three test closings to inspect and adjust the protection system as necessary.
10.2 Upon product delivery, the voltage regulation tap on the HV side should be set to the rated position. For operational voltage adjustments, follow the voltage indicated on the product's nameplate. Ensure the transformer is powered off when making any alterations.
10.3 This transformer employs the BWDK series temperature controller. The temperature sensor is located at the upper section of the low-voltage coil, providing automatic detection and display of the three-phase coil's working temperature. The thermostat will automatically manage fans, issue alarms, and initiate trips according to its pre-set temperature limits, which can be adjusted by users consulting the thermostat manual.

11. Maintenance
Periodically, after a defined operation span, interrupt the transformer's operation for essential checks and maintenance.
11.1 Inspect the coil, iron core, wire sealing, tap connections, and fasteners for any signs of damage, deformation, looseness, discoloration, overheating, or corrosion. Should any irregularities be found, further investigation and corrective measures must be undertaken.
11.2 Thoroughly clean the transformer by dusting. Wipe all accessible areas with a dry cloth, avoiding volatile cleaners. For sections within the iron core coil that are challenging to reach, use compressed air to achieve cleanliness.
11.3 For transformers equipped with fans, ensure that dust and debris are removed from the fan components. Take care to prevent fan blade deformation, and inspect the fan bearing grease, replenishing or replacing as necessary.
11.4 Following inspection and maintenance, conduct a meticulous check to ensure no metal or non-metal foreign objects have been inadvertently left within the coil, iron core, or insulation components before reactivating the transformer.


12. Security matters
12.1 Always ensure that the power supply to the temperature controller and fan is routed through the designated switch panel, rather than being directly linked to the transformer. This meticulous setup ensures reliability and safety. 12.2 Prior to initiating operations, it is imperative to conduct a thorough inspection of the grounding system within the transformer room, emphasizing its utmost importance for seamless functionality.
12.3 For maximum safety in electricity use, it is crucial that the door of the transformer shell remains securely closed at all times, creating a safe environment for both equipment and personnel.
12.4 Implement strategic measures within the transformer room to prevent small animals from entering. This foresight is essential for averting potential accidents and maintaining the integrity of electrical operations.
12.5 Personnel entering the transformer room must don insulated footwear as a priority, maintain a safe distance from live electrical parts, and refrain from any direct contact with the transformer, ensuring top-tier safety practices.
12.6 In the event of an unexpected surge in transformer noise levels, it is crucial to immediately monitor the transformer's load and the power grid voltage. Intensify observations concerning temperature fluctuations and promptly engage relevant professionals for expert advice.
12.7 Schedule a comprehensive transformer inspection every 3-5 years. During this period, consider conducting preventive tests to preemptively address any potential issues, ensuring optimal performance and longevity.
12.8 The installation, testing, operation, and maintenance of transformers are specialized activities that must be executed by certified professionals, ensuring compliance with high standards of safety and efficiency.

Certifications

FAQ

Are you the manufacturer or trader?

GANG KONG is a leading & professional manufacturer located in Zhejiangprovince of China.

What is your main markets?

Our main market is in home & a half in South-East Asia, Middle East,West-AfricaEast-European countries & Some South America..etc

What is your delivery & after-sales serive?

The delivery is according to order gty, normally for containers order we need 1month. Per each month 20 containers (20'ft or 40'ft)are no problem for us . Wecan answer user's question and solve their problem in 24 hrs per each day andgive full technical support in time to all of our products.

Do you accept OEM and ODM?

Yes. Our R & D team owns latest technology ,can develop & produce products ascustomers' drawing & under their brand

What is your payment terms?

a. 30% T/T in advance as deposit ,balanced against the shipping documents

b. irrevocable L/C at sight for order which amount is over 100 thousand USD

C. for old business partner,we can negociate together for other special terms

If i want to visit you ,how to do ?

Our company is located in Yueqing city of Zhejiang province China,which is about40 minutes by car to Wenzhou air port & 30 minutes from Yueqing train station.About 1 hrs by air from Shanghai international airport and 1 hrs from Ningbo bytrain. lf you need invitation letter before come to China,we can give it to you.