Energy-Saving Transformer with Copper Material for Efficient Power Use

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting
• Phase: Three
• Model NO.: S11
• 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

SPECIFICATION

1. Product Description

Introducing the SCB series of epoxy resin dry type transformers, meticulously crafted for unrivaled safety, dependability, energy efficiency, and effortless maintenance. This innovative series perfectly balances economic viability, security, and versatile environmental compatibility, making it the ideal choice for a wide array of applications.
Engineered with cutting-edge design, rigorous processes, and flawless testing, these transformers use HV windings composed of 99.9% oxygen-free copper conductors and epoxy network cloth infused with resin. The LV windings are constructed from 99.9% oxygen-free copper foil, while the iron core features top-grade, high-permeability cold-rolled silicon steel sheets and a unique binding method. As a result, these transformers boast unparalleled mechanical and electrical strength, exceptional heat dissipation, minimal local discharge, and superior reliability, ensuring a prolonged operational lifespan. With non-moisture absorbent properties, these transformers are flame-retardant, explosion-proof, eco-friendly, feature low energy loss, lightweight construction, automatic temperature regulation, and space-saving installation, reducing both maintenance costs and energy consumption. Their adaptability allows them to integrate seamlessly into the heart of the load center. They are well-suited for urban infrastructure, skyscrapers, commercial hubs, residential communities, entertainment complexes, hospitals, tourist attractions, airports, seaports, railway stations, subway systems, highway tunnels, civil defense installations, petrochemical companies, power utilities, the food sector, wastewater treatment, offshore oil rigs, mining operations, and more.




2. Usage of Environmental and Working Conditions
2.1 The installation site's elevation should not exceed 1000m, and the ambient temperature must remain within 40°C (special designs are available for exceeding requirements).Exceptions above 40°C are managed by specialized designs.
2.2 Operating within environments where relative humidity reaches 100%, this transformer performs optimally between +40ºC and -25ºC (considering on-load switch and temperature controller specifications).
2.3 Primarily designed for indoor settings, the installation area should be devoid of electrical dust and corrosive gases, and should ensure ample ventilation. In basements or poorly ventilated locations, consider implementing forced ventilation solutions. These transformers necessitate approximately 3-4m³/min ventilation per 1kw loss (including no-load and load losses).
2.4 When installing the transformers, maintain a standard distance of 800mm from walls or other obstacles, with a 300mm gap between adjacent units. Adjustments can be made when space constraints exist, such as in distribution boxes and other limited areas.
2.5 Typically, transformers can be directly placed at the site of use, ready for immediate operation post-installation and inspection. In situations requiring shock-resistant measures, secure the foundation with bolts, anchoring the transformer with bolts and nuts for enhanced stability.

3. Key Specifications and Technical Parameters
3.1 Rated frequency: 50Hz
3.2 Cooling method: Naturally Air-Cooled (AN) or customized to user requirements.
3.3 Enclosure protection rating: IP20 or tailored to user specifications.
3.4 Connection Group label: DynIl or user-defined configurations.
3.5 Transformer phase sequence: Viewed from the high voltage side, the sequence is ABC for high voltage, and abc for low voltage.
3.6 Winding insulation class: Adheres to F class standards.
3.7 Insulation Level
Our cutting-edge Energy-Saving Transformer boasts remarkable power frequency withstand voltages across its range. At 10kV, it endures up to 35kV, triumphing over impact voltages of 75kV. The 20kV variant excels with a power frequency withstand voltage of 55kV and an impact voltage resistance of an impressive 125kV. Meanwhile, the 35kV model stands as a beacon of resilience, withstanding power frequencies of 70kV and defying impact voltages up to a staggering 170kV.
3.8 Temperature Rise Limit: Ensuring optimal performance and longevity, our transformers are engineered with a precise temperature rise limit to maintain efficiency and reliability.
Insulation System Temperature (°C): 155. Maximum Temperature Rise (K): 100. The sophisticated insulation system withstands temperatures up to 155°C, while the maximum temperature rise is expertly capped at 100K, safeguarding the transformer’s durability and enhancing its energy-saving capabilities.









4.

Product Parameters

SC - Symbol of Quality and EfficiencyB - Benchmarking Brilliance
Voltage class kv - Delivering Optimal Power Levels
Capacity KVA - Empowering with Unmatched Capability
Performance level code - Ensuring Superior Standards
The low-voltage coil is crafted with copper foil and encapsulated in epoxy resin, symbolizing precision and reliability.
Embodying Efficiency: three-phase design


5. Comprehensive Product System Description
5.1 Innovative Temperature Display and Control System
Tailored to user requirements, this product can be outfitted with a sophisticated temperature display and control system, designed to: (1) issue an overload alarm and automatically present real-time temperature data.
(2) Should the coil's internal temperature surpass the pre-set limits on the signal thermometer, the system can activate the fan, cease power supply, and systematically shut down the transformer.
5.2 Advanced Cooling System
The cooling method includes air natural cooling (AN),ensuring the output capacity is robust and sustained at 100%;while forced air circulation cooling (AF) allows for long-term overload capability up to 25% and short-term overload surges of 50%.
5.3 Protection Level - Uncompromising Safety Standards
The standard protection level for this product is IPO0. The transformer is designed without a shell, thus requiring indoor application; Itcan be optionally equipped with a protective shell,ifrequested by the user, reaching IP20 or IP23 standards (consideration for transformer capacity reduction operation is advised with higher protection levels).
Note: The IP20 housing effectively blocks solid objects over 12mm, serving as a protective shield. Furthermore, an IP23 shell extends safety by averting water droplet ingress at angles up to 60°.


6. Product Packaging and Transportation - Ensuring Safe and Secure Delivery
6.1 Products are categorized into two types: open type (without protective cover) or protected type (with protective shell)), suitable for railway, waterway, and highway transportation. If necessary, elements can be disassembled for transport, such as on-load tap changers, temperature controllers, air cooling devices, and protective covers, or shipped in entirety using packing boxes. Handling is facilitated by cranes, winches, or other appropriate machinery.
6.2 During transportation, the product must be shielded with waterproof cloth to safeguard against rain exposure.
6.3 When lifting products encased in packing boxes, ropes should be secured to the sleepers at the bottom four corners. These packaged products can be elevated 100mm-150mm from the ground using a specialized lifting device, ensuring stability before proceeding with the lift.
6.4 Transportation should be managed to avoid slopes exceeding 15°, ensuring the vehicle evenly distributes load. The product's center of gravity must align with the vertical centerline of the vehicle during loading. To prevent displacement or toppling during transit, the product's long axis should match the direction of travel, and it should be securely fastened to the transport vehicle.
6.5 Ensure utmost safety by adhering to technical requirements when loading and unloading vehicles without cranes. It's crucial to verify that the lifting capacity aligns with the product's transportation weight, guaranteeing a secure handling process.
6.6 For transportation, it is recommended to remove the rollers from the bottom of the product to maintain stability. Upon reaching the installation destination, these can be reset. If handling a product with a trolley, adjust the roller axle at both ends to a 90° orientation to facilitate either horizontal or vertical movement.
6.7 Post-shipment, minimize the time the product remains parked in its transportation state, especially outdoors. Prior to installation, store it in a covered, dry, and well-ventilated area. Additionally, implement protective measures to shield the product from mechanical damage and contamination.


7. Inspection and Acceptance
7.1 Upon receipt, promptly open the shell for a meticulous inspection and acceptance process. Verify the completeness of items against the packing list, assess any transportation-induced damage to the transformer, inspect for displaced or damaged components, check for loose fasteners, ensure insulation integrity, and confirm the cleanliness of the coil surface.
7.2 Ensure that the product nameplate data matches the user's specified product details, including specifications, capacity, voltage level, connection group label, and short-circuit impedance.
7.3 Confirm the completeness of all delivery technical documents.
7.4 If the product won't be used immediately after unpacking, repackage and store it safely indoors to prevent potential damage and theft.
7.5 During transformer acceptance, ensure a signed handover document with the transportation department, detailing any issues identified during inspection.

8. Appearance Inspection Before Installation
8.1 Once the packing case is opened, remove any protective devices and carefully inspect the external condition. Focus on the mechanical integrity of the coil and core, ensuring compression and bolt tightness. bolts outside the connection.
8.2 Post-inspection, systematically tighten all fasteners, coil, and iron core pressing parts to eliminate any loosening.
8.3 Follow factory technical conditions and relevant instructions for disassembling and reinstalling the transformer body as part of the complete assembly.
8.4 Use dry compressed air or clean rags to meticulously clean dust and dirt from the product.
8.5 If stored for an extended period and condensation or water beads form on the transformer surface, perform a drying process until coil insulation resistance meets the required standards.

9. Inspection and Test Before Operation
9.1 Measure the DC resistance of both high and low voltage windings, ensuring consistency with factory test certificate data.
9.2 Verify iron core grounding reliability by checking the ground lug, typically located at the lower or upper iron yoke, to ensure no other body overlaps or multiple grounding occurs. other body lap, and ensure there is no multiple grounding.
9.3 Conduct insulation resistance tests
(Voltage Levels) 10kv 20kv 35kv
from 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 performing external construction frequency voltage resistance, it is crucial to pay close attention to remove the temperature control probe wire from the coil, ensuring the prevention of internal component breakdown within the thermostat.
9.5 Confirm that the protection system is functioning as expected.
9.6 Ensure the transformer is positioned at a minimum distance of 800mm from walls or any obstructions affecting heat dissipation. Post-installation, secure the ground bolt to the main grounding loop for steadfast grounding.

10, Network operation
10.1 Once the protection device and monitoring system are grounded and meet standards, initiate the transformer's operation without load. Follow up with three shock closings to diligently inspect and adjust the protection system.
10.2 Upon delivery, ensure the HV side's voltage regulation tap is set to the designated rated position. Should voltage adjustment be necessary during operation, adhere to the tapping voltage indicated on the product nameplate (in instances lacking excitation voltage regulation), making certain that these adjustments occur only after transformer power is disengaged. HV side is connected according to the rated position. The voltage adjustment requires careful handling during operation, with the necessary tapping connection executed as per the tapping voltage outlined on the product's nameplate (in cases devoid of excitation voltage regulation). All voltage activities must be performed with the transformer power supply disengaged.
10.3 The transformer features the advanced BWDK series temperature controller. This device strategically positions the temperature measuring element at the upper end of the low-voltage coil, proficiently detecting and displaying each phase's working temperature. Should the coil temperature surpass set thresholds, the thermometer can autonomously activate the fan, halt it, trigger an alert, or initiate a trip. Users can tailor temperature settings following the thermostat manual for optimal performance.

11. Maintenance
Subsequent to a period of operation, the dry transformer necessitates disconnection for essential checks and maintenance to uphold its excellent performance.
11.1 Conduct a meticulous inspection of the coil, iron core, wire sealing, tap-connecting terminals, and fasteners across all sections. Look for any signs of damage, deformation, loosening, discoloration, overheating, or corrosion. Address any irregularities promptly, assessing for operational damage and implementing necessary corrective measures.
11.2 Thoroughly dust the transformer. Surfaces accessible by hand should be cleaned with a dry cloth, refraining from volatile cleaners. More challenging-to-access areas within the iron core coil should be meticulously blown clean using compressed air.
11.3 For transformers featuring fans, it is imperative to remove dust and soil accumulation from the fan. Exercise caution to prevent fan blade deformation. Additionally, inspect the fan bearing's grease, replenishing or replacing it if deemed necessary.
11.4 After the meticulous inspection and comprehensive maintenance have been successfully accomplished, it is of utmost importance to thoroughly inspect for any metallic or non-metallic foreign objects that may have inadvertently fallen and remained within the coil, iron core, or insulation components before reactivating the transformer.


12. Security Precautions
12.1 The power supply to the temperature controller (and fan) should be sourced through the switch panel, ensuring it is never directly connected to the transformer. 12.2 Prior to initiating the transformer's operation, it is crucial to meticulously verify the grounding system of the transformer room.
12.3 The door of the transformer casing must be securely closed to guarantee safe and efficient electricity utilization.
12.4 Measures should be in place within the transformer room to deter small animals from entering, thereby preventing potential accidents.
12.5 Personnel accessing the transformer room must wear insulated footwear, maintain a safe distance from live components, and refrain from contacting the transformer directly to ensure utmost safety.
12.6 Should you observe a sudden increase in transformer noise, it is imperative to immediately assess the transformer's load and the power grid's voltage, diligently monitor its temperature fluctuations, and promptly consult with relevant personnel.
12.7 A comprehensive inspection of the transformer should be conducted every 3-5 years, with preventive tests being advisable during these intervals to ensure optimal performance.
12.8 Only qualified professionals should undertake the installation, testing, operation, and maintenance of transformers to ensure superior standards of safety and reliability.

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.