Versatile Transformer with Copper Material for Effective Power Distribution

• 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: Experience the pinnacle of electrical innovation with our Dry Type Transformer, expertly crafted to meet modern energy demands with unmatched efficiency and reliability.

SPECIFICATION: Delve into the comprehensive specifications of our cutting-edge Dry Type Transformer, designed for seamless power distribution and exceptional performance, ensuring optimal functionality in all environments.

1. Product Description

The series of SCB epoxy resin dry type transformer have the advantage of safety,reliability,energy saving and easy maintenance,From the conditions of economy,safety and applicable environment,this series of transformers has a wide range of application.
The product design is advanced,the process is strict,and the test is perfect.The HV winding is made of 99.9% oxygen-free copper conductor,epoxy network cloth and resin,the LV winding is made of 99.9% oxygen-free copper foil,the iron core is made of high quality and high permeability cold rolled silicon steel sheet and special binding method. Therefore, the product has high mechanical strength and electrical strength, and has very excellent heat dissipation performance, the product has small local discharge, high reliability, long operating life, non-moisture absorption, flame retardant, explosion proof, no pollution, small loss, light weight, automatic temperature control, saving installation space, saving maintenance costs, saving energy and other advantages, can go deep into the load center, It is suitable for urban construction, high-rise buildings, commercial centers, residential areas, entertainment and sports centers, hospitals, tourist buildings, airports, ports, railway stations, subways, highway tunnels, civil air defense facilities, petrochemical enterprises, electrical enterprises, food industry, sewage purification, offshore oil platforms, mines and other places.




2. The use of environmental and working conditions
2.1 The elevation of the installation site shall not exceed 1000m, and the ambient temperature shall not exceed 40 ° C (if this requirement is exceeded, special design can be carried out).
2.2 Operating environment, the relative humidity is 100%, the environment is +40ºC to -25ºC(-25C with on-load switch and temperature controller requirements).
2.3 This product is generally indoor, and the installation site should be clean with no electric dust, no corrosive gas, and have good ventilation conditions. If the installation is in the basement or other places with poor ventilation, the problem of forced ventilation should be considered. This product requires about 3-4m3/min ventilation per 1kw loss (no-load loss + load loss).
2.4 When the product is installed, it should generally be 800mm away from the wall and other obstacles, and there should be a distance of 300mm between adjacent transformers. The above distance can be adjusted when the distribution box and other installation space are limited.
2.5 Under normal circumstances, the transformer can be placed directly on the site of use, and can be put into operation after installation and inspection. For the case of shock-proof and other special requirements, the foundation of the transformer should be installed with bolts, and the transformer should be fixed by bolts and nuts.

3. Main specifications and technical parameters
3.1 Rated frequency :50Hz
3.2 Cooling method :AN or according to user requirements.
3.3 Shell protection level :IP20 or according to user requirements.
3.4 Connection Group label :DynIl or as required by the user.
3.5 Transformer phase sequence: Facing the high voltage side of the transformer from left to right, the high voltage side is ABC and the low voltage side is abc.
3.6 Winding insulation class :F class.
3.7 Insulation Level
For superior performance and reliability, our transformers offer impressive power frequency withstand voltage levels: the 10kv model boasts a withstand voltage of 35kv with an impact withstand capability of 75kv. The 20kv variant features a power frequency withstand voltage of 55kv and can handle impact voltages up to 125kv. For our 35kv option, experience a power frequency withstand voltage of 70kv with a remarkable impact withstand voltage reaching 170kv.
3.8 Temperature Rise Limit:
Our state-of-the-art insulation system ensures optimal performance with an operating temperature of 155°C, while maintaining a maximum temperature rise of just 100k, guaranteeing efficiency and safety.









4.

Product Parameters

SCB
Voltage class kv
Capacity KVA
Performance level code
The low-voltage coil boasts a copper foil wound epoxy resin pouring for robust performance.
three-phase


5. Product System Description
5.1 Temperature Display and Control System
Tailored to user needs, this product can feature a temperature display control system. The system is designed to: (1) Issue overload alarms and display real-time temperature.
(2) Initiate fan operations and disconnect power when coil temperature surpasses preset limits, ensuring transformer safety.
5.2 Cooling System
The cooling method employed is air natural cooling (AN), allowing full 100% output capacity.; With forced air circulation cooling (AF), enjoy long-term overload up to 25% and short-term overload up to 50%.
5.3 Protection Level
Typically, this product features an IPO0 protection level. Without a shell, it necessitates indoor use; However, if needed ,it can be equipped with a protective shell,if users require, ensuring IP20 or IP23 protection. Note: Higher transformer protection levels may necessitate capacity reduction.
Note: An IP20 housing prevents solid objects over 12mm, safeguarding live parts. IP23 enhances protection with angled water resistance up to 60°.


6. Product Packaging and Transportation
6.1 Products are available in open type (without protective cover) and protected type (with protective shell), suitable for railway, waterway, and highway transit. Components can be partially disassembled when necessary, such as on-load tap changers, temperature controllers, air cooling devices, and protective covers. These components might require separate packaging or complete packing box transportation. Utilize cranes, winches, or suitable machinery for lifting and unloading.
6.2 During transit, ensure the product is covered with waterproof material to safeguard against rain.
6.3 When lifting packed products, ropes should be secured to the sleepers at the bottom corners of the boxes. The product can be raised 100mm-150mm off the ground using specialized equipment for inspection before being fully lifted.
6.4 During transport, the incline should not exceed 15° to maintain load balance. The product's center of gravity must align with the vehicle's center line. Secure the product's orientation and firmly fasten it to prevent displacement or toppling.
6.5 When loading and unloading vehicles without the aid of cranes, it is imperative to adhere to stringent safety technical standards. Prior to proceeding, verify that the lifting capacity aligns perfectly with the product's specified transportation weight.
6.6 For user convenience, products are equipped with a car featuring a roller at the bottom. During transit, these rollers are typically removed to guarantee transportation stability and are then reassembled at the final installation site. For products accompanied by a trolley, the roller axles at both frame ends can be ingeniously rotated 90° to facilitate seamless horizontal or vertical movement.
6.7 Upon reaching the destination, reduce the duration the product remains in a transportation state, especially if exposed to the outdoors. Before installation, ensure it is stationed in a sheltered, dry, and well-ventilated environment. Concurrently, implement measures to robustly safeguard the product from potential mechanical harm and contamination.


7. Inspection and Acceptance
7.1 Upon receipt of the product, users must promptly unveil the shell to thoroughly inspect and accept the delivery. Confirm completeness against the packing list, assess for any transportation-induced damages or displacements, check all fasteners for tightness, inspect insulation integrity, and ensure the cleanliness of the coil surface.
7.2 Verify that the product nameplate data precisely matches the user's specified requirements, including product specifications, capacity, voltage level, connection group labeling, and short-circuit impedance.
7.3 Ensure all delivery technical documents are complete and present.
7.4 Should the product not be immediately operational post-unpacking, it is crucial to repackage and securely store it indoors to avert potential damage or theft.
7.5 During transformer acceptance, it is essential to sign the relevant handover document in collaboration with the transportation department. This document should accurately reflect any discrepancies unearthed during the inspection.

8. Appearance Inspection Before Installation
8.1 Post unpacking, the removal of any protective devices (if applicable) is necessary. Conduct a meticulous examination of the external condition, focusing on the mechanical integrity of the coil and core, the compression level, and the tightness of the surrounding bolts that ensure secure connection.
8.2 Post-inspection, systematically tighten all fasteners, coil, and iron core pressing parts in sequence, ensuring there is absolutely no loosening.
8.3 Follow the factory's technical specifications and related complete assembly instructions to dismantle and reinstall the transformer body appropriately.
8.4 Thoroughly cleanse the product of dust and dirt using dry compressed air or a clean rag.
8.5 In instances of prolonged storage, where condensation or water droplets are present on the transformer surface, initiate drying treatments until the coil insulation resistance meets standards.

9. Inspection and Test Before Operation
9.1 Accurately measure the DC resistance of both high and low voltage windings, ensuring consistency with the data in the factory's test certificate.
9.2 Assess the iron core grounding, typically found at the end of the lower or upper iron yoke, confirming its reliability, absence of any unintentional body lap, and the lack of multiple groundings.
9.3 Conduct an insulation resistance test
(Voltage Level) 10kv 20kv 35kv
between HV coil and LV coil to ensure it is ≥500 MΩ. With a remarkable insulation resistance of ≥ 800 MΩ, this component promises excellent electrical insulation for safe and reliable operations. Featuring an outstanding insulation resistance of ≥ 1000 MΩ, this element ensures superior safety standards in electrical applications.
HV coil to Ground: This critical connection is designed to maintain optimal performance by providing a robust path for electrical grounding. Exhibiting an insulation resistance of ≥500 MΩ, this component contributes to maintaining a secure and efficient electrical system. Designed with an insulation resistance of ≥800 MΩ, this element assures enhanced protection against electrical faults. With an impressive insulation resistance of ≥1000 MΩ, this component offers exceptional electrical safety and reliability.
LV to Ground: Ensures a stable and secure grounding connection, crucial for the effective performance of the system. Demonstrating an insulation resistance of ≥50MΩ, this component is integral in maintaining electrical system integrity. Featuring an insulation resistance of ≥50MΩ, this component plays a vital role in ensuring the durability and safety of electrical installations. With an insulation resistance of ≥50MΩ, this component is essential for reliable and stable electrical operations.
Core to: A vital connection ensuring the integrity and safety of the electrical system's core. Ground: Ensuring a continuous and reliable grounding path, critical for operational safety. With an insulation resistance of ≥5MΩ, this component is key to maintaining a secure and fault-free electrical environment. Demonstrating an insulation resistance of ≥5MΩ, this element ensures a robust and reliable electrical infrastructure. Featuring an insulation resistance of ≥5MΩ, this component is crucial for maintaining the integrity of the electrical system.
9.4 For optimal performance during external construction frequency voltage resistance tests, it is essential to pay careful attention to meticulously remove the temperature control probe wire from the coil. This precaution prevents the risk of breakdown in the thermostat's internal components, ensuring long-term reliability.
9.5 Routine inspection is paramount—verify whether the protection system operates under normal conditions.
9.6 Install the transformer at a minimum distance of 800mm from walls or other objects to optimize heat dissipation. Once installed, securely connect the ground bolt to the general ground loop for reliable grounding, thus ensuring safety and longevity.

10, Network operation
10.1 Once the protection device and monitoring system are securely grounded and qualified, initiate transformer operation under no-load conditions. Conduct three shock closings, then meticulously check and adjust the protection system for optimal performance.
10.2 Following product delivery, ensure the voltage regulation tap position on the HV side is accurately connected as per the rated position. Adjust voltage as necessary during operation by referring to the tapping voltage on the product nameplate. Note: Voltage regulation must occur with the transformer power supply disconnected, ensuring safety and compliance.
10.3 The transformer utilizes the advanced BWDK series temperature controller. The temperature measuring unit, strategically placed at the low-voltage coil's upper end, automatically detects and displays the working temperature of each phase. As coil temperature reaches a set threshold, the system proactively manages the fan, issuing alarms or executing trips as needed. Users can tailor temperature settings using the thermostat manual, enhancing operational precision.

11. Maintenance
After a period of operation, it is vital to disconnect the dry transformer to perform comprehensive checks and maintenance, ensuring continued performance and safety.
11.1 Conduct thorough inspections of the coil, iron core, wire sealing, tap-connecting terminals, and fasteners. Look for signs of damage, deformation, loosening, discoloration, overheating, or corrosion. Address any anomalies promptly with appropriate operational repairs to maintain functionality.
11.2 Regularly remove dust from the transformer. Use a dry cloth for accessible parts, while compressed air should be employed for areas that are hard to reach, such as the iron core coil, to avoid the use of volatile cleaners.
11.3 For transformers equipped with fans, ensure both dust and soil accumulations are thoroughly removed from the fan. Pay careful attention to avoid fan blade deformation and check the fan bearing's grease, replenishing or replacing it as necessary to maintain efficient operation.
11.4 To ensure optimal performance and safety, once inspection and maintenance are concluded, it is imperative to meticulously verify that no metallic or non-metallic foreign objects have inadvertently fallen or remained lodged within the coil, iron core, or any insulation components before reactivating the transformer.


12. Security Matters
12.1 For enhanced safety, the power to the temperature controller and fan should be sourced through the switch panel rather than a direct transformer connection. 12.2 Prior to energizing the transformer, a thorough verification of the grounding system within the transformer room is essential to ensure it meets safety standards.
12.3 To guarantee electrical safety, the door of the transformer casing must be securely closed, ensuring restricted access and preventing unauthorized interference.
12.4 Effective measures must be in place within the transformer room to preclude the entrance of small animals, thereby minimizing the risk of unforeseen incidents and ensuring the seamless operation of the transformer.
12.5 Personnel entering the transformer room are required to wear insulated footwear and conscientiously maintain a safe distance from live components, avoiding any physical contact with the transformer to uphold safety protocols.
12.6 In the event of a sudden escalation in transformer noise, immediate attention should be directed towards assessing the transformer's load and grid voltage. Concurrently, enhance observation of temperature fluctuations, and promptly consult with relevant personnel for expert advice.
12.7 Routine transformer evaluations should be conducted every 3-5 years, during which preventive tests may also be performed to detect potential issues early and ensure continued reliability.
12.8 The intricate processes of installing, testing, operating, and maintaining transformers should be exclusively managed by qualified professionals to ensure adherence to safety and operational standards.

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.