Versatile Transformer with Voltage Regulator for Streamlined 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 unparalleled efficiency with our advanced Dry Type Transformer, meticulously engineered to cater to your modern energy needs. Harness cutting-edge technology ensuring seamless operation and sustainability.

SPECIFICATION: Discover the comprehensive specifications meticulously crafted to meet high-performance standards. Our product features superior design, robust construction, and exceptional functionality, delivering reliable solutions tailored for your specific power distribution requirements.

1. Product Description

Introducing the SCB series of epoxy resin dry type transformers from Zhejiang Gangkong Electric Co., Ltd, the epitome of safety, reliability, energy efficiency, and effortless upkeep. Designed to meet economic and safety demands, these transformers offer unparalleled functionality. With applications that span a wide range of environments, this series of transformers is the perfect solution for diverse needs.
Crafted with precision, these transformers boast an advanced design, meticulous processing, and comprehensive testing. The HV winding incorporates 99.9% oxygen-free copper conductor, epoxy network cloth, and resin, while the LV winding is crafted from 99.9% oxygen-free copper foil. The iron core utilizes premium, high-permeability cold-rolled silicon steel sheets and a unique binding method, ensuring exceptional mechanical and electrical strength. Experience superior heat dissipation, minimal local discharge, exceptional dependability, and an extended operational lifespan, along with resistance to moisture, flame-retardant and explosion-proof features. Environmentally friendly with low emissions, these transformers are lightweight and offer automatic temperature control, saving on space, maintenance costs, and energy consumption, making them a pivotal component incentral load distribution. Ideal for urban development, high-rise buildings, bustling commercial centers, residential areas, entertainment facilities, hospitals, tourism attractions, airports, seaports, rail stations, subways, tunnels, civil defense facilities, petrochemical plants, electrical utilities, food processing industries, sewage treatment, offshore oil platforms, mining operations, and beyond.




2. The Environmental and Operational Conditions
2.1 Installation sites must be at altitudes below 1000m with ambient temperatures not surpassing40°C. For conditions exceeding these parameters, customized designs are available.
2.2 In operational environments, relative humidity can reach 100%, with temperatures ranging from +40ºC to -25ºC (the latter requiring an on-load switch and temperature controller).
2.3 Primarily for indoor use, installation sites should be clean, free of electrical dust and corrosive gases, and well-ventilated. In areas with inadequate ventilation, forced airflow solutions should be implemented, requiring approximately 3-4 m³/min of ventilation provided per 1kW loss (including both no-load and load losses).
2.4 A clearance of 800mm should be maintained between the transformer and surrounding barriers,with a 300mm gap between adjacent transformers. These distances can be modified based on the constraints of distribution boxes and available installation space.
2.5 Typically, transformers can be installed directly at the intended site and commissioned post-inspection. In scenarios requiring vibration resistance or other special provisions, the foundation must be equipped with bolts to securely affix the transformer using bolts and nuts.

3. Core Specifications and Technical Parameters
3.1 Rated frequency:50Hz
3.2 Cooling method: AN or customizable to user needs.
3.3 Shell protection level: IP20, adaptable to specific user requirements.
3.4 Connection Group label: DynIl or as specified by the user.
3.5 Transformer phase sequence: When facing the high voltage side, the sequence is ABC for the high voltage and abc for the low voltage.
3.6 Winding insulation class: F class.
3.7 Insulation Level
Our high-performance transformers are expertly engineered to meet rigorous voltage specifications, ensuring optimal reliability and safety. For the 10kV product, experience a power frequency withstand voltage of 35kV and an impressive impact withstand voltage of 75kV. Elevate your expectations with the 20kV model, boasting a power frequency withstand voltage of 55kV and a remarkable impact withstand voltage of 125kV. For those demanding the utmost in power distribution, our 35kV product delivers with a power frequency withstand voltage of 70kV and an outstanding impact withstand voltage of 170kV.
3.8 Temperature Rise Limit: Experience peace of mind with our products, engineered to adhere to stringent temperature rise standards, ensuring optimum performance and longevity.
Insulation System Temperature (°C): 155. Maximum Temperature Rise (K): 100. Our advanced insulation technology is designed to withstand high temperatures, maintaining integrity and performance up to 155°C, with a maximum allowable temperature rise of 100K, ensuring durability and safety.









4.

Product Parameters

Model Code: SCType: B
Voltage Class: Outstanding KV Performance
Capacity: Robust KVA Rating
Performance Level Code: A Testament to Excellence
Crafted with Precision: The low-voltage coil is expertly wound with copper foil and encased in epoxy resin, ensuring durability and efficiency.
Three-Phase: Embracing Power and Balance


5. Product System Description: Delving into the Intricacies
5.1 Temperature Display and Temperature Control System: Precision Meets Innovation
Tailored to user specifications, this transformative product effortlessly integrates a temperature display and control system, offering functionalities such as (1) dispatching overload alarm signals with automatic temperature display.
(2) Safeguards are in place as the system ingeniously activates or deactivates the fan, disconnects the power supply, and halts transformer operation when coil temperature surpasses the set threshold.
5.2 Cooling System: Empowering Performance
The cooling method is designed for maximum efficiency: Air Natural Cooling (AN): , ensuring output capacity remains at 100%. ; With forced air circulation cooling (AF), enjoy enhanced performance with a long-term overload capacity of 25% and a short-term overload capability of 50%.
5.3 Protection Level: Prioritizing Safety and Durability
The standard protection level for this product is IPO0, designed for indoor use without a shell, ideal for indoor applications; It can be equipped with an additional shell,if required, offering IP20 or IP23 protection levels. A higher protection level may necessitate a reduction in transformer capacity.
Note: The IP20 enclosure prevents penetration by objects larger than 12mm, ensuring a protective barrier. Advancing to IP23, the enclosure also safeguards against water droplets within a 60° angle of the vertical.


6. Product Packaging and Transportation: Guaranteeing Safe Arrival
6.1 Product Types: Choose between the versatile open type (without protective cover) or the secure protected type (with protective shell) for diverse transportation modes including railway, waterway, and highway. If necessary, components may be disassembled for transport (such as an on-load tap changer, temperature controller, air cooling device, protective cover), either packaging them separately or as part of a comprehensive packing solution. Utilize cranes, winches, or other suitable machinery for lifting and unloading.
6.2 Ensure the product is shielded with waterproof covering during transit to prevent moisture damage.
6.3 While lifting packaged items, secure the rope to the bottom corner sleepers of the packaging boxes. Use specialized lifting equipment to elevate products 100mm-150mm off the ground, proceeding with caution to ensure no abnormalities before final ascent.
6.4 During transport, maintain incline angles below 15° to distribute load evenly across vehicles. Center the product's gravity along the vehicle's vertical axis to prevent movement and toppling during transit. Align the product's long axis with the direction of transport and secure tightly to the vehicle.
6.5 When manually loading and unloading vehicles without cranes, it is essential to adhere to stringent safety technical requirements. Be sure to meticulously verify the lifting capacity aligns perfectly with the transportation weight of the Versatile Transformer with Voltage Regulator for Streamlined Power Distribution, ensuring seamless and safe handling.
6.6 For enhanced stability during transit, users are advised to remove the rollers from the bottom of the car. This precaution stabilizes the product during transportation and should be reset upon installation at the destination. For trolleys, the roller axle at both ends of the frame can ingeniously be adjusted to a 90° angle, allowing versatile horizontal or vertical movement of the transformer.
6.7 Upon arrival at its destination, the transformer should be kept in the transportation state for the shortest time possible, which is crucial, especially if outdoors. Prior to installation, find a sheltered, dry, and ventilated location for storage. Implement protective measures to shield the product from any mechanical damage or contamination.


7. Inspection and acceptance
7.1 Upon receiving the product, it is imperative that users promptly remove the shell to conduct a thorough inspection and acceptance. Verify that all items listed in the packing list are present. Examine the transformer for any damage incurred during transportation, check for displaced or damaged parts, loose fasteners, compromised insulation, or dirt on the coil surface.
7.2 Ensure the nameplate data matches exactly with the user's specified product specifications, including capacity, voltage level, connection group label, and short-circuit impedance.
7.3 Confirm the completeness of all technical documents accompanying the delivery.
7.4 Should the product not be immediately put into operation post-unpacking, ensure it is repackaged and stored securely indoors to prevent potential damage or theft.
7.5 During transformer acceptance, a comprehensive handover document must be signed in collaboration with the transportation department. This document should thoroughly reflect any issues noted during the inspection, providing a clear record of the handover process.

8. Appearance inspection before installation
8.1 Once the packing case is opened, carefully remove any protective devices, and diligently inspect the external condition. Pay particular attention to the mechanical integrity and compression of the coil and core, as well as the tightness of the bolts at all connection points.
8.2 Post-inspection, ensure all fasteners and coil and iron core pressing components are retightened in sequence, leaving no room for any loosening.
8.3 Follow the factory technical conditions and complete assembly instructions meticulously when disassembling and reinstalling the transformer body, ensuring precise compliance with guidelines.
8.4 Utilize dry compressed air or clean rags to meticulously remove dust and dirt from the product, keeping the transformer pristine.
8.5 Should extended storage lead to water beads or significant condensation on the transformer surface, conduct a drying treatment immediately until the coil insulation resistance reaches the desired standard.

9. Inspection and test before operation
9.1 Accurately measure the DC resistance of both high and low voltage windings, ensuring data fidelity with the factory test certificate specifications.
9.2 Verify the reliability of the iron core grounding, typically located at the ends of the lower or upper iron yoke. Check for any other ground connections or multiple grounding occurrences, ensuring compliance with safety standards.
9.3 Conduct an insulation resistance test
at various voltage levels, including 10kv 20kv 35kv
to verify the integrity between the HV and LV coils. Achieve outstanding insulation with a resistance of ≥500 MΩ, ensuring robust performance and reliability. Experience superior insulation reliability with a resistance of ≥800 MΩ, providing enhanced safety. Benefit from exceptional insulation protection with a resistance of ≥1000 MΩ for uncompromised quality.
HV coil to Ground: Ensure optimal grounding and insulation for high voltage applications. Achieve outstanding insulation with a resistance of ≥500 MΩ, ensuring robust performance and reliability. Experience superior insulation reliability with a resistance of ≥800 MΩ, providing enhanced safety. Benefit from exceptional insulation protection with a resistance of ≥1000 MΩ for uncompromised quality.
LV to Ground: Ensure safe and effective grounding for low voltage elements. Maintain excellent insulation with a resistance threshold of ≥50MΩ, ensuring system dependability. Maintain excellent insulation with a resistance threshold of ≥50MΩ, ensuring system dependability. Maintain excellent insulation with a resistance threshold of ≥50MΩ, ensuring system dependability.
Core to Ground: Ensure the core is securely grounded for enhanced stability.Maintain strong and reliable grounding with a resistance level of ≥5MΩ. Maintain strong and reliable grounding with a resistance level of ≥5MΩ. Maintain strong and reliable grounding with a resistance level of ≥5MΩ. Maintain strong and reliable grounding with a resistance level of ≥5MΩ.
9.4 When performing external construction frequency voltage resistance, care should be taken to thoroughly execute the task to removeany potential issues by detaching temperature control probe wire from the coil to prevent internal component breakdown in the thermostat.
9.5 Ensure the protection system operates normally for seamless transformer functionality.
9.6 Position the transformer at least 800mm from walls or objects to aid heat dissipation. Once installed, ground the transformer securely by connecting the ground bolt to the main ground loop.

10, Network operation
10.1 First, ensure the attached protection and monitoring systems are grounded and functional. Operate the transformer under no-load conditions; post three shock closures, adjust the protection system accordingly.
10.2 After product delivery, connect the voltage regulation tap position on the HV side per rated specifications. Adjust voltage during operation by matching the tapping connection to the voltage specified on the product's nameplate; this action should be performed only when the transformer power is off.
10.3 The transformer features a BWDK series temperature controller with a sensor mounted at the LV coil's top. It autonomously monitors and displays the working temperature of each phase coil. If temperature thresholds are reached, the controller will automatically manage the fan, alarm, and trip functions. Users can adjust settings based on the thermostat manual.

11. Maintenance
Periodically, disconnect the dry transformer to perform crucial checks and maintenance activities.
11.1 Inspect the coil, iron core, wire sealing, tap terminals, and fasteners for any damage, deformation, discoloration, overheating, or corrosion. Address any abnormalities to prevent operational issues and implement corrective measures as necessary.
11.2 Clean the transformer by dusting off accessible parts with a dry cloth, avoiding volatile cleaners. Use compressed air to cleanse hard-to-reach areas within the iron core coil.
11.3 For transformers with fans, remove any accumulated dust and debris. Ensure fan blade integrity to prevent deformation and check the fan bearing grease, supplementing or replacing it if needed.
11.4 Upon completing the thorough inspection and meticulous maintenance, before reactivating the transformer, it is crucial to meticulously verify that no metal or non-metal foreign objects have inadvertently fallen into or been left within the coil, iron core, or insulation components.


12. Security matters
12.1 For optimal safety, the power supply to the temperature controller and fan must be accessed through the designated switch panel instead of a direct connection with the transformer. 12.2 Prior to the transformer's operation, a comprehensive examination of the grounding system within the transformer room is essential.
12.3 Ensuring electrical safety mandates that the door of the transformer housing remains securely closed at all times.
12.4 Implement effective measures to prevent the entry of small animals into the transformer room, thereby safeguarding against potential accidents.
12.5 Personnel entering the transformer room must don insulated shoes, maintain a safe distance from live components, and refrain from direct contact with the transformer.
12.6 An unexpected increase in transformer noise demands immediate attention to the transformer's load and the power grid's voltage. Intensified monitoring of temperature fluctuations and timely consultation with relevant personnel are imperative.
12.7 It is advisable to conduct a comprehensive check of the transformer every 3-5 years. During this period, preventive tests can also be executed to ensure continued operational efficiency.
12.8 Only qualified professionals should perform the installation, testing, operation, and maintenance of transformers to ensure 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.