Innovative Design Transformer for Optimal Power Distribution in Enterprises

• 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 Epoxy Resin Dry Type Transformer series, which epitomizes safety, reliability, energy efficiency, and effortless maintenance. Tailored for the perfect blend of economic value and safety, this series is your ideal choice. These transformers boast a broad spectrum of applications, seamlessly integrating into diverse environments with ease.
Designed with cutting-edge innovation, strict manufacturing processes, and rigorous testing, this product excels. The HV winding employs 99.9% oxygen-free copper conductor with epoxy network cloth and resin, while the LV winding uses 99.9% oxygen-free copper foil. The iron core comprises high-quality, high-permeability cold-rolled silicon steel sheets and a specialized binding method, ensuring remarkable mechanical and electrical strength along with exceptional heat dissipation. Experience unparalleled reliability and longevity with our product's long operating life, resistant to moisture uptake, flame retardancy, explosion proof features, eco-friendliness, minimal energy loss, lightweight design, automatic temperature control, and reduced space and maintenance costs, thereby optimizing energy usage and versatility.Perfectly suited for urban infrastructure, high-rise buildings, commercial hubs, residential locales, entertainment and sports complexes, healthcare facilities, tourist attractions, transportation terminals, subways, highway tunnels, civil air defense installations, petrochemical plants, electrical enterprises, food production sites, wastewater treatment facilities, offshore rigs, mining sites, and more.




2. Environmental and Working Conditions
2.1 The installation site must not exceed 1000m in elevation, with ambient temperature limits of40°C. Special designs are available for conditions beyond these parameters.
2.2 Operating conditions: relative humidity can reach 100% with environmental temperatures ranging from +40ºC to -25ºC. Ensure an on-load switch and temperature controller for -25ºC conditions.
2.3 Primarily for indoor use, the installation environment must be free from electric dust and corrosive gases, with proper ventilation. For basements or poorly ventilated areas, forced ventilation should be considered, requiring approximately 3-4m³/min ventilation per 1kW of total losses (including no-load and load losses).
2.4 Maintain a minimum distance of 800mm from walls and other obstacles, and ensure 300mm spacing between adjacent transformers. Adjust these distances as needed for confined spaces.
2.5 Generally, transformers can be placed directly at the site of use, ready for operation post-installation and inspection. For scenarios demanding shock-proofing, secure the transformer with bolts and nuts on a suitable foundation. bolts and nuts.

3. Main Specifications and Technical Parameters
3.1 Rated Frequency:50Hz
3.2 Cooling Method: AN or customized per user requirements.
3.3 Shell Protection Level: IP20 or as specified by the user.
3.4 Connection Group Label: DynIl or tailored to user preferences.
3.5 Transformer Phase Sequence: From the high voltage perspective, the sequence is ABC for high voltage and abc for low voltage.
3.6 Winding Insulation Class: Classified as F class.
3.7 Insulation Level
Our cutting-edge Innovative Design Transformer offers exceptional power frequency and impact withstand voltage! For the 10kv variant, enjoy a robust power frequency withstand voltage of 35kv and an impressive impact withstand voltage of 75kv. The 20kv model boasts a power frequency withstand voltage of 55kv coupled with a remarkable impact withstand voltage of 125kv. For the ultimate in power management, the 35kv version provides a power frequency withstand voltage of 70kv and a striking impact withstand voltage of 170kv.
3.8 Temperature Rise Limit: A crucial parameter for ensuring optimal performance and durability of our transformers.
Our transformers feature an advanced insulation system designed to handle a temperature of up to 155°C, ensuring resilience and longevity. The maximum permissible temperature rise is 100K, highlighting the high-caliber engineering that guarantees efficiency and reliability.









4.

Product Parameters

SCB
Voltage class kv
Capacity KVA
Performance level code
The low-voltage coil is copper foil wound epoxy resin pouring
three-phase


5. Product system description
5.1 Temperature display and temperature control system
According to the requirements of users, this product can be equipped with temperature display temperature control system, its function is :(1) send overload alarm signal, automatically display temperature.
(2) When the internal temperature of the coil exceeds the limit set by the signal thermometer, the fan can be started and stopped, the power supply can be disconnected, and the transformer can be cut off.
5.2 Cooling System
The cooling method is air natural cooling (AN), the output capacity is 100%; forced air circulation cooling (AF) can be long-term overload 25%, short-term overload 50%.
5.3 Protection Level
The general protection level of this product is IPO0, the transformer is not equipped with the shell, need indoor use; It can be equipped with a shell,if the user needs and IP20 or IP23(when the transformer protection level is high, the transformer capacity reduction operation should be considered).
Note: The IP20 housing prevents the entry of solid objects larger than 12mm, providing a safety barrier for live parts. On the basis of IP20, the protective shell of IP23 can prevent water droplets from flowing into the vertical line at an Angle of 60°.


6. Product packaging and transportation
6.1 Products are divided into two types: open type (without protective cover) and protected type (with protective shell), usually for railway, waterway, highway transportation, if necessary, can be partially disassembled transportation (such as on-load tap changer, temperature controller, air cooling device, protective cover, etc., need to be packaged separately) or the whole into the packing box transportation. Cranes, winches or other appropriate transport machinery can be used to lift and unload products.
6.2 During the transportation of the product, the product must be covered with waterproof cloth to prevent rain.
6.3 In the process of lifting the products with packing boxes, the rope should be hung on the sleepers at the bottom four corners of the packing boxes. The packaged products can be lifted 100mm-150mm from the ground with a special lifting device, and then formally lifted after there is no abnormal condition.
6.4 In the process of transportation, the transportation line should not be greater than 15° up and down slopes, in order to ensure that the vehicle evenly bear the load, the product center of gravity is located on the vertical center line of the vehicle when loading. In order to prevent the displacement and toppling of the product during transportation, the direction of the long axis of the product should be consistent with the direction of transportation, and the product should be firmly tied to the transport vehicle.
6.5 When handling vehicles without cranes, it is imperative to adhere to stringent safety protocols. Ensure that the lifting capacity aligns perfectly with the product's transportation weight. This check is vital to guarantee a seamless and secure loading and unloading process.
6.6 For user convenience during transportation, any product fitted with a trolley should have its rollers removed to enhance stability. Upon arrival, these rollers are reinstalled to ensure smooth installation. To facilitate movement, the trolley's roller axle can be adjusted by 90°, allowing the product to traverse both horizontally and vertically with ease.
6.7 Upon reaching the destination, minimize the product's time spent in transit conditions, particularly if exposed outdoors. Ideally, store the product in a dry, ventilated, and covered area until installation. Additionally, safeguard the product from potential mechanical damage and contamination.


7. Inspection and Acceptance
7.1 Upon receiving the product, the user should promptly open the shell for a meticulous inspection and acceptance. Verify that all items listed in the packing list are present and intact. Scrutinize the transformer for any transport-induced damage, check for displaced parts, loose fasteners, compromised insulation, dirt on the coil, and any other irregularities.
7.2 Ensure that the product nameplate data matches the user's specified product requirements, including capacity, voltage level, connection group label, and short-circuit impedance.
7.3 Confirm that all technical documents supplied with the product are complete and accurate.
7.4 Should the product not be operationally deployed immediately after unpacking, it is crucial to repackage it securely and store it indoors in a safe location to prevent any damage or theft.
7.5 For formal acceptance of the transformer, the relevant handover documentation must be signed alongside the transportation department, with any inspection findings duly noted within the document.

8. Appearance Inspection Before Installation
8.1 Once the packing case is opened, remove any protective devices and conduct a thorough external inspection, focusing particularly on the mechanical integrity and compression of the coil and core, as well as the secure fastening of external connection bolts .
8.2 Following inspection, ensure that all fasteners, as well as coil and core pressing components, are sequentially tightened, eliminating any potential looseness.
8.3 Carefully disassemble and reinstall the transformer body following the factory's technical guidelines and relevant assembly instructions.
8.4 Utilize dry compressed air or clean rags to meticulously remove any dust and dirt from the product, ensuring a pristine condition.
8.5 In cases of prolonged storage, where water droplets or condensation have formed on the transformer's surface, it is essential to perform a drying treatment until the coil insulation resistance meets standards.

9. Inspection and Test Before Operation
9.1 Conduct precise measurements of the DC resistance of both high and low voltage windings, verifying that the findings correspond with the factory test certificate data.
9.2 Evaluate the iron core grounding, typically located at the ends of the lower or upper iron yoke. Ensure that grounding is secure and check for any unwanted body laps or instances of multiple grounding. other essential checks.
9.3 Conduct an insulation resistance test across voltage levels of
10kv, 20kv, and 35kv, ensuring thorough verification between HV coil and LV coil.
Insulation Resistance: ≥500 MΩ - Ensures safety and reliability. Insulation Resistance: ≥800 MΩ - Guarantees optimal protection. Insulation Resistance: ≥1000 MΩ - Provides superior safety standards.
HV Coil to Ground - Ensures secure and efficient grounding. Insulation Resistance: ≥500 MΩ - Assures consistent performance. Insulation Resistance: ≥800 MΩ - Delivers enhanced protective measures. Insulation Resistance: ≥1000 MΩ - Offers maximum safety assurance.
LV to Ground - Guarantees stable and safe connections. Core Insulation: ≥50MΩ - Ensures dependable and secure performance. Core Insulation: ≥50MΩ - Provides adequate insulation standards. Core Insulation: ≥50MΩ - Fulfills essential safety criteria.
Core to Ground - Essential for reliable grounding. Ground - Ensures earth connection integrity. Core Insulation: ≥5MΩ - Meets basic insulation requirements. Core Insulation: ≥5MΩ - Provides sufficient grounding insulation. Core Insulation: ≥5MΩ - Ensures minimal safety standards.
9.4 For external construction frequency tests, it's crucial to pay attention to remove the temperature control probe wire from the coil to safeguard against thermostat internal component breakdown.
9.5 Verify that the protection system is operating correctly.
9.6 Install the transformer at least 800mm away from walls and other heat-restraining objects. Post-installation, securely connect the ground bolt to the general ground loop.

10, Network operation
10.1 With the protection and monitoring systems grounded and tested, initiate a no-load operation. After three shock closings, ensure adjustments and checks of the protection system.
10.2 Post-delivery, the HV side's voltage regulation tap should be set to the rated position. During operation, adjust voltage as indicated on the product name plate, ensuring power is off for changes. HV Voltage regulation - follow product guidelines for tapping connection adjustments, ensuring safety by disconnecting power during the process.
10.3 The transformer utilizes a BWDK series temperature controller, with sensors at the low-voltage coil's upper end, auto-detecting and displaying the three-phase coil's temperatures. It auto-activates the fan, provides alerts, and allows temperature adjustments as per the manual.

11. Maintenance
Routine checks and maintenance are crucial post-operation. Cut off power for these essential inspections.
11.1 Inspect for any damage, deformation, discoloration, or corrosion on the coil, iron core, and terminals. Address any anomalies with necessary corrective actions.
11.2 Remove dust from the transformer. Hand-wipe accessible parts with a dry cloth, avoiding volatile cleaners. Use compressed air for hard-to-reach areas inside the iron core coil.
11.3 Clean the fan, ensuring no blade deformation occurs. Inspect and, if needed, replenish or replace the fan bearing's grease.
11.4 After completing the meticulous inspection and maintenance, a thorough check is essential before energizing the transformer once more. Ensure that no metal or non-metal foreign objects linger within the coil, iron core, or insulation components, safeguarding the seamless operation of your transformer.


12. Security Matters
12.1 To ensure optimum safety and performance, the power supply for the temperature controller (and fan) must be routed through the switch panel, eschewing direct transformer connections. 12.2 Additionally, before deployment, it is crucial to meticulously check the grounding system within the transformer room to guarantee electrical integrity.
12.3 For enhanced safety, the transformer shell door must remain securely closed, preventing unauthorized access and ensuring the safe utilization of electrical power.
12.4 Implement preventive measures within the transformer room to thwart the entry of small animals, mitigating the risk of unforeseen accidents and ensuring uninterrupted functionality.
12.5 Personnel accessing the transformer room must don insulating footwear, maintain a secure distance from live components, and refrain from any physical contact with the transformer, prioritizing personal safety at all times.
12.6 Should there be a sudden surge in transformer noise, immediately monitor the transformer's load and the power grid voltage. Vigilantly observe any temperature fluctuations, and promptly consult relevant experts to address and resolve the issue.
12.7 Conduct a comprehensive inspection of the transformer every 3-5 years. During this period, execute preventive tests to assure ongoing operational excellence and reliability.
12.8 Installation, testing, operation, and maintenance of transformers must be entrusted solely to qualified professionals, ensuring that these critical processes are performed with the highest standards of expertise and safety.

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.