Compact Design Transformer for Enhanced Power Distribution in Facilities

• 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: Unveiling the Future of Energy with our state-of-the-art Dry Type Transformer. Engineered for excellence, this innovation ensures peak performance and long-lasting reliability, providing unmatched efficiency and seamless power distribution.

SPECIFICATION: Dive into the detailed specifications of our Compact Design Transformer, meticulously crafted for superior functionality. Discover the perfect blend of precision engineering and cutting-edge technology tailored to optimize power distribution in facilities.

1. Product Description

The SCB series of epoxy resin dry-type transformers epitomize excellence in safety, reliability, energy efficiency, and effortless maintenance. Designed with a focus on economic efficiency, unparalleled safety, and versatility to thrive in various environments. This comprehensive range of transformers is designed to meet the diverse needs of multiple applications, ensuring seamless integration wherever they are deployed.
With advanced product design, meticulous manufacturing processes, and rigorous testing, this transformer series stands out. Each HV winding is crafted from 99.9% oxygen-free copper conductor, fortified with epoxy network cloth and resin. The LV winding utilizes 99.9% oxygen-free copper foil, while the iron core is fashioned from premium, high-permeability cold-rolled silicon steel sheets, coupled with a special binding method. This engineering marvel promises exceptional mechanical and electrical strength, superb heat dissipation, minimal local discharge, unmatched reliability, prolonged operational lifespan, resistance to moisture absorption, flame retardancy, explosion resistance, environmental friendliness, minimal energy loss, lightweight design, automatic temperature regulation, and efficient space utilization. These features contribute to reduced maintenance expenses and significant energy savings, making it an ideal choice forintegration into load centers. Perfectly suited for urban construction projects, high-rise buildings, bustling commercial hubs, residential complexes, entertainment and sports venues, healthcare facilities, tourist attractions, airports, ports, railway stations, subways, highway tunnels, civil defense infrastructures, petrochemical operations, electrical enterprises, food processing units, water purification systems, offshore oil platforms, mining operations, and many more.




2. Environmental and Operational Conditions
2.1 The installation site elevation should not surpass 1000m, with ambient temperature constraints not exceeding 40°C. For conditions beyond these limits, custom designs are available.
2.2 In operating environments, the relative humidity is up to 100%, with temperatures ranging from +40ºC to -25ºC (the lower limit with on-load switch and temperature control requirements).
2.3 Typically intended for indoor deployment, the installation area should be devoid of electric dust, corrosive gases, and maintain optimal ventilation. In poorly ventilated basements or similar locations, consider implementing forced ventilation solutions. This product necessitates around 3-4 m3/min of airflow per1kW of energy loss (inclusive of no-load and load losses).
2.4 When setting up the transformer, maintain a clearance of about 800mm from walls and other obstructions,ensuring a 300mm gap between adjacent transformers. These distances can be modified to fit distribution box constraints or limited installation spaces.
2.5 Generally, the transformer can be directly stationed at the site of use, ready for operation post-installation and inspection. In scenarios demanding shock-proofing or other specific needs, the transformer foundation should be secured with bolts, fastening the transformer firmly with bolts and nuts.

3. Key Specifications and Technical Parameters
3.1 Standard frequency:50Hz
3.2 Cooling technique: AN or tailored to user requirements.
3.3 Enclosure protection rating: IP20 or customizable based on user preferences.
3.4 Connection group label: DynIl or as specified by the user.
3.5 Transformer phase orientation: Observing from the high voltage side, the sequence is ABC for high voltage and abc for low voltage.
3.6 Winding insulation category: F class.
3.7 Insulation Level
Experience the robust capabilities of our Compact Design Transformer, expertly crafted for exceptional power distribution in facilities. Our 10kV model ensures a reliable power frequency withstand voltage of 35kV and effortlessly handles impact withstand voltages up to 75kV. The 20kV model steps up the game with a power frequency withstand voltage of 55kV, enduring impact withstand voltages as high as 125kV. Pushing the limits, our 35kV model impressively maintains a power frequency withstand voltage of 70kV while withstanding an impact voltage of 170kV, ensuring seamless and efficient energy management.
3.8 Temperature Rise Limit: Ensuring optimal performance and longevity, our transformers are designed to maintain a controlled temperature rise.
Our sophisticated insulation system operates at a temperature of 155°C, with a maximum temperature rise precisely limited to 100K. This ensures peak efficiency and safety, safeguarding both the equipment and its surroundings.









4.

Product Parameters

SCB
Voltage class kv
Capacity KVA
Performance level code
The low-voltage coil is crafted using copper foil wound with precision and encapsulated with epoxy resin for superior performance.
three-phase


5. Product system description
5.1 Temperature display and temperature control system
For optimal functionality and to meet user demands, this product can be equipped with an advanced temperature display and control system. Its roles include: (1) Emitting an overload alarm signal and providing automatic temperature readings.
(2) Activating and deactivating the fan when the coil's internal temperature surpasses the pre-set limits on the signal thermometer, thereby disconnecting power and safely shutting down the transformer.
5.2 Cooling System
The innovative cooling method employed is air natural cooling (AN), ensuring the transformer operates at 100% capacity.; For enhanced performance, forced air circulation cooling (AF) allows for long-term overload of 25% and short-term overload of up to 50%, ensuring reliability under demanding conditions.
5.3 Protection Level
This product boasts a general protection level of IP00, meaning the transformer is typically unshelled and requires indoor usage; It can be optionally outfitted with a protective shell,if necessary by the user, achieving an IP20 or IP23 protection level. Note, when using higher protection levels, reduction in transformer capacity may be required.
Note: An IP20 enclosure prevents solid objects larger than 12mm from making contact, thus shielding live components. Enhancing to IP23, the casing further deflects water droplets at a 60° angle from the vertical.


6. Product packaging and transportation
6.1 Products are available in two variants: open type (without shell) and protected type (with a shell) catering to various transportation modes such as railway, waterway, and highway. If needed, components can be partially disassembled for transport (e.g., on-load tap changers, temperature controllers, air cooling devices, protective covers, etc., are packed separately) or shipped as a single unit in a packing box. Cranes, winches, or suitable machinery are recommended for lifting and unloading.
6.2 To safeguard against elements during transit, ensure the product is shielded with a waterproof cover to avert rain exposure.
6.3 When lifting products in packing boxes, ropes should be attached to the sleepers at the bottom corners. Use a specialized lifting device to hoist the packaged products 100mm-150mm off the ground, proceeding only once stability is assured.
6.4 During transit, maintain a transport line incline not exceeding 15° to ensure even load distribution. The product's center of gravity should align vertically with the vehicle's central line when loading. Secure the product's orientation to match the transport direction, fortifying it against displacement or tipping.
6.5 When handling vehicles that lack cranes, it's essential to adhere to vital safety technical standards. Ensure the lifting capacity aligns seamlessly with the weight specifications of the product during transportation for maximum safety.
6.6 Users demand that products accompanied by a vehicle, especially those with rollers at the base, generally have these components removed during transit to guarantee stable transportation. Before installation at the destination, these rollers should be repositioned accordingly. For products with a trolley, adjusting the roller axle at both ends of the frame to a 90° angle enables smooth horizontal or vertical movement.
6.7 Upon arrival at the destination, limit the duration the product remains in its transportation state, particularly if exposed to open-air conditions. Prior to installation, store the product in a dry, covered, and well-ventilated location. Concurrently, implement measures to guard against mechanical damage and contamination.


7. Inspection and Acceptance
7.1 Upon receiving the product, the user is advised to promptly open the shell without delay for inspection and acceptance. Verify the completeness of the items listed in the packing list and assess the transformer for any damages sustained during transit. Inspect for any displacement or damage of components, loose fasteners, compromised insulation, or dirt on the coil surface.
7.2 Confirm that the data on the product nameplate aligns perfectly with the user's specified product specifications, capacity, voltage level, connection group label, and short-circuit impedance.
7.3 Ensure the delivery technical documents are comprehensive.
7.4 Should there be a delay in commissioning the product after unpacking, it must be repackaged and stored in a secure indoor location to avoid potential damage and theft.
7.5 During transformer acceptance, a corresponding handover document must be signed along with the transportation department. This document should clearly detail any issues identified during the inspection.

8. Appearance Inspection Before Installation
8.1 After unsealing the packaging, remove any protective devices if present and conduct a thorough examination of the exterior. Pay close attention to the mechanical integrity of both the coil and core, the compression levels, and the tightness of the bolts within the external connections.
8.2 Post-inspection, all fasteners as well as coil and core pressing components must be meticulously retightened in sequence. Ensure there is no occurrence of loosening.
8.3 In accordance with the factory's technical conditions and relevant assembly instructions, carefully disassemble and reinstall the transformer body.
8.4 Use dry compressed air or clean rags to remove dust and dirt from the product's surface.
8.5 If the transformer has been stored for an extended period and exhibits water beads or significant condensation on its surface, a drying process is imperative until the 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 the readings match those provided in the factory test certificate.
9.2 Examine the grounding of the iron core (typically located at the end of the lower or upper iron yoke) to verify its reliability, ensuring there is no interference in body overlap, and that there is no multiple grounding.
9.3 Test the insulation resistance
(Voltage Level) 10kv 20kv 35kv
HV Coil to LV Coil Resistance: ≥500 MΩ Resistance: ≥ 800 MΩ Resistance: ≥ 1000 MΩ
High Voltage (HV) Coil to Ground Resistance: ≥500 MΩ Resistance: ≥800 MΩ Resistance: ≥1000 MΩ
Low Voltage (LV) to Ground Resistance: ≥50 MΩ Resistance: ≥50 MΩ Resistance: ≥50 MΩ
Core to GroundConnection Resistance: ≥5 MΩ Resistance: ≥5 MΩ Resistance: ≥5 MΩ
9.4 During the external construction frequency voltage resistance process, ensure to pay special attention to removing the temperature control probe wire from the coil. This prevents breakdown of the internal components of the thermostat, ensuring safe operation.
9.5 Verify the protection system is functioning properly and efficiently.
9.6 The transformer must be positioned at least 800mm away from walls and any objects affecting heat dissipation. Upon installation, ensure the ground bolt is connected to the general ground loop for reliable grounding.

10, Network Operation
10.1 With the protection device and monitoring system grounded and qualified, initiate the transformer under no-load conditions. Perform three shock closing, then adjust and verify the protection system.
10.2 Post-delivery, the voltage regulation tap position of the High Voltage (HV) side is set to the rated position. Adjust the voltage during operation according to the tapping voltage specified on the product nameplate. Ensure voltage adjustments occur with the transformer power supply disconnected for optimal safety.
10.3 The transformer incorporates the BWDK series temperature controller. Temperature sensors at the upper end of the low-voltage coil automatically monitor and display the working temperature of the three-phase coil. The system activates the fan, stops it, sounds alarms, or trips once temperatures reach preset levels, adjustable per the thermostat manual.

11. Maintenance
After continuous operation, it’s crucial to disconnect the dry transformer for routine maintenance checks.
11.1 Inspect the coil, iron core, wire sealing, tap-connecting terminals, and fasteners for any damage, deformation, loosening, discoloration, overheating, or corrosion. Address any anomalies with appropriate corrective action.
11.2 Dust removal is essential. Wipe accessible parts with a dry cloth; avoid volatile cleaners. Use compressed air to clean hard-to-reach areas within the iron core coil.
11.3 For transformers equipped with fans, clear dust and soil from the fan. Check the fan blade to avoid deformation. Inspect and replenish or replace fan bearing grease as necessary.
11.4 After completing the inspection and maintenance, and prior to reactivating the transformer, it is crucial to meticulously examine the coil, iron core, and insulation components to ensure no metal or non-metal foreign materials have been inadvertently left behind.


12. Security Matters
12.1 The power supply for the temperature controller (and fan) should be routed through the switch panel, ensuring it is not directly linked to the transformer. 12.2 Prior to reactivating the transformer, a thorough inspection of the grounding system in the transformer room is imperative.
12.3 Ensure that the door of the transformer casing is securely closed to guarantee electrical safety.
12.4 Implement measures in the transformer room to prevent the entry of small animals, thereby averting potential accidents.
12.5 Personnel entering the transformer room must wear insulated shoes, maintain a safe distance from live components, and avoid contact with the transformer.
12.6 In the event of a sudden increase in transformer noise, promptly monitor the transformer’s load and grid voltage, closely observe temperature variations, and consult relevant personnel immediately.
12.7 Conduct a comprehensive inspection of the transformer every 3-5 years, during which preventive tests may also be performed.
12.8 The installation, testing, operation, and maintenance of transformers must be carried out by qualified professionals.

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.