High-Performance Ee Type Transformer for Reliable Power Management Solutions

• 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: A Revolutionary Step in Modern Electrical Engineering

SPECIFICATION: Detailed Insights for Precision and Performance

1. Product Description

Unveiling our SCB series of epoxy resin dry type transformers, designed with paramount safety, unwavering reliability, and exceptional energy efficiency at their core. These transformers promise seamless maintenance, offering a perfect synergy between economic advantages, safety standards, and versatile environmental adaptability. This remarkable series of transformers boasts an extensive range of applications, making it indispensable across multiple sectors.
Crafted with advanced design principles and stringent processes, complemented by impeccable testing standards, our transformers stand out. The high-voltage winding utilizes 99.9% pure oxygen-free copper conductor, epoxy network cloth, and resin, while the low-voltage winding employs 99.9% pure oxygen-free copper foil. The iron core is composed of premium, high-permeability cold-rolled silicon steel sheets and features a unique binding method, ensuring unparalleled mechanical and electrical strength. The result is a product with outstanding heat dissipation capabilities, minimal localized discharge, superior reliability, and an extended operational lifespan, resistance to moisture absorption, flame-retardant properties, explosion-proof design, and pollution-free characteristics. Additionally, it exhibits minimal energy loss, lightweight construction, automatic temperature regulation, space-efficient installation, and cost-saving maintenance. This transformer is a champion in energy conservation, perfectly tailored for deep integration within demanding environments such as urbancores. Ideal for urban construction projects, towering skyscrapers, bustling commercial centers, serene residential areas, vibrant entertainment and sports hubs, pivotal healthcare facilities, iconic tourist attractions, airports, ports, railway stations, subways, highway tunnels, and civil air defense infrastructures. It is also well-suited for petrochemical enterprises, electrical industries, the food sector, sewage purification plants, offshore oil platforms, mining operations, and more.




2. Environmental and Operational Conditions
2.1 The installation site should not exceed an elevation of 1000 meters, and the ambient temperature muststay below 40°C. For conditions surpassing these limits, specialized designs can be provided.
2.2 In operational environments, the relative humidity is expected to be 100%, with a temperature range from +40ºC to -25ºC. For temperatures as low as -25ºC, an on-load switch and temperature controller are required.
2.3 Generally destined for indoor use, the installation site should be spotless, devoid of electrical dust, corrosive gases, and should offer excellent ventilation. For locations like basements or areas with subpar ventilation, forced ventilation solutions should be implemented, requiring approximately 3-4m3/min of ventilation per1kW of loss (comprising both no-load and load losses).
2.4 Ideally, the product should be positioned 800mm away from walls and other obstacles, with a 300mm gap between neighboring transformers. However, these distances are adjustable in limited spaces, such as distribution boxes.
2.5 Typically, the transformer can be installed directly at the usage site, ready for operation post-installation and inspection. In cases demanding shock absorption or other specific requirements, install the transformer on a bolt-secured foundation, ensuring stability with bolts and nuts.

3. Essential Specifications and Technical Parameters
3.1 Rated Frequency:50Hz
3.2 Cooling Method: AN or customized to user preferences.
3.3 Shell Protection Level: IP20 or tailored to user specifications.
3.4 Connection Group Label: DynIl, or as per user requirements.
3.5 Transformer Phase Sequence: Observing from the high-voltage side, the sequence is ABC on the high voltage and abc on the low voltage.
3.6 Winding Insulation Class: F class.
3.7 Insulation Level:
Our range of cutting-edge transformers ensures robust voltage endurance across various specifications: the 10kV models exhibit a power frequency withstand voltage of 35kV and an impressive impact withstand voltage reaching 75kV. For the 20kV models, expect a substantial power frequency withstand voltage of 55kV and a remarkable impact withstand voltage reaching 125kV. Meanwhile, the 35kV variants offer a power frequency withstand voltage of 70kV, withstanding impact voltages up to a formidable 170kV.
3.8 Temperature Rise Limit: Discover the assurance of elevated performance with our products.
Insulation System Temperature (°C): 155. Experience the peak efficiency with a maximum temperature rise of 100k, achieving optimal thermal management.









4. Unveil the next level of power management excellence with our transformative solutions.

Product Parameters

SCB
Voltage Class (kV)
Capacity (KVA)
Performance Level Code
Our low-voltage coil design features copper foil wound with epoxy resin pouring for exceptional durability.
Three-Phase System


5. Product System Description
5.1 Advanced Temperature Display and Control System
This customizable feature can be tailored to user requirements, providing advanced functionalities like: (1) Automatically sending overload alarms and displaying precise temperature readings, ensuring optimal operation.
(2) The system intelligently manages internal temperature by activating fans or disconnecting power if the coil temperature exceeds set limits, safeguarding the transformer.
5.2 Efficient Cooling System
Our Cooling Method: Air Natural Cooling (AN), ensures a consistent output capacity of 100%. ; Additionally, Forced Air Circulation Cooling (AF) allows for a safe long-term overload capacity of 25% and a short-term capacity of 50%.
5.3 Robust Protection Level
Standard protection is IP00, indicating no enclosure; designed for indoor environments, additional enclosures can be added for Increased if users require IP20 or IP23 standards. Note, at higher protection levels, a reduction in transformer capacity may be necessary.
Note: The IP20 enclosure prevents objects larger than 12mm from entering, ensuring safety. The advanced IP23 enclosure additionally shields against water droplets at angles up to 60°.


6. Product Packaging and Transportation
6.1 Our products are available in two configurations: Open Type (without protective cover) and Protected Type (with protective shell). Ideal for railway, waterway, and highway transport, these can be partially disassembled for transport—components like tap changers, temperature controllers, or cooling devices may be packaged separately or transported in one unit. Utilize cranes, winches, or proper machinery for safe lifting and unloading.
6.2 Ensure the product is covered with waterproof material during transport to guard against rain damage.
6.3 When using lifting equipment for packed products, attach ropes to the sleepers at the bottom corners. Safely elevate the package 100mm-150mm off the ground with specialized lifting devices before proceeding with full lift once stable.
6.4 During transport, maintain gradients no greater than 15° to evenly distribute vehicle load. Position the product's center of gravity along the vehicle's vertical center line for stability. Securely fasten the product to prevent any shifts or toppling, aligning its long axis with the transport direction.
6.5 When loading and unloading vehicles without cranes, ensure adherence to safety technical requirements. Verify the lifting capacity aligns with the product's transportation weight, safeguarding both personnel and product integrity.
6.6 For secure transportation, remove rollers from products mounted on cars to maintain stability. These should be reset at the destination before installation. For trolleys, alter the roller axle at both frame ends to 90°, allowing seamless horizontal or vertical movement.
6.7 Once the product arrives, minimize parking time in transportation mode, especially outdoors. Prior to installation, ideally store it in a dry, ventilated, covered area. Implement protective measures against mechanical damage and contamination.


7. Inspection and acceptance
7.1 Upon receipt, the user should promptly open the shell for inspection and acceptance. Verify completeness against the packing list, assess for transportation-related damage, ensure components are intact and positioned correctly, confirm fasteners are secure, and inspect for insulation or coil surface issues.
7.2 Ensure product nameplate data aligns with user's required specifications: verify capacity, voltage level, connection group label, and short-circuit impedance.
7.3 Confirm comprehensiveness of the delivery technical documents.
7.4 If not immediately operational post-unpacking, repack and store indoors securely to prevent damage or theft.
7.5 For transformer acceptance, sign the handover document with the transportation department, detailing any inspection issues.

8. Appearance inspection before installation
8.1 After unpacking, remove any protective devices and check the exterior. Prioritize verifying mechanical integrity of coil and core, compression levels, and bolt tightness. bolts at external connections.
8.2 Post-inspection, systematically retighten all fasteners, coil, and iron core pressing components, ensuring no looseness.
8.3 Follow factory technical conditions and assembly instructions for disassembling and reinstalling the transformer body.
8.4 Use dry compressed air or clean rags to meticulously remove dust and debris from the product.
8.5 Should there be prolonged storage resulting in water beads or significant condensation, conduct drying treatment until coil insulation resistance meets standards.

9. Inspection and test before operation
9.1 Measure the high and low voltage winding DC resistance, ensuring consistency with factory test certificate data.
9.2 Verify iron core grounding reliability, located typically at the lower or upper iron yoke, checking for grounding integrity and absence of multiple groundings. other body laps.
9.3 Conduct insulation resistance tests
(Voltage level) 10kv 20kv 35kv
between HV and LV coils. Impedance: ≥500 MΩ Impedance: ≥ 800 MΩ Impedance: ≥ 1000 MΩ
High Voltage Coil to Ground Connection Insulation Resistance: ≥500 MΩ Insulation Resistance: ≥800 MΩ Insulation Resistance: ≥1000 MΩ
Low Voltage to Ground Connection Insulation Resistance: ≥50MΩ Insulation Resistance: ≥50MΩ Insulation Resistance: ≥50MΩ
Core Connection GroundConnection Core Insulation Resistance: ≥5MΩ Core Insulation Resistance: ≥5MΩ Core Insulation Resistance: ≥5MΩ
Section 9.4: During external frequency voltage resistance tests, ensure to carefully disconnectthe temperature control probe from the coil to safeguard against breakdown of thermostat internals.
9.5: Verify the protection system's operational integrity.
9.6: Install the transformer a minimum of 800mm from walls or obstructions to optimize heat dissipation. Ensure the transformer is reliably grounded by linking the ground bolt to the main ground loop.

10. NetworkOperation Procedures for
10.1: Once the protection and monitoring systems are grounded and certified, initiate transformer operation under no-load conditions. After three circuit closures, proceed with adjustments to the protection system.
10.2: Post-delivery, connect the voltage regulation tap of the HV side as per rated specifications. Any required voltage adjustments during operation can be executed by referring to the product's nameplate, ensuring transformer power is off during adjustments.
10.3: Equipped with a BWDK series temperature controller, the system monitors and displays real-time temperatures of the three-phase coil. Upon reaching set temperature thresholds, the system can autonomously control fan operations and issue alerts. Temperature settings are adjustable as per the thermostat manual.

11. Maintenance
Conduct regular maintenance to ensure operational excellence of the dry transformer. Schedule checks and maintenance post a defined operational timeframe.
11.1: Inspect coils, core, connections, and fasteners for any signs of damage, deformation, or corrosion. Promptly address any abnormalities to prevent operational failures.
11.2: Clean dust from the transformer, using dry cloths for accessible areas and compressed air for internal components, avoiding volatile cleaners.
11.3: For transformers with fans, remove dust and check for soil accumulation. Ensure fan blades are intact and lubricate bearings as necessary to maintain optimal performance.
11.4 After the diligent inspection and thorough maintenance procedures are completed, it is imperative to meticulously verify that no metal or non-metal foreign objects have inadvertently fallen into and remain within the coils, iron core, or insulation components before the transformer is re-energized.


12. Security Matters
12.1 Ensure the power supply to the temperature controller (and fan) is routed via the switch panel, avoiding direct connection to the transformer. 12.2 Prior to energizing the transformer, a comprehensive review of the grounding system within the transformer room is crucial.
12.3 Secure the door of the transformer enclosure to guarantee the utmost safety in electrical usage.
12.4 Implement protective measures in the transformer room to prevent the entry of small animals, thereby averting potential accidents.
12.5 Personnel entering the transformer room must don insulation shoes, maintain a safe distance from live parts, and refrain from any contact with the transformer.
12.6 Should there be a sudden increase in transformer noise, immediate attention must be given to the transformer load and power grid voltage. Diligently monitor the temperature variations of the transformer and promptly consult with relevant experts.
12.7 Conduct a comprehensive transformer inspection every 3-5 years, incorporating preventive tests during these evaluations.
12.8 The installation, testing, operation, and maintenance of transformers must be exclusively performed by qualified professionals, ensuring adherence to the highest 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.