30kVA–6000kVA MV&HV Dry-Type Transformers (0.38kV/12kV) | Customization Available Upon Request

Product Details

Product Structure Features

01 Core System

Adopts high-quality cold-rolled grain-oriented silicon steel sheets (grade 30Q130 and above) with 45° full mitred joint lamination technology, effectively reducing no-load loss and operating noise, and improving energy conversion efficiency. The core surface is treated with a special insulating coating, featuring good oxidation and corrosion resistance. The overall design adopts a core-less lifting structure, with strong mechanical stability and improved seismic shock resistance, suitable for multi-condition installation needs.

02 Winding System

High-voltage windings can be equipped with copper/aluminum conductors (optional), using epoxy resin vacuum casting technology, with high insulation strength, good sealing performance, partial discharge ≤10pC, which can effectively resist short-circuit impact and extend service life. Low-voltage windings adopt foil or wire structure, combined with epoxy resin casting technology, featuring excellent heat dissipation performance and uniform and dense insulation layer, suitable for long-term high-load operation. Reasonable heat dissipation air channels are reserved between windings, which work efficiently with the cooling system to further improve heat dissipation efficiency and avoid local overheating.

03 Cooling and Temperature Control System

Standard configuration of PT100 temperature sensor, directly embedded in the winding, to monitor winding temperature in real time with accurate and reliable data feedback. The temperature controller integrates over-temperature alarm, over-temperature trip, and automatic fan start-stop functions. In AF mode, it can automatically switch operating status according to winding temperature, balancing heat dissipation effect and energy-saving needs. It also supports optional remote temperature control module to realize remote transmission, real-time monitoring and remote control of temperature data, adapting to intelligent operation and maintenance scenarios.

04 Enclosure and Protection

The enclosure is made of cold-rolled steel plate or stainless steel (optional), with plastic-sprayed surface, corrosion resistance, wear resistance and neat appearance. The enclosure is reserved with heat dissipation shutters and fan installation positions, accurately adapting to different cooling method requirements. The protection class can be customized according to the use scenario. Products with IP54 and above can effectively resist rain, dust and salt spray erosion, and can be directly used in outdoor, polluted and other complex environments.

Core Technical Parameters (General for SCB Series)

Core Performance Advantages

• 01 Safety and Environmental Friendliness

  Oil-free design fundamentally eliminates the risk of combustion and oil leakage, no environmental pollution hazards. Insulating materials are recyclable, fully complying with modern environmental protection concepts, suitable for crowded and flammable and explosive scenarios;

• 02 Low Loss and Energy Saving

  Level 1 energy efficiency design, no-load loss and load loss are much lower than national standards. Long-term operation can significantly reduce power consumption and save operation and maintenance costs for users;

• 03 Maintenance-Free Feature

  No need for tedious maintenance procedures such as regular oil change and oil filtration, only regular cleaning and maintenance are required, greatly reducing maintenance costs and downtime, and improving equipment operation efficiency;

• 04 Strong Environmental Adaptability

  Can adapt to special scenarios such as high altitude, high humidity, low temperature, salt spray and pollution through customized design, meeting the installation and use needs of different regions and working conditions;

• 05 Strong Impact Resistance

  Epoxy resin cast windings have high mechanical strength, combined with optimized structural design, can withstand sudden short-circuit impact and seismic load, with outstanding operation stability and reliability.

Installation and Maintenance Guidelines

• 01 Installation Environment Requirements

  The installation site must meet the following conditions: Ambient temperature is controlled at -40℃~+40℃, altitude does not exceed 3000m (derating design is required for high-altitude scenarios in advance); Relative humidity ≤95% without condensation, avoiding direct sunlight and rain (except for outdoor customized models); The foundation must be flat and firm, with sufficient heat dissipation space reserved (≥0.8m around, ≥1.5m above), away from corrosive gases, dust and strong electromagnetic interference sources.

• 02 Installation Steps

  1. Foundation Construction: Pour concrete foundation according to product dimensions and installation requirements, embed anchor bolts accurately to ensure that the foundation strength and bolt position meet installation standards;

  2. Equipment Positioning: Use forklift or crane to hoist the transformer to the installation foundation stably, correct the horizontal position, fasten the anchor bolts, and ensure that the equipment is fixed firmly without shaking;

  3. Wiring Operation: Connect high and low voltage cables strictly according to the electrical schematic diagram, ensure firm wiring and good insulation protection, and check insulation integrity after wiring is completed;

  4. Commissioning and Testing: Before power-on, test the winding insulation resistance (value ≥200MΩ). After confirming no abnormality, conduct 24-hour no-load trial operation, monitor winding temperature, operating noise and voltage deviation in real time, and put into formal operation only after all indicators meet the standards.

• 03 Daily Maintenance

  1. Regular Cleaning: Cut off power and clean dust on the enclosure and winding surface every 3~6 months to avoid dust accumulation affecting heat dissipation effect;

  2. Temperature Monitoring: Check the temperature controller data daily to ensure that the winding temperature does not exceed the rated limit (Class F ≤155℃, Class H ≤180℃);

  3. Insulation Testing: Test the winding insulation resistance at least once a year. If the value is lower than 100MΩ, vacuum drying treatment must be carried out in time to restore insulation performance;

  4. Fan Maintenance: Check the fan operation status every 12 months, clean dust on fan blades, and replace aged bearings to ensure normal start-stop and heat dissipation effect of fans.

• 04 Common Fault Troubleshooting

  Fault Phenomenon	Possible Causes	Treatment Methods
  Excessively High Winding Temperature	Overload, blocked heat dissipation air channel, fan failure	Properly reduce load, clean dust in air channel, overhaul or replace faulty fan
  Abnormally Increased Noise	Loose core, winding short circuit, loose fasteners	Tighten core and fasteners, test winding insulation performance, repair short circuit fault
  Low Insulation Resistance	Humid environment, damp winding, insulation aging	Carry out vacuum drying treatment on windings, replace aged insulation components
  No Display on Temperature Controller	PT100 sensor failure, abnormal power supply of temperature controller	Replace faulty sensor, check power supply line of temperature controller, eliminate power supply fault

Others

• Customization Service Plan

  In response to personalized needs of different industries and scenarios, our company provides full-dimensional customization services, specifically covering the following scopes:

  1. Capacity Customization: Customizable capacity of 30kVA~6000kVA on demand, precisely matching user load needs, avoiding capacity redundancy or insufficiency;

  2. Voltage Customization: Supports special voltage combinations and multi-winding output design, adapting to power supply systems with non-standard voltage levels;

  3. Environmental Adaptation Customization: Derating design for high altitude (≥3000m), anti-condensation treatment for high humidity (RH≥95%), cold resistance optimization for low temperature (≤-40℃), anti-salt spray coating for coastal areas, anti-corrosion structure for polluted areas;

  4. Function Customization: Noise reduction (≤55dB) optimization, explosion-proof design, lightning protection module installation, remote intelligent monitoring system, parallel operation adaptation, automatic fault alarm function;

  5. Structure Customization: Compact design (greatly saving floor space), outdoor integrated enclosure, mobile vehicle-mounted structure, integrated box-type transformer integrated design.

• Production Capacity and Delivery Guarantee

  1. Production Capacity Guarantee: The annual output of dry-type transformers of the company reaches 3,000 units, equipped with multiple standardized production lines and precision processing equipment, which can efficiently respond to batch orders and customization needs, ensuring the stability of delivery cycle;

  2. Delivery Cycle: The delivery cycle of regular customized products is 30~45 days, and urgent orders can be shortened to 20~25 days by optimizing the production process to meet users' emergency project needs;

  3. Quality Inspection: Each product undergoes full-item inspection by a professional testing center before leaving the factory, covering core items such as no-load loss, load loss, temperature rise test, insulation performance, noise test, and short-circuit test, providing a complete test report to ensure product quality meets standards;

  4. Warranty Service: The whole machine has a 1-year warranty period. During the warranty period, free repair and replacement of non-human-damaged components are provided; lifetime maintenance service and 7×24-hour technical support are provided to quickly respond to fault handling needs.

• After-Sales Service

  Adhering to the service philosophy of "full-process guarantee and efficient response", our company provides full-life-cycle after-sales service for users:

  1. In-Warranty Service: Provides free repair and replacement of non-human-damaged components, arranges professional and technical personnel to provide on-site guidance on installation, commissioning and fault troubleshooting to ensure normal operation of equipment;

  2. Out-of-Warranty Service: Provides core accessories at cost price, and offers equipment repair and upgrading services at preferential prices, minimizing users' operation and maintenance costs;

  3. Technical Support Service: Provides full-process technical services such as installation and commissioning, operation and maintenance training, technical consultation, and fault troubleshooting, and can carry out on-site training on demand to improve the operation ability of users' operation and maintenance personnel;

  4. Spare Parts Guarantee: Core components such as windings, temperature controllers, and fans are kept in stock, and a fast delivery channel is established to ensure timely supply of accessories and shorten equipment downtime.

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