Resin Insulation Dry Type Transformers Overview
| Type | Rated capacity （KVA） | Voltage combination（KV） | No-load losses（W） | Load losses（W） | No-load current （%） | Short-circuit impedance （%） |
| SC13-30 | 30 | 6,6.3,6.6,10,11/0.4 | 150 | 710 | 2.3 | 4.0 |
| SC13-50 | 50 | 6,6.3,6.6,10,11/0.4 | 215 | 1000 | 2.2 | 4.0 |
| SC13-80 | 80 | 6,6.3,6.6,10,11/0.4 | 295 | 1380 | 1.7 | 4.0 |
| SC13-100 | 100 | 6,6.3,6.6,10,11/0.4 | 320 | 1570 | 1.7 | 4.0 |
| SC13-125 | 125 | 6,6.3,6.6,10,11/0.4 | 375 | 1850 | 1.5 | 4.0 |
| SCB13-160 | 160 | 6,6.3,6.6,10,11/0.4 | 430 | 2130 | 1.5 | 4.0 |
| SCB13-200 | 200 | 6,6.3,6.6,10,11/0.4 | 495 | 2530 | 1.3 | 4.0 |
| SCB13-250 | 250 | 6,6.3,6.6,10,11/0.4 | 575 | 2760 | 1.3 | 4.0 |
| SCB13-315 | 315 | 6,6.3,6.6,10,11/0.4 | 705 | 3470 | 1.1 | 4.0 |
| SCB13-400 | 400 | 6,6.3,6.6,10,11/0.4 | 785 | 3990 | 1.1 | 4.0 |
| SCB13-500 | 500 | 6,6.3,6.6,10,11/0.4 | 930 | 4880 | 1.1 | 4.0 |
| SCB13-630 | 630 | 6,6.3,6.6,10,11/0.4 | 1070 | 5880 | 0.9 | 4.0 |
| SCB13-630 | 630 | 6,6.3,6.6,10,11/0.4 | 1040 | 5960 | 0.9 | 6.0 |
| SCB13-800 | 800 | 6,6.3,6.6,10,11/0.4 | 1210 | 6960 | 0.9 | 6.0 |
| SCB13-1000 | 1000 | 6,6.3,6.6,10,11/0.4 | 1410 | 8130 | 0.9 | 6.0 |
| SCB13-1250 | 1250 | 6,6.3,6.6,10,11/0.4 | 1670 | 9690 | 0.9 | 6.0 |
| SCB13-1600 | 1600 | 6,6.3,6.6,10,11/0.4 | 1960 | 11700 | 0.9 | 6.0 |
| SCB13-2000 | 2000 | 6,6.3,6.6,10,11/0.4 | 2440 | 14400 | 0.7 | 6.0 |
| SCB13-2500 | 2500 | 6,6.3,6.6,10,11/0.4 | 2880 | 17100 | 0.7 | 6.0 |
Resin insulation dry type transformers are widely recognized for their superior safety, reliability, and environmental friendliness. Unlike traditional oil-filled transformers, these transformers use epoxy resin to encapsulate the windings, which provides excellent insulation and protection against moisture, dust, and other contaminants. This solid insulation method significantly reduces the risk of fire and leakage, making them ideal for indoor installations and sensitive environments.
The use of resin insulation also enhances the transformer’s thermal performance, allowing it to operate efficiently under various load conditions without overheating. Additionally, dry type transformers require less maintenance compared to oil-filled types, since there is no need to monitor or replace insulating oil. Their robust construction and resistance to short circuits make them suitable for industrial, commercial, and residential applications.
Enclosure Protection Ratings: IP20, IP21, IP23, IP30, and IP31
Enclosure protection ratings are critical in determining the suitability of a Dry type transformer for different environmental conditions. The IP (Ingress Protection) ratings such as IP20, IP21, IP23, IP30, and IP31 indicate the level of protection against solid objects and liquids. For example, IP20 offers basic protection against fingers and large objects, making it suitable for clean indoor environments where minimal exposure to dust and water occurs.
Higher ratings like IP21 and IP23 provide additional protection against vertically falling water drops and spraying water at an angle, respectively. These enclosures are commonly used in industrial settings where occasional exposure to moisture is expected. On the other hand, IP30 and IP31 enclosures offer protection against smaller solid particles and limited water ingress, making them versatile for various installation scenarios.
Selecting the appropriate IP rating ensures the transformer’s longevity and operational stability by preventing ingress of harmful substances that could damage the internal components. Manufacturers often customize enclosure designs to meet specific customer requirements, balancing protection levels with ventilation needs to maintain optimal transformer performance.
Choosing a Reliable Manufacturer for Resin Insulation Dry Type Transformers
When sourcing resin insulation dry type transformers, selecting a reputable manufacturer is essential to ensure product quality and compliance with international standards. Leading manufacturers invest heavily in research and development to improve resin formulations, winding techniques, and thermal management systems. This results in transformers that deliver enhanced efficiency, reduced noise, and longer service life.
A reliable manufacturer also provides comprehensive support services including technical consultation, customization options, and after-sales maintenance. They adhere to strict quality control processes and certifications such as IEC, UL, and ISO to guarantee that each transformer meets safety and performance benchmarks. Partnering with an experienced manufacturer helps businesses minimize downtime and optimize energy usage.
Furthermore, manufacturers with global distribution networks can offer timely delivery and local support, which is crucial for large projects and critical infrastructure. Evaluating manufacturers based on their track record, customer reviews, and innovation capabilities ensures that you invest in a transformer solution that aligns with your operational needs and regulatory requirements.
