Differences Between Servo Electronic Transformers and Conventional Transformers

In today's fast-paced industrial automation field, selecting the appropriate transformer has a significant impact on machine performance, energy efficiency, and operational reliability. This article will compare servo electronic transformers and traditional transformers, focusing on their differences in characteristics, performance, and applicable applications.



What is a servo electronic transformer?

A servo electronic transformer is an advanced, compact device specifically designed for the servo systems of modern automated equipment. They are manufactured using high-precision modules and materials to meet the stringent requirements of industrial applications.

Differences in Characteristics and Performance

1. Servo Electronic Transformer

(1) Superior performance, high precision, high quality, and high reliability. Utilizes top-tier advanced intelligent modules imported from Japan and Germany, featuring strong load-bearing capacity, stable output, pure output, and built-in EMI harmonic suppression. Zero returns, zero failures.

(2) Comprehensive Protection Functions

1. Protects servo drives from sudden overvoltage, reduces surges and peak currents, improves true power factor, suppresses grid harmonics, and enhances input current quality.

2. Smoothly filters and reduces transient voltages, extending the lifespan of servo drives; also reduces eddy current losses and minimizes leakage currents caused by higher-order harmonics.



(3) Strong overload capacity, capable of withstanding 3-5 times overload capacity instantly, and adoption imported heat dissipation adhesive and high-performance composite insulation materials for encapsulation, enabling the product to operate stably in harsh working environments.

(4) Compact size, specifically developed for servo systems, more suitable for servo drives. Compact design, flexible installation, box-shaped exterior, small size (palm-sized), can be installed anywhere. Cost-effective and reliable, with a five-year warranty and a lifespan exceeding 20 years. Intelligent (adaptive) design automatically adjusts output current based on the servo system's current requirements, ensuring stable performance unaffected by grid voltage fluctuations, thereby optimizing servo motor performance.

Summary: The servo transformer is equipped with six protective functions: overvoltage protection, undervoltage protection, phase loss protection, zero-voltage protection, harmonic suppression, automatic power restoration, and fault alarm notification.

Traditional dry-type transformers

1. Large size, bulky, space-consuming, and high cost.

Composed of a core (or magnetic core) and windings, the windings have two or more coils, with the coil connected to the power source called the primary coil and the remaining coils called secondary coils. A stationary electrical appliance manufactured using the principle of electromagnetic induction.

2.Conventional Electronic Servo Transformers  

• Voltage imbalance design: voltage cannot be measured  
•  No protection: zero drop, phase loss, prone to burning out the servo  
• Poor harmonic suppression  
   Severe servo interference and frequent alarms  
• No fault alerts  
  Unable to identify the fault location  
• Complex wiring  
•  Different wiring configurations for servos of different brands

 Different application ranges

1. Application scope of servo electronic transformers: CNC machine tools, printing machines, packaging machines, robotic arms, CNC machining centers, textile equipment, engraving machines, automated production lines, and over 20 other automated equipment industries.

Tip: Servo electronic transformers are compatible with all servo drive brands, such as Mitsubishi, Delta, Siemens, Yaskawa, etc.

Application scope of traditional dry-type transformers:  

Power transformers: Used for voltage step-up or step-down in power transmission and distribution systems.  
Instrument transformers: Such as voltage transformers, used for measuring instruments and relay protection devices.  
Special-purpose transformers: Such as furnace transformers, rectifier transformers, regulating transformers, capacitor transformers, phase-shifting transformers, etc.

Why choose Chuangwen Electrical's servo electronic transformers?  

If your application involves frequent speed control, precise motion, and reliability (e.g., in CNC or robotics), Chuangwen Electrical's servo electronic transformers are undoubtedly the best choice. They ensure stable operation of the servo system.  

• Voltage stability is maintained even under grid fluctuations
• Surge and harmonic protection extends equipment lifespan
•  Space-saving design ideal for compact installations
  
  Conclusion
  
  Servo electronic transformers are modern, intelligent servo transformers that replace bulky traditional dry-type transformers. With their exceptional performance, adaptive functionality, and robust protection mechanisms, they are the optimal solution for advanced automation systems. Investing in power quality improves productivity, safety, and equipment lifespan.