Name: China Large and Medium Power Transformers Manufacturers Suppliers Factory - Good Price - Transpower
Brand: Trans
SKU: 246747812

Transpower Electrical Equipment Co., Ltd. is one of the most reliable manufacturers and suppliers of large and medium power transformers in China. Welcome to buy high quality customized products at competitive price from our factory. Contact us for quotation.

Large and Medium Power Transformer

Large and Medium Power Transformers are key products at TRANSpower Electrical. Our focus is on delivering high-performance, high-capacity transformers to ensure power systems operate efficiently and reliably worldwide. Adhering strictly to international standards such as IEC and ANSI, we guarantee the quality and dependability of our products. Our transformers cover voltage ranges from 35kV to 220kV, catering to various scales of power projects.

Products Description

Large and Medium Power Transformers are crafted using premium silicon steel sheets and high-conductivity copper wires, featuring an optimized core design for efficient electromagnetic conversion. Their tanks are constructed from corrosion-resistant materials, and internal insulators offer exceptional heat resistance and longevity. Precision in winding processes and vacuum impregnation technology enable stable operation even under heavy loads. Rigorous production and testing processes ensure every transformer meets stringent quality standards.

Large and Medium Power Transformers play a crucial role in enhancing power transmission efficiency and minimizing energy loss. Their superior load regulation and consistent voltage output ensure dependable operation across diverse conditions, bolstering the reliability of power systems. These transformers exhibit exceptional resilience to short-circuits and overloads, sustaining stable performance in harsh environments and reducing maintenance expenses and equipment failures. By utilizing our medium and large power transformers, customers can significantly enhance overall power system efficiency and stability.

Large and medium power transformers find extensive applications in municipal power grids, industrial facilities, and large infrastructure projects. They are essential for stepping up high voltages from power plants to levels suitable for long-distance transmission and stepping down high voltages to levels appropriate for use. This ensures a steady and dependable supply of electricity to residential, commercial, and industrial establishments.

Power main transformer

Industry-specific attributes
Product	Large and Medium Power Transformers
Phase	Three phase
Coil Structure	Toroidal
Coil Number	Double winding or Triple winding
Other attributes
Place of Origin	Zhejiang, China
Model Number	Three phase large and medium power transformers (As per customer requirements)
Rated capacity	From 6300kva to 180mva
High Voltage	From 33kV to 220kV
Medium Voltage	36/37/38.5/66/69/115/121kV
Low Voltage	From 6.3kV to 69kV
Frequency	50/60Hz
Standard	IEC, ANSI, IEEE, CSA
Vector group	Yd11, YNd11, YNyn0d11, YNa0d11
Material	Aluminum/Copper
Application	Power plant (station), substation (power distribution stations), Urban power grids, Industrial facilities, Large-scale infrastructure projects
Type	Oil-immersed Transformer
Feature	Low Loss

product-778-644

Large and Medium Power Transformers Parameter

The following table lists the standard parameters for the 220kV large and medium power transformers. If you require other capacities and voltage levels, please contact TRANSpower for accurate technical specifications and customized offers.

Below Specs Are ONLY For Reference.

CAPACITY (kVA)	Voltage ratio and tap range (kV)		Connection Symbol	No-load loss (kW)	Full-load loss (kW)	Impedance (%)	No-load current
CAPACITY (kVA)	HV	LV	Connection Symbol	No-load loss (kW)	Full-load loss (kW)	Impedance (%)	No-load current
31500	220±8x1.25%	66.3; 6.6 10.5; 11 35; 37; 38.5	YNd11	38	135	12~14	0.70
40000				45	157		0.63
50000				54	189		0.56
63000				63	220		0.56
90000		10.5; 11 35; 37; 38.5		80	288		0.49
120000				99	346		0.49
150000				116	405		0.42
180000				135	468		0.42
120000		66 69		102	355		0.49
150000				120	415		0.42
180000				140	475		0.42

product-1033-729

10MVA 33kV Three Phase large and medium power transformers dimensions and weight details

product-967-722

Frequently asked questions (FAQ)

Q: What is the difference between HV and ehv?

A: In the international context, high voltage usually refers to rated voltages from 35 kV to 220 kV, ultra-high voltage (UHV) refers to rated voltages from 330 kV to less than 1,000 kV, and extra-high Voltage (EHV) refers to rated voltages of 1,000 kV and above.

Q: What is a large power transformer?

A: Voltage regulation in substations
Large power transformers in substations regulate voltage levels as needed to meet the requirements of different parts of the grid, demonstrating their key role as part of the grid infrastructure.

Q: What are the two 2 types of transformers?

A: Transformers are categorized into two main types:
1. Step-Up Transformers
2. Step-Down Transformers
A step-up transformer is designed to elevate low voltage to high voltage, which is achieved through a configuration featuring fewer turns in the primary coil compared to the secondary coil (Np < Ns).
In contrast, a step-down transformer converts high voltage to low voltage while simultaneously boosting current. This function is characterized by an increased number of turns in the primary coil relative to that of the secondary coil (Np > Ns).

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