66kv Electric Power Transformer 2000-100000kVA

Product Description

Product Description

66KV Electric Power Transformer

Product Parameters

Rated capacity (kVA)	high Voltage (kV)	Tap range	low voltage (kV)	Connection Group	No-load loss (kW)	Load loss (kW)	No-load current (%)	Impedance voltage(%)
2000	60 63 66	±8×1.25%	6.3 6.6 10.5 11	YNd11	1.8	14.7	0.3	8.0
2500					2.1	17.4	0.3
3150					2.4	20.7	0.3
4000					3.1	24.6	0.3
5000					3.7	27.6	0.3
6300					4.4	30.8	0.3	9.0
8000					5.3	36.5	0.3
10000					6.2	43.0	0.3
12500					7.4	51.1	0.3
16000					8.9	62.8	0.3
20000					10.6	76.1	0.3
25000					12.5	90.0	0.3
31500					14.8	108.0	0.3
40000					17.7	126.9	0.3
50000					20.9	150.3	0.3
63000					24.7	178.2	0.3
75000					28.2	203.1	0.3
90000					32.3	232.9	0.3
100000					34.9	252.0	0.3

 
Core Product Features

1. Excellent Electrical and Mechanical Performance: Through our proprietary calculation and verification procedures, core components such as the core, coil, and leads are precisely optimized, resulting in products with high electrical and mechanical strength, capable of withstanding severe grid surges and short-circuit currents.

2. Energy-Saving, Environmentally Friendly, and Economically Efficient: The product features low losses (both no-load and loaded) and low noise levels, effectively reducing power station operating costs, complying with national industrial policies for energy conservation and consumption reduction, and enhancing the overall economic benefits of the power grid.

3. Extremely High Operational Reliability: The low partial discharge design and fully sealed, no-hanging core structure effectively prevent moisture and aging of the insulating oil, significantly reducing maintenance workload, extending the equipment life, and ensuring absolute long-term operational reliability.

4. Compact Structure and Superior Design: Superior craftsmanship and material selection ensure the transformer maintains performance while achieving the advantages of small size and light weight, facilitating transportation and installation, and saving space. The winding arrangement (core-low voltage-medium voltage-high voltage) of the step-down three-winding transformer is optimized to optimize impedance distribution and meet system protection requirements.

5. Excellent grid adaptability: One winding in the three-winding design is typically connected in a delta configuration, effectively suppressing third harmonics, improving voltage waveform quality, and ensuring high-standard adaptability to modern power grids.


Wide Applications

Due to their stable and reliable performance, the 66kV power transformer is suitable for a variety of harsh environments. Its main applications are:

Traditional power systems: major power plants and regional substations, serving as key nodes for power transmission and distribution.

Urban infrastructure: power supply systems in densely populated areas such as high-rise buildings, commercial centers, subways, airports, and train stations.
Large-scale industrial sectors: industrial and mining enterprises, petrochemical bases, and other locations with extremely high requirements for power supply continuity and safety.
Harsh environments: particularly suitable for offshore drilling platforms, oil production platforms, and special environments such as flammable and explosive environments. Its fully sealed and rugged structure provides extremely high safety assurance.

Project Cases
The image below shows a transformer used in a 20MVA 66kV photovoltaic power station project installed by TSTY in Africa. In addition, TSTY has exported transformers to more than 80 countries and regions, including the Philippines, Colombia, Ethiopia, Russia, Zambia, and Chile.

 

Fields of application

Waste incineration project,three gorges dam project,zhuhai-hong kong-macao bridge,state grid corporation,coal mine,photovoltaic project Power stations,compact transformer station, normal industrial factories , mines , hospitals, buildings, airports, tunnels, chemical plants, nuclear power plants etc.and so on.

 

 

Packaging & Shipping

Company Profile

TSTY Electric Co., Ltd. was established in 1995 and is an excellent and reliable transformer manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations and high and low voltage complete sets of equipment.
The equipment put into production and operation of the project advocates energy saving, intelligence, information and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center,with 71 utility model patents and 15 invention patents.
With years of accumulation in the transformer industry and strong technological innovation capabilities, TSTY Products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa and other regions, covering more than 80 countries.

Production Equipment







FAQ
Q: Who are we?
A:We are a big professional manufacturer of oil immersed transformer, dry type transformer, transformer substation,HV and LV switchgear, established in 1995 year .

Q: Why should you buy from us not from other suppliers?
A:As an enterprise specializing in transformer production for 12 years. ISO9001-2008, OHSAS 18001:2007, ISO4001:2004L .CE,CCC,UL,CSA,TYPE TEST REPORT,etc certificates.

Q: How do transformers been shipped?
A: Transformers always been delivered by ship,train or truck for oversea,which with main active body in bulk and accessories in wooden cases.

Q: Can your product be customerized? 
A: Considering differences in voltage, frequency and other speciality of transformer product in different countries and
regions,our product can be customerized according to your requirements.

Q: Do you offer guarantee for the products? 
A: Yes. We offer at least two years guarantee for all of our transformers. 

Q: Do you accept FAT(Factory Acceptance Test)? 
A: Yes. It's available. We are responsible for each set transformer's testing. 

Q: Do you assign engineer for after-sale service?
A: Yes. For our products,we all show after-sale guide installation adn question inquiry.