WESTINGHOUSE Transformer Product Line



WESTINGHOUSE Transformer Product Line

Brand and Quality Assurance

Brand Background: Westinghouse was founded in 1886 and has a 130 year history of product innovation. It is a globally trusted industrial and consumer product brand, with business covering multiple fields such as home appliances, consumer electronics, lighting, and power generation equipment.

Quality standards: The product strictly follows IEC international standards and Chinese GB standards, and some products can be designed and produced according to customized user needs.

Certification qualifications: Through ISO9001, ISO14001, OHSAS18001 system certification, transformer products have obtained authoritative certifications from KEMA in the Netherlands and CTQC (National Transformer Quality Supervision and Inspection Center) in China, covering products with different capacity levels of 16MVA-180MVA.

Transformer product system and core parameters

Westinghouse Transformer has a rich product line, covering 16 core products, which can be divided into the following categories according to voltage levels and applications. The key parameters are shown in the table below:

Product Category Voltage Level Rated Capacity Range Core Features Typical Parameter Examples

Power transformers with 220kV, 110/66kV, 35kV, 31500kVA-420000kVA dual winding/triple winding, on/off excitation voltage regulation, oil immersed short-circuit impedance of 6% -34%, no-load loss of 32kW-173kW

Distribution transformers 20kV, 10kV 30kVA-2500kVA have small size, light weight, low loss short-circuit impedance of 4% -6%, and no-load loss of 100W-3960W

Amorphous alloy core distribution transformer 10kV 30kVA-2000kVA is energy-saving and efficient, with no-load loss 50% lower than traditional products, no-load loss 33W-750W, and short-circuit impedance 4% -5%

Dry type transformer 35kV, 10kV 30kVA-25000kVA resin casting, low partial discharge (≤ 5PC), suitable for indoor no-load loss of 190W-27100W, short-circuit impedance of 4% -10%

Special purpose transformer -500kVA-10000kVA designed for specific scenarios, suitable for rectifier transformers with voltages ranging from 10kV to 66kV; Furnace Transformer: Suitable for Metallurgical/Chemical Smelting

Voltage regulating transformers ranging from 2.5kV to 35kV are matched with on load voltage regulation and automatic voltage regulation as needed, with 7-16 steps and a mechanical lifespan of 1 million cycles

Key product classification

power transformer

Covering three core voltage levels of 220kV, 110/66kV, and 35kV, including dual winding, triple winding, and self coupling structures.

Supports on load voltage regulation (OLTC) and non excited voltage regulation (NLTC), with a rated capacity of up to 420000kVA, meeting the high-voltage transmission needs of power plants and large substations.

Typical parameters: 220kV double winding transformer with no-load loss of 32kW-173kW, load loss of 128kW-824kW, and short-circuit impedance of 6% -14%.

distribution transformer

The voltage levels include 20kV and 10kV, with a rated capacity of 30kVA-2500kVA, suitable for distribution scenarios in residential communities, commercial centers, and small and medium-sized enterprises.

The 10kV distribution transformer adopts advanced core lamination technology, with no-load loss of 100W-1960W and load loss of 600W-18000W, low noise, and maintenance free.

Special purpose transformer

Rectifying Transformer: Suitable for scenarios such as electrochemical electrolysis, direct current transmission, and industrial rectification, with a rated power of 800kV-16000kV and a voltage of 6kV-35kV.

Furnace transformer: designed specifically for the metallurgical and chemical industries, used for alloy steel and ferroalloy melting, as well as yellow phosphorus and calcium carbide production. It has a rated capacity of 650kVA-25000kVA and supports overload operation.

Photovoltaic integrated substation: integrating inverters and boosting stations to increase the DC voltage of photovoltaic panels to 11kV/33kV AC voltage, with a maximum output of 3000kW per station.

Other types

Dry type transformer: indoor installation, resin casting process, partial discharge ≤ 5PC, suitable for high cleanliness scenarios, capacity 30kVA-25000kVA.

Column mounted transformer/box type transformer: compact structure, flexible installation, suitable for urban and rural distribution networks, road lighting, with a capacity of 30kVA-2500kVA.

Fully Automatic Protection Transformer (CSP): Integrated with high voltage fuses, low voltage circuit breakers, and lightning protection devices, it has short-circuit, overload, and lightning protection functions.

Operating environment and installation requirements

Temperature conditions: The working temperature of most products is -30 ℃ to+40 ℃, while some products such as dry-type transformers and column mounted transformers have a working temperature of -5 ℃ to+40 ℃, and a storage temperature of -40 ℃ to+70 ℃.

Altitude limit: The default installation altitude is ≤ 1000m, and if it exceeds this altitude, parameters such as temperature rise need to be corrected.

Humidity requirement: The working humidity should be ≤ 90% RH (without condensation) to avoid damage to the product caused by moisture inside.

Installation environment: It should be installed in a location free from corrosive gases, severe pollution, and severe vibrations and impacts. Outdoor products should have windproof and rainproof capabilities.

Application scenarios

Industrial scenarios: power distribution and production equipment power supply for steel plants, chemical plants, metallurgical plants, calcium carbide plants, and large manufacturing plants.

Energy scenarios: Energy conversion and transmission in power plants, substations, distribution networks, photovoltaic power stations, and wind power supporting facilities.

Livelihood scenarios: daily power distribution in residential communities, commercial centers, high-rise buildings, urban and rural buildings, schools, and hospitals.

Key issue

Question 1 (Product Adaptability): What is the voltage level and capacity coverage range of Westinghouse transformers, and what core scenarios can they meet for electricity demand?

Answer: The voltage level of Westinghouse transformers covers 2.5kV-220kV, with a rated capacity range of 30kVA-420000kVA, covering 16 core products. Low voltage level (10kV-35kV) and small capacity (30kVA-2500kVA) distribution transformers/dry-type transformers can meet the daily power distribution needs of residential communities, commercial centers, and small and medium-sized enterprises; Medium to high voltage level (110kV-220kV) and large capacity (31500kVA-420000kVA) power transformers, suitable for the high-voltage transmission needs of power plants and large substations; Special purpose transformers (rectifier, furnace, photovoltaic integration) can meet the specialized electricity needs of industries such as metallurgy, chemical, and new energy generation.

Question 2 (Quality and Reliability): What authoritative certifications have Westinghouse transformers passed, and how do their core technological advantages ensure operational reliability?

Answer: In terms of quality certification, our products have passed ISO9001/ISO14001/OHSAS18001 system certification, and our transformer products have obtained authoritative certifications from KEMA in the Netherlands and CTQC in China. They comply with IEC and GB standards in China, and some can be customized for production. In terms of technological advantages, firstly, the optimized design of the iron core, coil, and oil tank structure is adopted to achieve low loss (minimum no-load loss of 33W), low noise, and small volume characteristics; Secondly, key products have comprehensive protection functions, such as CSP series transformers integrated with high-voltage fuses, low-voltage circuit breakers, lightning protection devices, and furnace transformers supporting overload operation; The third is to adopt advanced production processes (such as resin casting and core lamination optimization), combined with strict factory inspections, to ensure long-term stable operation. The short-circuit impedance is controlled at 3.5% -34%, suitable for different power grid conditions.

Question 3 (Installation and Customization): What are the installation environment requirements for Westinghouse transformers, is personalized customization supported, and what is the scope of customization?

Answer: The installation environment requirements include: altitude ≤ 1000m (adjustable parameters beyond altitude), working temperature -30 ℃ to+40 ℃ (some products -5 ℃ to+40 ℃), humidity ≤ 90% RH (no condensation), and the installation site must be free of corrosive gases, severe pollution, and severe vibration. The product supports comprehensive personalized customization, including voltage level and transformation ratio, rated capacity and short-circuit impedance, winding structure (double winding/three winding), voltage regulation method (on load/off excitation), cooling method (oil immersed/dry/forced air cooling), protective accessories (fuses, circuit breakers, lightning protection devices), cabinet size, material, etc., which can accurately match the specific scene needs of users.