Shanghai, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Electrical & Electronics, Industrial Equipment & Components, Manufacturing & Processing ...
Management System Certification:
ISO 9001, ISO 14001
OEM/ODM Service
Sample Available

Isolation Transformer, K Rated Transformer, Low Voltage Transformer manufacturer / supplier in China, offering High Efficiency K Rated Isolation Transformer, Single Phase Static Voltage Stabilizer, Outdoor Digital Servo Voltage Stabilizer and so on.

Diamond Member Since 2017
Audited Supplier
Supplier Homepage Products Transformer High Efficiency K Rated Isolation Transformer

High Efficiency K Rated Isolation Transformer

Get Latest Price
Min. Order / Reference FOB Price
1 Piece US $100-50,000/ Piece
Port: Shanghai, China
Transport Package: Wooden Box
Payment Terms: L/C, T/T
Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio
Phase: Three
Core: Core-type Transformer
Cooling Method: Dry-type Transformer
Winding Type: Separated Winding Transformer
Certification: ISO9001-2000, CCC

You Might Also Like


Basic Info

Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer, Isolation Transformer
Frequency Characteristics
Power Frequency
1kVA to 3000kVA
Shanghai, China


The K-rated transformers are isolation transformers specifically designed to withstand the phenomena due to the fact that non-linear loads generate high levels of harmonic distortion. Typical non-linear load are computers, variable speed drives, inverters, welders and so on. Harmonic generation results in increased current absorption and therefore higher losses. In order to ensure that the thermal class temperature limit is respected, the transformer design must keep into consideration the presence of said harmonics. The K factor is an indication of how much the harmonic distortion affects the system: the higher is K, the higher is the harmonic content that the transformer must withstand without any damage. It is worth reminding that a K-rated transformers does not cancel the harmonics in the system (except for third and triplen harmonics), but is able to tolerate their effects. In order to reduce or eliminate the harmonic content, it is necessary to arrange suitable filtering equipment.

Capacity 1KVA-3000KVA
Voltage Grade<= AC1140V
Input Voltage rangeRated voltage ±10%
Output VoltageRated voltage ±3% when input voltage is at the rated voltage.
Frequency50Hz or 60Hz
Dielectric Strength3500V / 10mA / 60s
Loading capabilityWhen the transformer is 100% loaded, it can take 3 times current in short time. 
Insulation≥100MΩ ( DC 500V )
Insulation GradeF
Working Temperature-15°C--+45°C
Temperature increase<100K

Company Profile:

Founded in 1983, GridStone Electric is a leading manufacturer of automatic voltage stabilizer and transformer. The products currently include digital static voltage stabilizer, digital servo voltage optimizer, power factor correction units, LV and MV transformers and reactors, UPS, Variable Frequency Power Source, Oil Immersed Induction Voltage Regulator. Thanks to over 30 years in the business and on going technical research, GridStone have become a competitive high-tech company, and meet the requirements of a constantly growing number of customers through design, production and service.

Besides standard production, GridStone is flexible and strong at custom design and production according to the customers' specification. Expert training and technical support are available to serve the customers quickly and professionally.

GridStone factories are ISO9001 and ISO14001 certified.

High Efficiency K Rated Isolation Transformer

Send your message to this supplier

avatar Mr. James Meng

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now

People who viewed this also viewed

You Might Also Like


Contact Supplier

Mr. James Meng