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12kV Voltage Transformer
  • 12kV Voltage Transformer12kV Voltage Transformer
  • 12kV Voltage Transformer12kV Voltage Transformer
  • 12kV Voltage Transformer12kV Voltage Transformer
  • 12kV Voltage Transformer12kV Voltage Transformer
  • 12kV Voltage Transformer12kV Voltage Transformer
  • 12kV Voltage Transformer12kV Voltage Transformer

12kV Voltage Transformer

The 12kV voltage transformer made by DAHU ELECTRIC is an indispensable component within indoor switch cabinets, serving as the backbone for current measurement, electrical energy monitoring, and protective relays across both single-phase and three-phase AC systems. Its robust design and precise functionality make it an essential element in ensuring the safety and efficiency of electrical operations.

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Product Description

Cold-Rolled Silicon Steel Sheets: 12kV voltage transformer usually uses cold-rolled silicon steel sheets as its core. These materials are cold-rolled and have excellent magnetic properties, such as high permeability and low core loss, which makes them ideal for current transformers. By using cold rolled silicon steel sheet as the core material, the current transformer can achieve efficient energy transfer, thereby improving the efficiency of the system. Compared to other materials, cold-rolled silicon steel sheets have lower hysteresis loops and magnetization losses, which means less energy waste and lower power consumption.


Epoxy resin: Epoxy resin has excellent dielectric properties and mechanical strength, is the first choice of 12kV voltage transformer insulation material. Epoxy castings provide reliable insulation that protects internal components from electrical breakdown and environmental factors..


Copper : Copper conductors are typically used for windings in 12kV voltage transformer. These materials offer high electrical conductivity and mechanical durability, enabling efficient transmission of current signals while withstanding operational stresses.


Material (Epoxy Resin ): 12kV voltage transformer use enclosures made of epoxy resin, which has excellent insulation properties and can prevent current or voltage crossing for safe circuit operation. It is also resistant to high temperatures and corrosion, and has good sealing performance for waterproof and moisture-proof capabilities. Epoxy transformers are lighter and easier to install and maintain compared to oil-immersed transformers.

Product Superiority

Our product plating of screws and bottom plate reaches 8um/min, which is more moisture-proof and rust-proof. The gloss is better.

1. Application Metering
2. Installation Indoor.
3. Insulation Cast Resin
4. Type Voltage Induction
5. Construction Dry type Epoxy Resin Cast
6. Number of Phase Singe Phase(1 set=3 Nos.)
7. Frequency 50 Hz
8 Mounting Mounted Supporting on Gantry Structure Mounted
9. System Primary Rated Voltage 11 kV(Phase to Phase)
10 System Primary Maximum Voltage 12 kV(Phase to Phase)
11. System Earthlings Effectively earthed
12. Basic Insulation (Impulse withstand
Voltage)
75 kV
13. Power Frequency Withstand Voltage 28 kV
14 The neutral end of primary winding,for
direct connection to ground
Insulated to withstand the 10 kV
low frequency test.
15. Type of Secondary Winding Single Winding
16. Transformation Ratio 11kVN3/0.11    kVN3
17. Creepage Distance 25     mm/kV(minimum)
18 Rated Secondary Burden 7.5 to 10VA
19 Voltage limit factor 1.2 continuous and 1.5 for 30 Seconds
20. Class of Accuracy 0.2 for metering
21. Standard Design,Manufacture,Testing,Installation and
Performance shall be in accordance to the latest
editions of IEC61869-1&IEC61869-3.


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