Dahu Electric as a professional high quality 33kv Current Transformer manufacturer, you can rest assured to buy 33kv Current Transformer from our factory and we will offer you the best after-sale service and timely delivery.
Cold-rolled silicon steel sheet :Because of its excellent magnetic properties, it is widely used as the core material of 33kV current transformer in electric power industry. Cold rolled silicon steel sheet has the characteristics of high permeability and low core loss, which makes it excellent in energy transmission. They are able to efficiently conduct magnetic fields, convert electrical energy into magnetic energy, and transmit it to other electrical devices.
Epoxy resin: Epoxy resin is a widely used material with excellent dielectric properties and mechanical strength. Especially suitable as 33kV current transformer primary insulation material. The dielectric properties of epoxy resins refer to their ability to resist the flow of current, which is essential to ensure the safe and efficient operation of electrical equipment. Due to its high dielectric strength, epoxy resins can withstand high voltage levels without breaking down, making them ideal for current transformer insulation.
In addition to its dielectric properties, epoxy resin also offers exceptional mechanical strength. It has a high tensile strength, which means it can withstand significant mechanical stress without deforming or breaking. This makes it highly reliable in protecting internal components of current transformers from external forces and vibrations.
Epoxy castings are made by pouring epoxy resin into a mold to provide reliable insulation for current transformers. The casting process ensures a uniform and seamless insulation layer that effectively prevents electrical breakdown and leakage. In addition, insulation blocks moisture, dust, chemicals and other environmental factors, further enhancing the protection of internal components. This manufacturing method ensures the quality and reliability of the castings, making it one of the commonly used insulation materials in the power industry.
Copper : Copper conductors are typically used for windings in 33kV current transformers. These materials offer high electrical conductivity and mechanical durability, enabling efficient transmission of current signals while withstanding operational stresses.
The 33kV current transformer manufactured by DAHU ELECTRIC is an essential component in indoor switch cabinets, playing a crucial role in modern electrical systems. It not only measures current but also performs important tasks such as electrical energy monitoring and ensuring the smooth operation of protective relays in both single-phase and three-phase AC systems.
In addition to its functional capabilities, the 33kV current transformer from DAHU ELECTRIC is known for its commitment to quality and innovation. It incorporates advanced features, undergoes rigorous testing, and complies with industry standards, ensuring reliable performance.
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. | Construction | Dry type Epoxy Resin Cast |
4. | Insulation | Cast Reain |
5. | Number of Phase | Single |
6. | Rated Frequency | 50 Hz |
7. | Systen Primary Rated Voltage | 33 kV Phase to Phase |
8. | Maximum Systen Voltage | 36 kV Phase to Phase |
9. | Systen Earthing | Effectively earthed |
10. | Basic Insulation Level (1.2/50 u sec. | 170 KV |
11. |
Power Frequency Withstand Voltage (1 min.50 Hz) |
70 KV |
12. 13. |
Ratio: 11kV Feeder Primary |
400/5A Single Winding |
14. | Secondary | Single Winding |
15. | Accuracy Class | 0.2/0.2S for Measurement |
16. |
Burden a)for Measurement |
10-15 VA |
17. | Short Time Current Rating | Minimum 80 kA for 1 Sec |
18. | Extended Curent Rating | 120%of Rated Current |
19. | Creepage Distance | 30 mm/KV(minimum) |
20. | Standard |
Design,Manufacture,Testing,Installation and Performance shall be in accordance to the latest editions of IEC 61869-1 &IEC 61869-2 |