11kv & 33kv CT PT Combined Oil-Immersed Metering Unit

• Customization: Available
• Vt Ratio: 11/0.11
• CT Ratio: 60/30/15/5A
• Transport Package: Wooden Case
• Trademark: ROOQ/Neutral/OEM
• Origin: China
• HS Code: 9030849000
• Production Capacity: 200PCS/Month

Product Description

Combination Instrument Transformer
 

The combined instrument transformer have 5 version with different voltage 3/6/12/36KV.The transformer are designed for 3 phase electric systems of rated frequency of 50/60Hz.The products are used in metering electric energy, voltage controlling and relay protection applications.


Technical specification:

1 - Rated voltage:6KV/12KV/36KV.

2 - Accuracy class:0.5/0.2 and 0.5s/0.2s.

3 - Rated voltage ratio:6kv/100; 1k/100; 3300/100

4 - Rated current ratio: 5-300/5

5 - Note: The products may be custom manufactured to a higher ratio.


Structure feature

The product mainly consists of combined instrument transformer and watt-hour meter. The combined transformer is equipped with 2 or 3 single phase VT and CT units.The transformer is insulated in 25# transformer oil. The outlet terminals of primary and secondary windings are encapsulated in porcelain bushing and fixed on the panel.Watt-hour meter tank is fixed on the flank of combined instrument transformer and comprises one active watt-hour meter and reactive watt-hour meter. The products are reliable, accurate, light and convenient in installation. They are also designed against stealing electricity.

1 - The transformer equipped with primary and secondary winding. The windings are fixed to the iron core bar by casting.

2 - For the two secondary windings, the first one is for either measuring or protection purpose; the other is for being connected into an open-delta connection in a 3 phase system. 

3 - The outlet of the primary winding is insulated from the earth to a correspondent level.

4 - The secondary terminal board is covered with a transparent cover made of plastic.

5 - The bolted earthed clamp is located on the transformer base plate.

6 - The transformer is fixed onto the base plate by four screws.

    Founded in 2008, registered capital of 108 million CNY, ROOQ electric group.;ltd is a high-tech enterprise specializing in the design, manufacture, sales and service of products such as power transformers, complete sets of electrical appliances, high and low voltage components, and smart city control systems.
    Since its establishment, ROOQ has always adhered to product quality first, as the guide of "customer demands". It has successively served for T2 Wenzhou Airport, Beijing Winter Olympics Ski Resort, Zhejiang National Defense Force, Hangzhou-Wenzhou Railway, Cangnan gymnasium, Country Garden Community, First People's Hospital of Songxi, Tema Road Lighting of Ghana, Presidential Palace of Burundi, Ministry of Energy of Rwanda, National Hospital of Mozambique, Refinery of CNPC in Thailand, State Television of Uzbekistan, Gold mine of Kyrgyzstan, National Data Center of Kazakhstan etc. With years of innovation and professional manufacturing experience, we have more than 20 independent intellectual property rights, and strong advantages in special product customization and EPC power engineering general contracting now. Stable quality assurance and timely delivery capabilities have won widespread trust from users around the world.