11kv & 33kv Outdoor Metering Unit Metering Box with CT PT Transformer

• Transport Package: Wooden Case
• Trademark: ROOQ
• Origin: Wenzhou/China
• HS Code: 9030849000
• Production Capacity: 500PCS/Month

Product Description

Basic Info.

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.