33/35kV Indoor Current Transformerr

Product Parameters:

MODEL:33-40.5kv Indoor current Transformer

· Indoor epoxy resin current transformer
· Single phase
· Rated voltage: 33kV, 35kV, 36kV, 40.5kV
· Metering class for CT: 0.2S, 0.2, 0.3, 0.5, 0.5S, 0.6
· Standard: IEC, ANSI, GB
· Type name: LZZBJ9-33,LZZBJ9-35

 General
This indoor dry type current transformer is used in 33kV, 35kV, 36kV and 40.5kVpower system, for measuring and protection.
It has been used in cubicle switchgear or in bay-installed switching stations.
The current transformer is made from high temperature indoor epoxy resin, amorphous alloy core for metering and high quality CRGO core for protection, primary and secondary use pure electrolytic copper, both winding and core have shielding processing.

Standard
All UNISUN Electric instrument transformers are in conformity with IEC standards, and recommendations IEC 61869. Transformers in conformity with specific country standards can also be supplied. (IEEE C57.13, NBR6855).

Specification data she

Rated
primary
current(A)
Accuracy classes
combination
Accuracy class and output
(VA)
Short-time thermal
current(kA/1s)
Rated dynamic
current(kA)
0.2s0.20.5s0.510p1010p1510p20
5

0.2S/10P10

0.2S/10P15
0.2S/10P20
0.2/10P10
0.2/10P15
0.2/10P20
0.5/10P10
0.5/10P15
0.5/10P20
0.2S/0.2/10P10
0.2S/0.2/10P20

10

10

10

10

15

15

15

0.512.5
1012.5
151.53.75
2025
252.56.25
3037.5
40410
50512.5
757.518.75
100

10

10

10

10

15

15

15

1025
1501537.5
2002050
3003075
40040100
5005075
6001515151520202060150
8001515151520202080200
1000

15

20

15

30

30

30

20

80200
120080200
150080200
200080200
  • Products can be customized by customer requirements, above data is standard data, customized data please contact us.
  • Products can be customized by customer requirements, above dimension may change, correct dimension please contact us.
 

Why Buy From Us

 

  • Certified to international quality standards; core components meet the standards.
  • Easy payment and affordable prices.
  • Easy to use and excellent service

Primary Winding:

A high-electrolytic copper primary winding is used, and a silver-base welding material is used at the welding place. Semiconductor shielded paper is wrapped around it to ensure that the partial discharge testing data is qualified.

Secondary Winding

The large-capacity secondary winding is automatically wound with high-insulation, high-purity enameled wire to ensure a wide capacity output under standard accuracy.

Compact design, easy to install

This product is compact and lightweight, making it ideal for the compact designs of mainstream switchgear.

Oil-free and air-free, intrinsically safe

Solid epoxy resin insulation; free of insulating oil and SF₆, completely eliminating the risk of oil leaks, explosions, or gas leaks; flame-retardant and explosion-proof; suitable for indoor locations with stringent fire safety requirements.

Truly maintenance-free

The fully enclosed vacuum-cast unit offers excellent sealing performance, is resistant to moisture and aging, and requires no oil changes or gas replenishment. It requires virtually zero maintenance throughout its service life, making it ideal for unmanned substations.

Highly adaptable to the environment

Epoxy enclosures are water-resistant, salt-fog resistant, and UV-resistant, and can prevent surface creepage and flashover in highly contaminated areas.

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