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  • LSZ Three-phase Integrated Series Current Transformer
Medium Voltage Mutual Inductor, Embedded Pole

LSZ Three-phase Integrated Series Current Transformer

LSZ Three-phase integrated zero sequence current transformer can be applied to the power system o...

  • Product Introduction
  • Product Features
  • Technical Parameters

Product Introduction

LSZ Three-phase integrated zero sequence current transformer can be applied to the power system of rated frequency 50Hz and rated voltage 12KV, installed in RMU and tri-phase bushing of pole-mounted switch, used for the measurement and protection of tri-phase current and zero sequence current, and also used for the measurement and protection of zero sequence current of multiple cable circuit.

 

Product Features

The product is composed of tri-phase integrated plastic shell, tri-phase integrated zero sequence winding, A、C phase coil winding and epoxy resin casting. In the middle of plastic shell is the circular hole for tri-phase cable, in the lower part is the mounting hole for the fixed installation. The core and secondary winding all adopt high-quality epoxy resin casting in the flame-retardant plastic shell with the characteristics of moisture-proof, stable performance, simple structure and easy installation.


Technical Parameters

Rated Insulation Level:3kV
Rated Frequency:50Hzor60Hz
Rated Secondary Current:5Aor1A

Product Performance Standard: GB20840.1-2010andGB20840.2-2014

Ambient temperature: -5~+40


Other Technical Parameters:

Model Rated primary current (A) Accuracy class combination  Accuracy class or the corresponding Rated output (VA)
0.5 1 3 10P10
LSZ107-Ф75 200/5 0.5 3.75 5 5 1
300/5 1 5 7.5 7.5 1.5
400/5 3 7.5 10 10 1.5
500/5 10P10 10 15 15 2.5
600/5 15 15 15 2.5
100~200/5 2.5
200~400/5 0.2/0.5 3.75/3.75
Model Specification and parameter 
LSZ135-Ф80 Zero sequence   20 / 1   1 class  0.2VA 
A / C phase 200, 400, 600 / 5   10P100  10VA
LSZ135-Ф110

Zero sequence   20 / 1   1 class  0.1VA 

A / C phase 600 / 1   10P20  5VA