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  • LMZK Open-type Current Transformer
Medium Voltage Mutual Inductor, Embedded Pole

LMZK Open-type Current Transformer

LMZK open-type current transformer is applied to current measurement and micro-computer protectio...

  • Product Introduction
  • Product Features
  • Technical Parameters

Product Introduction

LMZK open-type current transformer is applied to current measurement and micro-computer protection of AC electric power system 35KV and 10KV. With the features of small size, light weight, openable and easy installation, the current transformer has widely used in compact insulated RMU and also used in combined substation and cable branch box. The CT is directly clamped on the incoming and outgoing cable.

 

Product Features

The product adopts imported silicon steel sheet as permeability magnetic material with the characteristics of divisible core and small magnetic circuit loss. The semicircular core and secondary winding adopt high-quality epoxy resin vacuum pouring in flame retardant plastic shell with the characteristics of moisture proof, stable performance and no maintenance. The two semicircular core are stuck in phase cable with tight hoop and three elastic rubber ring. The 35㎜2-400㎜10KVand 35KV cables are all applicable.


 

Technical Parameters

Model Current ratio Measurement winding Protection winding
Primary current (A) Secondary current (A) Accuracy class Rated output (VA) Accuracy class Rated output (VA)
LMZK1-10 300 1or5 0.5 1.5
400 2.5
500 3.75
600 5
LMZK1-10P 300 1or5 10P5 2.5
400 2.5
500 3.75
600 5
Model Current ratio Measurement winding Protection winding
Primary current (A) Secondary current (A) Accuracy class Rated output (VA) Accuracy class Rated output (VA)
LMZK2-10 100(not cut opening) 1or5 0.5 2.5
200-300 2.5
400 3.75
600 5
LMZK2-10P 100 1or5 10P5 1.5
200-300 1.5
400 10P10 2.5
600 2.5
LMZK2-10CP 100 (not cut opening) 1or5 0.5 1.5 10P5 1.5
200-300 1.5 1.5
400 2.5 10P10 2.5
600 2.5 2.5
Current ratio Measurement winding Protection winding
Model Primary current (A) Secondary current (A) Accuracy class Rated output (VA) Accuracy class Rated output (VA)
100 (not cut opening) 0.5 2.5
LMZK3-10 200 (not cut opening) 2.5
    300-400 1or5 3.75
600 5
 200-300 10P5 1.5
LMZK3-10P 400 1or5 10P10 2.5
600 2.5
200 (not cut opening) 1.5 10P5 1.5
LMZK3-10CP     300-400 1or5 0.5 2.5 10P10 2.5
600 2.5 2.5
Current ratio Measurement winding Protection winding
Model Primary current (A) Secondary current (A) Accuracy class Rated output (VA) Accuracy class Rated output (VA)
LMZK4-35 100(not cut opening) 1or5 0.5 2.5
200-300 2.5
400 3.75
600 5
LMZK4-35P 200-300 10P5 1.5
400 1or5 10P10 2.5
600 2.5
LMZK4-35CP 200-300 1.5 10P5 1.5
400 1or5 0.5 2.5 10P10 2.5
600 2.5 2.5