LFZZJ-12 12kV Current Transformer

  • Current Range:Supports rated ratios from 300/5A up to 600/5A
  • Multiple Accuracy:Accuracy classes include 0.2S, 0.2, 0.5S, and 10P
  • Short-Time Thermal:Withstands short-time thermal currents up to 40 kA (1s)
  • Dynamic Strength:Rated dynamic current withstand up to 80 kA
  • High Reliability:Ensures accurate measurement and robust protection
  • Wide Application:Suitable for medium-voltage power distribution systems
Describe Display

This current transformer is designed to provide precise current measurement and protection in medium-voltage electrical systems. It supports various transformer rated current ratios ranging from 300/5A to 600/5A, allowing flexibility for different load requirements. The transformer offers multiple accuracy class combinations including 0.2S, 0.2, 0.5S, and 10P to ensure accurate metering and reliable protection functions.

 

The product is rated for high short-time thermal current and dynamic current withstand capabilities, with short-time thermal currents up to 40 kA for 1 second and dynamic currents up to 80 kA. These specifications make it suitable for handling short circuit events safely, providing stability and durability in demanding electrical environments.

Product parameters
Rated transformer Ratio (A) Accuracy classes combination Rated output
(VA)
Rated short-time thermal current (kA/S) Rated dynamic current (kA)
0.2S 0.2  10P
5-200/5

0.2S

0.2

0.5S

0.5

10

15

15  15  80I1n 2.5I1n
300/5 25  50 
400/5 31.5  63 
500/5 31.5  63 
600/5 40  80 
Size/Installation

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Our certification team consists of 85+ engineers with more than 20 years of professional experience
24/7 Service. Average emergency response time is limited to less than 12 hours
Suitable for substations, industrial power grids, new energy projects and other demanding scenarios
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