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LZZBJ9-12150b4 Current Transformer

Instrument Transformers

LZZBJ9-12150b4 Current Transformer

The LZZBJ9-12/150B4 is a high-performance indoor current transformer engineered for 12kV medium-voltage power systems. It delivers accurate current measurement and versatile protection signal conversion for switchgear, metering cabinets, and distribution panels. Available in multiple winding configurations, this model offers exceptional flexibility to meet diverse application requirements ranging from revenue metering to sophisticated relay protection.

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Model and Meaning

Technical Parameters

Rated primary current (A) Accuracy classes combination Rated secondary output (VA) Rated short-time thermal current (kA/s) Rated dynamic current (kA)
0.2S 0.2 0.5 (5)10P10 (5)10P15 (5)10P20
20-100 0.2(S)/10P
0.5/10P
0.2(S)/0.2/5P
0.2(S)/0.5/5P
0.2(S)/0.5/5P20
0.2(S)/5P10/10P15
0.5/5P10/10P20		 10 10 10*,30 15*,20 15*,10 15*,10 0.06I1n 0.15I1n
150-200
300-400 10 15 15*,30 20 15
500
600-800 15*,20
1000-1250 15 20 63 130

Note:The data marked with* in the table are parameters for class combination 0.2/5P10/10P15 and 0.5/5P10/10P20

Overall Dimension Drawing