LZZBJ9 12kV Indoor Current Transformer

Application

Current Transformer LZZBJ9 is made of indoor cast-resin insulated totally enclosed structure. It’s designed for current power measurement and relay protection in AC power system with rated frequency 50Hz, rated voltage 12kV and below.

Specifications

Rated insulation level: 12/42/75kV.

Rated secondary current: 5A or 1A.

Power frequency withstand voltage: 12kV.

Rated frequency: 50/60Hz.

Ambient temperature: -5°C ~+40°C.

Altitude: ≤1000m.

Standard: IEC 60044-1.

Outline Dimension

Parameter

Rated current ratio (A)	Accuracy classes combination	Rated output (VA) COSФ=0.8			FS	ALF	1s short-time thermal current (kA)	Rated dynamic current (kA)
		Measuring		Protection
		0.2(s)	0.5	10P
10-200/5	0.2(s)/0.2(s) 0.2(s)/0.5 0.2(s)/10P 0.5/10P 0.2s/0.5/10P 0.2/0.5/10P	10 15	15	15	5 (10)	10 15 20	150I1n	375I1n
300/5							31.5	80
400/5							31.5	80
500/5							40	100
600/5							50	125
800/5				20			63	125
1000/5							80	160
1200-1500/5							80	160
1500-2000/5							100	160
2000-3150/5							130	160

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