LZZBJ9 36kV Indoor Single Current Transformer

Application

The indoor high altitude LZZBJ9 36kV current transformer of epoxy resin cast insulated and totally-enclosed structure is intended for power measurement, current monitoring and relay protection in the line of up to 35 kV and AC 50-60 Hz. It is applicable to air insulated switchgear. It conforms to GB 1208, JJG 1021 and IEC 60044-1 standards.

Specifications

Structure overview
This current transformer is epoxy resin cast insulated.
The primary outlet terminal identification is P1 and P2; the secondary is 1S1, 1S2, 2S1, 2S2 and so on.

Service conditions
Installation site: indoor.
Ambient temperature: -15℃～+40℃, daily average temperature not more than +30℃.
Altitude: does not exceed 3,000 m.
Humidity: the average value of the relative humidity measure for a period of 24 h does not exceed 95 percent.
Contamination severity: class Ⅱ.
No severe shake or bump in the installation site.
The ambient air is not efficiently polluted by dust, smoke, corrosive gases, vapors or salt.

Outline Dimension

Parameter

LZZBJ9-36-250W1 Single Ratio

Rated transfomation ratio(A)	Accuary classes combination	COSφ=0.8 Rated output			ALF	FS	Short-time thermal curent lth(kAVS)	Rated dynamic current Idyn(kA)
		Measuring		Protective
		0.2(S)	0.5	10P
20-200/5	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 20	10 15 20	5 (10)	150l1n	375l1n
300/5							31.5	80
400/5							31.5	80
500/5							40	100
600/5							50	125
800/5							63	125
1000/5							80	160
1200～1500/5							80	160
1500~2000/5							100	160
2000～2500/5							100	160

LZZBJ9-36-250W2 Single Ratio

Rated transformation ratio(A)	Accuary classes combination	COSφ=0.8 Rated output(VA)			ALF	FS	Short-time thermal current lth(kA/S)	Rated dynamic current ldyn(kA)
		Measuring		Protective
		0.2(S)	0.5	10P
20-200/5	0.2(S)/0.2(S)/0.5 0.2(S)/0.5/0.5/10P 0.2(S)/0.5/10P/10P 0.2(S)/10P/10P/10P	10 15	15	15 20	10 15 20	5 (10)	150l1n	375l1n
300/5							31.5	80
400/5							31.5	80
500/5							40	100
600/5							50	125
800/5							63	125
1000/5							80	160
1200～1500/5							80	160
1500～2000/5							100	160
2000~2500/5							100	160

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