Overview

20KV Current Transformer (LZZB9-24-180B-4)

LZZB9-24-180B-4 type current transformer is suitable for power systems with rated frequency of 50Hz or 60Hz and rated voltage of 20kV for energy measurement, current measurement and protection.

Installation location: indoors.
Ambient temperature: maximum temperature 40℃; minimum temperature -5℃; daily average temperature does not exceed 30℃.
Atmospheric conditions: There is no serious pollution in the atmosphere.

This series of current transformers is a fully enclosed structure cast by epoxy resin and has excellent insulation properties and moisture-proof capabilities. The product is compact, small in size, light in weight and easy to clean on the surface. The secondary outlet terminal is equipped with a terminal box, which is safe and reliable. There are grounding bolts and six mounting holes for installation on the bottom plate of the product.

Product Details

Model	Rated primary current	Rated secondary current	Accuracy class	Burden	Short time thermal current	Dynamically stable current	Rated insulation level
Model	A	A		VA	kA/s	kA/s	KV
LZZB9-24-180B-4	20	5A 1A	0.2/0.2/0.2 0.2/0.5/0.5 0.2/10P10/10P10 0.5/10P10/10P10 0.2/10P15/10P15 0.5/10P15/10P15	10/10/10 10/10/10 10/15/15 10/15/15 10/10/15 10/10/15	3	7.5	12/42/75
	30				4.5	11.25
	40				6	15
	50				7.5	18.75
	75				11.25	28.125
	100				15	37.5
	150				22.5	56.25
	200				31.5	80
	300				45	112.5
	400				45	112.5
	500				45	112.5
	600		0.2/0.2/0.2 0.2/0.5/0.5 0.2/10P10/10P10 0.5/10P10/10P10 0.2/10P15/10P15 0.5/10P15/10P15	10/10/10 10/10/10 10/15/15 10/15/15 10/10/15 10/10/15	63	130
	800				63	130
	1000				80	160
	1200				80	160
	1250				80	160