Current transformers cable type

The ELA... current transformers are intended for indoor use under the normal and severe conditions such as ships, mines, chemical industry etc. They can be used in the mains at rated voltage up to 0.72 kV, 50 ÷ 60 Hz frequency and can operate in abbient temperature range from 248 K (-25°C) to 323 K (50°C).

The ELA current transformers are produced in accuracy class 0.2; 0.5; 1; 3 and have a raised rated voltage up to 1.2 kV and test voltage up to 6 kV, which makes them possible for many applications.

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Technical data

Rated primary current	Ipr= 20 ÷ 1500 A
Continuous thermal current	Icth= ext. 120%; 200% available on request
Rated secondary current	Isr= 5 A or 1 A
Rated power	Sr = 0.5 ÷ 40 VA
Accuracy class	0.2S; 0.5S; 0.2; 0.5; 1; 3; CTs ELA type in accuracy class 0.2S; 0.5S; 0.2; 0.5 can be legalized
Rated short-time thermal current 1 sec. r.m.s.	Ith = 60 * Ipr
Rated dynamic current	Idyn = 2.5 * Ith
Rated frequency	fr = 50 ÷ 60 Hz
Max. voltage	Um = 0.72 lub 1.2 kV
Test voltage	Up = 3 lub 6 kV
Factor security	FS5 (other value available on request)

Product specification

Type/Technical data	Rated primary current	Rated power	Accuracy class	Rated secondary current
ELA 0 Ø16 or Ø22 Download specification	20 ÷ 300 A	0.5 ÷ 10 VA	0.5; 1; 3	5 A or 1 A
ELA 1 Ø22, Ø31 or Ø41 Download specification	50 ÷ 1000 A	1 ÷ 40 VA	0.2; 0.5; 1; 3 0.2S; 0.5S
ELA 1 for two ranges of primary current Ø22, Ø31 or Ø41 Download specification	50 ÷ 800 A	1.5 ÷ 30 VA	0.5; 1; 3
ELA 1 for many ranges of primary currents Ø22, Ø31 lub Ø41 Download specification	5 ÷ 200 A	1.5 ÷ 10 VA	0.5; 1; 3
ELA 1 quick magnetic saturation (FS2) Ø22, Ø31 lub Ø41 Download specification	50 ÷ 600 A	4 ÷ 40 VA	3
ELA 2 Ø60 Download specification	75 ÷ 1250 A	2.5 ÷ 30 VA	0.2; 0.5; 1; 3 0.2S; 0.5S
ELA 3 Ø90 Download specification	100 ÷ 1500 A	2.5 ÷ 30 VA	0.2; 0.5; 1; 3 0.2S; 0.5S