Current converters AC/DC
Current converters are designed for supplying measuring and protective circuits of electrical power devices. Current converters AC/DC transform primary alternating current to rated direct current.
Current converters transform alternating promary current up to 120% value with accuracy ±3% in range from 20% to 120%.
Advantage of our current transformers is rated short-time thermal current (1 second):
Ith = 60 * Ipn.
Secondary circuit of current converter can not be opened.
Caution! Opening the secondary circuit may cause damage!
Ask for productTechnical data
| Rated secondary direct current | Isn= 20 mA |
| Rated primary alternating current | Ipn= 1 ÷ 3000 A |
| Permanent overload | Ipn= ext. 120% |
| Rated burden | S2n = 50 ÷ 750 Ω |
| Accuracy |
±3% |
| Rated short-time thermal current 1 sec. r.m.s. | Ith = 60 * Ipn |
| Rated dynamic current (for converters with primary winding and cable type)l |
Idyn = 2.5 * Ith |
| Rated dynamic current (for bus bar type converters) |
depends on circuit (practically unlimited) |
| Rated frequency | f = 50 ÷ 60 Hz |
| Max. voltage | Um = 0.72 lub 1.2 kV |
| Test voltage | Up = 3 lub 6 kV |
Product specification
| Type/Technical data | Primary current | Rated secondary direct current |
Accuracy |
| with primary winding | |||
|
ELA 0d |
1 ÷ 20 A | 20 mA | ±3% |
|
ELA 1d W20 |
5 ÷ 300 A | ||
| cable type | |||
|
ELA 0d |
50 ÷ 150 A | 20 mA | ±3% |
|
ELA 1d |
50 ÷ 600 A | ||
| bus-bar type | |||
|
ISN 1d |
50 ÷ 800 A | 20 mA | ±3% |
|
ISN 2d |
100 ÷ 1250 A | ||
|
ISN 3d |
400 ÷ 2000 A | ||
|
ISN 30d |
300 ÷ 2000 A | ||
|
ISN 31d; ISN 32d |
500 ÷ 3000 A | ||
|
ISN 4d |
500 ÷ 3000 A | ||