Current-voltage converters AC/DC
Current-voltage converters AC/DC transform primary alternating current Ipn to rated secondary direct voltage Usn. They are designed for supplying measuring and protective circuits of electrical power devices.
Current converters transform alternating primary 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.
The secondary circuit of current-voltage converter should be loaded according to technical data or should be opened.
Technical data
| Rated secondary direct voltage | Usn= 1 V; 2 V; 5 V; 10 V; 15 V |
| Rated primary alternating current | Ipn= 1 ÷ 3000 A |
| Permanent overload | Ipn= ext. 120% |
| Rated burden | S2n = 5 ÷ 75 kΩ |
| 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 voltage |
Accuracy |
| with primary winding | |||
|
EULA 0d |
1 ÷ 20 A | 1 V; 2 V; 5 V; 10 V; 15 V | ±3% |
|
EULA 1d W20 |
5 ÷ 300 A | ||
| cable type | |||
|
EULA 0d |
50 ÷ 150 A | 1 V; 2 V; 5 V; 10 V; 15 V | ±3% |
|
EULA 1d |
50 ÷ 600 A | ||
| bus-bar type | |||
|
IUSN 1d |
50 ÷ 800 A | 1 V; 2 V; 5 V; 10 V; 15 V | ±3% |
|
IUSN 2d |
100 ÷ 1250 A | ||
|
IUSN 3d |
400 ÷ 2000 A | ||
|
IUSN 30d |
300 ÷ 2000 A | ||
|
IUSN 31d; IUSN 32d |
500 ÷ 3000 A | ||
|
IUSN 4d |
500 ÷ 3000 A | ||