Safe and secure payments using Abraa safe trade systems Product Specification
| Brand | Altea Solutions |
| Condition | New |
| Warranty | YES |
Product Descriptions
Recommended solution for metering and protection devices compatible with the new generation of instrument transformers. the customer has to check the installation conditions taking into account that calibration is valid for the agreed cable length and burden. the meter / relay applies via software the correction coefficents to compensate the ratio and phase errors respect to rated values.
low-power voltage output from capacitive Voltage divider and / or Rogowski coil current sensor. features: high linearity, wide dinamic range, no need of auxiliary power supply, accuracy class up to 0,5 in the operating temperature range, typical frequency bandwidth 10 kHz. limits: compatible with output cables up to 10 m, calibration of each sensor by means of correction coefficients for ratio and phase, calibration valid for the rated secondary burden.
Specifications:
|
VT CHARACTERISTICS |
|
|
Rated primary voltage, Upr |
20/43 kV |
|
Rated secondary voltage, Usr |
0,460 V |
|
Rated voltage factor, Ku |
1,9 for 8h |
|
Rated transformation ratio, Km |
27000 / I |
|
Rated Burden, Rbr |
33nF // IMO |
|
Accuracy class (after calibration) |
0,5 |
|
Bandwidth (-3dB) |
30 Hz — 5 kHz |
|
Primary terminal capacity (average value) |
1,3 pF |
|
CT CHARACTERISTICS |
|
|
Rated primary current, Ipr |
300 A |
|
Rated short time withstand thermal current, Ith |
16 kA / Is |
|
Dynamic nominal current, Idyn |
31,5 kA |
|
Rated Extended Primary Current Factor, Kprc |
1,8 |
|
Rated Continuous Thermal Current, Icth |
540 A |
|
Rated secondary voltage, Usr |
0,081 V |
|
Rated transformation ratio, Kra |
3670 A / 1 V |
|
Rated Burden, Rbr |
47nF // 13,3k1) |
|
Accuracy class (with correction factor) |
0,5 |
|
Bandwidth (-3dB) |
30 Hz — 5 kHz |
|
COMBINED CHARACTERISTICS |
|
|
Rated insulation level |
24/70/150 |
|
Maximum voltage, Um |
24 kV |
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