Current transformer LZZBJ12-12
Transformer with sealed cast insulation of support type. Used for transmission of metering signal of current to power metering devices, including commercial metering, relay protection and automation in power grid of 10kV 50Hz rated voltage.
CT is produced and tested accordance with standards GB1208-2006, IEC60044-1, ГОСТ 7746-2001.
CT has a terminal box with transparent cover for connection of secondary load with possibility of sealing.
CT is produced and tested accordance with standards GB1208-2006, IEC60044-1, ГОСТ 7746-2001.
CT has a terminal box with transparent cover for connection of secondary load with possibility of sealing.
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Описание
Designation
Design of enclosure; operating voltage; No. of series; reinforced; winding for relay protection; with epoxy insulation (for indoor); support type; current transformer
Operating conditions:
Operating conditions:
- Ambient temperature: from −25°C to +40°C
- Humidity: 90% at +20°C.
- Ambient conditions — not agressive
- Place of installation: no vibration
Main advantages:
Transformer is produced with case epoxy insulation resistible to humidity and pollution. Secondary and primary windings are in the common insulated enclosure. There are three designs of enclosure subject to primary rated current. The dimensions and weight is small. It can be installed in any position. CT can be installed inside narrow switchgear panels with small pole-to-pole distance.
Документация
Технические характеристики
Technical characteristics| Parameter | Value |
|---|---|
|
Accuracy class of winding for metering / protection |
0,2; 0,2S; 0,5; 0,5S/ 5P; 10P |
| Rated/maximum operating voltage рабочее, kV | 10/12 |
| Insulation level, kV | 12/42/75 |
| Rated primary current, A | 2-3000 |
| Rated secondary current, A | 1; 5 |
| Rated secondary load with power factor cosф=0,8, V*A | 10; 15; 20; 30; 40 |
| Safety ration of secondary windings | from 5 to 10 |
| Quantity of secondary windings | from 1 to 5 |
| Overall dimensions, mm, not more | 149*345*246 |