Current transformer LZZBJ9-12
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.
Produced in 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.
Produced in 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
enclosure design; operating voltage; No. of series; reinforced; with winding for relay protection; with epoxy insulation (for indoor installation); support type; current transformer
Operating conditions:
- Ambient temperature: from −25°С to +40°С
- Altitude: up to 1000 m
- Degree of pollution: II
- Humidity: 90% at +20°C
- Ambient conditions — not chemically aggressive
- 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.
Документация
Технические характеристики
Technical characteristics
| Parameter | Value |
|---|---|
|
Accuracy class for winding for metering / protection |
0,2; 0,2S; 0,5; 0,5S / 5P; 10P |
| Rated/maximum operating voltage, kV | 10/12 |
| Уровень изоляции, кВ | 12/42/75 |
| Rated primary current, A | 5-3000 |
| Rated secondary current, A | 1; 5 |
| Rated secondary load with power factor cosф=0,8, В*А | 10; 15; 20; 30 |
| Safety ratio of secondary windings | from 5 to 10 |
| Quantity of secondary windings | from 1 to 5 |
| Overall dimensions, mm, not more | 155*310*225 |