Current transformer LZZB7-35
LZZB7-35 (LZZB7-35W2 and LZZB7-35A) — support type current transformers in cast resin insulation, sealed. CTs are used for transmission of metering signal of current to devices of metering of energy including commercial metering, relay protection in 35kV grid.
CTs compy with the following standards: GB1208-2006, IEC60044-1, ГОСТ 7746-2001.
CTs compy with the following standards: GB1208-2006, IEC60044-1, ГОСТ 7746-2001.
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Описание
Designation:
operating voltage; No. of series; installation (outdoor); with winding for relay protection; with cast silicon insulation (outdoor); support type; current transformer
Design:
Current transformers of this type are completely sealed. They are dust and humidity resistant and they can be operating in wet tropical and high altitude conditions.
Документация
Технические характеристики
Technical characteristics| Parameter | Value |
|---|---|
|
Accuracy class of winding for metering / for protection |
0,2; 0,2S; 0,5; 0,5S/ 5P; 10P |
| Rated/maximum operating voltage, kV | 35/40.5 |
| Insulation level, kV | 40.5/95/190 |
| Rated primary current, A | 15-2000 |
| Rated secondary current, A | 1; 5 |
| Rated secondary load with power factor cosф=0,8, V*A | 10; 20; 50 |
| Safety ration of secondary windings | from 5 to10 |
| Quantity of secondary windings | from 1 to 5 |
| Overall dimensions, mm, not more | 435*610*330 |