Summary
LZJ(C,D)-10Q Current transformer is of an all work-condition post type with epoxy pouring wholly sealed insulation, used for measurement of current and electric energy power as well as relay protection in the AC circuit of rated frequency 50Hz and rated voltage 10kV. This product is the whole sealing one designed on basis of previous LZJ(C, D)-10 product. Having overcome the disadvantage of the old product that the surface creep distance is too small to make Class S product, LZJ(C,D)-10Q current transformer can completely replace LZJ(C,D)-10 type, it can be widely used for HXGN1-10 box-type AC metallic enclosed ring main writ, HK-10D type ring main writ, HGKG-10 type ring main writ and other ring main writs.
Technical parameter
The performance of products is conformed to IEC standard and GB20840.2-2014 Current Transformer.
Rated insulation level:12/42/75kV
Load power factor: COS¢=0.8(Lag)
Rated frequency:50Hz
Rated secondary current:5A, 1A
Partial discharge level: In conformity to GB5583-85 standard, its partial discharge is not more then 20PC.
Surface creep distance:225mm, meeting polluted area grade II.
Main Technical parameter
| Rated primary current(A) | Accuracy class | Rated secondary output(VA) | Rated short time thermal current (KA virtual value) | Rated dynamic stability current (KA peak) | |||||
| 0.2S | 0.2 | 0.5S | 0.5 | 10P10 | 10P15 | ||||
| 5-300 | 0.2S/10P 0.2/10P 0.5S/10P 0.5/10P 0.2/0.5 0.2/0.2 | 10 | 10 | 10 | 10 | 15 | 15 | 100/1h | 250/1h |
| 400 | 45 | 112.5 | |||||||
| 500 | 56 | 140 | |||||||
| 600 | 15 | ||||||||
| 800 | 20 | 20 | 80 | 200 | |||||
| 1000 | 25 | ||||||||
Outline and installation dimension
(Outline and installation dimension of LZJC-10Q current transformer with accuracy class 0.2)
