Product Description
LMCK series current transformers are applicable for AC power system 35kV and measurement of current of power supply equipment below 10KV also can be used for microcomputer protection. This type of current transformer employs imported silicon steel which with high permeability as magnetic material, has the characteristics of Small magnetic circuit loss and can be split, its semicircular core and secondary windings employ high quality epoxy resin vacuum, casting in plastic-case which is flame retardance anti-moisture, stable performance, no maintenance.
Parameters
| Technical parameters |
|
| Standards |
IEC60044-1; IEC 61869-2; ANSI C57.13; NTC 2205; GB1208-2006 |
| Accuracy Class |
0.5%, 1% |
| Range of primary rated current |
300-3000A |
| Range of Rated load |
≤25VA |
| Rated frequency |
50/60Hz |
| Rated secondary current |
5A or 1A |
| Secondary winding power frequency withstand voltage |
3kV, 1min |
| Safety Factor Rating |
(FS) <5 |
| Flame retardant ABS plastic shell inside, jaw waterproof apron. |
| Mechanical parameters |
| Aperture (mm) |
Φ185 |
| Dimensions (W×D×H) (mm) |
350×283×55 |
| Weight (kg) |
4.5 |
| Working conditions |
| Operating temperature |
-35°C to +55°C, not exceeding +40°C |
| Environment |
outdoors or indoors |
| The height of above sea level |
0- 3000m |
| Conditions |
No existence of severely begrimed, erosive and radioactive gas in the air. Continuous working under the rated current is allowed. |
SELECTION GUIDE
| Model |
Primary rated current |
Rated load |
Aperture (mm) |
Description (mm) |
Weight (kg) |
Material |
Water-proof |
| LZCK-55 |
100-1500A |
≤10VA |
φ55 |
180×138×52 |
2 |
PC |
IP65 |
| LMCK185-10 |
300-3000A |
≤25VA |
φ185 |
350×283×55 |
4.5 |
PC |
IP65 |
| LZCK310-10 |
300-600A |
≤10VA |
φ50 |
φ50 x φ110 x 32 |
1 |
Resin |
silicon case (option) |
| LZCK322-10 |
30-600A |
≤10VA |
φ50 |
φ50 x φ110 x 52 |
1.6 |
Resin |
silicon case (option) |
| LZCK350-10 |
20-600A |
≤25VA |
φ50 |
φ50 x φ110 x 105 |
3.1 |
Resin |
silicon case (option) |
| LZCG530-10 |
30-600A |
≤20VA |
φ45 |
φ45 x φ120 x 65 |
2.1 |
Resin |
silicon case (option) |
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