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Application
The current transformer is designed for current,power measurement and relay protection in AC power system with rated frequency 50Hz,rated voltage 0.5KV and below.
Service condition
Altitude:up to 1000m above sea level
Ambient temperature:-5 to+40℃
Relative humidity:85%,at 20℃
Construction
The current transformer is bus type and cast-resin insulated,The seconday windings are wound on the core.The base plate is located at the botton for mounting.
Type meaning |
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Technical data
Performance conforms with IEC standard and GB1208-97"Current transformer".
Main technical data |
Type
|
Rated primary current(A) |
Rated secondary current(A) |
Primary ampere-trun |
Rated secondary burden cosφ＝0.8（VA） |
Primary current required by multi-turn primary winding (A) |
|
Class0.5 |
Class 1 |
Class 3 |
| LMZ1-0.5 |
5、10、20、50、100
15、30、75、150
40、200、300、400
|
5 |
100
150
200
300、400 |
5 |
7.5 |
|
5-50
15-75
40 |
| LMZJ1-0.5 |
5、10、20、30、50、75、100、150、300、40、200、400、500、600、800 |
5 |
300
400
500-800 |
10 |
15 |
|
5-150
40-200 |
| 1000、1200、1500、2000、3000 |
5 |
1000-3000 |
20 |
30 |
50 |
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Overall dimensions
| Type |
Current ratio (A) |
H(mm) |
h(mm) |
φD(mm) |
φd(mm) |
Weight(kg) |
| LMZ1-0.5 |
5-200/5 |
120 |
70 |
92 |
30 |
0.9 |
| 300/5 |
125 |
75 |
97 |
35 |
| 400/5 |
125 |
75 |
97 |
45 |
| LMZJ-0.5 |
5,10,15,20,30,50,
70,100,150/300/5 |
130 |
75 |
106 |
35 |
1.0 |
| 40,200,400/5 |
135 |
45 | | |
