LX series zero-sequence current transformer
is suitable for zero-sequence over-current protection and small-current
grounding line selection device in AC power system, distribution line, and
electrical equipment such as alternator and motor. The diameter of the cable is φ100mm～φ240mm.
The series of zero-sequence current
transformers are made of imported high-quality silicon steel sheets by special
process to form a toroidal core with high accuracy and accurate limiting
factor. The iron core and secondary winding are vacuum casted with high quality
epoxy resin. The plastic housing is moisture-proof, stable in performance and
maintenance-free. It is small in size, light in weight and small in space.
LXK series with splitable core type zero
sequence current transformer consists of two semi-rings, which can be installed
on the connected cable easily
|
Technical parameters:
|
Applicable conditions:
|
|
Rated
frequency: 50Hz or 60Hz;
|
Ambient
temperature e: -35 C. -+55 C. ,
|
|
Power
frequency withstand voltage 3kV, 1min;
|
average
temperature: ≤40 C.
|
|
P2
represents the primary polarity end, and S1 and S2 represent the secondary
polarity end;
|
altitude: ≤3000m
|
|
P2 and
S2 are the same name end (reduced polarity).
|
Atmospheric
conditions: no serious pollution in the atmosphere
|
|
Rated
secondary current: 5A or 1A
|
|
|
Anti-electromagnetic
interference: applied current 100A, interference current <5mA
|
|
Dimensions:
|
Model
|
Current ratio 1V/5V
|
Rated load range
|
Specification size (mm)
|
|
LXK(C)- Φ100
|
50～800A
|
≤15VA
|
φ165×φ100×65
|
|
LXK(C)- Φ120
|
50～800A
|
≤15VA
|
φ185×φ120×75
|
|
LXK(C)- Φ160
|
50～800A
|
≤15VA
|
φcustomize×φcustomize×72
|
|
LXZ135-85
|
20～150A
|
≤2.5VA
|
φcustomize×φcustomize×60
|
|
LXZ280-20
|
20～150A
|
≤2.5VA
|
φcustomize×φcustomize×customize
|
Specification
table:
|
Model
|
LXK(C)- Φ120
|
|
Rated current ratio
|
Accuracy and rated load (VA)
|
|
0.5
|
1
|
3
|
10P15
|
10P10
|
|
50/1
|
1
|
2.5
|
5
|
2.5
|
5
|
|
75/1
|
1.5
|
3
|
6
|
2.5
|
5
|
|
100/1
|
2
|
4
|
7.5
|
3.75
|
7.5
|
|
150/1
|
2.5
|
5
|
7.5
|
3.75
|
7.5
|
|
200/1
|
3
|
6
|
10
|
5
|
10
|
|
250/1
|
3.5
|
7
|
12
|
5
|
10
|
|
300/1
|
4
|
8
|
15
|
5
|
10
|
|
50/5
|
|
2.5
|
5
|
|
2.5
|
|
75/5
|
2.5
|
3.75
|
5
|
2.5
|
5
|
|
100/5
|
2.5
|
5
|
7.5
|
2.5
|
5
|
|
150/5
|
3.75
|
5
|
7.5
|
3.75
|
7.5
|
|
200/5
|
5
|
5
|
10
|
3.75
|
7.5
|
|
250/5
|
5
|
5
|
10
|
5
|
10
|
|
300/5
|
7.5
|
10
|
15
|
5
|
10
|
|
400/5
|
7.5
|
10
|
15
|
5
|
10
|
|
500/5
|
7.5
|
10
|
15
|
5
|
10
|
|
600/5
|
7.5
|
10
|
15
|
5
|
10
|
|
800/5
|
7.5
|
10
|
15
|
5
|
10
|