LMZK (1、2、3)-10 35kV Open current transformer
LMZK-10 series cassette current transformer is suitable for current measurement and microcomputer protection of electrical equipment in 10kV AC power system.The current transformer has the characteristics of small volume, light weight,openable and easy to install.
Categories：
Core-through current transformer
Descriptio
LMZK-10 series cassette current transformer is suitable for current measurement and microcomputer protection of electrical equipment in 10kV AC power system.The current transformer has the characteristics of small volume, light weight,openable and easy to install.It is widely used in the switch cabinet of compact fully insulated ring main unit. It is easy and fast to install when it is directly stuck on the connected incoming and outgoing cables. It has been widely used in ABB safe ring/plus, uniswitch, Schneider RM6/sm6,Eaton SVS, Germany GA/Ge,France FB,South Korea SS and other compact fully insulated ring main unit switch cabinet, as well as in combined substation and cable distribution box.
The current transformer uses high-quality imported silicon steel sheet with high permeability as magnetic conductive material, which has the characteristics of separable iron core and low magnetic circuit loss. Its semicircular core and secondary winding are vacuum cast with high-quality epoxy resin in a flame-retardant plastic shell, which is moisture-proof, stable and maintenance free.
During installation, two semicircular rings are clamped on the split phase cable and tightly held with hoops.They are integrated with the cable,harmonious and beautiful.35mm2-40mm 210kV cable can be applied. The hoops are made of high-quality stainless steel,firm and reliable,and no eddy current.
According to the current ratio, accuracy level and rated load, the series can be divided into three types. Open type current transformers with different specifications and parameters can be customized according to user's requirements..
Technical data
|
Type |
Primary rated current range |
Rated load range |
(mm) Spec.& Dim |
Weight(kg) |
|
LMZK1-10 |
300-600A |
≤10VA |
Φ100*Φ50*35 |
0.7 |
|
LMZK2-10 |
50-600A |
≤40VA |
Φ110*Φ50*53 |
1.2 |
|
LMZK3-10 |
30-600A |
≤60VA |
Φ110*Φ50*105 |
2.4 |
|
Type |
LMZK1-10 |
|||||
|
Purpose |
Measuring current transformer |
Protection current transformer |
||||
|
Ratio 11/12 |
(VA) Accuracy class and rated burden |
(VA) Accuracy class and rated burden |
||||
|
0.5 |
1 |
3 |
10P15 |
10P10 |
10P5 |
|
|
300/1 |
1 |
2.5 |
3.75 |
1 |
||
|
400/1 |
2.5 |
3.75 |
3.75 |
1 |
2.5 |
|
|
500/1 |
2.5 |
3.75 |
5 |
2.5 |
3.75 |
|
|
600/1 |
2.5 |
3.75 |
5 |
1 |
2.5 |
3.75 |
|
300/5 |
2.5 |
3.75 |
5 |
2.5 |
||
|
400/5 |
3.75 |
5 |
7.5 |
3.75 |
||
|
500/5 |
5 |
7.5 |
10 |
2.5 |
5 |
|
|
600/5 |
5 |
7.5 |
10 |
2.5 |
5 |
|
|
Type |
LMZK2-10 |
|||||
|
Purpose |
Measuring current transformer |
Protection current transformer |
||||
|
Ratio 11/12 |
(VA) Accuracy class and rated burden |
(VA) Accuracy class and rated burden |
||||
|
0.2 |
0.5 |
1 |
10P15 |
10P10 |
10P5 |
|
|
50/1 |
1 |
2.5 |
1 |
|||
|
75/1 |
2.5 |
2.5 |
1 |
1 |
||
|
100/1 |
2.5 |
3.75 |
1 |
2.5 |
||
|
150/1 |
3.75 |
5 |
2.5 |
2.5 |
||
|
200/1 |
5 |
7.5 |
1 |
2.5 |
3.7 |
|
|
300/1 |
2.5 |
7.5 |
15 |
2.5 |
2.5 |
5 |
|
400/1 |
7.5 |
15 |
20 |
2.5 |
3.75 |
7.5 |
|
500/1 |
10 |
20 |
30 |
3.75 |
5 |
10 |
|
600/1 |
10 |
20 |
30 |
5 |
7.5 |
15 |
|
75/5 |
2.5 |
1 |
||||
|
100/5 |
2.5 |
2.5 |
1 |
|||
|
150/5 |
2.5 |
5 |
1 |
2.5 |
||
|
200/5 |
5 |
7.5 |
1 |
2.5 |
||
|
300/5 |
5 |
10 |
1 |
2.5 |
5 |
|
|
400/5 |
7.5 |
15 |
1 |
2.5 |
5 |
|
|
500/5 |
5 |
15 |
20 |
2.5 |
3.75 |
7.5 |
|
600/5 |
10 |
20 |
30 |
2.5 |
5 |
10 |
|
Type |
LMZK3-10 |
|||||||||
|
Purpose |
Measuring current transformer |
Protection current transformer |
Double winding current |
|||||||
| Ratio 11/12 |
(VA) Accuracy class and rated burden |
(VA) Accuracy class and rated burden |
(VA) Accuracy class and rated burden |
|||||||
|
0.2 |
0.5 |
1 |
10P15 |
10P10 |
10P5 |
0.5 |
1 |
10P10 |
10P5 |
|
|
20/1 |
1 |
1 |
||||||||
|
30/1 |
1 |
1 |
1 |
|||||||
|
40/1 |
1 |
12.5 |
1 |
2.5 |
||||||
|
50/1 |
2.5 |
2.5 |
2.5 |
2.5 |
1 |
|||||
|
75/1 |
2.5 |
3.75 |
1 |
2.5 |
3.75 |
1 |
2.5 |
1 |
2.5 |
|
|
100/1 |
3.75 |
5 |
2.5 |
3.75 |
2.5 |
2.5 |
1 |
|||
|
150/1 |
3.75 |
5 |
2.5 |
3.75 |
2.5 |
2.5 |
||||
|
200/1 |
5 |
7.5 |
3.75 |
5 |
3.75 |
2.5 |
||||
|
300/1 |
2.5 |
10 |
15 |
5 |
7.5 |
5 |
3.75 |
|||
|
400/1 |
5 |
15 |
20 |
7.5 |
10 |
7.5 |
3.75 |
|||
|
500/1 |
10 |
25 |
40 |
7.5 |
10 |
10 |
5 |
|||
|
600/1 |
15 |
30 |
50 |
10 |
15 |
15 |
7.5 |
|||
|
50/5 |
2.5 |
2.5 |
||||||||
|
75/5 |
2.5 |
5 |
2.5 |
2.5 |
1 |
|||||
|
100/5 |
3.75 |
7.5 |
2.5 |
3.75 |
2.5 |
1 |
||||
|
150/5 |
5 |
7.5 |
2.5 |
5 |
3.75 |
2.5 |
||||
|
200/5 |
7.5 |
10 |
2.5 |
7.5 |
5 |
1 |
2.5 |
|||
|
300/5 |
10 |
3.75 |
5 |
10 |
7.5 |
12.5 |
5 |
|||
|
400/5 |
5 |
15 |
3.75 |
5 |
10 |
10 |
5 |
10 |
||
|
500/5 |
10 |
20 |
5 |
7.5 |
15 |
15 |
7.5 |
15 |
||
|
600/5 |
10 |
30 |
5 |
7.5 |
15 |
20 |
10 |
20 |
||
Overall dimension drawing
Key words:
Open current transformer
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Zhengzhou KBT Transformer Instrument Co., Ltd. is a specialized production enterprise mainly based on power transformers, which integrates product development, production, sales, service and technology consulting.
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