The LDK series of split core-type current
transformers are suitable for current measurement, signal sampling and
microcomputer protection of electrical equipment in 10kV AC power systems. The
current transformer has the following characteristics: small size, light
weight, splittable and easy to install. It is widely used in compact
full-insulation ring network switchgear, and is very suitable for RSU, FTU and
other remote terminal equipment to form a sampling unit for the whole system
data support. It is quick and easy to attach directly to the connected incoming
and outgoing cable during installation. It has been widely used in compact
full-insulation ring switchgear such as SafeRing/Plus, Uniswitch, RM6/SM6, SVS,
GA/GE, FB, SS, etc. It is also used in combined substation and cable
distribution box.
Specifications:
Rated
frequency: 50Hz or 60Hz;
Rated
secondary current: 5A or 1A;
Power
frequency withstand voltage: 3kV/1min
Rated
expansion current: 120%ln;
Executive
standard: GB20840.2-2014;
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Conditions:
Temperature:
-35°C~+55°C
Daily
average humidity: ≤40%
Altitude:
≤3000m
Atmosphere:
without heavy pollution
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For more
details, please refer to the parameter table corresponding to each model.
Current transformers with different specifications and parameters can be
customized according to user requirements.
Specifications:
Rated frequency: 50Hz or 60Hz;
Rated secondary current: 5A or
1A;
Power frequency withstand
voltage: 3kV/1min
Rated expansion current:
120%ln;
Executive
standard: GB20840.2-2014;
|
Conditions:
Temperature: -35°C~+55°C
Daily average humidity: ≤40%
Altitude: ≤3000m
Atmosphere: without heavy
pollution
|
LDK series splittable type
current transformer
Model
|
Current ratio1V/5V
|
Rated load range
|
Dimensions (mm)
|
LDK1-10
|
300~800A
|
≤10VA
|
φ105×φ50×35
|
LDK2-10
|
40~1200A
|
≤30VA
|
φ110×φ50×52
|
LDK3-10
|
30~1200A
|
≤60VA
|
φ110×φ50×100
|
LDK4-35
|
50~600A
|
≤15VA
|
φ135×φ70×80
|
LDK5-35
|
50~1000A
|
≤10VA
|
φ150×φ100×75
|
LDK6-10
|
30~1200A
|
≤60VA
|
φ110×φ50×75
|
LDK7-10
|
300~600A
|
≤10VA
|
φ115×φ70×40
|
LDKS1-10
|
300~600A
|
≤10VA
|
φ70×φ30×40
|
LDKS2-10
|
300~600A
|
≤10VA
|
φ特定×φ40×55
|
LTK1-10
|
200~800A
|
≤5VA
|
φ130×80φ×45
|
LTK2-10
|
200~600A
|
≤5VA
|
φ140×φ96×30
|
Dimensions:
Specification table:
Model
|
LDK1-10
|
Current ratio
I1/I2
|
Accuracy level and rated
load(VA)
|
0.5
|
1
|
3
|
10P15
|
10P10
|
10P5
|
300/1
|
2.5
|
5
|
7.5
|
|
|
2.5
|
400/1
|
5
|
7.5
|
10
|
|
2.5
|
5
|
500/1
|
7.5
|
10
|
15
|
2.5
|
3.75
|
7.5
|
600/1
|
10
|
15
|
20
|
2.5
|
5
|
10
|
300/5
|
2.5
|
3.75
|
5
|
|
|
2.5
|
400/5
|
2.5
|
3.75
|
5
|
|
|
3.75
|
500/5
|
3.75
|
5
|
7.5
|
|
2.5
|
5
|
600/5
|
5
|
7.5
|
10
|
2.5
|
3.75
|
7.5
|
800/5
|
5
|
7.5
|
10
|
3.75
|
5
|
10
|