Overview:
LDC is high-precision through-current CT is suitable for current measurement,
energy metering, signal sampling and microcomputer protection of 10kV-35kV
power supply equipment for AC power system. The current transformer has the
following characteristics: small size, light weight and convenient
installation. It has been installed in SafeRing/Plus, Uniswitch, RM6/SM6, SVS,
GA/GE, FB, SS, FTR and other series of fully insulated ring network switchgear.
Widely used in combined substations and cable distribution boxes. And it is
very suitable for RTI, FTU and other remote terminal equipment to form a
sampling unit to provide accurate data support for the entire system.
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.
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LDC Series Overview:
Model
|
Ø1 (mm)
|
Ø2 (mm)
|
D (mm)
|
H (mm)
|
h (mm)
|
LDC1-10
|
100
|
45
|
40
|
123
|
73
|
LDC2-10
|
100
|
45
|
70
|
123
|
73
|
LDC3-10
|
100
|
45
|
115
|
123
|
73
|
LDC4-10
|
100
|
62
|
40
|
123
|
73
|
LDC5-10
|
120
|
65
|
100
|
147
|
88
|
LDC6-10
|
90
|
40
|
100
|
112
|
68
|
LDC7-10
|
85
|
55
|
50
|
85
|
|
LDCJ1-10
|
120
|
45
|
65
|
147
|
87.5
|
LDCJ2-10
|
120
|
45
|
130
|
147
|
87.5
|
LDCJ1-35
|
138
|
54
|
60
|
157
|
88
|
LDCJ2-35
|
138
|
54
|
120
|
157
|
88
|
Dimensions drawing:
Rated primary current,Accuracy class and rated load:
model
|
LDCJ1-35
|
Rated primary current
(A)
|
Accuracy class and rated load (VA)
|
Double winding Accuracy class and rated
load (VA)
|
0.2S
|
0.2
|
0.5
|
10P20
|
10P15
|
10P10
|
0.2S
|
0.5
|
10P10
|
10P5
|
50
|
|
|
5
|
|
2.5
|
5
|
|
2.5
|
|
2.5
|
75
|
|
2.5
|
10
|
|
2.5
|
5
|
|
5
|
|
2.5
|
100
|
2.5
|
5
|
10
|
2.5
|
5
|
7.5
|
2.5
|
5
|
2.5
|
3.75
|
150
|
5
|
7.5
|
15
|
3.75
|
7.5
|
10
|
3.75
|
7.5
|
2.5
|
5
|
200
|
10
|
10
|
20
|
5
|
10
|
15
|
5
|
10
|
5
|
7.5
|
300
|
15
|
20
|
30
|
7.5
|
15
|
20
|
10
|
15
|
5
|
10
|
400
|
20
|
30
|
40
|
10
|
15
|
30
|
15
|
25
|
7.5
|
15
|
500
|
25
|
30
|
50
|
15
|
20
|
40
|
20
|
30
|
10
|
20
|
600
|
25
|
30
|
60
|
20
|
25
|
50
|
20
|
30
|
10
|
25
|
rated secondary current is 5A or 1A.